more melted pistons

[glhs496]

Anyone else running 18 psi with 14 degrees basic timing on street gas without issues?

I plan on going to the dyno in spring to see what I can get out of 93 octane since race gas has gotten really expensive.

[SUPER60omni]

I did that on a GLHS stage 2 cal. It would have been fine if I had a good map diode......but mine was messed up and It toasted pistons weekley.

[Goodnbuzzd]

Not trying to be a smart arse. but i have used egt's on my snowmobiles and found that while it makes a good baseline, you have to be very carefull, sometimes by the time your egt shows a reading it can be too late. there may be damage already. i would go wideband o2 guage instead.