E85 and EFI
Thread Starter
Racer
Joined: Jul 2012
Posts: 465
Likes: 13
From: Grand Rapids Mi
E85 and EFI
I apologize if there is a thread already started about this but don't see one. Anyway I was wondering if anyone is running E85 and and Sniper EfI kit. Have the one that is rated up 650hp. Any help would be greatly appreciated.
Drifting
Joined: Oct 2012
Posts: 1,524
Likes: 61
From: Medina Ohio
Race Director
Joined: Jul 2004
Posts: 12,692
Likes: 329
From: Scottsdale Arizona
Good question. As the name suggests, the O2 sensor measures unused oxygen in the exhaust so the sensor should work fine. I don’t think it will mistake the ethanol OH group for O2. The software that adjusts mixture will have to adjust to the fuel though. I wonder if there is a different setting or curve used for E85.
Safety Car
Joined: Aug 2000
Posts: 3,909
Likes: 26
From: Clymer PA
Ibanez540r:
You lose 25-30% horsepower on E85? That for some reason sounds wrong to me. I do understand you may lose a little horsepower due to the decrease in thermal efficiency with E85 but I didn't think it would be that much. I thought the 25-30 percent dealt more with the increase in fuel flow that would be required over gasoline?
You lose 25-30% horsepower on E85? That for some reason sounds wrong to me. I do understand you may lose a little horsepower due to the decrease in thermal efficiency with E85 but I didn't think it would be that much. I thought the 25-30 percent dealt more with the increase in fuel flow that would be required over gasoline?
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Pro
Joined: Jun 2014
Posts: 706
Likes: 294
From: New Jersey
The e85 will make more power that gas, but you need much more of it.
The amount of fuel is the limiting factor
That's why a "carb" that maxes out on fuel flow and makes 650 HP on gas, will make less on E85 when it maxes out of fuel flow.
The amount of fuel is the limiting factor
That's why a "carb" that maxes out on fuel flow and makes 650 HP on gas, will make less on E85 when it maxes out of fuel flow.
Burning Brakes
Joined: Jul 2016
Posts: 767
Likes: 74
From: Blaine MN
I'm not familiar with the sniper (mine is accel DFI), you either need a flex fuel sensor or two fuel/timing maps if you plan to run both gas and e85. If you are only running e85 the earlier replies that covered more fuel (gph) flow is correct. You should also look at the injector duty cycle carefully, an injector that is fine for gas may be maxed out using e85. I'll be following to see how itr works out.