jpwalt1987
Well-Known Member
- Joined
- Nov 9, 2003
- Messages
- 1,885
I'm still working on this local guys car trying to get the tune right. I can't get this thing to stop knocking at 15psi on 93 octane. I have switched O2 sensors on the AEM wide band with another known good one. I have leaned it out to 11.2-11.5 from 10.8 thinking it could have rich knock. No luck. Timing has been between 16 and 19. I remember when I was checking the compression on this car it was right at 180-185psi That's with the throttle locked open and cranking it about 5-6 times. My car is built to the max and I only have about 150 psi cranking compression. The car I'm working on has an unknown history except for what I have done to it. Someone has been into it before because it has rjc head gaskets and studs. It also has really good oil pressure. Too good to be an original untouched bottom end. I am at a loss here. I even turned off the wideband controller to see how it would react. Not much difference. I am baffled on this car. Anyone have some suggestions?
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