Originally Posted by Mike Eng
Pressure test your coolant lines? Sounds like air in the system


Thanks Mike. Will do. Also, I don't remember a jiggle pin in my thermostat. And I read position matters.

I did another tune last night. Car is running great minus one thing. Tip In. The deceleration is so bad when it goes lean, causes your head to move forward for that split second. Not smooth.

I have played with increasing tip in. Makes it worse.
Tried stock. better but still bad enough to accelerating annoying. 0 across the board, almost as bad. Nothing I do seems to solve the tip in! (WB hits 17 to ---) for that split second.

I'm going to boost leak test again as my BoostEst and Map are about 5psi off after 6000rpm. But from what I read, lot of variables affect BoostEst so not a real deal breaker if off.


98,6Bolt,3"EXH,LINKV3,780cc,SD,SCM61@26PSI, 340LPH,AFPR,TSBOV,REARWB,FMIC,2"RAD(20/80/WW)