911 CDI+ (6 Pin)Categories: CDI+ Ignition
The Classic Retrofit CDI+ unit requires no modifications to the original wiring loom harness or metalwork and is 'plug and play'. Our custom aluminium casing sits perfectly in your engine bay for a very attractive appearance. All Porsche 911 CDI+ units have a 48 MHz microprocessor onboard to control ignition timing. Our electronics module can also be retrofitted into an original case by special request.
Lightly restored owner's original casing:
State-of-the-art electronics inside:
Original CDI is now an old and unreliable electronic system which does not age particularly well:
Two six-pin boxes in CNC cases on a twin-plug 911:
The CDI+ 6 Pin unit is our direct replacement for Bosch CDI boxes fitted to classic Porsche 911 SC models from 1978 to 1983 on the SC and 930/911 Turbo to 1989. Extensive development and rigorous dyno testing has proven our CDI+ unit to be a major improvement over the original Bosch CDI unit, with improved torque right across the rev range.
We have now supplied several hundred CDI+ units to very happy customers all over the world. We support our units with a lifetime warranty: subject to zero electrical abuse! Check out the online Porsche communities for the many great reviews of our products - they are far superior to the cheaply made, unreliable alternative technology available elsewhere.
CDI ignition was originally fitted to a great many European sports cars of the 1970s and 1980s, including Maserati Ghibli, Alfa Romeo Montreal and are popular with BMW 3.0 CSL racers. Our CDI+ is a great upgrade for all of these applications.
- Classic Retrofit CDI+ Manual 3.6.pdf (PDF - 7785.5 KB)
- Classic Retrofit CDI+ Test Results.pdf (PDF - 1154 KB)
The road unit is a plug and play replacement for the Original Bosch CDI. It is pre-set at the factory (to your specification) and has the following features:
- Hard RPM limiter
- Soft RPM limiter
- Launch RPM limiter
- Adaptive multi spark at low RPM
- Dual spark at high RPM
- Shift Light output
- Clutch pedal input
- Tacho calibration
The following parameters can be adjusted using the hidden 'jog wheel'.
- Hard RPM limiter.
- Soft RPM limiter.
- Shift light RPM.
- Tacho calibration.
The unit comes with a laptop cable which allows adjustment of the following:
- Ignition advance curve.
- Soft limiter retard.
- Hard limiter cut scheme.
- Max RPM tell tale
- Engine run time
- MFI fuel pump cutoff RPM min/max.
- Multi spark interval.
- Launch control RPM limit.
- Firmware updates
The unit works with the existing distributor without modification and can use the weights and springs for the advance curve. It can also be programmed with a custom ignition timing 'map' by connecting a laptop (cable supplied). The ignition map can either work with a locked distributor or by 'overlaying' advance on top of the standard distributor mechanical advance.
The race unit has the same features as the standard unit but incorporates a waterproof programming cable that can be mounted in the car. This allows easier access for frequent tuning/adjustment