streetknight
DCVING
- Joined
- May 26, 2001
- Messages
- 1,105
Having an odd problem. Car is fine driving around. at WOT the car shifts @ 5100-5200 RPM's on the 1-2 shift and the RPM's drop to about 4400 or so. BUT on the 2-3 shift the RPM's are spiking to 5800-5900. This does it every time, when it occurs the boost is dropping on that shift, the car noses over then picks back up, I'm assuming this is because when the car goes to 5800 it drops to 4300-4400 on the shift and it's lugging. On the data logs then the RPM's shoot up like that I'm the AFR is leaning out and the car is getting knock on the shift.
Car has a PTC 9.5" NL 2800 converter, rest is in sig.
Is this a possible tranny issue or should I look somewhere else. I've already broken a rocker shaft which I suspect is from too many RPM's with the stock valve train.
Any Ideas on what I should check?
TIA
Car has a PTC 9.5" NL 2800 converter, rest is in sig.
Is this a possible tranny issue or should I look somewhere else. I've already broken a rocker shaft which I suspect is from too many RPM's with the stock valve train.
Any Ideas on what I should check?
TIA
