| Flieger |
11-10-2009 12:09 AM |
Quote:
Originally Posted by GrantG
(Post 5002081)
My problem is more serious than the box rattling - there is no box at all;)
My car has no transducer (the whole console is missing and was never on my car - originally a 73.5 911T with CIS). I was told the racecars never had this feature and since my car is mostly a track car that I wouldn't miss it. Most of the time I don't, but I fear that I'm leaving a little power on the table by running the motor rich to avoid backfires (with nice flames out the exhaust if I run it leaner). Is it worth the effort to add the transducer and microswitch? Any potential harm if I lean out the motor (to the proper level) and increase backfires?
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Yes, I had the same problem: no box. I bought an old used unit here on Pelican as a core. I opened it up and repaired it. I had the schematic and I think you could change some components to more modern ones to simplify the box or make a substitute. Rebuilt boxes are available but not cheap. They are hard to find.
The RPM transducer's fuel shutoff effects drivablility greatly. Crisper throttle response, mostly. I detailed my repair of the speed switch in an MFI thread a while back. "MFI Gurus... and friends of Warren" was in the title.
So, I would get the speed switch if I were you.
Hope that helps.:)
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