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-   -   Running E85 on a stock FD (https://www.rx7club.com/alternative-fuels-249/running-e85-stock-fd-1037876/)

mikey13b 06-11-13 10:41 PM

Running E85 on a stock FD
 
Hi guys,
I'm just wondering what the minimum parts requirements would be to get E85 running nicely on a stock FD?

Thanks for any info,
Michael

audoetuk 06-22-13 08:37 PM

Probably just an ecu to tune it.

mikey13b 06-26-13 01:21 AM

Will standard injectors and fuel pump be able to cope with e85?
And I assume the fuel lines and filters will need to be changed?

BLACK MAMBA 06-26-13 01:48 AM

Unless you only want to run Half the HP, you will need bigger injector, with bigger injector you will need aftermarket fuel rails, high flow fuel pump, FPR, Filter, and Lines.

RyuZ32 07-03-13 12:56 AM

make sure the E85 is readily available in all your common areas, here in TN where I am theres very few in the areas i frequent

Ghooble 07-04-13 04:36 PM


Originally Posted by FC3S1991 (Post 11504998)
Unless you only want to run Half the HP, you will need bigger injector, with bigger injector you will need aftermarket fuel rails, high flow fuel pump, FPR, Filter, and Lines.

Can I ask why he'd only be running half the HP on e85?

vrx8 07-04-13 04:40 PM

Because e85 requires 35 to 38% more fuel to be able to match gasoline power.

RXTASY57 07-05-13 11:53 AM

about 30%, but the benefits outweigh the detriments tremendously!
You will need some way of controlling the fuel and boost levels.
Do yerself a favor and get bigger injectors and a new haltech and fuel pump(s).
Your engine will last a lot longer on E85 too!

jasonn 07-11-13 08:41 PM

After searching the different threads regarding e85? What seems to be the clear cut injector cc and fuel pump lph for a stockish rx7? I've read Coleman's post about how 1000cc all around will only net roughly 290whp. Right now, I'm pushing 350rwhp on 91 and I'm only running e85 because of its property and availability locally.

RXTASY57 07-12-13 07:58 AM


Originally Posted by jasonn (Post 11518180)
After searching the different threads regarding e85? What seems to be the clear cut injector cc and fuel pump lph for a stockish rx7? I've read Coleman's post about how 1000cc all around will only net roughly 290whp. Right now, I'm pushing 350rwhp on 91 and I'm only running e85 because of its property and availability locally.

If you are happy with 350 RWHP, stay where you are at....if you want almost twice that amount of HP, you can't do it on 91 safely.
Too many people have realized the benefits of E85 by making huge HP numbers over pump gas.
Can't do it on stock equipment.

darkphantom 07-12-13 09:42 AM

agree with rxtasty57.... 450-400 can be tunned on pump safely..... unless your running high boost e85 is necessary

jasonn 07-12-13 01:00 PM


Originally Posted by RXTASY57 (Post 11518497)
If you are happy with 350 RWHP, stay where you are at....if you want almost twice that amount of HP, you can't do it on 91 safely.
Too many people have realized the benefits of E85 by making huge HP numbers over pump gas.
Can't do it on stock equipment.

Power isn't exactly what I'm after but I do think the safety benefits are worth it alone for e85.

RXTASY57 07-13-13 11:43 AM

If you have a way of controlling the fuel, you could run it. You won't make as much power, but it won't detonate either.

jasonn 07-13-13 07:26 PM


Originally Posted by RXTASY57 (Post 11519466)
If you have a way of controlling the fuel, you could run it. You won't make as much power, but it won't detonate either.

I was looking to upgrade the fpr, rails, pump, and inj

mikey13b 05-17-15 06:03 AM

So in theory, if you wanted the simplest way to get e85 running on a stock FD, and making at least equal power to stock, which parts would NEED to be changed/added?

Bart! 02-07-18 03:36 AM


Originally Posted by mikey13b (Post 11915232)
So in theory, if you wanted the simplest way to get e85 running on a stock FD, and making at least equal power to stock, which parts would NEED to be changed/added?

Long shot here but.. did you ever find out what you were looking for? I'm also currently researching this and it's really annoying that everyone just gave their useless feedback but no one actually answered your questions. People need to stop being so pedantic... smh

dguy 02-07-18 11:33 AM

Apologies, responded to the wrong thread.

mikey13b 02-09-18 10:54 PM

I ended up going with FFE secondary rail with bosch 2200cc injectors, kept the stock 550s, replaced all rubber fuel line with e85 rubber line, fpr2000, 20micron fuel filter, walbro 460 fuel pump, adaptronic modular ecu. Need to hook up the flex sensor and it should be good to go.


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