E85 Returnless. How much power has been had?!

[Lstruck03]

First off, I want to say, that this is not a "return vs a returnless" debate. I'd like for it not to venture that way. Please refrain from "you are pushing the returnless too far" and "that is not going to last" comments. I am only curious how much power has been seen with e85, on a returnless system!

I am scheduled for a tune update on dec 1, for my switch to the corn. I have 3 "upgraded" ford gt pumps with 3 driver modules and a 8ga feed wire. -8 fuel line, fore rails, bosch 105lb injectors.

Currently, on 80lb injectors, with 91 and torco mix, the car makes 780's on 2 different local mustang dyno's and made 876 (followed by 856) on a dynojet.

I am not 100% sure 105's will be enough, since the car makes more power than expected (stock motor, 78mm on 21 psi, 16* timing). But, we will see how far I get. I'd like to see ~825 mustang dyno.

 

[cj428mach]

I think the 105's will be fine. 04sleeper did 714rwhp with 2 GT pumps and BAP. I can't imagine the headache that thing will be to tune returnless but goodluck.

 

[03Steve]

I saw Marshall Carpenter run an 8.97@151 with a returnless at Bowling Green this year.

 

[Lstruck03]

I saw Marshall Carpenter run an 8.97@151 with a returnless at Bowling Green this year.

I bet that car is making some power. Wow.

 

[Regulars520]

Not to High jack your thread at all but on my 99 I am converting to E85 and have 2 svt focus pumps and a bap and 80's which I will be upgrading to 1d 1000's. I read you have 3 FPDMS and stock 03-04 comes with dual or single FPDM? 99/01 Have single FPDM. How did you wire in that third FPDM? Did you tap into the existing FPDM and just run it to the second or thrid pump? EDIT: Nevermind Found a diagram

 

[Lstruck03]

Not to High jack your thread at all but on my 99 I am converting to E85 and have 2 svt focus pumps and a bap and 80's which I will be upgrading to 1d 1000's. I read you have 3 FPDMS and stock 03-04 comes with dual or single FPDM? 99/01 Have single FPDM. How did you wire in that third FPDM? Did you tap into the existing FPDM and just run it to the second or thrid pump? EDIT: Nevermind Found a diagram

Factory 03/04 is a single fpdm also. I had a bracket and harness made for 3 from a member here, Black306.

 

[Tractionless1]

Not to High jack your thread at all but on my 99 I am converting to E85 and have 2 svt focus pumps and a bap and 80's which I will be upgrading to 1d 1000's. I read you have 3 FPDMS and stock 03-04 comes with dual or single FPDM? 99/01 Have single FPDM. How did you wire in that third FPDM? Did you tap into the existing FPDM and just run it to the second or thrid pump? EDIT: Nevermind Found a diagram

Have you conformed the Focus pumps are E85 compatible?

 

[Regulars520]

Have you conformed the Focus pumps are E85 compatible?

Depends on where you look. Theres a mix of people saying yes and people saying no. I'm new to E85 with fuel injection but not new to E85. I built my wifes 70 Mach1 to run on E85. From my personal expierence playing with E85 is that I have not seen to many pumps that fail do to corrosive issues but do to being overworked or not prefiltered correctly. I run a 200LPH external pump to her 395 stroker with 13.5:1 compression without issue. I know from hands on that if you use a paper filter you run the risk of clogging due to the glue coming undone after excessive exposure to ethanol. I run stainless mesh filters before the pump and before the carb. If you are using a steel tank I have found that you will be fighting internal rust issues and build up in the filters and pump if you do not run a filter prior to the pump. Due to ethanol absorbing water out of the air. I usually make sure her tank is full during storage times to keep the rust to a minimum. Not saying what I know is how it is, its just what I have personally expierenced. I honestly dont think my twin focus pumps with a bap are going to meet what I am wanting to produce. Which is roughly high 600 low 700 at the wheels. So Ill probably be swapping them out anyway.

 

[JeremyH]

What is you base pressure? At around50-60psi base pressure I could see 850-900rwhp granted everything is running good. You upgraded the feed line to 8an, did you upgrade the filter or clean/change it recently?