Engine Modifications & Upgrades

Our newly released fuel pressure regulator brackets mount to the Adapt Motorsport fuel pressure regulators to the engine breather cover bolts on top of the classic aircooled engines.  
The same as Porsche do for the 964.  

Manufactured from CNC machine aluminium and anodised in a dark silver colour, they really add a nice look to any classic Porsche engine bay.

Please Note
Only the regulator brackets and fasteners are included in the kit, the regulator is shown for reference purposes only and not included.  

We have a range of different regulators that can be ordered.

Oil backflow prevention kit. 

Sold as a complete kit. 1 necessary per car.

This oil backflow kit incorporates a check valve between the oil tank and engine which prevents smoking on start up for 911 and 930 models from 1973-89.

The issue is due to the oil tank sitting higher than the engine oil pump. Gravity creates a positive pressure on the pump and slowly fills the engine case with time. Once the car is started, the cars smokes heavily

Our complete kit includes a model specific check valve with upgraded suction hoses and stainless-steel clamps ready for installation.

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.

Our Valve Springs are designed and manufactured to specifically fit the envelope of a Porsche application not a spring from another use. 

It operates a higher natural frequency than the original spring for racing and at the very least minimizes damage from over rev in track day situations. 

Please note
993 - must use 8mm Ti retainers and Aasco Seats

9mm Porsche 911 titanium valve spring retainers for 9mm valves. 

Can be used to directly replace OE retainers but we recommend using in conjunction with Aasco HP109  valve springs and HPSS spring seats.

Set of 12

Our Valve Springs are designed and manufactured to specifically fit the envelope of a Porsche application not a spring from another use. 

It operates a higher natural frequency than the original spring for racing and at the very least minimizes damage from over rev in track day situations. 

Please note
993 - must use 8mm Ti retainers and Aasco Seats