xfi 292
yes your tune need to be right...but if Jesus came to your door to tune it and the motor had issues....he would not be able to get it right. you need to address the mechanical issues first than have the tune looked in to.
as noted that cam is not ideal and when set up correctly requires high (7k) RPMs to see max potential.
another cam choice with correct springs set up properly AND a good tune wiould be the best situation.
as mentioned keeping what you have will also work...just need to get valve train up to it and the tune if that in fact needs attention.
as noted that cam is not ideal and when set up correctly requires high (7k) RPMs to see max potential.
another cam choice with correct springs set up properly AND a good tune wiould be the best situation.
as mentioned keeping what you have will also work...just need to get valve train up to it and the tune if that in fact needs attention.
Jesus would say "Thou shalt get an LSx engine and sin no more".
It appears to me to have a slightly narrow torque curve probably due to being clipped up top. Also it looks like the dyno operator got off the gas right at 6K RPM and its hard to really tell if there is a float problem. One thing is certain, something is bad wrong here for a 242/248 cam to peak at 6K RPM as shown on the graph.
Last edited by wrd1972; Apr 28, 2010 at 09:37 AM.
i am running an off the shelf comp "old school" cam that is smaller than this one.... it puts down around 425rwhp thru a th400/9"rear/28" slicks and peaks 6500ish.
350cid with ported factory heads and single plane.
350cid with ported factory heads and single plane.
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He has Tunercat on the way and I doubt anyone can develop a tune as far off as his dyno pull shows.
When the AFR is that low I don't see how you can tell anything about the setup. The chart shows the motor was extremely lean, and I am amazed it made any power.
When the AFR is in range the motor will be totally different. Not ideal but he will be respectable and he then can decide where he is willing to take the setup.
When the AFR is that low I don't see how you can tell anything about the setup. The chart shows the motor was extremely lean, and I am amazed it made any power.
When the AFR is in range the motor will be totally different. Not ideal but he will be respectable and he then can decide where he is willing to take the setup.
