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Schulisco Schulisco is online now
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Join Date: Mar 2019
Location: Saarland, Germany
Posts: 1,254
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Quote:
Originally Posted by Jonny H View Post
Not quite 100% interchangeable. It depends:

Yes, the 6 pin box will run the early 930 Turbo engine but the tacho will not work. The early Turbo tacho requires a high voltage pulse which the 6 pin box doesn’t provide.

Going the other way, the 8 pin box will run an SC engine too and the SC tacho will ‘work’ with that high voltage pulse from the 8 pin box. Whether there will be long term damage to the SC tacho driving it with the wrong signal - not sure.
I received a confirmation from Permatune, that the GS and 911SC boxes won't differ in the tacho signals. So, beside the breaker points / magnetic pickup, no further differences. You can use the GS box on earlier 911 impact bumper cars originally equipped with the CDI/HKZ.

Thomas
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1981 911 SC Coupé, platinum met. (former tin (zinc) metallic), Bilstein shocks, 915/61,930/16,WebCam20/21, Dansk 92.502SD,123ignition distributor with Permatune box as amplifier,Seine Systems Gate Shift Kit,Momo Prototipo. Want to get in touch with former owners of the car. Last registration in US was in 2013 in Lincolnshire/lL.
Old 02-17-2023, 07:25 AM
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