High compression guys: what spark plus last?

[Matt_E]

:haha:
Youve had a least everything possible happen to you at least once!

I'm so glad you met Art. LOL

So is Art. :biggrin:

 

[CARBONX2]

Squish velocity too high

 

[SUPERTUNE]

Squish velocity too high

There you go!

190 lbs cranking on a big engine with a PV doesn't tell all.
Do the math and figure the measured compression ratio and MSV property's.
Use TSR software to define the MSV. (Maximum Squish Velocity)