TonyG

I run dual maps in my Evo X. 91 pump and E85.

The difference is about 50RWHP.

E85 rocks in a turbo engine for sure. High octane, cool burning and clean. And much less expensive and far more available than race gas.

Do it!

TonyG

TonyG

100% yes.

And you don't need to make many changes. Just have a fuel pump that's compatible. The rest will be fine.

Obviously you need to have large enough injectors.

Get a computer that allows you to run dual maps.

TonyG

lee101315

Well, E85 allows you to push boundaries in the same way anabolic steroids help athletes cheat. You can bend certain rules and get away with a lot more on E85 than you can with 93 octane fuel.

Adonay

I would say yes . If you have the possibility to refill e85 locally. If i were you i would just get a 044 and install it pair it with BIG injectors 120lb\hr and your all set. Make sure you have replaced the fuelines in the engine bay
My combustion chamber was soooo clean after i ran E85 for some time , same goes for exhaust valves\ports.

TonyG

eh... not really. We're not talking about things like meth/water injection.

You always tune to the fuel. 91 pump, 93 pump, E85, VP 110, VP 100, C16, etc.

If you have to tune to pump gas, you'll always be fuel limited. The fuel will always be holding back what the engine is capable of (especially in a forced induction application).

If you tune to race fuel (and E85 is right there), your fuel won't be the limiting factor in power production.

So it's not an issue of bending rules. It's an issue of being restrained by using crap 91/93 pump gas (and yes it's crap) or not being restrained when using good fuel (race fuel and/or E85).



TonyG

odonnell

My reason for conversion is it's much less prone to detonation and you can of course get away with more timing. Lower EGTs. So even if you aren't pushing the limits, you still have a margin of safety.

Paulyy

80lb injectors wont be enough

lee101315

...... Same difference

968gene

Bumping for any additional comments....

Dave W.

Are you still undecided? You started this thread over a year ago, how's it going?

I've been running E85 in my DD 951 for almost 3 years. My 044 fuel pump went bad a couple months ago, so I got another plus I changed the fuel filter and the strainer in the tank. I like to add a bottle of Lucas Ethanol injector cleaner once every few months as preventative measure. Otherwise there's no issues with the fuel.

Humboldtgrin

The main problem with E85 is availability.

968gene

"Are you still undecided? You started this thread over a year ago, how's it going? "

Other projects always seem to jump in front of the turbo project....I have E85 available locally, so I'm going to plumb the system for E85...as soon as I can finish the interior....

Tom M'Guinn

I've been using E85 since early 2015 with no fuel-related problems (knock on wood) . Took me a while to get it tuned right, but once tuned it performs on par with 100 octane in my motor (but cooler and much cheaper). This is a 3L motor with 044 pump, stock fuel rail, replacement rubber fuel hoses under hood, ID1300 injectors, 3 bar fuel pressure, MSD ignition and HVC coil, 20+psi boost with water/meth injection.

I originally tuned it myself using the Vitesse piggyback. After trial and error I got that working well, but recently sent all my files to John at Vitesse and had him program a new Chipboard with his latest MAF software and multiple maps tuned for my set-up. His maps were just spot on right out of the box with zero adjustments. Drivability improved too, in part I think because he adjusted the injector deadtime to match the ID1300 injectors, or maybe just because he's a wizard, I dunno...

968gene

so so you are pleased with the 1300's? What is your HP?

v8killer

M-Tune with E85 since 2011 20k miles and a lot of track events. Zero corrosive issues or fuel storage issues.

M-Tune E85 80lb. injectors,Turbosmart boost controller, 18lbs. 330rwhp, 22lbs. 368rwhp (16psi. 91 oct. 299rwhp)

60-1 hifi turbo,SFR FMIC, KISS oil cooler,SFR Stg1 header.
.
Built 2.5L Wossner rods and pistons, O-ringed head.