Thread: E85
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Old 04-01-2026, 08:26 AM
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Nacs Fab Nacs Fab is offline
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Quote:
Originally Posted by SRGN View Post
E85 gains are more pronounced on boosted combos, I don't think you will gain much over your current fuel and combo. Your car is hauling pretty good, you might get more out of it with a converter change vs a fuel switch. You are getting close to where a 4500 flange carb would free up some power. With E85 you may also need to upgrade the fuel delivery system as you need about 35% more volume of fuel to make the same power.
I would say the boosted gains is due to cooler IAT's. On my engine dyno simulator I've made 60+hp just switching the fuel (Boosted Application), but not sure if its absolutely true. They claim up to 5% - 15% HP Gains in a boosted application.

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