What would you use if your track experienced corrected altitude changes from 2000' to 3800' in the same day? I'm sure there are some of you that run race gas and with careful monitoring of air changes can get pretty close to accurate dial. How would E85 handle these extremes in corrected altitude?

Methanol

Absolutely alcohol.

Just one more veto for Methanol , a typical night here in the desert SW could go from 6450 to 4200 and the only reason to change the dial is to hold some....LOL

I’ve ran all 3 on the same combo. E85 is good, methanol is better.

Methanol continues to gain acceptance as a valid race fuel. Most of the old wives tales that originally tagged along with methanol have proven to be non-issues.

After 6 seasons of experience racing with methanol, I have learned the does and don'ts. Go for it, you will be rewarded with good performance.

quote:

Originally posted by novaX522:
I’ve ran all 3 on the same combo. E85 is good, methanol is better.

Same here. I'd probably still be running E85 if it were still available at the pump around here. Best you can find these days is E70. I got tired of constantly hunting for it, mixing it, and testing it. Switched to methanol and won't be going back to gas or E85 any time soon(ever).

Methanol here for 30 years. You have to change how you think about engine temp though. More heat= better vaporization=more power AND consistency. I have 2 block heaters on each car, and 180 thermostats. Leave at 160, lose .05. I'd rather leave too hot than too cold. I've left at 200 with very little ET change noted. Too rich is better than too lean. You can burn pistons if you try to see where the kill zone is!
Cold engines milk the oil, allows corrosion of anything ferrous in the engine.

That's my experience. Your results may vary....

RIP

Thank you AND thank America.