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You didn't do any head work, no intake work, no exhaust work, no cam, what were you expecting? You're right where you should be. If you want to see 500 hp, everything I listed above needs to be changed.
Thanks for your response and I couldn't agree with you more I am attaching my graph ... there is an unusual or not so unusual drop off like a cliff drop at the 5500rpm mark that's what has me wondering
Thats just where the dyno operator cut the throttle (stopped the test).
Will
Ok ... I thought it may have been a sign of weak valve springs floating...or choking at the exhaust side...In your opinion does the graph look healthy?
You didn't do any head work, no intake work, no exhaust work, no cam, what were you expecting? You're right where you should be. If you want to see 500 hp, everything I listed above needs to be changed.
Thanks Daniel...I am going to add a supercharger to this application first and see what comes of it...My concerned was that the dyno graph showed a sharp drop at the 5500rpm mark....I am not used to reading dynos and needed some opinion on the graph...
The power curves on the graph look fine. I don't see anything to indicate a mechanical problem.
Dyno operators typically stop the pull shortly after peak power happens as there is no reason to keep turning a motor to the moon when it's not making any additional power....
Your tune looks like it could use a little work.... just judging from the fuel curve thats shown on the dyno sheet. Would probally pick up some power between 4500 and 5000 if you managed to get that rich dip out of it....
Will