fixed my boost leak now im knocking
 

ok, so just yesterday i fixed my boost leak. it was coming massivley from the upper ic pipe. it was corroded and stuff. i done fixing that.

so i did a log on 3rd gear and when i hit around 5900 and up my car will knock to around 25 until redline. it only does this on 3rd gear, and not on 1st or 2nd. i still have a little bit of leak coming from the intake mani( i am about 80% sure thats its from the injector rings.). i dont know if any of those leak have anything to do with it.

heres my mod so far
mbc at 15-16 psi
running open downpipe
ported 2g exh mani

any idea why its knocking? i cant figure it out. my 3rd gear feels like im just standing still.

Re: fixed my boost leak now im knocking
 

Stock ECU? Check the plugs if you don't have any kind of A/F gauge. You might be running a bit lean on the top end for some reason. Your flat 3rd gear is from the ECU pulling timing.