Originally Posted By: NOX
It had to be detonation blowing out that head gasket, right? Not due to the compression, per-se (except as compression effects burn rate). You were running forged pistons, right?

I'm not questioning you, just thinking out loud, trying to wrap my brain around it.

That's my thoughts too. And a high compression engine with starting issues wouldn't be fuel octane.


70 Triumph 650 cc ECTA current record holder