Acceleration Faltering, Details 2nd page Options

[Tigawoods]

lets cut to the chase.

-car ran fine after cam install

-small valve tap

-after 2 weeks small knocking noise that seems to be coming from below the cam gear and only sounds when its around 1000rpm

-had an exhaust problem - detached the midpipe to run open downpipe until i got it fixed

-car ran super lean at low rpms under a fair load and sputtered as if its grasping to find power. sputters from stop to go at low rpms and drops super lean

-new mid pipe welded on

-car still sputters from stop to go at low rpms but now it gets a bit rich or just sputters with an even 14.X A/F r

- AND at 4900rpm under 100% throttle the car falls on its face and looses power. if anything under 100% throttle there is no problem.



i have a race this sat. and sun. i really need to figure out if this is a tune problem or an internal problem.
any insight at all will be helpful! thanks!

This post has been edited by Tigawoods: Jan 23, 2011 - 11:58 AM

[Tigawoods]

well here is what i did.
i got a similar thread and size bolt from toyota from there bolt bucket (lol)
the stock bolt on the tensioner pulley only uses 50% of the the hole given
the bottom half of the hole had good threads on it so that holds great

the belt btwn the idler and oil pump has tension now

timed it and started it.
rich with the AFR at 10.
corrected the SAFC to -20 at idle which brought the AFR to 12.5 at start and when somewhat warm 13.5

checked the timing and the notch is showing up 1/8th of an inch past the 0 mark.
would that be cause for concern?
the car idles a tiny bit rough

what should i do now