How much power with 750cc's and e85?
 

Does anyone know what can be expected with e85 and 750cc injectors?

Also, what will it do to O2 sensors? No need to worry about cats luckily. :)

Re: How much power with 750cc's and e85?
 

What fuel pressure? What is your BSFC? What is your expected air consumption?

Re: How much power with 750cc's and e85?
 

If you're running anything larger than a 16g, I think you'll be needed more injector. Your duty cycle might be too close for comfort.

Re: How much power with 750cc's and e85?
 

Uhh, I was running 720's with a FP Red, they can handle more than a 16G. I maxed out my Poopra pump before I maxed out my 720's. Even on my old 20G setup, 550's were plenty. Considering that E85 needs roughly 20% more fuel to have the correct A/F ratio at WOT, your 750's now become the equivalent of 625's on gasoline, which is probably good for 25psi on a 50-trim.

Re: How much power with 750cc's and e85?
 

My opinion is to always have enough injector. Buy one set and be done with it, so that it will never be an issue again.

Re: How much power with 750cc's and e85?
 

Or just have some awesome EMS that can control tons of injectors. Why have a set of four 1600cc injectors when instead you could have sixteen 450s!!

Re: How much power with 750cc's and e85?
 

I thought it was closer to 25 or 30% more. Either way, those should handle quite a bit.

Re: How much power with 750cc's and e85?
 

Couldn't give you a power number with those injectors, but I can let you know that either E85 or leaded 110 ate up one of our O2 sesnors. However, Santa has been running E85 on a close to stock fuel system with no adverse affects as of yet...

Re: How much power with 750cc's and e85?
 

I was at 105% fuel injector on my 780cc with a 60/40 mix of e85/92 octane at 24psi on a gt 35 dynoed at 400whp.

Now I run 1600cc injector at 58% duty cycle at 27psi on 60/40 mix.

Jim

Re: How much power with 750cc's and e85?
 

Well, I have an RRFPR with whatever baseline I choose, walbro 255, an sc61 but right now maybe no more than 20psi because I was dumb and got the 2bar posative map sensor instead of the 5 bar, which I should have.

Re: How much power with 750cc's and e85?
 

I've got twin HP Walbro 255's, 720cc primaries and 450cc secondaries. I should be ready for E85 next year. That will be replacing my 100 octane unleaded I've been using for years. I've been hearing great things about it.

Re: How much power with 750cc's and e85?
 

What managment system will you use, if you don't mind?

Re: How much power with 750cc's and e85?
 

The E85 ate up O2 sensors? Crap, that is one of the big reasons I wanted to go to it. That and it should be more consistent than the 111 from Bobby & Steves. Are you using the Bosch WBO2 sensors?

Re: How much power with 750cc's and e85?
 

What about cars meant to use e85. My dad's van is set up for it, and he hasn't had any issues I think. I think it threw a CEL but it went away? I'll ask him, but he uses e85 all the time. It smells like dinner when he drives off.

Re: How much power with 750cc's and e85?
 

E85 will not eat o2 sensors. It was more than likely the leaded 110. Alchohol(e85) is not bad for 02 sensors, lead is.

Use the E85, dont worry about anything except for the possibility of corroding the aluminum pieces in your fuel system. Even that I wouldnt worry about it to much with how much you drive your car.

1.79 for 105 octane, hell yeah.:)

Re: How much power with 750cc's and e85?
 

Speaking of the stuff at bobby and steve's gas, I get less knock on my 60/40 mix than I do straight 111 race gas at bobby and steve's. That doesn't make sense since my 60/40 mix should be around 100 octane or else bobby and steve's race gas is shit.

Re: How much power with 750cc's and e85?
 

I think it smells more like popcorn

Re: How much power with 750cc's and e85?
 

Octane rating aside, is it just the alchohol? Cooler burn?

I havent researched it enough to know the true answer.

Re: How much power with 750cc's and e85?
 

Well, This thread has been pretty helpful so far, but, I think my fuel rail might be aluminum, and I will get that coated and possibly my intake manifold, but the head gets to suffer the wrath of corn booze.

BTW, does anyone know what kind of long term damage an aluminum piston will suffer? Maybe none since the fuel is burning in there?

Re: How much power with 750cc's and e85?
 

I drove all summer and late last year on e85 mix and recently replaced my head gasket. Wisecos were fine, head did not look to be any worse for the wear and the fuel rail is fine.

It is my understanding that ethanol needs water to be present to really become corrosive to aluminum. Either way 7,000+ miles shows no detectable wear. I would be more concerned with the rubber fuel lines before the fuel rail.

Re: How much power with 750cc's and e85?
 

Yeah, thats why my buddies professors said too. I wouldnt worry about it at all. How lean can you go on E85?

Re: How much power with 750cc's and e85?
 

Yea, eff that coating business. If some X number of years down the road your shit looks questionable, just get a new fuel rail!

Re: How much power with 750cc's and e85?
 

The best part of running e85 is having the freedom to run high boost at all times. Who really can afford to run race gas daily?

Re: How much power with 750cc's and e85?
 

This is sounding tempting...for the colt. 60/40 eh?

Re: How much power with 750cc's and e85?
 

I'm looking to do this for next season. I'm looking at the FIC 1150 injectors, keeping the stock fuel lines, and the 255hp pump on my 50 trim setup. If the 255 get's maxed out, I'll probably be going with that Bosch 044 pump.

I remember this being discussed a long time ago, but does anyone ground their fuel pump or anything when running e85 since it apparently is a conductor of electricity?

Re: How much power with 750cc's and e85?
 

Gasoline conducts electricity. Should we ground the pump now? Gasoline burns easier than e85, so I would guess that you are safer with e85 uner most conditions.

So, as long as I don't store the car for a logn period with e85 in the tank or fuel lines, it should be fine? And convert to non-rubber soft fuel line.

Re: How much power with 750cc's and e85?
 

K smartass, thanks for that.

They install some sort of flame suppressors in the FFV vehicles, and it has something to do with how e85 conducts electricity from what I gathered. And I know a long time ago Eric had mentioned grounding our fuel pumps because we don't have that supressor. Is anyone grounding any additional components, or just running the cars as they are?

Re: How much power with 750cc's and e85?
 

Wow, that is interesting because this is a quote straight off the US DOT website "Ethanol and Ethanol blends conduct electricity. Gasoline, by contrast, is an electrical insulator."

http://www.chemtrec.org/NR/rdonlyres...elMixtures.pdf

Re: How much power with 750cc's and e85?
 

I must say that I haven't seen any writeups about E85 convert cars having corrosive problems. I even read about a Mustang that has been running on it for over a year without any sign of wear on the fuel system. The most interesting point he made was the fact that he did not protectively coat anything.

Re: How much power with 750cc's and e85?
 

It's a very slow process. Some rubbers and uncoated aluminum can slowly weaken or oxidize. I don't know any concrete numbers, but I expect it's years before any problems make themselves known. For those of us who pull most of those parts off on a semi regular basis it shouldn't be a problem to check and replace/upgrade accordingly.

Re: How much power with 750cc's and e85?
 

Alright, I was wrong, (Sorry brandon) according to them, but thank you for that link, it is quite interesting. Just below that tidbit is another, more interesting fact:

At low temps (32*F) e85 vapor is more flamable than gasoline vapor.

edit: nvm.

Edit: also, I just read that the vapor settles in low spots, so would there need to be mods to the gas tank?

Re: How much power with 750cc's and e85?
 

You guys are overthinking this. Put it in, tune accordingly and have fun. You'll be replacing engines before your aluminum parts disintegrate from an ethanol blend.

Re: How much power with 750cc's and e85?
 

My fuel system consists of a walb255, FPR, and 720cc injectors. I'm using a 20g turbo, do you think I could tune that with my safcII or do I need better tuning capabilities?

Re: How much power with 750cc's and e85?
 

http://forums.evolutionm.net/showthread.php?t=269341

^750's(i think), 20G, Boom.

I was just reading a shit-ton on this stuff.

DSMLINK forums has some more shit, just search e85 in google.
Heres the spoon for your mouth


I plan to run e85 on 850's, E316G, 255 wally, afpr and all on a tune via DSMLINK.

I've been looking to find any current setups running near mine to find out what ratios and volumes to set my 'link to.

only 1800$ and ill be writing up a thing or two on this e85 on a 16G poop. Can't wait to smell like the alley behind a bar!

Re: How much power with 750cc's and e85?
 

For some reason the first link wouldn't work. Dsmlink would be nice but I can't afford it right now, what do you think about tuning that much fuel with a safcII?

Re: How much power with 750cc's and e85?
 

Hmm..Link works for me. Check the google link, that is where I first came across the evomn link.

Re: How much power with 750cc's and e85?
 

You'll be fine. E85 takes roughly 30% more fuel to run stoich, so you only need to subtract about 19% fuel at idle and part throttle to make 720's work. Well within the range of a SAFC2.

Re: How much power with 750cc's and e85?
 

HKS: What MAS are you running?

As far as tuning, 720s+ E85, should work very well with an SAFC on paper, better than trying to tune them on pump gas with all the timing side effects you run into with having to go very negative on the SAFC.

The biggest problem will be the car making too much power and maxing out the 720s early. 720s on E85 are comparing in power handling to 510-550cc injectors on normal gas.

Re: How much power with 750cc's and e85?
 

That answer is good enough for me. :) Just too bad it took 9 months to get it. ;)

Re: How much power with 750cc's and e85?
 

I found some good equations in that evomn site figuring out e85 and what injectors but I'm not a math-magician so I don't really know how far my 850's will get me with an E316G w/2g MAS n' 255 AFPR.