E85 Turbo

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Lames
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E85 Turbo

Postby Lames » Wed Nov 04, 2009 10:20 pm

What do you guys know about having a turbo set up running on E85. What pro's and con's are there. This is just one of the many random thoughts that flutter through my head. I figured I'd throw it out there. E85 is all over where I live so I can get it really easily. I think even my Kroger (local food market) was one of the first in the nation to have E85, and it is on my way to work.
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Re: E85 Turbo

Postby Yoshi » Thu Nov 05, 2009 12:10 am

I hear you can make more power. Thats the extent of what I know tho.
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Re: E85 Turbo

Postby M20_fever » Thu Nov 05, 2009 12:10 am

luck you man, I wish there where more e85 pumps around me. E85 is basically like higher octane gas in turbo terms. You can run higher boost and more aggressive timing. Beyond that I don't know a whole lot, lol.
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Re: E85 Turbo

Postby Lames » Thu Nov 05, 2009 3:25 am

hmmm, ya there is like 20+ some stations in my area that carry E85. The Kroger was the first, I live in a test market for a lot of things from that kind of stuff to fast food crap. Which is nice but every time they get something good, they usually kill it pretty fast. Doesn't hurt the one thing Ohio is good for is corn, and corn make E85. :)

Kind of curious about the E85 stuff I wont lie. Upgrade to an "I" head andkeep the ETA bottom and slap on a turbo and run E85. <.< That be a fun DD.
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Re: E85 Turbo

Postby M20_fever » Thu Nov 05, 2009 1:41 pm

you need to upgrade the entire fuel system to run E85, it will degrade the OE stuff over time. When I re-do my fuel system once I max out the stock set-up I'm going with E85 friendly stuff.
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Re: E85 Turbo

Postby Lames » Thu Nov 05, 2009 2:45 pm

Is it just upgraded E85 friendly O-rings. I saw that it needs bigger injectors and such to run.
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Re: E85 Turbo

Postby M20_fever » Thu Nov 05, 2009 3:07 pm

yeah, any rubber components need to be changed out to alcohol friendly parts. There may be more to it though, I haven't put a lot of research into it yet.
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Re: E85 Turbo

Postby Lames » Thu Nov 05, 2009 7:15 pm

I heard there are a lot of rumors as to what it will and wont eat because people confuse ethanol with methanol. I won't lie it is kinda perking my interest. Off for more R&D into the world of E85!
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Re: E85 Turbo

Postby M20_fever » Thu Nov 05, 2009 7:17 pm

Keep us posted, I'll be looking into this next year.
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Re: E85 Turbo

Postby Lames » Fri Nov 06, 2009 6:29 pm

I'll throw up crap in here if I find anything, same with you guys it can be an E85 notes thread or something.
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Re: E85 Turbo

Postby BavarianSlide » Fri Oct 22, 2010 4:24 pm

Bigger everything in the fuel system. Stoichometric AFR is like 9.76 for an e85 system which is a hard task for stock components let alone a turbo spewing in more air.
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Re: E85 Turbo

Postby M20_fever » Fri Oct 22, 2010 8:51 pm

So basically you just need more e85 to = race fuel?
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Re: E85 Turbo

Postby u3b3rg33k » Sat Oct 23, 2010 6:33 am

BavarianSlide wrote:Bigger everything in the fuel system. Stoichometric AFR is like 9.76 for an e85 system which is a hard task for stock components let alone a turbo spewing in more air.

Lets not talk AFRs, lets talk lambda. Lambda = 1 on e85 and lambda = 1 on E0 are both "stoich." If you have a WB gauge that is in AFR only, you look at 14.7, even if you're on ethanol. if you can switch it to display lambda, then you won't be running your engine pig rich on E85 trying to get the gauge to display 9.

If you throw in 19# or 20# injectors on a stock e30, and then only fill it with e85, it should run just fine - even with a narrowband. Of course, you won't get the benefits of e85 without re-tuning (or boosting). I also understand that high compression engines like it more (including colder weather starting, due to adiabatic heating), in addition to just being more awesome in general, like higher efficiency and whatnot.
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Re: E85 Turbo

Postby BavarianSlide » Mon Oct 25, 2010 12:39 pm

u3b3rg33k wrote:Lets not talk AFRs, lets talk lambda. Lambda = 1 on e85 and lambda = 1 on E0 are both "stoich." If you have a WB gauge that is in AFR only, you look at 14.7, even if you're on ethanol. if you can switch it to display lambda, then you won't be running your engine pig rich on E85 trying to get the gauge to display 9.


I guess I'm a tad confused by this. Lambda=1 on e85 when the mixture is an AFR of 9.76. So what would be the difference between using lambda and using AFR? Is it an issue of the component not being able to read AFR of 9.76? But then that doesnt even make sense to me because if it is reading Lambda=1 that means it was able to read 9.76 AFR. I guess what my mind is thinking is, you cant have a Lambda reading without AFR.
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Re: E85 Turbo

Postby u3b3rg33k » Mon Oct 25, 2010 8:18 pm

AFR is a number that people make up, lambda is a number that the sensor reads.

To put it another way, AFR is calculated from lambda.

A standard gauge with AFR on it is only accurate when running gasoline. Run any other fuel (or fuel mix) and the display is now meaningless.

If you run a gauge that displays lambda, it's always useful, no matter what fuel you're running.

If you run e85 on a car with an AFR gauge, 14.7 = stoich (on all fuels, even though the AFR isn't 14.7).
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