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jcc911 jcc911 is offline
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Join Date: Jan 2004
Location: Milwaukee, WI
Posts: 3,202
Thanks Pat.
OK Took the car for a beat run to check the AFRs and here is what I found.
First note was when I pulled the 02 bung plug, the face of it was black, am I too rich, I wondered?

I have set the timing to 28 advance at 4500 with the vac line off. (as suggested by Aaron at RW).

Vac Advance Disconnected
Idle was ~1100 12.0
Fourth gear cruising 2600 13.7
5th Gear 2200 13.7
Pedal to the floor, AFRs slowly drop till boost
WOT 10.0-10.6 on boost

Advance Connected
RPMs immediately increased, so I turned down the idle.
Idle ~1050 11.5
4th gear 2600 13.6
3rd gear 3200 14.0
WOT in boost drops to 10.0-10.6

I did not notice any significant difference with the line connected or not. Boost is still late.
AFRs never went past 15, unless I would accelerate then quickly push in the clucth then would briefly see 15.2-15.7.

No idea why the boost doesnt seem to come on til well past 3000.

Will update when the gauge is in.
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Jeremy C.
Why's he calling me meat? I'm the one driving a Porsche. (Bull Durham)
----Nothing is far away in this car!----
-1978 911 SC TURBO, Minerva Blue Targa 965 update.
-2008 550i M-Sport
Old 09-05-2011, 07:18 AM
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