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Porsche // 914 (1970-1976) // Any
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- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
Performance Upgrade Chip – Non-Varioram Cars
Unlock the true performance of your 1994-1995 Porsche 993
Non-Varioram with the OE Match Performance Upgrade Chip. Developed
specifically for manual and Tiptronic (non-Driveblock) models, this
precision calibration transforms the drivability of the legendary 3.6-litre
flat-six, delivering stronger low and mid-range torque, sharper throttle
response and improved acceleration throughout the rev range.
Fits:
- Porsche 993 (911) C2 1994-95
- Porsche 993 (911) C4 1994-95
Compatible with Bosch Motronic DME 0.261.203.675 and
the following Porsche DME part numbers:
- 99361812403
- 99361812404
- 99361812405
- 99361812406
Transform the Way Your 993 Drives
The factory Bosch Motronic calibration leaves noticeable performance untapped. OE Match software has been extensively developed to eliminate the familiar flat spot below 4,000 rpm, allowing the engine to pull harder from low RPM while significantly improving throttle response and everyday drivability.
Benefits include:
- Stronger low and mid-range torque
- Sharper throttle response
- Eliminates the factory sub-4,000 rpm hesitation
- Improved acceleration throughout the rev range
- Dyno-proven horsepower gains
- Smoother, more responsive driving experience
Every calibration is designed for 91 AKI (95 RON) premium fuel as standard. If you regularly use 93 AKI (98 RON) fuel, an optimised 98 RON calibration can be supplied—simply select your preferred fuel grade when ordering.
Includes the Latest Lightweight Flywheel (LWF) Fix
If your 993 has been fitted with an RS lightweight flywheel, this software includes the latest LWF Fix to eliminate the stalling and RPM dip often associated with lightweight flywheel conversions.
The updated programming:
Eliminates stalling during deceleration and gear changes Prevents RPM dropping below idle Improves clutch engagement Reduces unnecessary clutch slip Enhances throttle response
The software is equally suitable for vehicles retaining the factory flywheel, and existing customers can update older OE Match chips to the latest LWF coding.
Optional Immobiliser / Driveblock Delete
This chip can also be supplied with the Immobiliser / Driveblock function disabled for vehicles originally equipped with the Porsche Driveblock system.
Disabling the Driveblock removes the need to deactivate the immobiliser with the key fob every time the vehicle is started, returning the car to the operating style of factory non-Driveblock models.
To complete the conversion, jumper relay 964.610.184.00 must be installed in relay position R61, exactly as fitted by Porsche on non-Driveblock vehicles.
Ordering Information
Porsche fitted six different Bosch Motronic DMEs to 1994-1995 Non-Varioram 993 models.
Before ordering, remove the DME unit from beneath the left-hand front seat and confirm the Bosch or Porsche part number printed on the Motronic label to ensure the correct chip is supplied.
Why Choose OE Match?
Unlike generic replacement chips, every OE Match calibration has been extensively refined through dyno development and real-world testing to provide maximum performance while maintaining factory reliability.
The software is engineered not to trigger the Check Engine Light
Benefits
- Increased horsepower and torque
- Sharper throttle response
- Eliminates the factory sub-4,000 rpm lag
- Improved low and mid-range acceleration
- Eliminates lightweight flywheel stalling
- Optional Driveblock removal Improved everyday drivability
Porsche 993 Non-Varioram Performance Chips & Bosch Motronic ECU Upgrades
OE Match Performance Chips are specifically developed for 1994-1995 Porsche 993 Non-Varioram models, optimising the Bosch Motronic ECU to deliver stronger torque, improved throttle response and increased horsepower while maintaining factory reliability.
Design911 supplies model-specific calibrations for manual and Tiptronic cars, with support for lightweight flywheel conversions, premium fuel calibrations and optional Driveblock removal. Every chip is matched to the correct Bosch DME to ensure perfect compatibility and maximum performance.
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
Includes all connector boots, PVC sheathing, high grade automotive wire, flat braided ground cable and contacts per the original specifications. Compatible with cars up to 1973.
Fits:
Porsche 911 1965-73
Porsche 914/6 1971-75
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161205000
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 914 (1970-1976)
Premium version
(Bosch reference 227-200-001)
New Perma Tune Gen 6
Fits:
Porsche 911 1965-77
Porsche 914/6
Disclaimer: Before fitting this CDI unit please make sure the new PERMA TUNE coil is being fitted with it. Do not try to start the car with Blue Bosch coil made in Brazil. This will damage the Perma-Tune CDI box and void the warranty. If CDI unit was not purchased with the PERMA TUNE coil the warranty will not be respected. Fitting with other brand coils at your own risk.
The Gen 6 Premium Perma-Tune CDI module makes diagnostics easier by providing onboard diagnostics that are automatically displayed by two coloured LED function lights.
These LED lights assist in diagnosing both the ignition module and the car. The green LED is a status indicator that can flash diagnostic fault codes. The red LED is a strobe light that flashes each time the coils fires in the same manner as a timing light which is especially useful for detecting engine misfire.
The LED function lights are mounted in the harness electrical connector and can only be seen with a mirror while the module is powered up.
As an additional feature of the Perma-Tune Premium module, there are three self-resetting overload protectors that protect your Perma-Tune and your car from overload damage. The overload protectors are hidden underneath the ignition module so they do not spoil the original look of the part.
The Premium ignition module features a die cast housing that has been treated to mimic the patina of the original aluminum die cast distributor and has a range of digital features that the Basic module does not have. The Premium module provides full control over RPM limit, mechanical advance timing, power output, multi spark function and has many other features that can be programmed using a computer, tablet or smart phone. The 911906 comes preprogrammed for the Porsche 911 so programming changes are optional. The programmable mechanical advance feature is very handy for restoring a distributor advance curve that has been distorted by worn mechanical parts without having to replace the weights and springs. Scroll down for more complete information about your programming options.
DISTRIBUTOR TRIGGER SIGNAL
The second most common cause of SC engine ignition failure is the ignition trigger circuit.
Since the ignition box is controlled by the magnetic pulse generator located inside the distributor, any disruption in the triggering signal will cause the ignition box to malfunction. Be aware that the connectors can push back in the housing. Pull the rubber boot back to inspect the connection between the box and harness.
Full disassembly and inspection of the distributor is highly recommended due to the intermittent nature of triggering problems. Pay special attention to the distributor trigger shielded cable ( green wire ), magnetic pulse generator magnet and magnetic pulse generator winding connection as these parts are known to fail in combination. An especially common problem is a broken magnet pole. Evidence of arching between the magnetic pulse generator magnet points indicates a defective rotor. In this case replace the rotor, magnetic pulse winding, green wire and ignition box. The Perma-Tune high performance triggering is so accurate that worn out distributor shaft bearings can be detected by the tachometer. This is indicated by the tachometer needle slightly bouncing at idle. Trigger signal problems can cause double triggering which results in a weak ignition spark. Due to the lower triggering resolution of the stock ignition box, some symptoms of trigger signal problems can be more evident after the Perma-Tune is installed. Refer to the vehicle maintenance manual for triggering signal wave form specifications and distributor repair instructions.
To quickly test the triggering circuit without the use of an oscilloscope: Unplug the harness connector from the ignition box. Refer to the 911SC Installation Instructions diagram, connect an Ohm meter between pins 3 and 6 of the harness connector. To prevent the possibility of misdiagnosis, tug on the green triggering signal wire located at the base of the distributor while viewing the meter. The published specification for the magnetic pulse generator is 600 Ohms +- 100. Our experience has shown that a variation of +- 25 Ohm indicates a need to repair defective connections or to replace the magnetic pulse generator windings.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160270700
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 914 (1970-1976)
Basic version
(Bosch reference 227-200-001)
Disclaimer: Before fitting this CDI unit please make sure the new PERMA-TUNE coil is being fitted with it. Do not try to start the car with Blue Bosch coil made in Brazil. This will damage the Perma-Tune CDI box and void the warranty. If CDI unit was not purchased with the PERMA-TUNE coil the warranty will not be respected. Fitting with other brand coils at your own risk.
Perma-Tune Gen 6
Fits:
Porsche 911 1965-77
Porsche 914/6
Take your pick: Basic or Premium
The Gen 6 Perma-Tune comes in two models: the Model Premium ignition module and the Basic ignition module.
The Basic model is just that, basic: it performs only the same functions as the analog modules did back in the day. For the average street car, this may be all that is desired and of course is more affordable than the Premium model.
It is however still a high performance part and is perfect for racing venues that do not allow programmable digital ignition systems. The Basic model has a smooth, more original looking housing than the Gen 5 cast housing.
DISTRIBUTOR TRIGGER SIGNAL
The second most common cause of SC engine ignition failure is the ignition trigger circuit.
Since the ignition box is controlled by the magnetic pulse generator located inside the distributor, any disruption in the triggering signal will cause the ignition box to malfunction. Be aware that the connectors can push back in the housing. Pull the rubber boot back to inspect the connection between the box and harness.
Full disassembly and inspection of the distributor is highly recommended due to the intermittent nature of triggering problems. Pay special attention to the distributor trigger shielded cable ( green wire ), magnetic pulse generator magnet and magnetic pulse generator winding connection as these parts are known to fail in combination. An especially common problem is a broken magnet pole. Evidence of arching between the magnetic pulse generator magnet points indicates a defective rotor. In this case replace the rotor, magnetic pulse winding, green wire and ignition box. The Perma-Tune high performance triggering is so accurate that worn out distributor shaft bearings can be detected by the tachometer. This is indicated by the tachometer needle slightly bouncing at idle. Trigger signal problems can cause double triggering which results in a weak ignition spark. Due to the lower triggering resolution of the stock ignition box, some symptoms of trigger signal problems can be more evident after the Perma-Tune is installed. Refer to the vehicle maintenance manual for triggering signal wave form specifications and distributor repair instructions.
To quickly test the triggering circuit without the use of an oscilloscope: Unplug the harness connector from the ignition box. Refer to the 911SC Installation Instructions diagram, connect an Ohm meter between pins 3 and 6 of the harness connector. To prevent the possibility of misdiagnosis, tug on the green triggering signal wire located at the base of the distributor while viewing the meter. The published specification for the magnetic pulse generator is 600 Ohms +- 100. Our experience has shown that a variation of +- 25 Ohm indicates a need to repair defective connections or to replace the magnetic pulse generator windings.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160270700
The product you are viewing cross references to these numbers
- Porsche 914 (1970-1976)
Disclaimer: Before fitting this CDI unit please make sure the new PERMA-TUNE coil is being fitted with it. Do not try to start the car with Blue Bosch coil made in Brazil. This will damage the Perma-Tune CDI box and void the warranty. If CDI unit was not purchased with the PERMA-TUNE coil the warranty will not be respected. Fitting with other brand coils at your own risk.
This Model range is the first of the Gen 6 product line from Perma-Tune.
We have combined our accumulated knowledge of Porsche ignition over the last 48 years and applied it to the very latest electronics technology to produce a state of the art electronic ignition module
that is period correct looking. Made to look like an old school electrical relay, it blends right into the engine bay of the 914/6
NO CRIMPS, NO MESS, NO HEADACHES
Plug and play features eliminate the need for wire crimps and complicated wiring diagrams. Wires are cut and stripped, then inserted into the wire bus for a secure, plug in connection
without the need for special tools or wire crimps.
Simple, four wire installation. There is no need to interpret complicated wiring diagrams, the terminals are clearly marked so you know exactly where each wire goes.
NO DIALS, NO SWITCHES, NO PROBLEMS
Installation is easy. There are no dials to turn, no switches to set and no chips to plug in. The 914906 Perma-Tune comes to you pre programmed and ready to be installed on the 914/6.
You can always customise the module later using your wireless device to make secure, reliable configuration changes through the built in Bluetooth connection.
STRONG, YET FORGIVING
The Perma-Tune ignition module features on board diagnostics to help you install the module. The built in strobe light can help you check your ignition timing.
It also has self resetting overload protection so there are no fuses to replace.
SMART CONNECTIONS
Use any kind of distributor you have. The Points distributor connection will work with breaker points or any aftermarket distributor.
The tachometer output connection is universal and will work with the stock tachometer or aftermarket electronic tachometer, shift light and RPM switch.
Power connects to 12 Volt system
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
914906
The product you are viewing cross references to these numbers