Electronic Throttle Conversion Kit with GT3 Manifolds, Naturally Aspirated. Porsche 964 / 993  ❭  AMS905013

Adapt Motorsport GT3 manifold electronic throttle conversion kit for naturally aspirated classic Porsche 911 applications 964 and 993 engines. It combines a Bosch 82mm drive-by-wire throttle body with AMS fuel-rail, resonance-flap and vacuum-control hardware. 

Fits:

• 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
• Porsche 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) RS 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97

What This Product Does

The conversion is based around large-volume Porsche 996 GT3 intake manifolds and introduces electronic throttle control to compatible air-cooled 911 engine builds. Specially designed adapters accommodate the shorter cylinder spacing of the air-cooled engine, while the integrated resonance-flap and vacuum-control components support a complete intake installation.

Functions

• Controls engine airflow through a Bosch 82mm electronic throttle body
• Adapts 996 GT3-style intake hardware to compatible air-cooled Porsche engines
• Provides fuel-rail mounting for short, medium or long EV14-style injectors
• Operates the resonance flap using the supplied vacuum components
• Provides connections for brake-booster vacuum, idle-air bypass and other vacuum requirements
• Accommodates a Bosch temperature and manifold-pressure sensor

Technical Details

• GT3 intake manifold port diameter: 49mm; the manufacturer compares this with 43mm for a standard 964 manifold 
• Three-bolt adapters are offered with 42mm or 44mm ports for 964 and 993 3.6ltr engines
• AMS intake manifolds are cast in aluminium and developed using Computational Fluid Dynamics modelling
• The AMS intake T-piece and resonance-flap components are CNC-machined with a black anodised finish
• Supplied Bosch T-MAP sensor is rated at 1.15 bar, with a 3.0-bar version listed as an option

Base Kit Contents

• AMS high-flow intake T-piece with vacuum and Bosch T-MAP sensor ports
• AMS fuel-rail kit with fittings
• Bosch 82mm electronic throttle body and connector kit
• AMS CNC-machined resonance-flap kit with sealed roller bearings
• Bosch 1.15-bar temperature and pressure sensor with connector
• Throttle, resonance-flap and intake-adapter rubber sleeves with hose clamps
• Vacuum canister, solenoid, check valve, connector kit and hoses
• Required fasteners and fittings

Configuration Information

Separate configurations are offered for two-bolt and three-bolt cylinder heads, with versions designed either to include or exclude the pair of AMS GT3 intake manifolds. Confirm the required cylinder-head pattern, adapter port diameter and manifold configuration before selection.

FAQs

• Does every kit include the electronic throttle body?
  Yes. The common base specification includes the Bosch 82mm electronic throttle body and its connector kit.
• Are GT3 intake manifolds included?
  This depends on the selected configuration. The manufacturer lists separate versions with and without the pair of AMS GT3 manifolds.
• Does the installation require calibration?
  The electronic throttle, T-MAP sensor, injectors and resonance-flap control must be correctly configured within the vehicle's compatible engine-management system.