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Any one tune for E85?

So what's the status on this? I might consider doing this conversion on my car for my turbo/3L build.


As would I, but i like my car the way it is for now and don't want to mess with changing out injectors and getting a tune in an area where i cant even buy E85. I would love to see results though
 
If you can get it locally and can get a tuner for it (like an SCT Xcal2 that lets you switch back to a regular gas tune) its definitely a good idea.
Like I've mentioned many times and showed the comparison dyno, my brother did this with his '03 Cobra powered Mustang. In a FI application that allows you to run more timing with E85, you'd gain 30hp I'd guess in a Turbo 3L. He picked up 30rwhp/tq in a 550hp/700ftlbs blown application.
You're gonna want 42-60# injectors and a good pump, 255lph at least or a boost-a-pump.
If you can get it locally easily and don't mind the decreased mpg, go for it.
-J
 
There are 5 stations within 5 miles from my house with a number scattered throughout the Twin Cities that offer E85. I already have an Xcal3 with PRP and this car is no longer my DD so I can afford to lose the mpg's.

I currently have lightning 42# injectors and a 255LPH pump. However I'm just not sure about all of the o-rings and lines throughout the system and what else I would need to change out to run E85.
 
Personally I wouldn't worry too much about the lines or even O-rings. I will tell you my brother runs some upper cylinder lube with most of his tanks but he probably only drives 2000 miles a year. Basically the cylinder lube is what guys that run alcohol have to run and will help as E85 is basically the same. Its cheap and the 'no-scented' stuff he uses makes it smell like nitro to me---very nice :)
If you have it that available and the tuning ability, it would be a no brainer for me. Your car will run cooler and make a good amount more power.
As far as injectors and pump go, a single 255 pump has been run many times at 500rwhp and should cover you on E85. If it needs help, something like a KenneBell boost-a-pump is a simple fix. My brother makes about 500rwhp (more as its through a loose non-lockup converter) with 60# injectors and only runs out with a 75 shot of N20. I would run the 42s until you max them and then find some replacement 60s if you need them. I'd bet on the 42/255 being OK for you.
I hope you try it, if I had it that available to me my Mustang would run E85.
-J
 
I'm a ways out on completeing my build (shooting completion of everything sometime in April just in time for SZ). My goal right now is to obtain all the parts for my engine build. Then pull everything fomr the car, send it out for paint, and install everything. I'm putting in the 42# injectors as well as the 255lph pump with my turbo install so it should just require a retune to go to the E85 in the future. I would like to get everything up and running before I start to work with E85, but you can bet I will be doing in later on. E85 is readily available for me as I previously mentioned. It seems that I would be stupid not to explore the option of using it.
 
Granted our tuner has many hours with his and other customer's cars, but it only took him 2-3 dyno pulls for the WOT/part-throttle stuff and only a few tweaks on cold start strategy.
I agree starting with gas, but I don't think E85 will be as bad as you think to tune.
I'm looking forward to your results.
-J
 
As soon as my gasoline tune is dialed in (Joey's waiting on my datalogs) Joey will begin working on an E85 tune. This experiment is for my '00 SE, if all goes well i will apply it to my SVT.

So far I have done the following mods:
- SVT UIM/TB
- KKM / Pud heatshield
- '01 Cougar LIM - Gutted/IMRC Delete (got fed up after 3 IMRC repairs)
- 24# EV1 style injector conversion, with alternative fuel o-rings (including fuel rail o-ring)
- MSDS headers/y-pipe and Stock SVT cat-back
- Nautilus Gasoline tune (Xcal3+dual wideband O2)

The project has slowed a bit because I'm getting close to closing on the house I'm building, but I plan to pick it back up as soon as I get moved in to the new place.

So hopefully there is a benifit to all this, and at very least Joey will get to dabble in E85 tuning.

Oh yeah, I plan on getting a flip-chip so the gasoline and E85 tunes are redily available. This should make it easier to travel around areas with short e85 supply.

As soon as the tunes are 'complete', I will try to get to a dyno to see if there are any noticable gains/losses to weigh out the cost/benifit ratio.

Any update on this? I've got Joey retuning mine right now, and am really thinking about switching over to E85. Ive got the Ford GT pump (265 lph) and 39lb/hr injectors.
 
Any update on this? I've got Joey retuning mine right now, and am really thinking about switching over to E85. Ive got the Ford GT pump (265 lph) and 39lb/hr injectors.

Yea inquiring minds want to know.

FYI I don't know that 39# injectors will be enough? I'm thinking I'm going to need the Ford 60# injectors to run E85 with my build (Ford Racing P/N: M-9593-LU60)... so anyone want to buy a brand new set of 8 42# lightning injectors ;)
 
Yea inquiring minds want to know.

FYI I don't know that 39# injectors will be enough? I'm thinking I'm going to need the Ford 60# injectors to run E85 with my build (Ford Racing P/N: M-9593-LU60)... so anyone want to buy a brand new set of 8 42# lightning injectors ;)

I think they will be good enough for my car, I just have the stock 2.5, and I'm not going to try and run any crazy amount of boost (10-11psi).
 
Just as a note.

I run 1000cc (~95 #/hr) injectors in my WRX for ~300hp at the wheels. I'm not sure off hand what the duty cycle is, it's not real high but it should give you some rough estimate.

I'd probably look at what people are running for your build with gas, then increase the injector size by ~30%
 
Just as a note.

I run 1000cc (~95 #/hr) injectors in my WRX for ~300hp at the wheels. I'm not sure off hand what the duty cycle is, it's not real high but it should give you some rough estimate.

I'd probably look at what people are running for your build with gas, then increase the injector size by ~30%

Well forced induction engines are assumed to be right around 0.75 BSFC. The Noble engine is running at 0.55 BSFC, at about 450BHP. So here is my logic...

Noble (what works)
450x0.55 = 247.5lbs.
247.5lbs/6 injectors = 41.25lbs/hr, Nobles run the 42# Lightning injector, but the tune runs them at about 47lb/hr

My build
500 x 0.55 = 275lbs.
275lbs/6 injectors = 45.8lbs/hr, a bit much for the 42# injector, but doable.

Now here is the more buffered approach...

550 x 0.65 = 357.5lbs.
357.5lbs/6 injectors = 59.58lbs/hr, putting me at 60lb injectors
59.58lbs/hr x 142% = 84.6lbs/hr (based on the AFRst, E85 requires 33.6% more, however the norm seems to be use 42% as a buffer)

So I've contacted TRE Performance about buying 6 RC 1000cc injectors. However in the end I will probably tune my car first to run on 93 pump gas and then switch over.

Good read, linky
And yet another good read, linky

Fuel ........................ AFRst ........ FARst ....... Equivalence Ratio ... Lambda
Gas stoich ................ 14.7 .......... 0.068 ................ 1 ................... 1
Gas max power rich .... 12.5 .......... 0.08 ................. 1.176 .............. 0.8503
Gas max power lean .... 13.23 ........ 0.0755 .............. 1.111 ............. 0.900
E85 stoich .................. 9.765 ....... 0.10235 ............ 1 ................... 1
E85 max power rich ...... 6.975 ....... 0.1434 .............. 1.40 ............... 0.7143
E85 max power lean ..... 8.4687 ...... 0.118 ............... 1.153 .............. 0.8673
E100 stoich ................ 9.0078 ...... 0.111 ............... 1 .................... 1
E100 max power rich .... 6.429 ........ 0.155 .............. 1.4 .................. 0.714
E100 max power lean .... 7.8 .... ...... 0.128 .............. 1.15 ................ 0.870
 
With 100 octane becoming (more) crazy expensive, I've also been interested in e85. But there still aren't really any pumps here in Phoenix. There are more private corporate fleet pumps than public ones... only about 4-5 public that are no where near me. Now if I lived further south... down in Tucson, I'd already be trying this, as there are e85 pumps everywhere.
 
Well forced induction engines are assumed to be right around 0.75 BSFC. The Noble engine is running at 0.55 BSFC, at about 450BHP. So here is my logic...

Noble (what works)
450x0.55 = 247.5lbs.
247.5lbs/6 injectors = 41.25lbs/hr, Nobles run the 42# Lightning injector, but the tune runs them at about 47lb/hr

My build
500 x 0.55 = 275lbs.
275lbs/6 injectors = 45.8lbs/hr, a bit much for the 42# injector, but doable.

Now here is the more buffered approach...

550 x 0.65 = 357.5lbs.
357.5lbs/6 injectors = 59.58lbs/hr, putting me at 60lb injectors
59.58lbs/hr x 142% = 84.6lbs/hr (based on the AFRst, E85 requires 33.6% more, however the norm seems to be use 42% as a buffer)

So I've contacted TRE Performance about buying 6 RC 1000cc injectors. However in the end I will probably tune my car first to run on 93 pump gas and then switch over.

Good read, linky
And yet another good read, linky

Fuel ........................ AFRst ........ FARst ....... Equivalence Ratio ... Lambda
Gas stoich ................ 14.7 .......... 0.068 ................ 1 ................... 1
Gas max power rich .... 12.5 .......... 0.08 ................. 1.176 .............. 0.8503
Gas max power lean .... 13.23 ........ 0.0755 .............. 1.111 ............. 0.900
E85 stoich .................. 9.765 ....... 0.10235 ............ 1 ................... 1
E85 max power rich ...... 6.975 ....... 0.1434 .............. 1.40 ............... 0.7143
E85 max power lean ..... 8.4687 ...... 0.118 ............... 1.153 .............. 0.8673
E100 stoich ................ 9.0078 ...... 0.111 ............... 1 .................... 1
E100 max power rich .... 6.429 ........ 0.155 .............. 1.4 .................. 0.714
E100 max power lean .... 7.8 .... ...... 0.128 .............. 1.15 ................ 0.870

Mike, Ford Racing now offers 80# high impedence injectors for the Mustang guys that max out their 60#s (my brother's E85/N2O Cobra motor being one of them). Might be a good alternative.
-J
 
Bringing this thread back. After talking with DB performance about my tune I ditched the 42# injectors in favor of 80# injectors. Now just need to find a good pump as I'm no longer going to use the 255lph one I have. Most likely going to go with an Aeromotive 340stealth (340lph), p/n 11142.
 
Bringing this thread back. After talking with DB performance about my tune I ditched the 42# injectors in favor of 80# injectors. Now just need to find a good pump as I'm no longer going to use the 255lph one I have. Most likely going to go with an Aeromotive 340stealth (340lph), p/n 11142.

Ive heard nothing but good things about that pump. It should even work for those who have the returnless fuel system as well since its designed to be able to handle constant voltage or pulse width modulation.
 
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