gas to alcohol

Sterling said

I switched from race fuel to alcohol injection. That was worth 3 tenths in the 1/4 mile. The increase in torque is what helped

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That's different.

Best carb gas to best carb alcohol is 2-3%.
Best car alky to best injected alky is 2-3%.

So...best carb gas to best injected alky is 4-6% and you only see the high end of it when the gas carb is off. Most are. Alcohol is much more tolerant of rich tune ups so guys see a bigger increase than they would if they has their gas carb sorted out better.


I was lucky to gain 2% when I went from carb'd gas to injected alcohol, but I wasn't buying off the shelf carbs. Back then, a good carb was 1500 bucks.