It was about 90, I think. I didn't care or notice, I was already overstimulated. My tires gained about 5psi from hard lapping. Started getting a little squirly until I lowered the air pressure. (Michelin Pilots)

 

ah, I remember my first time...

 

Oops falling asleep at my desk. I meant 70/30 or better. Actually in my Spec Miata i almost run 100% water with water wetter and my car never heats up even when I am running bumper to bumper with someone in front of me for 45 minutes on a 95 degree day.

 

http://www.redlineoil.com/whitePaper/17.pdf

from the pdf in dyno test results:

Run 100% water with water wetter then put a mix in after the track. But if your car is not heating up all the way tweak your mix to warm the engine, you're losing performance if your car is not heating all the way up. You gotta have some heat in your system to help combustion.


*heating all the way up = getting the needle some where in the middle of your gauge.