PORSCHE 911 IGNITION TUNE UP KIT:
( For Bosch Type Distributors)
- Models:
- 1973 911T w/ 2.4L Engine from 06/73 production w/ CIS Injection
- 1974 to 1977 w/ 2.7L Engine CIS Injection
- Ignition System;
- CDS- Capacitive discharge system
- Distributor Type:
- BOSCH
- KIT CONTENTS:
- All the components included on the kit are from high quality OEM Suppliers made in Germany as
Bosch, Beru and Bremi, they provide the best performance and reliability for your car.
- (1) Distributor Cap Porsche Part# 901 602 933 00
- (1) Distributor Rotor Porsche Part# 911 602 928 00
- (1) Ignition Point Set Porsche part# 901 602 936 00
- (6) Bosch Spark Plugs WR5DC Super Plus
- You also receive FREE OF CHARGE a "spark plug gap tool" and a tube of "synthetic dieletric grease
to be apply on the spark plug wire boot.
- TECHNICAL INFO: (Helpful information tips and factory specs recommendations)
- Firing order: 1-6-2-4-3-5
- Cylinder number from rear of the car: 1-2-3 left bank and 4-5-6 right bank
- Distributor Points Gap: 0.012 in (0.3 mm)
- Dwell angle : 38 +/- 3 degrees
- Dynamic Ignition timing: 35 degrees BTDC at 6000RPM ( with vacuum line disconnected where applicable)
- Spark Plug Gap: 0.028 in / 0.60mm ( factory spec)
NOTE : Several factors may be taken in consideration to optimize the performance of the ignition
system on your Porsche regarding the spark plug gapping , today's fuel octane and density
specs with addition of Alcohol is one of them ,in general the gaps can be adjusted between
.024" to .030",if you have a aftermarket ignition system installed such as MSD you may
increase the gap in order to obtain a larger spark.
- A few technical notes :
REV-LIMITING ROTOR: The early Porsches 911 utilizing a mechanical device incorporated
on the distributor rotor which function as a rev limiter , the calibrated sliding device
installed on the center top section of the rotor is held in position by a spring action , as the
RPM increases the device slides by a centrifugal force , as the engine reaches the rev limit
RPM the device touches a metal tab on the rotor and grounds the system causes the ignition
to misfire , the 911T models the device is calibrated at 6500 RPM as included on the tune
up kit, other models such as 911E . 911S and early models with conventional ignition system
( non CDI) have different calibration set ups, we also carry kits for other applications.
CIS Injection: The Bosch K-Jetronic CIS (Constant Injection System) was introduced in 1973 on late
911T models and equipped Porsche 911 models up to 1983,early 73 models utilize the Bosch
Fuel Injection MFI(Mechanical Fuel Injection )distinctly recognizable by the centered located
mechanical fuel injection pump similar to Mercedes Pagodas , please verify your application.
Please check our other listings for individual ignition parts ,spark plug wiring
sets and hardware.
Thank you. We appreciate your business