Quote: Originally Posted by
hyypro 
First thing would be the boost leak. ANY boost leak will affect performance at least a little. The second would be your tune. With this car timing plays a big role. Also, I wouldn't recommend boosting 22 psi unless you have water/methanol injection. Lastly would be your driving skills. Have you tried shifting at different RPMs and whatnot? Hope this helps

I understand that about the boost leak, I'm going to have to replace that coupler. Most of the time 22psi had a gallon of 110 mixed in with it. Maybe I just need to adjust my tune. I guess I'll retune for pump gas on 20 psi and adjust the timing some. If I get to a point where I need to choose between timing or a leaner afr which should I go with? Shouldn't my afr be around 11.5?
Also though what I don't understand is my buddies that are trapping higher are spiking 22 to 23 psi with no adjustments to timing on 93 octane and are barely getting any knock (1-2 counts). Why would their car be so different than mine?
And yes I've tried shifting at different times lol and even drag radials. I just spun through first on the radials, shifted at 5500 then at 5800 out of 2nd. Could be my tracks mph calculation is off though, it always seems like I'm going 85 when I cross the line but I never register that fast.