I have got to figure out why I'm getting 9 degrees of retard all the way down the track. I do have an exhaust leak, but would that cause 2-3 degrees retard at idle and if cruising at 65 mph and I put it half way to the floor I see as much as 11 degrees of retard. If I'm cruising at any speed and I let off the gas the retard will go 0.0.
I'm really at a loss here. The exhaust leak is on the SLP y-pipe. Its as if I'm running on 7 cylinders. I don't see the car hitching like a bad wire. Its just retarding so bad the car just won't get out of its own way at WOT. Anyone got ideas for me to check or look at.
Fred

------------------
1994 Z28, A4,
BEST 1/4 12.413@109.55
BEST 1/4 MPH 110.49
BEST 60' 1.668
BEST 1/8 7.884@86.35
BEST 1/8 mph 86.77
Race Weight 3600lbs
No new times with P&P heads Flow 239.4 INT 182.1 @525 lift, or
24lb SVO inj's...

 

I know you may consider this a bandaid but I would put a reisitor in place of a knock sensor and see what that does. Just my .02 Later Clint

------------------
1995 T/A RamAir,17x9 WS6 polished rims,A4 fresh, 3:23's,LT4 Hotcam kit, Ported heads and intake, built 355 with forged pistons, LT4KM,NX N20 kit 125-175hp, Custom programming, AS&M headers, Vigilante 2800,
flowmaster catback, Fernco intake bellow,CSI w/p,MSD 6al. New Et 12.50@107 N/A no nitrous times yet.

 

Spray some carb cleaner on the exhaust leak to see if the knock goes away (on a fairly cold engine but out of open loop of course). If its not that then it could be just a bad knock sensor.

Hal