E85 conversion

[1BadAssSS]

I've seen it mentioned a few times here but I have no idea what it is or does to horsepower.

Can someone please explaine it to me?

[Unreal]

Ethanol based fuel. 85% ethanol where most gas is 10%. Basically higher octane fuel, but you need to use ~30% more of it to work. With a big enough fuel system to handle the extra 30%, and tuning or flex fuel, you basically have race gas you can get at a pump (assuming any stations close to you). Some parts of the country have it all over, some don't have it at all. High octane lets you add timing/boost which can add power. For a NA car like yours, gains are minimal, maybe a few HP from added timing. On a turbo/blower car that can up the boost you can get 100+hp.

[1BadAssSS]

Now I know.

Thanks!

[1sick_eg]

One of the key benefits of ethanol is it's cooling effect on the intake charge. It's a great fuel to run, especially if you have plenty of pumps in your area. One thing to note is being in an area that runs a winter blend. I doubt you have that issue in Alabama, but it's possible. Winter blends are usually around 75% ethanol vs. 85%.

[62nalide]

I'm making the switch to E-85 myself with I.D.2000s and Fore triple pumps

[1sick_eg]

Originally Posted by 62nalide

I'm making the switch to E-85 myself with I.D.2000s and Fore triple pumps

Oh really? That'll work out nicely. I've thought about doing the same.

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[Unreal]

I would do ID1300s for e85, and skip the 2000s. Especially if it isn't a daily.

[62nalide]

Originally Posted by 1sick_eg

Oh really? That'll work out nicely. I've thought about doing the same.

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Yup, x275 snail combined with a LLSR

[VADER SS L99]

Originally Posted by 1BadAssSS

I've seen it mentioned a few times here but I have no idea what it is or does to horsepower.

Can someone please explaine it to me?

With your mods you may or may not need new injectors and fuel pump. You could get the flex fuel kit and get it tuned for E85. So long as the fuel pressure doesn't drop and your below 85% IDC I would think you don't need new injectors or pump. If you do need more injector I would get L9H injectors. If you need more pump I would get the ZL1 pump. The ZL1 pump and L9H injectors should be all that you need with just a heads/cam car.

The cool thing about the flex fuel kit is you can put straight fuel in the tank or E85 without needing a retune. Wouldn't have to worry about winter blends or not finding a E85 station. I think E85 gains NA are around 10-15 RWHP over 93 octane and 20-25RWHP over 91 octane. 10 RWHP is not a very cost effective gain if you need pump and injectors and have 93 octane available but 25RWHP is great if all you need is the flex fuel conversion and a re tune if you only have 91 octane available. Like here where I live its pretty much 91 octane only with a select few stations selling 93 octane for over $5.50 a gallon but E85 is everywhere and cheap.

[1BadAssSS]

I thought the 1LE has a ZL1 pump?

[Pro Stock John]

So... I'm aware of a twin turbo LS 4th gen that has gone mid 7's in the 1/4 on E85.

I know a local friend with a cam/blower manual 5th gen that has made 700rwhp on E85.

[VADER SS L99]

Originally Posted by 1BadAssSS

I thought the 1LE has a ZL1 pump?

It does. Excuse my ignorance for not looking at your avatar.

[1BadAssSS]

So then the only issue would be larger injectors?

[1BadAssSS]

And tuning?