Works good 105 octain, but burns about 40% more fuel. So you will need a big fuel system to support it.
Going E85...Questions
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Cost depends on whether you are running a carb or FI.
Carb - stick on some quickfuel metering blocks, change float if brass style, change needle and set to alcohol style, and bump up the fuel pump - done.
FI? Bigger injectors, bigger fuel pump, and custom tuning.
I converted my bird about 3 years ago to E85. I have a 12:1 cr pontiac 455. The engine is now tough to warm up, and it smells kind of like popcorn when it's running. Jetting had to go up about 30%, and squirters had to go up a little also. Performance is exactly the same as with race gas. And i'm ready for turbocharging now. Happy camper here.
E85 is roughly 85% ethanol in summer blends, and 70% for winter blend. Tune for summer blend and you'll be a bit fat come winter.
I have the car in storage, and went to fire it up after it has sat for 10 months. Fired right up, so E85 is good for at least that long.
Madmax here on the board also converted. Apparently they used to buy race gas by the barrel, and they race a lot. He's saved a shitton of money on E85, and is happy with it last I heard.
Cautions: If you have any steel components in your fuel system you will want to coat them, or replace them. E85 sucks up moisture, so you want to store it carefully. I run some marvel mystery oil in the E85 for fuel pump lube.
E85 is rated at 105 octane but people are running insane amounts of boost on it. And it stinks
Carb - stick on some quickfuel metering blocks, change float if brass style, change needle and set to alcohol style, and bump up the fuel pump - done.
FI? Bigger injectors, bigger fuel pump, and custom tuning.
I converted my bird about 3 years ago to E85. I have a 12:1 cr pontiac 455. The engine is now tough to warm up, and it smells kind of like popcorn when it's running. Jetting had to go up about 30%, and squirters had to go up a little also. Performance is exactly the same as with race gas. And i'm ready for turbocharging now. Happy camper here.
E85 is roughly 85% ethanol in summer blends, and 70% for winter blend. Tune for summer blend and you'll be a bit fat come winter.
I have the car in storage, and went to fire it up after it has sat for 10 months. Fired right up, so E85 is good for at least that long.
Madmax here on the board also converted. Apparently they used to buy race gas by the barrel, and they race a lot. He's saved a shitton of money on E85, and is happy with it last I heard.
Cautions: If you have any steel components in your fuel system you will want to coat them, or replace them. E85 sucks up moisture, so you want to store it carefully. I run some marvel mystery oil in the E85 for fuel pump lube.
E85 is rated at 105 octane but people are running insane amounts of boost on it. And it stinks
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