e85 turbo

[bbeck]

So, I'm finishing up a project and will have it on the road soon. I'm hoping to do some body work and adding my turbo to my 2.8L in my beretta while I have it off the road over part of the summer. Originally, I had thought about doing a rmt setup due to ease and cost. I bought the turbo from http://khturbo.net/rmtz24/RMTZ24.html from his phase 1 setup. Now, I want to look at mounting it under the hood and possibly running e85 to be able to turn up the boost once in a while. What should I be looking at running for a computer? I will eventually step up to a 3400 or 3500, but want to run out this good 2.8L for now. I already have a walbro 255 lph in-tank fuel pump. I have been thinking about doing a similar setup as kenton with a rrfpr. Thoughts?

[MidnightriderZ24]

rising rate and injectors wont be enough for e85! you need alot of fuel to run e85 as it burns significantly faster than e10 fuels. tgp chip with a tune and bigger injectors will work.

[robertisaar]

you'll be needing more than that.

stoich for E85 is not the 14.7:1 that gasoline is.

stoich for e85 is 9.765:1, thats a lot of extra fuel, and for WOT you should be running 7:1.

now think about that, you're using 30.7% more fuel when in closed loop. and depending on the original values for WOT, assuming a 12.5:1 ratio, you're using 41.6% more fuel.

make sure you think this out...

[bbeck]

well, never mind the e85 portion of the question. I'll talk that over with the ls1 guys running boost with e85. What should I run for a computer and fuel setup for the turbo setup? I'll worry about the e85 later if I decide to go that route.

[robertisaar]

assuming this is for your beretta(which i'm assuming is running a 1227730), run it as a TGP...

simple swap thats been done before by a lot of people

[bbeck]

well, I thought I had read somewhere that obdII would be the way to go with boost. What all would be needed to change to the tgp setup?

[robertisaar]

if you already have the 1227730 ECM, then pretty much gather the turbo, injectors, hardware, 2 bar MAP... and run like 3 or 4 wires?

i'll put it this way: its stupid-simple...

keeping your tranny in one piece is another story...

EDIT: also how you hook the turbo up to the exhaust can simplify/complicate things. using the stock crossover pipe from a TGP isn't the greatest option, but it will pretty much bolt-up with no issues(other than the rest of the exhaust)

DOUBLE EDIT: read the article you posted that should tell you most of it. and that 45 trim turbo you're using, thats much better suited for a honda than a 2.8...

[bbeck]

Could someone send me the wiring info on the tgp setup?

[robertisaar]

ask and ye shall recieve...

[geoffinbc]

What are you going to do about the fuel pump, o-rings, steel fuel lines, regulator and aluminum fuel rails? None are compatible with E85.

[bbeck]

the fuel pump is already an aftermarket 255 lph and the other stuff will be fine. just search for people that are running it already in the ls-series motors.

[geoffinbc]

No the other stuff will not be just fine, neither will the pump if it not E85 compatible. E85 will corrode and dissolve it all up to nothing if it is used frequently. You might get away with it once and a while but a vehicle running E85 all the time will not. Why do you think all flex fuel vehicles run a full stainless steel fuel system?

A lot of LS series engines are Flex Fuel vehicles so people could just be boosting those since they are already compatible.

From Wikipedia

E-85 ethanol is used in engines modified to accept higher concentrations of ethanol. Such flexible-fuel vehicles (FFV) are designed to run on any mixture of gasoline or ethanol with up to 85% ethanol by volume. There are a few major differences between FFVs and non-FFVs. One is the elimination of bare magnesium, aluminum, and rubber parts in the fuel system. Another is that fuel pumps must be capable of operating with electrically conductive ethanol instead of non-conducting dielectric gasoline fuel. Fuel injection control systems have a wider range of pulse widths to inject approximately 40% more fuel. Stainless steel fuel lines, sometimes lined with plastic, and stainless steel fuel tanks in place of terne fuel tanks are used. In some cases, FFVs use acid-neutralizing motor oil. For vehicles with fuel-tank mounted fuel pumps, additional differences to prevent arcing, as well as flame arrestors positioned in the tank's fill pipe, are also sometimes used.

[bbeck]

I'm not going to argue with you and wikipedia. Guess I'll find out the hard way if I decide to run it.

[bbeck]

Get some hands-on reading before incorrectly correcting others.
Here is a good place to start:
http://www.ls1tech.com/forums/fuelin...r-ls1-e85.html

[AaronGTR]

Ahem, it says right in the factory manual for my 3400 powered car that the fuel system is NOT compatible with E85 and using fuels with excessive levels of ethanol will eventually deteriorate the fuel lines and fittings, O-rings, fuel pump, etc.

Try doing some more research yourself before accusing others of incorrectly correcting you. Just because some people on some other website have tried it doesn't mean it's safe or that their cars will last. Most of them haven't been running them long term yet.