Speed / Reference / Knock Sensors

Dead centre sensor.
Sensor for upper dead centre



Fits:
Porsche 911 1984-89
Porsche 924S 1986-88
Porsche 944 1984-91

Click 'Zoom in' for large parts diagram.
Diagram ref no 24

Related reference numbers
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91160610800

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Dual crankshaft and camshaft position sensor for electronic fuel injection upgrade. Porsche 911 1974 to 1983
Dual sensor kit with pulley is the complete engine position monitoring kit

Fits:
Porsche 911 / 911S - 1974 to 1977
Porsche 911 3.0ltr Carrera - 1976 to 1977
Porsche 911 SC - 1978 to 1983
Porsche 911 turbo - 1975 to 1989
For cars with CIS / K-Jetronic fuel injection

The dual sensor unit, no pulley is for people who might be upgrading from another crank sensor kit, and have a trigger installed. So long as the trigger wheel diameter is between 127mm and 132mm in diameter, then our kit can most likely be used with the existing trigger wheel.

Dual sensor 
Trigger every 720 degrees (compression stroke)
36 tooth trigger wheel

Dual sensor – This unit has the same sensor as the in the body as the single sensor, but a second sensor that points at the trigger disc mounted to the Adapt Motorsport crank pulley. As standard, this is a 36-1 pulley, meaning that it has 36 teeth, minus 1 missing tooth. This allows the ECU to know what the crankshaft position is at all times and in combination with the internal sensor, whether it is on the compression or exhaust stroke in its 720 degree cycle. This system provides a complete engine position sensing kit. If you have an existing 36t trigger disc, it is possible to use our sensor kit on this, provided that the teeth are designed for a hall sensor, and not a magnetic sensor, and the outside diameter of the teeth is between 127 and 

130mm. Please contact us for clarification

Why do you need this system and what are crankshaft/camshaft position sensors? 

When converting classic Porsches to modern electronic fuel injection, the engine control unit (ECU) needs to know exactly where the crankshaft and camshafts are in there 4 stroke cycle and how fast they are spinning.  This allows the ECU to correctly time each spark and fuel injector opening time and duration.  The first sensor is pointed at the crankshaft pulley and measures a pulse for every tooth.  There is one missing tooth and from this the ECU can work out what the crankshaft position is relative to this missing tooth.  The time between pulses gives the engine speed and rate of change.  

But there is a problem, the engine spins two complete revolutions to complete its 4 stroke cycle.  So whilst with this one sensor, the ECU knows where it is relative to top dead centre (TDC), it does not know if it is on the compression or exhaust stroke.  This is where the second reference sensor comes in.  This sensor is installed in the body our module, and measures a single tooth.  As this is installed in the distributor hole, this is geared to run at half engine speed, so will produce a pulse once every 720 degrees.  With these two sensors, the ECU knows the exact position the engine is in its 4 stroke cycle.  And now, we can run accurate sequential injection and ignition.

Our kit uses high speed digital hall effect sensors for a digital output to the engine control unit, these are best run at 8V, most modern ECU's have an 8V output dedicated for crankshaft sensors.

Machined aluminium housing and anodised finish, complete with maintenance free bronze bush and sealed for life roller bearing.  These sensors are quite adjustable so are often able to be used with existing crank pully and trigger wheel setups from other quality vendors.

Sync 2 Kit Includes:
Main body assembly
ZF Hall effect sensors x 2
Wiring and connectors, with pins and connectors for connecting to your wiring loom.

For use with other crank trigger systems.
(We can not guarantee that that this system will fit every crank/trigger system, however it can be easily modified to suit most systems)

This replacement kit fits to the OEM distributor location using your own factory distributor gear. Simply remove the factory distributor gear from your install the gear, wire to your ECU, fine tune the sensor air gap to the crank trigger disc, setup the reference position in the ECU and you have all the sensing you need for the latest sequential fuel and ignition systems.  This kit works on the 2.7lre, 3.0ltr and with the turbo distributor gears.

Please Note
2.7 engines may need to trim some of the crank case near the crank pulley to prevent interference.

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93060250052

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Impulse / speed reference sensor.  Please note there are 2 per car (Price is Each)



Fits:
Porsche 911 1984-89

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91160621502

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Impulse / speed reference sensor.  Please note there are 2 per car (Price is Each)



Fits:
Porsche 911 1984-89

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91160621502

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Impulse / speed reference sensor.



Fits:
Porsche 928
Porsche 924S
Porsche 944
Porsche 968

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94460611500

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Single camshaft position sensor for sequential ignition / injection upgrade. 
The single sensor unit is for cars that already have a separate crankshaft sensor, either on the flywheel, or an existing crank pulley sensor



Fits:
Porsche 911 2.7 - 1974 to 1978 (CIS injection)
Porsche 911 SC 3.0ltr - 1978 to 1983
Porsche 911 3.2 Carrera - 1984 to 1989


Single sensor – This unit has a singe sensor inside the body that detects one single tooth. This shaft rotates at half engine speed, so this sensor picks up once every 720 degrees. This is used to tell the ECU when it is on the compression stroke. The single sensor version needs to be used in conjunction with an existing crank position sensor, either on the pulley, or on the flywheel as common on the 964/993 or cars that have had their flywheel machined for a sensor pickup

Why do you need this system and what is a crankshaft position sensor? 

When converting classic Porsches to modern electronic fuel injection, the engine control unit (ECU) needs to know exactly where the crankshaft and camshaft is in its 4 stroke cycle and how fast they are spinning.  This allows the ECU to correctly time each spark and fuel injector opening time and duration. A sensor is pointed at the crankshaft pulley or flywheel and measures a pulse for every tooth.  There is one missing tooth and from this the ECU can work out what the crankshaft position is relative to this missing tooth. The time between pulses gives the engine speed and rate of change.  

The 3.2 Carrera / 964 / 993 already have a sensor on the flywheel to measure crankshaft position so these engines only require one senor for camshaft positioning. This sensor is installed in the body our module, and measures a single tooth at the top of the drive shaft.  As this is installed in the distributor hole, this is geared to run at half engine speed, so will produce a pulse once every 720 degrees.  With these two sensors, the ECU knows the exact position the engine is in its 4 stroke cycle.  And now, we can run accurate sequential injection and ignition.

Our kit uses high speed digital hall effect sensors for a digital output to the engine control unit, these are best run at 8V, most modern ECU's have an 8V output dedicated for crankshaft sensors.

Machined aluminium housing and anodised finish, complete with maintenance free bronze bush and sealed for life roller bearing.  These sensors are quite adjustable so are often able to be used with existing crank pully and trigger wheel setups from other quality vendors.

Sync 1 Sensor Kit Includes:

• Main body assembly
• ZF Hall effect sensors, single tooth for engine cycle sensing x 1
• Wiring and connectors, with pins and connectors for connecting to your wiring loom.

For use when you already have some other crankshaft position sensing either on the flywheel or pulley and just need to add an engine cycle/sync sensor to complete your sequential system.

This replacement kit fits to the OEM distributor location using your own factory distributor gear. Simply remove the factory distributor gear from your install the gear, wire to your ECU, fine tune the sensor air gap to the crank trigger disc, setup the reference position in the ECU and you have all the sensing you need for the latest sequential fuel and ignition systems.  This kit works on the  964, 993 and with the turbo distributor gears.

Speed sensor on the gearbox.



Fits:
Porsche 911 1974-84 (incl. Turbo)

only fits up to 1974-1984
For cars Porsche 911 1985-86 3.2L and Porsche 911 Turbo 1985-88 use 91160620901

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91160620900

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Speed sensor on the gearbox.



Fits:
Porsche 911 1974-84 (incl. Turbo)

only fits up to 1974-1984
For cars Porsche 911 1985-86 3.2L and Porsche 911 Turbo 1985-88 use 91160620901

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91160620900

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Speed Sensor on the gearbox



Fits:
Porsche 911 1985-86 3.2L
Porsche 911 Turbo 1985-88

915 Gearbox type

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91160620901

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Speed sensor on the gearbox



Fits:
Porsche 911 1987-89 3.2ltr
Porsche 911 Turbo 1989

G50 Gearbox type

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91160691001

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