(Possibly) Blew a head gasket looking for suggestions

[arlisscm]

What is the absolute maximum revs our unmodified, factory head and valve train can handle without floating/damage (given a built bottom end, like the SP63 in your engine bay)?

Not fully sure.

My old DHM tune back in the day revved to 7,500RPM, but I never tracked the car with that tune.

Had the limit set at 7,000RPM for the last few years and it hasn't been an issue on track (and apparently my factory engine is fine).

I can ask SP63, but when I floated the idea of 7,500RPM they didn't bring it up as an issue.

 

[arlisscm]

No real big updates at the moment. On the third and likely final iteration on my re-tune with Jason. Once again basically at the limit for 93 octane, only real difference to my previous tune is the rev limit is at 7,400RPM. I am working out the logistics of ethanol, considering the nearest station that has e85 is ~40 minutes away, I'm putting together a plan to store and mix it at home. Likely best solution is a climate controlled fuel shed, so I don't have a drum of e85 in my house (since my shop only exists in my mind currently).

Car feels and sounds good, nothing seems out of the ordinary. Getting packed up and loaded up this evening as I'm trailering down to Pocono Raceway tomorrow right after work, out on track Saturday and Sunday.

One small update is it looks like my new brake setup is going to ship out next week, so this is probably the last set of track days with my Wilwood setup up front.