Continuing ignition timing debate from the 416 thread.

92b said

Still having a hard time wrapping my head around this. You can't use a sweep test on a dyno set an ignition curve because it sweeps too fast and the power changes you see won't be accurate enough to determine a curve. But, you can use a dyno in a sweep test to determine if you made any gains when you change the curve?

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How often do you have the crate engines on the dyno? They’re fairly mild (~9.2:1 comp and 450hp right?) and it wouldn’t be hard to try a steady state test at peak TQ and swing the timing around. Just to see what happens. I for one do NOT have the experience on a dyno either one of you have, but I do know one of the smartest guys I’ve ever been around on a dyno did exactly that to find the timing requirements. I’d be very interested in the results of your test.