E85 conversion
Thread Starter
Teching In
Joined: Sep 2009
Posts: 49
Likes: 0
From: Colorado
E85 conversion Ive looked around a bit on the forums, couldent really find a writeup on what you need with the LS1 to go to E85, anyone got a list?
This is a stock LS1 with the exception of exaust and ram air.
My eclipse basicly required:
Fuel pump (wally 255)
Fuel Pressure Regulator (AEM)
Injectors (750cc RC)
Fuel Rail (cant remember)
Fuel Lines (braided steel)
Piggy back engine management (was on Emanage now on AEM 1930)
Dyno tune
so, what is required for the LS1 to do this conversion?
it was a night and day difference going from 93 octane to E85 in the eclipse, hoping LS1 is the same, plus in the grand sceme of things could be a cheap way to make good power and not waste money if i want to upgrade to supercharge later... id still use these mods.
Thanks for your input,
Ian
This is a stock LS1 with the exception of exaust and ram air.
My eclipse basicly required:
Fuel pump (wally 255)
Fuel Pressure Regulator (AEM)
Injectors (750cc RC)
Fuel Rail (cant remember)
Fuel Lines (braided steel)
Piggy back engine management (was on Emanage now on AEM 1930)
Dyno tune
so, what is required for the LS1 to do this conversion?
it was a night and day difference going from 93 octane to E85 in the eclipse, hoping LS1 is the same, plus in the grand sceme of things could be a cheap way to make good power and not waste money if i want to upgrade to supercharge later... id still use these mods.
Thanks for your input,
Ian
all you need to convert to E85 is injectors, pump, and retune.
Ive looked around a bit on the forums, couldent really find a writeup on what you need with the LS1 to go to E85, anyone got a list?
This is a stock LS1 with the exception of exaust and ram air.
My eclipse basicly required:
Fuel pump (wally 255)
Fuel Pressure Regulator (AEM)
Injectors (750cc RC)
Fuel Rail (cant remember)
Fuel Lines (braided steel)
Piggy back engine management (was on Emanage now on AEM 1930)
Dyno tune
so, what is required for the LS1 to do this conversion?
it was a night and day difference going from 93 octane to E85 in the eclipse, hoping LS1 is the same, plus in the grand sceme of things could be a cheap way to make good power and not waste money if i want to upgrade to supercharge later... id still use these mods.
Thanks for your input,
Ian
This is a stock LS1 with the exception of exaust and ram air.
My eclipse basicly required:
Fuel pump (wally 255)
Fuel Pressure Regulator (AEM)
Injectors (750cc RC)
Fuel Rail (cant remember)
Fuel Lines (braided steel)
Piggy back engine management (was on Emanage now on AEM 1930)
Dyno tune
so, what is required for the LS1 to do this conversion?
it was a night and day difference going from 93 octane to E85 in the eclipse, hoping LS1 is the same, plus in the grand sceme of things could be a cheap way to make good power and not waste money if i want to upgrade to supercharge later... id still use these mods.
Thanks for your input,
Ian
more than likely when your up in that hp range on E85 your going to be running a sumped inline pump or multiple intake pumps. so there for all your stock lines will be steel braided and completely redone. so nothing to worry about. there's a old material they used for o-rings that deteriated with E-85 but on the newer vehicles i havnt seen any problems or heard about any. we have three small block FI cars that are on E85. 2 are over 1000rwhp, and the pro car is around 2200hp
all you need to convert to E85 is injectors, pump, and retune.
all you need to convert to E85 is injectors, pump, and retune.
https://ls1tech.com/forums/fueling-i...r-ls1-e85.html
millerpa is right, bigger injectors, pump & a retune.
to whoever asked about it damaging lines, no ti wont. ethanol is non-corrosive, common misconception. read through that link. its a VERY good read.
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A tune is a must. Injectors are probably all you'll need but I wouldn't swap them until you find you duty cycle after converting. I'm at 442rwhp and still on stock pump with booster and 42# injectors running about 80%. I did not pick up any power with the conversion but I didn't lose any either. Getting ready to add boost to the mix.
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Thread Starter
Teching In
Joined: Sep 2009
Posts: 49
Likes: 0
From: Colorado
ohh second time this happened... guess ima just stop posting questions
Thanks to those who helped, glad to hear this is easier then my ol' ricer
One big help is when you enter your search info make sure you are in advanced search mode and then select sort by relevancy.
They are all right though, simple procedure just remember you need a bit more injector and pump then you would if you were running gasoline.
I am building an 416" LS3 with spray and I will be doing E85 as well. Good way to keep cost and detonation down.
site:ls1tech.com and then whatever words i wanna search and it works great, like it used to lol. the search here has tricks, like using quotes and what not. dont stop posting questions, just make sure you are very thorough before you do, because in a lot of sections, there will be more than 1 thread at a time on the same thing.
TECH Regular
Joined: Jan 2007
Posts: 411
Likes: 1
From: Louisville KY
Done it years ago on ls2. All you need is a tune. The ls2 injectors are #32 and that's enough for the stock power. And its not a wash on power. On ls1gto I posted my dyno charts oem gas vs oem e-85. Was like 15 hp 30 wtq better.
Teching In
Joined: Oct 2015
Posts: 26
Likes: 0
My car is running Texas speed head and their mild cam. 32# injectors and 80mm tb. Long tube headers and 3" exhaist with no cats and magnaflow. Would it be worth converting to e85? Also how would I be able to go about switching from pump to e85 tune on the fly?
TECH Regular
Joined: Jan 2007
Posts: 411
Likes: 1
From: Louisville KY
TECH Regular
Joined: Jan 2007
Posts: 411
Likes: 1
From: Louisville KY
Actually switching your tune on the fly is asking to much of an oem ECM. It can be done with an ECM that accepts input from a fuel content sensor but all that isn't necessary.
Since you're not FI all u need to do is set afr to 12.2. If u can't do that you could raise the fuel pressure 15%
The ecm can adjust the afr up or down, from 12.2, enough to compensate for which ever fuel you are using via the oxygen sensors.
This is what I'm currently doing on my ls3
Since you're not FI all u need to do is set afr to 12.2. If u can't do that you could raise the fuel pressure 15%
The ecm can adjust the afr up or down, from 12.2, enough to compensate for which ever fuel you are using via the oxygen sensors.
This is what I'm currently doing on my ls3
