Re: Fresh gsr making banging noise!!
 

check cam timing and ig timing.

Re: Fresh gsr making banging noise!!
 

cam timing looks good. I just checked and ignition timing is set a 17 degrees

Re: Fresh gsr making banging noise!!
 

er...what ecu are you using then. and when you said you got vtec to work. does the engine make power if u rev pass 3500 to where vtec kick in?

Re: Fresh gsr making banging noise!!
 

we are using a stock p72 and a chipped p72 from intec. Vtec is set at 4400 and you can hear vtec crack at part throttle but when you give it more than about half throttle it cuts out an does not gain any rpms. We disconected the vtec solenoid and still does the same thing except for hearing vtec crack.