Quote:
Originally Posted by Turbo_RORO
In all honesty it is not that much. The usual rule of thumb is what I went with. 2* per 50 hp of nitrous applied. So a 200 shot will only have you pull 8* of timing. My E85 tune was usually in the mid to high 30s. so even on nitrous that would keep timing in the 30s to high 28*. But I don't remember going that high honestly. Even now on boost with E85 I run 24-26* timing. But I can speak for Beasley.
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The best rule of thumb is to read the plugs and give the engine what it wants. However yes 2 degrees per 50 is the standard. I am surprised these engines can take that much timing. I thought 29-30 degrees NA on E85 was max for Wot spark around peak tq. Either way thanks for sharing your thoughts!