B20V on E85

Currently in the process of doing a B20 vtec swap on my 90’ DA. Eventually i want to run e85 on it to get the most out of the build. If anyone has done e85 on a DA and has some help let me know. What kind of kits are out there that are compatible with the car

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What do you mean by “to get the most out of it” ?

Power wise

From what little I know about E85, the fuel efficiency is reduced. So you’re using more fuel in those “Flex Fuel” vehicles. So your fuel/air combustion ratio is different – more fuel needed to output the same power.

I did a quick internet search for that stoichiometric ratio (air/fuel):
Gasoline: 14.7:1
E85: 9.81:1

As for how this affects your oxygen sensor feedback to PGM-FI, compression ratio, fuel injectors, etc. I don’t know. Sounds like a cool project. :slight_smile: I haven’t heard of anyone else doing this though. Are you doing it for any particular reason? Is E85 cheaper? Are you trying to future-proof the car? Just curious.

E85 is best on turbo cars, I prefer 91 pump gas on my b20b. It’s not to hard to get it to run e85 though, basically just fuel pump, injectors, an lines pressure regulator and a tune

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