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boyt911sc boyt911sc is online now
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Join Date: Mar 2002
Location: Philadelphia, PA
Posts: 12,682
Garage
CIS components compatibility...........

Quote:
Originally Posted by Silver-911 View Post
I will post some photos tomorrow when I have some good lighting. Anything in particular I should get closeups of?

The mechanic the car was last at is a Porsche specific specialist that has been working on these cars since 1979. They build race cars and do full restorations. Including a 906. I'm surprised he didn't get into the system not being compatible. Unless he assumed the components were correct for the 1980 930/07 engine and didn't run the numbers...

Silver,

Please take some close up pictures of the following:
  • Ignition distributor showing the Bosch ID #.
  • Fuel distributor showing the ID #.
  • Warm-up Regulator.
  • Intake runners showing the -2R or -4R.
  • Backside of the throttle body.
  • Air flow metering unit with ID #.
  • Auxiliary Air Regulator on Intake runner #5.
  • Engine block showing the engine type.

These informations would be more than sufficient to identify the problem about your engine. Based from your initial feedback, I would say you would need to replace the fuel distributor and warm-up regulator. FD-077 and WUR-072 to replace FD-031 and WUR-089. Keep us posted.

Tony
Old 03-14-2021, 06:17 AM
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