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-   -   E85 Experience (https://www.rx7club.com/alternative-fuels-249/e85-experience-952149/)

RXTASY57 09-19-13 02:53 PM

No problem Howard... like to spread the information.
Nice numbers!

RotaryWeaponSE7EN 10-05-13 10:28 AM

Starting my E85 system build. Should have done this a while ago. Might be bugging Howard once I grab an Adaptronic stand alone too.

BurntOrangeT2 10-07-13 09:48 PM


Originally Posted by RotaryWeaponSE7EN (Post 11590332)
Starting my E85 system build. Should have done this a while ago. Might be bugging Howard once I grab an Adaptronic stand alone too.

Glad you got to see the light there Newton. Don't forget Luke at good ole Beyond Redline.....

darkphantom 10-08-13 09:38 AM

just to add some info into this thread....

34lbs is the max on E85 from what ive seen

anything more than that & you will have to convert to E98 which is just as expensive as c16
& even then with E98 the most ive seen reliable is 40lbs

RotaryWeaponSE7EN 10-08-13 10:04 AM


Originally Posted by BurntOrangeT2 (Post 11592424)
Glad you got to see the light there Newton. Don't forget Luke at good ole Beyond Redline.....

Oh I wont. Just gonna be a busy winter with the kid due in 4 weeks and selling off some of my stored shit and collectibles to finish the car. For now........

RXTASY57 10-08-13 10:16 AM


Originally Posted by darkphantom (Post 11592705)
just to add some info into this thread....

34lbs is the max on E85 from what ive seen

anything more than that & you will have to convert to E98 which is just as expensive as c16
& even then with E98 the most ive seen reliable is 40lbs

As long as you can supply enough fuel, I would say the sky is the limit on E85.
As soon as I get a T6 turbo with a HUGE backside, I will prove this theory.
I have boosted to 32 PSI with no problems.

drftinmx6 10-08-13 10:34 AM

i think mixing in some water injection ( straight water only no meth) would work great with e85, I dont see why it wouldn't, as long as you have a strong ignition and have a good nozzle spraying pre turbo. seeing that water just supresses knock, i dont see how it could hurt, matter of fact the black FD from sweden has that setup on his car and he made 829whp at just 30psi. i'm sure he could turn up the boost another 10 lbs of so easily!

drftinmx6 10-08-13 10:36 AM


Originally Posted by RXTASY57 (Post 11592739)
As long as you can supply enough fuel, I would say the sky is the limit on E85.
As soon as I get a T6 turbo with a HUGE backside, I will prove this theory.
I have boosted to 32 PSI with no problems.

i like the way you're thinking! I will be switching to e85 very soon, i cant wait!

darkphantom 10-08-13 02:52 PM


Originally Posted by RXTASY57 (Post 11592739)
As long as you can supply enough fuel, I would say the sky is the limit on E85.
As soon as I get a T6 turbo with a HUGE backside, I will prove this theory.
I have boosted to 32 PSI with no problems.

from what ive seen in puerto rico.... 3rotor yes but 40lbs of boost on a 2 rotor on e85 is way over the limit....

im talking about lasting not just 2 or 3 passes down the track


Gotta find the picture rxtasty to see how nasty the plate cracked

BurntOrangeT2 10-08-13 04:54 PM


Originally Posted by darkphantom (Post 11592960)
from what ive seen in puerto rico.... 3rotor yes but 40lbs of boost on a 2 rotor on e85 is way over the limit....

im talking about lasting not just 2 or 3 passes down the track


Gotta find the picture rxtasty to see how nasty the plate cracked

no offense Phantom, but if the picture you're going to post is for a motor that's running a micro tech then don't even bother.

RotaryEvolution 10-08-13 05:16 PM

through my research i would say you are on the border with E85, there is no fuel that won't detonate. if you want a relatively safe level for ethanol, 30psi seems to be a reasonable point to stop and consider alternatives like water injection for more.

E85 with enough water, you could potentially run up to 50psi with a good ignition system/tune.

as for microtech, even though i hate the shit out of them, they are quite reliable. i haven't retuned mine in over 5 years, nor have i even checked my AFRs in about that same amount of time. of course i probably just screwed myself and will pop the motor on the way home... granted i have seen their MAP filters quite erratic lately, cause for some of the problems people have had with them.

BurntOrangeT2 10-08-13 06:26 PM


Originally Posted by RotaryWeaponSE7EN (Post 11592724)
Oh I wont. Just gonna be a busy winter with the kid due in 4 weeks and selling off some of my stored shit and collectibles to finish the car. For now........

No doubt, don't forget to add new tires to the list lol. Get that FFE trigger wheel sucka....Sorry off topic.


Originally Posted by RotaryEvolution (Post 11593057)
through my research i would say you are on the border with E85, there is no fuel that won't detonate. if you want a relatively safe level for ethanol, 30psi seems to be a reasonable point to stop and consider alternatives like water injection for more.

E85 with enough water, you could potentially run up to 50psi with a good ignition system/tune.

as for microtech, even though i hate the shit out of them, they are quite reliable. i haven't retuned mine in over 5 years, nor have i even checked my AFRs in about that same amount of time. of course i probably just screwed myself and will pop the motor on the way home... granted i have seen their MAP filters quite erratic lately, cause for some of the problems people have had with them.

Ben, Man i just cant do MT anymore. Their just isn't enough. Whether it be tuning ability, faulty units, century old software, no resolution......the list goes on. Its just an embarrassing ECU really, i cant really agree that they're reliable for anything other than rebuilds or continious upgrades to make a polished turd that much more polished.....



Howard when do you and Luke plan to be back on the rollers? I know its got to be soon with the TX Mile right around the corner.....

RotaryEvolution 10-08-13 06:32 PM

everyone who has owned a microtech knows how much of a brick they are, when i upgrade again i won't be using one even though it has served me just fine for over 8 years now.

sleeper7 10-08-13 06:53 PM

over 40psi with a T6 turbo. This is first hand experience. Not researched thinking.

RXTASY57 10-09-13 07:48 AM


Originally Posted by sleeper7 (Post 11593131)
over 40psi with a T6 turbo. This is first hand experience. Not researched thinking.

How much have you run Chuck?

Rob XX 7 10-09-13 08:07 AM

with crazy boost levels im assuming these are track only cars, why not get yourself a drum of E98?

RXTASY57 10-09-13 09:47 AM

I have felt 32 PSI and it feels gewd!
Would love to feel 40+ PSI.
That's really got to feel good!
Sounds like a drug huh? :lol:

Kman Art 10-09-13 09:59 AM

Has anybody ever messed with Ignite e85?

http://www.igniteracingfuel.com/E-85.html

I will have to import e85 by the drum anyway so I figured this might be worth it.

RotaryWeaponSE7EN 10-09-13 11:13 AM


Originally Posted by BurntOrangeT2 (Post 11593106)
No doubt, don't forget to add new tires to the list lol. Get that FFE trigger wheel sucka....Sorry off topic.



Ben, Man i just cant do MT anymore. Their just isn't enough. Whether it be tuning ability, faulty units, century old software, no resolution......the list goes on. Its just an embarrassing ECU really, i cant really agree that they're reliable for anything other than rebuilds or continious upgrades to make a polished turd that much more polished.....



Howard when do you and Luke plan to be back on the rollers? I know its got to be soon with the TX Mile right around the corner.....

New tires for the Honda, the falkens on the 7 are still in great condition. That and I wont be DDing it until next spring anyways.

864angel112 10-16-13 12:19 PM

Hey all this has got to be one of the best e85 threads on the forum. I would like your input on choosing a fuel pump for my setup. I see many of you prefer the dual pump set ups however I'd like to stick with a single pump. I have the choice of running a sump tank or none and need a pump to support in the range of 6 to 700hp. I'm kinda leaning towards the magnafuel pump 4703 or the fuelabs 41402. What would your guys do? Or if you think I'm crazy and just think both pumps are over killed let me know before I make an expensive mistake. Thanks Rxtasy57 for such awesome thread.

RXTASY57 10-17-13 07:55 AM


Originally Posted by 864angel112 (Post 11599496)
Hey all this has got to be one of the best e85 threads on the forum. I would like your input on choosing a fuel pump for my setup. I see many of you prefer the dual pump set ups however I'd like to stick with a single pump. I have the choice of running a sump tank or none and need a pump to support in the range of 6 to 700hp. I'm kinda leaning towards the magnafuel pump 4703 or the fuelabs 41402. What would your guys do? Or if you think I'm crazy and just think both pumps are over killed let me know before I make an expensive mistake. Thanks Rxtasy57 for such awesome thread.

I am so impressed with E85, I want everybody to know how wonderful it is!
It's a natural fuel for rotarys!

drftinmx6 10-18-13 09:36 AM


Originally Posted by 864angel112 (Post 11599496)
Hey all this has got to be one of the best e85 threads on the forum. I would like your input on choosing a fuel pump for my setup. I see many of you prefer the dual pump set ups however I'd like to stick with a single pump. I have the choice of running a sump tank or none and need a pump to support in the range of 6 to 700hp. I'm kinda leaning towards the magnafuel pump 4703 or the fuelabs 41402. What would your guys do? Or if you think I'm crazy and just think both pumps are over killed let me know before I make an expensive mistake. Thanks Rxtasy57 for such awesome thread.

i'd say give the magnafuel pump a shot, i think it'll be a very good pump for you

864angel112 10-18-13 11:14 AM

Well called fuelab and the recomened the 42402 pump. I really like the idea of using their electronic regulator to slow the pump down at idle then comes back alive as fuel is needed.

Zenki FC3S 11-17-13 01:03 PM

Changed the oil the other day and dang did it smell like etoh. Think im getting blowby or just odor. Viscosity of the oil felt thin but im not sure. New rebuild with 500 miles

RXTASY57 11-19-13 09:59 AM


Originally Posted by Zenki FC3S (Post 11623165)
Changed the oil the other day and dang did it smell like etoh. Think im getting blowby or just odor. Viscosity of the oil felt thin but im not sure. New rebuild with 500 miles

If you were running gas, it would smell like gas. :nod:


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