Thread: knock sensor
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John at J&S John at J&S is offline
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Join Date: Dec 2005
Posts: 147

I don't know Porsches. How similar are the cam chains on a 911?

The 911 was our first test car in a magazine, must have been early '91. I rode along with an oscilloscope on my lap, since I had heard stories about how noisy these engines were. Not true at all. I was surprised at how quiet the engine was.

The owner was an engineer at CalComp, who had reverse engineered the Motronic chip. He had a version he used on the weekends with more timing and less fuel, and that's what we ran when we tested the unit. Can't remember his name, maybe I can get hold of James Sly. He probably knows. I think the guy that installed it was Greg Brown, a Porsche mechanic here in Orange County.

Old 04-30-2008, 04:57 PM
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