Electronic Fuel Injection Throttle Kits

Adapt Motorsport E-Throttle drive-by-wire conversion kit for Porsche 964 and non-VarioRam 993 intake manifolds. It combines a Bosch 74mm electronic throttle, CNC-machined aluminium components and Bosch T-MAP sensing, with complete configurations adding intake adaptors and standard fuel rails.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50

What This Product Does

The conversion replaces the original Porsche throttle centre section fitted to 964 and non-VarioRam 993 intake manifolds. A compatible aftermarket ECU can manage throttle operation electronically and may also use the E-Throttle for idle control, removing the need for the ageing factory idle-air bypass valve.

Functions

• Converts the intake system from mechanical or cable-operated control to drive-by-wire operation.
• Measures intake-air temperature and manifold pressure through a combined Bosch T-MAP sensor.
• Allows compatible engine management to regulate idle through the electronic throttle.
• Removes cable drag, stretch and resistance associated with multi-part mechanical linkages.
• Supports ECU-dependent functions such as cruise control, automatic throttle blipping, traction control and boost control.

Technical Details

• Bosch 74mm electronic throttle with connector kit.
• CNC-machined aluminium throttle intake adaptor.
• CNC-machined aluminium resonance tube with flap assembly, sealed roller bearings and vacuum actuator.
• Bosch 1.15 bar T-MAP sensor option for naturally aspirated engines.
• Bosch 3.0 bar T-MAP sensor option for turbocharged applications.
• Complete two-bolt and three-bolt configurations are offered with standard fuel rails and intake adaptors.

Kit Configurations

• Centre-section kit: throttle adaptor, resonance tube assembly, Bosch electronic throttle, selected T-MAP sensor, connector kits, fasteners and vacuum hose.
• Complete two-bolt kit: centre section, two-bolt intake adaptors in 34mm, 39mm, 40mm or 42mm sizes, 964 manifold adaptors and standard fuel rails.
• Complete three-bolt kit: centre section, three-bolt intake adaptors in 42mm or 43.5mm sizes, manifold adaptors and standard fuel rails.

Additional Parts Required

• Vacuum solenoid and canister.
• Air filter and suitable adaptor.
• Rubber sleeves and hose clamps for the intake-manifold ports; compatible original Porsche parts may be reused.
• Compatible electronic accelerator pedal, aftermarket ECU, wiring and engine-specific calibration.

Optional Components

• 964/993 vacuum kit and mounting hardware.
• 964/993 electronic accelerator pedal kit.
• 993 adaptor for retaining the factory rubber intake, airflow meter and airbox.
• 964 adaptor for the factory rubber intake and airbox, including an airflow-meter delete kit.
• 964/993 air-filter adaptor kit or advanced fuel rail kit.

Why Replacement Matters

Drive-by-wire conversion removes ageing cables and complex mechanical linkages from the throttle-control system while allowing a suitable ECU to manage throttle position and idle behaviour electronically. Correct wiring, programming and safety calibration are essential, so installation should be completed by an experienced technician familiar with aftermarket engine management.

FAQs

• Does this fit a VarioRam 993 manifold?
  No. The conversion is specified for Porsche 964 and non-VarioRam 993 intake manifolds.
• Which T-MAP sensor should be selected?
  The 1.15 bar option is intended for naturally aspirated applications, while the 3.0 bar version is provided for turbocharged engines.
• Is an aftermarket ECU required?
  Yes. The electronic throttle requires compatible engine management, suitable wiring and correct calibration.
• Is the vacuum kit included?
  The centre-section configuration excludes the separate vacuum solenoid and canister kit.
• Can the original airbox be retained?
  Adapt Motorsport lists separate 964 and 993 adaptors for installations retaining applicable factory intake and airbox components.

Sizes Porsche 911 intake manifolds
Carburetor/Bosch MFI Ø32mm engine side - Ø40mm ITB side. Recommended for early 2.0ltr / 2.2ltr engines

Injectors options that can be used - 260cc / 300cc / 380cc / 420cc / 480cc / 520cc

This is a direct replacement kit for replacing carburetors while keeping the OEM look in your engine bay. 

The intake manifolds and riser plates are manufactured out of a single piece of 6082 aluminum and come in 2 styles. These differ in design due to the shape of the mounting flange for the cylinder head. The intake manifold can be used as replacement parts for the OEM part when damaged or has to be replaced*.
The ITBs are manufactured out of cast aluminum, whist the fuel rails are made out of aluminum 6060 extrusion profile and come with AN6 ORB connection for the fuel lines. The direct mount fuel pressure regulator is directly mounted to the fuel rails, so in this case you don’t need to drill additional holes in the engine bay for mounting a fuel pressure regulator.
The throttle linkage and all mounting hardware is made from stainless steel and the pivoting point of the throttle linkage is a ball and socket design for smooth operation. The levers allow you to adjust and finetune mechanical movement of the ITBs

The dimensions of the assembly are the same as the OEM carburetor setup and the riser plate comes with same mounting holes as the OEM carburetors, in this way you are able to use the OEM air filter box and OEM airhorns. Also the riser plates come with mounting options for an air intake temperature sensor, this is nicely hidden away between the ITBs. The diameter for the ITBs in the riser plate is 45mm. There is also an option for using airhorns, In this case you don’t need the riser plates.

The crank sensor and trigger wheel kit are additional and this type of kit is needed when using ITBs like these. Besides switching to ITBs you will need a stand alone ECU to get the fuel injection to work. Our kit only works with engines like the 3.0ltr that came with a “ big distributor”. You can leave the distributor or you can remove this unit when you are going to use a discoil type of ignition. In for case an adapter is included in the crank sensor kit. The pulley comes in 2 dimensions to choose from, a Ø116mm pulley and Ø126,5mm pulley.

Fuel injectors, fuel lines, standalone ECU, wiring harness are NOT included in the kit.

*In case of using as a replacement part 3 mounting holes for the carburetors or ITBs need to be re thread with a timesert or helicoil. Otherwise it is impossible to mount a threaded stud.

Kit Includes
2 x Full billet, hard anodised intake manifolds
6 x ITB complete with lever assembly
6 x Airhorns 45mmØx30mm
2 x Fuel rail with mounting hardware
1 x Throttle linkage with 2 throttle connection rods
1 x Direct mount fuel pressure regulator
2 x Riser plates with 1 air temperature sensor (for use with OEM air filter box)
1 x Crank sensor and trigger wheel kit (optional)
All needed gaskets and mounting hardware.

Sizes Porsche 911 intake manifolds
Carburetor/Bosch MFI Ø34mm engine side - Ø40mm ITB side. Recommended for early 2.7ltr engines

Injectors options that can be used - 260cc / 300cc / 380cc / 420cc / 480cc / 520cc

This is a direct replacement kit for replacing carburetors while keeping the OEM look in your engine bay. 

The intake manifolds and riser plates are manufactured out of a single piece of 6082 aluminum and come in 2 styles. These differ in design due to the shape of the mounting flange for the cylinder head. The intake manifold can be used as replacement parts for the OEM part when damaged or has to be replaced*.
The ITBs are manufactured out of cast aluminum, whist the fuel rails are made out of aluminum 6060 extrusion profile and come with AN6 ORB connection for the fuel lines. The direct mount fuel pressure regulator is directly mounted to the fuel rails, so in this case you don’t need to drill additional holes in the engine bay for mounting a fuel pressure regulator.
The throttle linkage and all mounting hardware is made from stainless steel and the pivoting point of the throttle linkage is a ball and socket design for smooth operation. The levers allow you to adjust and finetune mechanical movement of the ITBs

The dimensions of the assembly are the same as the OEM carburetor setup and the riser plate comes with same mounting holes as the OEM carburetors, in this way you are able to use the OEM air filter box and OEM airhorns. Also the riser plates come with mounting options for an air intake temperature sensor, this is nicely hidden away between the ITBs. The diameter for the ITBs in the riser plate is 45mm. There is also an option for using airhorns, In this case you don’t need the riser plates.

The crank sensor and trigger wheel kit are additional and this type of kit is needed when using ITBs like these. Besides switching to ITBs you will need a stand alone ECU to get the fuel injection to work. Our kit only works with engines like the 3.0ltr that came with a “ big distributor”. You can leave the distributor or you can remove this unit when you are going to use a discoil type of ignition. In for case an adapter is included in the crank sensor kit. The pulley comes in 2 dimensions to choose from, a Ø116mm pulley and Ø126,5mm pulley.

Fuel injectors, fuel lines, standalone ECU, wiring harness are NOT included in the kit.

*In case of using as a replacement part 3 mounting holes for the carburetors or ITBs need to be re thread with a timesert or helicoil. Otherwise it is impossible to mount a threaded stud.

Kit Includes
2 x Full billet, hard anodised intake manifolds
6 x ITB complete with lever assembly
6 x Airhorns 45mmØx30mm
2 x Fuel rail with mounting hardware
1 x Throttle linkage with 2 throttle connection rods
1 x Direct mount fuel pressure regulator
2 x Riser plates with 1 air temperature sensor (for use with OEM air filter box)
1 x Crank sensor and trigger wheel kit (optional)
All needed gaskets and mounting hardware.

Sizes Porsche 911 intake manifolds
Bosch injection system Ø39mm engine side - Ø42mm ITB side. Recommended for 3.0ltr engines
Bosch injection system Ø41mm engine side - Ø45mm ITB side. Recommended for custom set-ups or tuned engines
Bosch injection system Ø42mm engine side - Ø45mm ITB side. Recommended for custom set-ups or tuned engines

Injectors options that can be used - 260cc / 300cc / 380cc / 420cc / 480cc / 520cc

This is a direct replacement kit for replacing carburetors while keeping the OEM look in your engine bay. 

The intake manifolds and riser plates are manufactured out of a single piece of 6082 aluminum and come in 2 styles. These differ in design due to the shape of the mounting flange for the cylinder head. The intake manifold can be used as replacement parts for the OEM part when damaged or has to be replaced*.
The ITBs are manufactured out of cast aluminum, whist the fuel rails are made out of aluminum 6060 extrusion profile and come with AN6 ORB connection for the fuel lines. The direct mount fuel pressure regulator is directly mounted to the fuel rails, so in this case you don’t need to drill additional holes in the engine bay for mounting a fuel pressure regulator.
The throttle linkage and all mounting hardware is made from stainless steel and the pivoting point of the throttle linkage is a ball and socket design for smooth operation. The levers allow you to adjust and finetune mechanical movement of the ITBs

The dimensions of the assembly are the same as the OEM carburetor setup and the riser plate comes with same mounting holes as the OEM carburetors, in this way you are able to use the OEM air filter box and OEM airhorns. Also the riser plates come with mounting options for an air intake temperature sensor, this is nicely hidden away between the ITBs. The diameter for the ITBs in the riser plate is 45mm. There is also an option for using airhorns, In this case you don’t need the riser plates.

The crank sensor and trigger wheel kit are additional and this type of kit is needed when using ITBs like these. Besides switching to ITBs you will need a stand alone ECU to get the fuel injection to work. Our kit only works with engines like the 3.0ltr that came with a “ big distributor”. You can leave the distributor or you can remove this unit when you are going to use a discoil type of ignition. In for case an adapter is included in the crank sensor kit. The pulley comes in 2 dimensions to choose from, a Ø116mm pulley and Ø126,5mm pulley.

Fuel injectors, fuel lines, standalone ECU, wiring harness are NOT included in the kit.

*In case of using as a replacement part 3 mounting holes for the carburetors or ITBs need to be re thread with a timesert or helicoil. Otherwise it is impossible to mount a threaded stud.

Kit Includes
2 x full billet, hard anodised intake manifolds
6 x ITB complete with lever assembly
6 x airhorns 45mmØx30mm
2 x fuel rail with mounting hardware
1 x throttle linkage with 2 throttle connection rods
1 x Direct mount fuel pressure regulator
2 x riser plates with 1 air temperature sensor (for use with OEM air filter box)
1 x crank sensor and trigger wheel kit (optional)
All needed gaskets and mounting hardware.

The Adapt Motorsport GT3 manifold individual throttle body kit enables 996 GT3-style intake manifolds and a resonance flap system to be integrated with an existing ITB-equipped classic Porsche 911 engine. Configurations are available with a PA12 nylon or machined aluminium intake T-piece, with manifold inclusion determined by the selected option.

Fits:
Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Porsche 911 1978-1983 3.0L / SC
Porsche 911 1984-1986 3.2L
Porsche 911 1987-1989 3.2L G50
Porsche 964 (911) C2 1989-93
Porsche 964 (911) C4 1989-93
Porsche 993 (911) C2 1994-95
Porsche 993 (911) C4 1994-95
Porsche 993 (911) C2S 1994-95
Porsche 993 (911) C4S 1994-95

What This Product Does

This system provides the hardware needed to connect an individual throttle body installation to large-volume GT3 intake manifolds. Its resonance flap assembly, intake T-piece, filter and vacuum-control components form an integrated intake arrangement for a custom classic 911 engine build.

Functions

• Connects compatible GT3 intake manifolds to an existing individual throttle body system
• Supports operation of the supplied intake resonance flap
• Provides filtered air through the included K&N air filter
• Supplies the vacuum hardware, hoses and fittings required for flap control
• Allows a choice of PA12 nylon or machined aluminium intake T-piece

Technical Details

• GT3 manifold port diameter: 49mm
• Reference comparison stated by the manufacturer: standard 964 manifold 43mm and 3.2 manifold 39mm
• Base nylon T-piece manufactured from automotive-grade PA12
• CNC-machined resonance flap assembly uses sealed roller bearings
• AMS machined components have a black anodised finish
• Custom adapter option comprises six machined aluminium adapters made to supplied ITB dimensions

Kit Contents and Options

The base kit contains the intake T-piece, K&N air filter, CNC-machined resonance flap assembly, four resonance-flap and throttle sleeves, six intake-adapter sleeves, hose clamps, vacuum canister, solenoid, check valve, connector kit, mounting hardware, vacuum hoses, fasteners and fittings.

Nylon T-piece configurations are offered with or without a pair of AMS GT3 intake manifolds. Aluminium T-piece configurations use a machined filter adapter matching the resonance flap assembly and are also offered with or without manifolds.

The ITB-to-GT3 adapter set adds six custom aluminium adapters. These require accurate measurements from the individual throttle body installation and are only supplied with the applicable base-kit options; the adapter set is not offered separately.

Why This Kit May Be Required

This kit is intended for engine builds where an existing ITB system is to be combined with GT3-style intake plenums and a controlled resonance flap. Correct measurements, mechanical installation and engine-specific calibration remain essential because throttle body dimensions and modified engine specifications can differ between applications.

FAQs

• Are intake manifolds included?
  Manifold inclusion depends on the selected configuration. Options are available both with and without a pair of AMS GT3 intake manifolds.
• What T-piece materials are offered?
  The system can be configured with an automotive-grade PA12 nylon T-piece or a machined aluminium T-piece and filter adapter.
• Are adapters supplied for the existing throttle bodies?
  Six custom aluminium adapters can be specified, but accurate dimensions from the throttle body kit must be provided for their design and manufacture.
• Can the custom adapter set be ordered separately?
  No. The manufacturer specifies that the adapter set is only supplied with the applicable base-kit configurations.
• Does installation require engine calibration?
  Engine management and fuelling should be configured for the individual engine, throttle bodies and intake arrangement by a suitably experienced specialist.

Descriptiion

The Idle control kit can be used with our ECU to control the idle speed.

Can be used with
KMS.06.001 - MA 5 ECU
KMS.01.001 - MD 35 ECU

Rennen ITG Air Filter Assembly - Normal for Rennen by JSR Individual Barrel Throttle Body Upgrades

The Rennen ITG Air Filter Assembly - Normal is a complete induction filtration package designed specifically for use with Rennen by JSR Individual Barrel Throttle Body (ITB) systems. The kit includes premium ITG foam air filters together with the required mounting and securing hardware for installation directly onto the Rennen velocity stacks.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93

While Individual Throttle Bodies dramatically improve airflow, throttle response and engine performance, they also require effective filtration to protect the engine from dust, dirt and airborne contaminants. The Rennen ITG Air Filter Assembly provides this protection while maintaining the unrestricted airflow characteristics that make Barrel ITB conversions so desirable.

Designed to integrate seamlessly with the Rennen by JSR induction system, this filter assembly offers an excellent balance between airflow, filtration efficiency and engine protection, making it ideal for fast road, touring and occasional track use.

What Does the ITG Air Filter Assembly Do?

The ITG Air Filter Assembly protects the engine by filtering incoming air before it enters the throttle bodies and combustion chambers.

Its primary functions include:

• Preventing dirt ingestion
• Protecting cylinders and piston rings
• Protecting valves and valve seats
• Maintaining clean airflow
• Supporting engine longevity
• Preserving performance
• Reducing engine wear

The filters allow the engine to breathe freely while preventing harmful contaminants from entering the intake system.

Why Are Air Filters Essential on ITB Systems?

Individual Throttle Bodies are designed to maximise airflow and engine response. Without air filters, debris and contaminants can be drawn directly into the engine.

Proper filtration helps:

• Protect expensive engine components
• Prevent premature cylinder wear
• Maintain engine reliability
• Reduce intake contamination
• Support consistent tuning
• Preserve airflow characteristics
• Improve long-term performance

For road-driven vehicles, filtration should always be considered an essential part of any ITB installation.

Why Choose ITG Foam Filters?

ITG filters are widely recognised throughout motorsport and performance automotive applications for their excellent combination of airflow and filtration efficiency.

Benefits include:

• High airflow capacity
• Excellent filtration performance
• Lightweight construction
• Washable and reusable design
• Motorsport-proven technology
• Long service life
• Consistent airflow characteristics
• Ideal for high-performance engines

The foam filter construction allows superior airflow while maintaining effective protection against airborne contaminants.

Why Are Barrel ITB Upgrades So Popular?

Rennen by JSR Barrel Throttle Bodies provide one of the most exciting induction upgrades available for Porsche engines.

Benefits include:

• Instant throttle response
• Improved airflow efficiency
• Enhanced engine breathing
• Increased power potential
• Exceptional induction sound
• Improved driver engagement
• Greater tuning flexibility
• Stunning engine bay appearance

The addition of the ITG Air Filter Assembly ensures these performance gains can be enjoyed while maintaining essential engine protection.

Why Choose the Rennen ITG Air Filter Assembly?

This kit has been developed specifically to work with Rennen by JSR Barrel ITB systems and velocity stacks.

Benefits include:

• Complete filtration solution
• Includes ITG foam filters
• Includes mounting and securing hardware
• Direct fitment to velocity stacks
• Maintains unrestricted airflow
• Protects engine internals
• Suitable for road and track applications
• Professional installation finish       

Rennen ITG Air Filter Assembly - Rally for Rennen by JSR Individual Barrel Throttle Body Upgrades

The Rennen ITG Air Filter Assembly - Rally is the ultimate filtration solution for Rennen by JSR Individual Barrel Throttle Body (ITB) conversions. Designed for demanding road, rally, touring and motorsport applications, this upgraded filtration package combines premium ITG foam filters with enhanced sealing technology and dedicated mounting hardware to provide superior engine protection in dusty and challenging operating environments.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93

Like the standard ITG Air Filter Assembly, the Rally version includes high-performance ITG foam filters and all the required hardware for secure installation onto the velocity stacks. However, the Rally specification takes protection one step further with a more robust construction and improved sealing against airborne dust and contaminants.

For owners operating their Porsche in rally, endurance, touring or harsh road conditions, the Rally Air Filter Assembly provides additional peace of mind without compromising the airflow and throttle response benefits of the Rennen by JSR Barrel ITB system.

What Does the Rally ITG Air Filter Assembly Do?

The Rally Air Filter Assembly filters incoming air before it enters the throttle bodies and combustion chambers.

Its primary functions include:

• Preventing dust ingestion
• Protecting cylinders and piston rings
• Protecting valves and valve seats
• Reducing intake contamination
• Supporting engine longevity
• Maintaining airflow efficiency
• Preserving engine performance

The enhanced sealing design provides an additional layer of protection in environments where airborne dust and debris are more prevalent.

Why Are Air Filters Essential on ITB Systems?

Individual Throttle Bodies significantly increase airflow potential and engine responsiveness. However, without effective filtration, harmful particles can enter the engine and cause accelerated wear.

Proper air filtration helps:

• Protect expensive engine components
• Reduce internal engine wear
• Maintain tuning consistency
• Protect piston rings and cylinder bores
• Improve long-term reliability
• Preserve engine performance
• Reduce maintenance costs

For road and motorsport applications alike, high-quality air filtration should always be considered an essential part of any ITB installation.

Why Choose the Rally Version?

The Rally Air Filter Assembly has been developed for environments where maximum engine protection is required.

Compared to the standard filter assembly, the Rally version offers:

• Improved sealing against dust ingress
• More robust filter mounting arrangement
• Enhanced durability
• Greater protection in harsh environments
• Improved filtration security during prolonged use
• Ideal for rally, touring and endurance applications
• Additional confidence for high-value performance engines

This makes it the preferred option for owners seeking maximum engine protection without sacrificing performance.

Why Choose ITG Foam Filters?

ITG filters are widely respected throughout motorsport and performance automotive applications for their ability to combine high airflow with exceptional filtration efficiency.

Benefits include:

• High airflow capacity
• Excellent filtration performance
• Washable and reusable design
• Lightweight construction
• Motorsport-proven technology
• Long service life
• Consistent airflow characteristics
• Suitable for high-performance engines

The foam construction provides outstanding protection while supporting the airflow demands of Individual Throttle Body systems.

Why Are Barrel ITB Upgrades So Popular?

Rennen by JSR Barrel Throttle Bodies provide one of the most exciting induction upgrades available for Porsche engines.

Benefits include:

• Instant throttle response
• Improved airflow efficiency
• Increased engine breathing capacity
• Greater power potential
• Enhanced torque delivery
• Exceptional induction sound
• Motorsport-inspired driving experience
• Stunning engine bay presentation

The Rally Air Filter Assembly ensures these benefits can be enjoyed while providing enhanced protection for valuable performance engines.

Why Choose the Rennen ITG Rally Air Filter Assembly?

Developed specifically for Rennen by JSR Barrel ITB systems, this filtration package offers the ideal balance between airflow, protection and durability.

Benefits include:

• Enhanced dust sealing
• Premium ITG filtration technology
• Complete installation solution
• Includes mounting and securing hardware
• Maintains unrestricted airflow
• Protects engine internals
• Suitable for road, rally and motorsport use
• Professional installation finish       

Description

The Lambda UEGO (Universal Exhaust Gas Oxygen, pronounced “You-Way-Go”) CAN controller is a highly advanced broadband lambda controller designed for a Bosch LSU 4.9 broadband lambda probe. The sensor measures the oxygen level in the exhaust at a rate of 2000 samples/sec and converts this to a lambda value.

Connecting the KMS Lambda UEGO CAN controller is very easy thanks to the supplied wiring harness. The wiring harness contains the connections for the lambda probe, ground, analog output and CAN-bus output with which the controller can communicate.

A complete set for use with our MD35 or MP25 , the set includes:

• Lambda controller
• Wiring
• Superseal connector 3-pin
• 0,5m Canbus connection cable
• Weldbung
• 4.9 Bosch lambda probe
• Instruction manual

Features:

• Independent use with our KMS CAN displays
• Suitable for all types of fuel (gasoline, diesel, E85, methanol, etc.)
• Uses a modern Bosch LSU 4.9 broadband lambda sensor
• Analog and CAN communication
• Operating range from 0.65 to 1.5 Lambda (9.5 to 22.1 Air/fuel ratio)
• Controlled temperature of the lambda probe from 810°C ±10°C
• High sample rate of 2000Hz
• LED light on the housing for easy troubleshooting
• Water resistant
• Compact design

Rennen MAP Sensor for Rennen by JSR Individual Barrel Throttle Body Upgrades

The Rennen MAP Sensor is a critical engine management component designed specifically for use with Rennen by JSR Individual Barrel Throttle Body (ITB) upgrades. Working alongside the Rennen Vacuum Manifold system, the MAP (Manifold Absolute Pressure) Sensor provides the engine control unit (ECU) with accurate engine load data, allowing precise fuel and ignition calculations throughout the entire rev range.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93

When converting a Porsche engine to Individual Barrel Throttle Bodies, the original intake and airflow characteristics change significantly. Unlike conventional plenum intake systems, individual throttle bodies generate multiple pulsing vacuum signals which must be stabilised and measured correctly. The Rennen MAP Sensor, combined with the Rennen Vacuum Manifold, delivers the accurate load signal required for modern ECU calibration and reliable engine operation.

Whether you are building a fast road Porsche, a track-focused machine or a competition engine, the MAP sensor is one of the most important components in ensuring your ITB conversion performs exactly as intended.

What Does a MAP Sensor Do?

MAP stands for Manifold Absolute Pressure.

The sensor continuously measures the vacuum and pressure levels within the intake system and sends this information to the ECU. The ECU then uses this data to calculate engine load and make real-time adjustments to fuel delivery and ignition timing.

A properly functioning MAP sensor helps provide:

• Accurate engine load measurement
• Precise fuel mapping
• Optimised ignition timing
• Stable idle quality
• Improved throttle response
• Enhanced drivability
• Reliable cold starting
• Consistent engine performance

Without a stable and accurate MAP signal, modern engine management systems cannot correctly determine engine operating conditions.

Why Is a MAP Sensor Essential for ITB Conversions?

Individual Throttle Body systems dramatically improve airflow and throttle response, but they also create unique tuning challenges.

Unlike a traditional intake manifold, each throttle body generates its own vacuum pulse. The Rennen Vacuum Manifold combines these signals into a smooth vacuum source which the MAP sensor can accurately measure.

This allows:

• Standalone ECUs to calculate engine load correctly
• More accurate fuel delivery
• Improved ignition control
• Stable idle operation
• Better low-speed drivability
• Enhanced throttle transitions
• Improved tuning consistency

The result is an ITB-equipped Porsche that not only sounds incredible but also drives smoothly and predictably.

Why Are Barrel ITB Upgrades So Popular?

Rennen by JSR Barrel Throttle Bodies are engineered to maximise airflow while delivering a motorsport-inspired driving experience.

Benefits include:

• Instant throttle response
• Improved engine breathing
• Increased power potential
• Enhanced torque delivery
• Exceptional induction sound
• Improved driver engagement
• Modern EFI compatibility
• Stunning engine bay appearance

When paired with a properly calibrated ECU and accurate MAP sensor data, the system delivers both performance and drivability.

Why Choose the Rennen MAP Sensor?

Developed specifically for Rennen by JSR ITB applications, this sensor provides the accuracy and reliability required for professional-level engine management calibration.

Benefits include:

• Accurate vacuum and pressure measurement
• Compatible with Rennen Vacuum Manifold systems
• Supports standalone ECU installations
• Essential for ITB engine management
• Improves tuning accuracy
• Enhances drivability
• Suitable for road and motorsport applications
• Reliable long-term performance       

Cam Position Sensor Mounting Bracket for ITB Conversions

The Rennen Cam Position Sensor Mounting Bracket is a precision-engineered component designed specifically for Porsche 911 and Porsche 964 Individual Throttle Body (ITB) conversions. Developed to provide a secure and accurate mounting location for a cam position sensor, this bracket enables modern engine management systems to utilise camshaft position data for improved ignition timing, fuel delivery and overall engine control.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93

As Porsche enthusiasts increasingly move towards advanced EFI and standalone ECU systems, accurate engine position monitoring becomes critical. The cam position sensor mounting bracket provides the stability and precision required to ensure reliable sensor operation in both high-performance road and motorsport applications.

Designed to integrate seamlessly with Rennen by JSR ITB systems, this bracket helps unlock the full potential of modern engine management while preserving the character of the classic air-cooled Porsche engine.

What Does a Cam Position Sensor Mounting Bracket Do?

The mounting bracket securely positions the camshaft position sensor relative to the engine's camshaft trigger reference point.

This allows the ECU to accurately determine camshaft position and synchronise critical engine functions, including:

• Sequential fuel injection
• Sequential ignition control
• Accurate engine timing calculation
• Cylinder identification
• Advanced ECU tuning strategies
• Improved engine management precision

Without a stable and accurately positioned sensor mount, the ECU may struggle to maintain consistent timing and engine synchronisation.

Why Is a Cam Position Sensor Important?

Modern engine management systems rely on precise engine position information to optimise performance.

Cam position data helps provide:

• Improved ignition accuracy
• More precise fuel delivery
• Enhanced engine response
• Improved idle stability
• Better cold-start performance
• Greater tuning flexibility
• Optimised engine efficiency
• Support for advanced ECU functionality

For high-performance Porsche engine builds, accurate camshaft position monitoring is often essential for extracting maximum performance and drivability.

Why Is an ITB Upgrade So Appealing?

Individual Throttle Body systems are widely regarded as one of the most desirable naturally aspirated performance upgrades available for Porsche engines.

Unlike conventional intake systems, ITBs provide each cylinder with its own dedicated throttle body, dramatically improving airflow characteristics and throttle response.

Benefits of a Rennen by JSR ITB conversion include:

• Instant throttle response
• Improved engine breathing
• Increased airflow efficiency
• Enhanced induction sound
• Greater tuning flexibility
• Improved driver engagement
• Increased performance potential
• Motorsport-inspired engine character

When combined with modern EFI and engine management systems, ITBs deliver a unique driving experience that blends classic Porsche character with modern performance technology.

Why Choose the Rennen by JSR Cam Sensor Bracket?

A precision-engineered sensor mounting solution is critical for accurate ECU operation.

Benefits include:

• Secure sensor mounting
• Accurate sensor positioning
• Improved ECU signal reliability
• Enhanced engine management performance
• Greater tuning accuracy
• Improved engine synchronisation
• Reliable operation in road and motorsport environments
• Professional-quality installation       

Crankshaft Position Sensor Mounting Bracket for ITB Conversions

The Rennen Crankshaft Position Sensor Mounting Bracket is a precision-engineered component developed specifically for Porsche 911 and Porsche 964 Individual Throttle Body (ITB) conversions. Designed to provide accurate and stable mounting of the crankshaft position sensor, this bracket enables modern engine management systems to monitor crankshaft position and engine speed with exceptional precision.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93

As Porsche performance builds increasingly adopt standalone ECUs and modern EFI systems, accurate crankshaft position data has become essential for reliable ignition timing, fuel delivery and engine synchronisation. The Rennen by JSR mounting bracket ensures the crankshaft sensor remains securely positioned in relation to the trigger wheel, providing a clean and consistent signal under all operating conditions.

Whether building a fast-road Porsche, a high-performance air-cooled engine or a dedicated motorsport application, this bracket forms a critical part of a professional EFI and ITB conversion.

What Does a Crankshaft Position Sensor Mounting Bracket Do?

The crankshaft position sensor mounting bracket securely locates the crankshaft sensor in the correct position relative to the trigger wheel mounted on the engine.

This allows the ECU to accurately monitor:

• Crankshaft position Engine speed (RPM)
• Ignition timing reference
• Fuel injection timing
• Engine synchronisation
• Advanced ECU control functions

A stable and accurately positioned sensor is critical for reliable engine operation and precise ECU calibration.

Why Is a Crankshaft Position Sensor Important?

The crankshaft position sensor is one of the most important inputs used by a modern engine management system.

Without an accurate crankshaft signal, the ECU cannot reliably control ignition or fuel delivery.

Benefits of accurate crankshaft position monitoring include:

• Precise ignition timing
• Accurate fuel injection control
• Stable engine operation
• Improved starting performance
• Enhanced throttle response
• Greater tuning flexibility
• Improved engine efficiency
• Reliable high-RPM performance

For performance-oriented Porsche engine builds, accurate crankshaft data forms the foundation of effective ECU control and engine tuning.

Why Is an ITB Upgrade So Appealing?

Individual Throttle Body systems are widely regarded as one of the most exciting naturally aspirated performance upgrades available for Porsche engines.

By providing each cylinder with its own dedicated throttle body, airflow restrictions are reduced and throttle response is dramatically improved.

Benefits of a Rennen by JSR ITB conversion include:

• Immediate throttle response
• Improved airflow efficiency
• Enhanced engine breathing
• Increased performance potential
• Greater tuning flexibility
• Distinctive induction sound
• Motorsport-inspired engine character
• Increased driver engagement

When paired with modern EFI and engine management systems, ITBs offer a unique blend of classic Porsche character and modern performance technology.

Why Choose the Rennen by JSR Crank Sensor Bracket?

A precision-engineered crankshaft sensor mounting solution is essential for reliable ECU operation.

Benefits include:

• Accurate sensor positioning
• Stable trigger wheel alignment
• Consistent ECU signal quality
• Improved ignition timing accuracy
• Enhanced engine management reliability
• Professional EFI conversion installation
• Suitable for road and motorsport applications
• Supports advanced engine tuning strategies       

Rennen ITG Plenum Flange Set for Rennen by JSR Individual Barrel Throttle Body Upgrades

The Rennen ITG Plenum Flange Set is a precision-engineered conversion solution designed specifically for Rennen by JSR Individual Barrel Throttle Body (ITB) systems. These bespoke flanges attach directly to the top of the Rennen Barrel Throttle Bodies and provide a secure mounting platform for an intake plenum chamber, replacing the traditional velocity stack arrangement.

Fits:

• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93

Plenum Inlet Diameter Options:

48mm – suitable for Porsche 3.2ltr, 3.5ltr and 3.6ltr engines
50mm – suitable for Porsche 4.0ltr engines.

Please note:
Plenum adaptor flanges are not available for 2.7 or 3.0ltr engine applications.

Supplied complete with the required mounting and securing hardware, the flange set allows engine builders and tuners to configure their induction system for plenum operation while retaining all the airflow benefits of the Rennen Barrel ITB architecture. Please note that the plenum chamber itself is not included.

This system is ideal for builders seeking alternative intake packaging solutions, improved intake air management, advanced engine management strategies or custom naturally aspirated and forced induction applications.

What Does the ITG Plenum Flange Set Do?

The flange set creates a mounting interface between the Barrel Throttle Bodies and a plenum chamber.

Its primary functions include:

• Providing secure plenum mounting
• Replacing traditional velocity stacks
• Creating a sealed induction system
• Supporting custom intake configurations
• Improving intake packaging options
• Allowing integration with plenum-based induction systems
• Supporting advanced engine management strategies

The flanges form the critical connection point between the throttle bodies and the plenum assembly.

Why Use a Plenum Instead of Velocity Stacks?

Velocity stacks are ideal for maximising throttle response and creating the classic ITB appearance. However, some applications benefit from using a plenum chamber.

Advantages of plenum systems include:

• Controlled intake air supply
• Improved intake packaging flexibility
• Easier integration with air filter systems
• Reduced intake noise
• Consistent air distribution
• Improved airflow management
• Greater flexibility for custom engine builds

The choice between velocity stacks and a plenum depends on the engine's intended use and performance objectives.

Why Is the Plenum Flange Set Important?

Without the correct mounting solution, a plenum cannot be securely attached to the throttle body assembly.

The Rennen ITG Plenum Flange Set provides:

• Correct fitment to Rennen Barrel ITBs
• Reliable sealing surfaces
• Secure plenum attachment points
• Professional installation quality
• Simplified custom intake fabrication
• Compatibility with bespoke induction systems
• Long-term durability

The flange set is the foundation of any successful plenum-based ITB installation.

Why Are Barrel ITB Upgrades So Popular?

Rennen by JSR Barrel Throttle Bodies are designed to maximise airflow and engine responsiveness while offering exceptional tuning flexibility.

Benefits include:

• Instant throttle response
• Increased airflow efficiency
• Enhanced engine breathing
• Greater power potential
• Improved torque characteristics
• Exceptional tuning capability
• Motorsport-inspired engineering
• Stunning engine bay presentation

The Plenum Flange Set expands these possibilities by allowing the induction system to be tailored to the specific requirements of the engine build.

Why Choose the Rennen ITG Plenum Flange Set?

Developed specifically for Rennen by JSR ITB systems, these flanges offer a professional and reliable solution for plenum-based induction conversions.

Benefits include:

• Precision-engineered fitment
• Direct compatibility with Rennen Barrel ITBs
• Complete mounting hardware included
• Supports custom plenum installations
• Professional installation solution
• Durable construction
• Suitable for road and motorsport applications       

Rennen ITBs for Air-Cooled Porsche 911 - Advanced Roller Barrel Individual Throttle Bodies 

The Rennen ITBs by JSR represent the next generation of individual throttle body technology for air-cooled Porsche 911 engines. Designed and engineered specifically to extract optimal performance from classic Porsche flat-six engines, these innovative roller barrel throttle bodies deliver exceptional airflow, sharper throttle response, and improved engine efficiency compared to conventional butterfly valve throttle body systems.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50

Developed through extensive research, flow simulation analysis and real-world testing, the Rennen ITB system provides a premium induction solution for performance-focused Porsche enthusiasts, restorers, track-day drivers and motorsport applications.

Whether you are building a high-performance Porsche 911 engine or converting a classic air-cooled Porsche to modern EFI, Rennen ITBs by JSR offer a significant advancement in intake technology.

Why Choose Rennen Roller Barrel ITBs?

Unlike traditional individual throttle bodies that utilise a butterfly valve positioned directly in the airflow path, the Rennen ITB system features a precision-engineered tapered roller barrel design.

This innovative approach provides several key advantages:

Unrestricted Airflow

The roller barrel design eliminates the butterfly valve obstruction found in conventional throttle bodies. With no throttle plate disrupting airflow, air moves more efficiently into the engine, improving volumetric efficiency and overall performance.

Increased Air Velocity

Because there is no butterfly valve occupying space within the throttle bore, the throttle body diameter can be optimised to maintain higher air velocity. Higher intake air speed promotes superior cylinder filling and enhanced engine response throughout the rev range.

Superior Fuel Atomisation

At partial throttle openings, airflow passes directly over the fuel injector. This promotes exceptional atomisation of the air-fuel mixture, improving combustion efficiency, drivability and throttle progression.

Instant Throttle Response

The short distance between the roller barrel and the inlet valve creates a highly responsive induction system, delivering immediate engine response and a direct connection between driver input and engine output.

 The ITB kit comes with the ITBs mounted on intake manifolds and with fuel rails made for the EV6 injector type. 

Advanced Flow Simulation & Development

Extensive computational fluid dynamics (CFD) analysis and development testing have been carried out to optimise every aspect of the Rennen ITB design.

Flow simulation data demonstrates:

• Direct airflow over the fuel injector during part-throttle operation.
• Significantly reduced turbulence around the injector area compared to traditional butterfly throttle bodies.
• Up to 20% less airflow restriction at full throttle when compared with conventional ITB systems.
• Improved airflow consistency across all cylinders for enhanced engine balance and performance.

The result is a highly efficient induction system capable of supporting both fast road and high-performance motorsport applications.

Premium Motorsport-Grade Construction

Every Rennen ITB by JSR system is manufactured to the highest standards using precision CNC machining and premium materials.

Precision CNC Machined

All components are machined from high-grade 6082-T6 aluminium to ensure exceptional dimensional accuracy and durability.

Perfect Airflow Distribution

Tight manufacturing tolerances ensure evenly distributed airflow across all throttle bodies, promoting balanced cylinder performance and simplified engine tuning.

Easy Synchronisation

The robust design incorporates minimal joints and connections, allowing straightforward throttle synchronisation and reducing the need for ongoing adjustment.

Long-Term Reliability

Throttle barrels are mounted within sealed ball bearings for smooth operation, durability and long service life under demanding conditions.

Premium Sealing Technology

All sealing surfaces utilise Viton O-rings to prevent false air entry and maintain optimal engine performance.

Quality Components Throughout

Only premium bearings, rod ends and stainless-steel fasteners are used throughout the assembly, ensuring reliability and durability in both road and track environments.

Hard Anodised Finish - Available in Gun Metal or Black Finish

All aluminium components receive a hard anodised gunmetal grey finish, providing corrosion resistance and an attractive motorsport inspired appearance.

Specification
Fuel Rails machined for EV6 injector type
2 bolt inlet manifold to cylinder head mounting
48mm velocity stack ID
120mm velocity stack length

The Ultimate Porsche Individual Throttle Body Upgrade

For enthusiasts seeking the ultimate air-cooled Porsche induction system, Rennen ITBs by JSR combine cutting-edge engineering, advanced airflow technology and premium construction quality. The innovative roller barrel design delivers exceptional throttle response, improved airflow efficiency, enhanced fuel atomisation and proven performance gains.

Rennen ITBs for Air-Cooled Porsche 911 - Advanced Roller Barrel Individual Throttle Bodies 

The Rennen ITBs by JSR represent the next generation of individual throttle body technology for air-cooled Porsche 911 engines. Designed and engineered specifically to extract optimal performance from classic Porsche flat-six engines, these innovative roller barrel throttle bodies deliver exceptional airflow, sharper throttle response, and improved engine efficiency compared to conventional butterfly valve throttle body systems.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC

Developed through extensive research, flow simulation analysis and real-world testing, the Rennen ITB system provides a premium induction solution for performance-focused Porsche enthusiasts, restorers, track-day drivers and motorsport applications.

Whether you are building a high-performance Porsche 911 engine or converting a classic air-cooled Porsche to modern EFI, Rennen ITBs by JSR offer a significant advancement in intake technology.

Why Choose Rennen Roller Barrel ITBs?

Unlike traditional individual throttle bodies that utilise a butterfly valve positioned directly in the airflow path, the Rennen ITB system features a precision-engineered tapered roller barrel design.

This innovative approach provides several key advantages:

Unrestricted Airflow

The roller barrel design eliminates the butterfly valve obstruction found in conventional throttle bodies. With no throttle plate disrupting airflow, air moves more efficiently into the engine, improving volumetric efficiency and overall performance.

Increased Air Velocity

Because there is no butterfly valve occupying space within the throttle bore, the throttle body diameter can be optimised to maintain higher air velocity. Higher intake air speed promotes superior cylinder filling and enhanced engine response throughout the rev range.

Superior Fuel Atomisation

At partial throttle openings, airflow passes directly over the fuel injector. This promotes exceptional atomisation of the air-fuel mixture, improving combustion efficiency, drivability and throttle progression.

Instant Throttle Response

The short distance between the roller barrel and the inlet valve creates a highly responsive induction system, delivering immediate engine response and a direct connection between driver input and engine output.

 The ITB kit comes with the ITBs mounted on intake manifolds and with fuel rails made for the EV6 injector type.

Advanced Flow Simulation & Development

Extensive computational fluid dynamics (CFD) analysis and development testing have been carried out to optimise every aspect of the Rennen ITB design.

Flow simulation data demonstrates:

• Direct airflow over the fuel injector during part-throttle operation.
• Significantly reduced turbulence around the injector area compared to traditional butterfly throttle bodies.
• Up to 20% less airflow restriction at full throttle when compared with conventional ITB systems.
• Improved airflow consistency across all cylinders for enhanced engine balance and performance.

The result is a highly efficient induction system capable of supporting both fast road and high-performance motorsport applications.

Premium Motorsport-Grade Construction

Every Rennen ITB by JSR system is manufactured to the highest standards using precision CNC machining and premium materials.

Precision CNC Machined

All components are machined from high-grade 6082-T6 aluminium to ensure exceptional dimensional accuracy and durability.

Perfect Airflow Distribution

Tight manufacturing tolerances ensure evenly distributed airflow across all throttle bodies, promoting balanced cylinder performance and simplified engine tuning.

Easy Synchronisation

The robust design incorporates minimal joints and connections, allowing straightforward throttle synchronisation and reducing the need for ongoing adjustment.

Long-Term Reliability

Throttle barrels are mounted within sealed ball bearings for smooth operation, durability and long service life under demanding conditions.

Premium Sealing Technology

All sealing surfaces utilise Viton O-rings to prevent false air entry and maintain optimal engine performance.

Quality Components Throughout

Only premium bearings, rod ends and stainless-steel fasteners are used throughout the assembly, ensuring reliability and durability in both road and track environments.

Hard Anodised Finish - Available in Gun Metal or Black Finish

All aluminium components receive a hard anodised gunmetal grey finish, providing corrosion resistance and an attractive motorsport inspired appearance.

Specification
Fuel Rails machined for EV6 injector type
2 bolt inlet manifold to cylinder head mounting
45mm velocity stack ID
120mm velocity stack length

The Ultimate Porsche Individual Throttle Body Upgrade

For enthusiasts seeking the ultimate air-cooled Porsche induction system, Rennen ITBs by JSR combine cutting-edge engineering, advanced airflow technology and premium construction quality. The innovative roller barrel design delivers exceptional throttle response, improved airflow efficiency, enhanced fuel atomisation and proven performance gains.