vaticano

iTrader: (8)

Just change {B3601} to 9.765. Click Engine Calbration, Fuel, Mixture, Parameters. It's right at the top B3601 Ratio of air to fuel for stoichiometry. That is all you need to change to run E-85. It may not be perfect but will be close enough to prevent any damage. I did this in my stock truck and it ran just fine. I did later on put in the high octan table from my car and got a bit better gas milage and some horse power. But the one change is all you need to get you going.

waterbug1999

iTrader: (3)

Yea, I see that... And understand as well.

But, you are going to need to flow more fuel... So, what chart is that?

vaticano

iTrader: (8)

I'm just tring to save a little gas by running it a bit lean. As for the PE I just use 15% more fuel for PE which is actually 8.3:1. That does equate to max power lean. If I recall correctly the normal PE for our cars is +15% more fuel stock, so you don't have to add more than that. With the nitrous you should be using more fuel anyway so if you use a dry shot your tune is already set up for it, if you use a wet kit you will need to use a bigger fuel jet. I would say a 30% larger jet to start since E-85 uses 30% more fuel.

vaticano

iTrader: (8)

That one table will control the fuel. If you want to run it more on the rich side in PE you would change your PE table. I don't recall the table #.

waterbug1999

iTrader: (3)

Well, I have the NANO kit and they say to use ~25% larger fuel jet to match the N20, and thats on Gas.

So, I guess ill have to use the 100 shot N20 pill and the 200 shot fuel pill.. ???

waterbug1999

iTrader: (3)

So, your saying if I change B3601 to the ~9.765, the car will adjust the AF to that, and is fine?

And "should" be between the E85 max power rich ...... 6.975 E85 max power lean ..... 8.4687 when WOT?

vaticano

iTrader: (8)

Yes. It will likely be closer to the 8.4 at WOT, but that will depend on your current tune. Just be sure to check with your wideband before you get on it, just to be safe. Good luck, gotta go. Keep us posted on how it goes.

Schwanke Engines

iTrader: (1)

Yes, just change the stoich number, save the cal as a new file. Reload it and you will see that EFI Live has changed all of your other numbers. You will be good to go.

waterbug1999

iTrader: (3)

Cool, thanks.

Now, you wanna show me what to change in my 2007 Z71's tune to get more MPG? LOL

kgkern01

iTrader: (10)

I have a 95 TA with bolt-on's + heads with 30# SVO's and would also like to try E85 out, not for full time use, but have a tune that I can load when I want to use it. I know that the injector constant should be set to a 30% smaller size so the PCM adds more fuel, correct? (24.37# in tune for 31.68# SVO injectors).

What else would I need to change in TunerCat program to run E85?

vaticano

iTrader: (8)

I picked up 2 MPG in my 05 Sierra by altering the tranny settings.

waterbug1999

iTrader: (3)

How you achieve that?

Mine has the V4 mode.... But, it seems that it is never in it. lol

vaticano

iTrader: (8)

Just read through this a few times.
http://forum.efilive.com/showthread....=tranny+tuning

gtorep

iTrader: (18)

New to the thread, but read all 17 pages. Anyways, gut tired of spending 4.18 a gallon and I am about to switch to e-85 because I am curently running a 11:4 compression ratio fulley modded GTO. My fuel system consist of a LPE 255lph fuel pump and a set of ford 30lb red tops..... So I almost got it covered.........

Here goes the question, since the ford injectors are rated at 30lbs at 42psi and then on LS engines they end up being around 36lbs at 55 psi.... Is a 36lb injector enough for a modded e-85 setup? Im only seeing about 72% DC @ WOT on the injectors right now and the car is making 456rwhp. I know It would be cutting everything real close considering E-85 needs an additional 30%, thus putting my injectors right against 100% DC. But is this a bad thing? In reality the injectors would really only see 100% DC 2 to 5 times a day and for no longer than 11 seconds at most? I think I just answered my own question, but what do you experienced mid level HP E-85 guys think? Keep 36's or bite off another set and go 42, do you think its safe?

B4Cya

I don't have any dyno sheets but estimate my 04' GTO around 400whp on 93 octane. I dropped in a set of 48lb Accel injectors, still stock fuel pump and have been running e85 with no problems.

The car had already been tuned for the heads/cam so I've just been tweaking the tune with a predator. Got the injector slope dialed in tight just need to start taking away some fuel since it's still running rich at WOT, but I've added 3 degrees of timing with no traces of knock. Running NGK copper 5.5s.

The car starts a little harder, sounds a little meaner, and my mileage hasn't been bad at all.

fastlane02

iTrader: (10)

alright guys i'm trying to find a place down by indy that converts cars to e85It was posted in this thread and i've been searching for a while (all 17 pages) and can not find it. someone want to help me out here.

thanks

2SLO4ME

iTrader: (39)

It was me, Post #275 on page 14. He doesn't convert your car to E-85 you have to do that yourself, all he did was tune my car to run on E-85. You have to get the appropriate mods like injectors and high flow fuel pump installed first and he will get it running tip top shape. One thing that I do recommend doing is changing your fuel filter.

fil131

iTrader: (2)

Is this the same for HPTuners?

Can you just change the Stoichiometric value and everything changes for you? Or do you have to change all the values manually?

Blown383

iTrader: (2)

Was there a big difference in the NOx, HC, and CO readings?

-B

vaticano

iTrader: (8)

I am not 100% sure. I would think it would work. I changed it using EFI LIve then pulled it with HP Tuners. I don't use the HP so I am not familiar with it's layout. But it appears that the only value changed is the Stoich AFR. If you like I can send you the HP file, it's from my truck, and you can look at it. If you use HP you are likely more familiar with it then myself.