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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.
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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