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Discussion Starter · #1 ·
Hi K20 im putting together my second all motor K setup it will be based around a stage 2 setup and iv talked to a couple people in the last month that are running E85 on there all motor setups and saying they are putting down more power then pump gas.
i thought E85 was mainly for boost??
what are your guys thoughts on running E85 in an all motor setup??

thank you for you input,
 

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Discussion Starter · #6 ·
I made about 10-12whp more with e85 as well on my na setup but had to recently switch back to 93 pump because there are no e85 gas stations in mobile,al(moved from atlanta):mad:

But there are many factors involved as well like importracer2123 said. One factor is make sure all ur fuel lines are upgraded to SS. as many as u can if not all of them. over time e85 eats away at the rubber lines. your injectors have to be big enough because e85 takes more energy, have an aftermarket fpr, etc etc etc etc............................................
what all do you have done to your engine? what size injectors do you recommend?
 

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Discussion Starter · #9 ·
12.5:1 compression Bps3 cams, rbc with 70mm TB port matched on a restricted apexi world sport muffler. 274whp 202wtq E85. May sell it since now went stock k24a4 rotrex on E85.

I use ID1000cc injectors with a 255hp pump + in line bocsh 044 pump tuned at 75psi
im am going to be running stock compression do you know if that matters?
 

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Discussion Starter · #11 ·
At that time; 12:5:1cr,go power v1r cams, xcessive manifold(too big) with 90mm tb, 3" exhaust, 274whp, 204wtq, E85 using fic 2200cc injectors(went ahead and got those cause i plan to go rotrex later and didnt want to get bigger inj later).

setup has changed a little now:)
thats some nice power your putting down what kind of dyno did you tune on?
damn man thos are some big injectors:wow:
what is your opinion since i would be running stock compression?
 

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Discussion Starter · #13 ·
That has been proven to be a myth, in vehicles made after like 1985. I've had a few friends as well that have ran stock lines/filter for years and have yet to see corrosion from E85.


Here is a little article about different myths and E85
http://www.change2e85.com/servlet/Page?template=Myths
thank you for the link it has a lot of good info:up:
since E85 is 105 octane do you think im going to have trouble cause im running stock compression??
 

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Discussion Starter · #18 ·
You will be OK.
Which engine or what compression?

You could probably get away with modified OEM injectors to 510cc

Most new rubber fuel lines can handle E85. Old prior 1990 not.

E85 has it's advantages & disadvantages:

Burns about 200°F cooler than pump gas so your engine runs cooler
your engine gets internally cleaner
It requires about 20%~30% more volume
you may take advantage of it's 105 octane & cooler burn by leaning it a little more at idle or cruise to gain a little MPG
it attracts water so gotta be careful storing the car on really high compression on boosted engines.
about $0.50 cheaper than 87 octane pump gas in many states.
really hard or far to get in many areas.
your travel distance gets shortened per fuel tank.
made in the USA so we support local jobs.
makes good power but gotta see if it's something you willing to get into after looking at the +&- it comes with.
aem ecu allows you to switch, mix on the fly from E85 or pump gas. Like a true flex-fuel GM Car does. By adding a ethanol fuel mixture sensor.
i have a set of 550cc DEKA injectors i was thinking to sell them and get a set of 1000cc if i go E85 witch i am sure im going to:D
i have a k20z1 running stock compression with IPS k2-11 cams intake manifold 75mm TB and going to be running Kpro. how is running E85 with Kpro?
 

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Discussion Starter · #23 ·
This thread is even more informative than the "myths" thread :rolleyes:

So can you switch from e85 to gas with kpro as well. Say by loading a different tune save on kpro with you laptop or will it require more work than that.

Also whats the correct procedure to switch from gas to e85?

For example:

Have your setup ready(injectors, fuel pump, kpro/aem,etc)
Use almost all your gas just to have enough to make it to a e-85 station
Get to a e-85 station
Fill the tank
Drive to a tuner or if you know how to tune have your laptop ready
Tune
Done:confused:
these were almost my exact same questions i was just about to ask but you beat me to it :up:
whoever is tuned on E85 are you also tuned on pump gas??
cause i have a E85 pump a little less than an hour away from my house and my older brother has a 250 gallon VP racing pump so im going to put that on the side of my house for me and my friend to use:D
i wonder if i should even do a pump gas tune???
 

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Discussion Starter · #25 ·
What I did:

Upgraded injectors and fuel pump (already have KPRO)
Had an e85 base tune ready to go (I wouldn't drive on e85 untuned at all)
Went to fill up a 5 gallon gas tank with e85
Drained my gas tank (sucks to do in a DC5 b/c it needs to be siphoned out)
Poured e85 in started it up
Tuned
Done
what size injectors and fuel pump did you use?
 

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Discussion Starter · #28 ·
yes u can have a e85 tune and a pump gas tune in k pro. just make sure you have all the fueling componets neccessary to run e85 and ur good to go:up: Oh when on pump MAKE SURE you drain ur tank completely of pump gas before u put e85 into it and vise versa, unless u have them AEM program that allows u to mix.
looks like E85 FTW:cool:
i think im going to tune with E85 and 1 tune on pump gas and see the power difference between the two or just tune on E85 once i get tuned ill share the #'s
thank you for everyone's good information:up:
 
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