E85 + tuned for 93 octane = boom?
Update. Please don't assume I didn't have a clue to what E85 is and just decided to fill up on it to save money. I know gasoline has more energy than alcohol which is why you would get less mileage due to more ethanol being needed for proper combustion. I was assuming the ecu would add more fuel and my gas mileage would just suffer. Why even put E85 in you ask? I thought it was like race gas where you just fill up and turn up the boost. Where did I get this idea? I read that ethanol is 105 octane. Bad idea to say at the very least. What's going on with the car right now? I drove it on the highway for awhile and after that filled up with V-power. It's roughly half e85 and half premium gas. I will continue to take it easy until I can get rid it and reset the ecu after that. Thanks to all who actually had something helpful to say.
I do my best to refrain from being condescending, but I am sorry, this is just too severe of a blunder to keep myself contained.
Self-Serve Fuel Lesson for Dummies #001:
If your car is designed to utilize unleaded gasoline, filling it with E85, diesel, biodiesel, kerosene, or water may result in serious engine damage.
Ok, carry on . . .
Self-Serve Fuel Lesson for Dummies #001:
If your car is designed to utilize unleaded gasoline, filling it with E85, diesel, biodiesel, kerosene, or water may result in serious engine damage.
Ok, carry on . . .
If you truly had a "clue" about E85 then you wouldn't have put it in your car without a tune and supporting mods. In your research, you should have discovered that it IS NOT just like race gas and your EVO needs to be tuned for it. I hope you can get your car back right, though.
Update. Please don't assume I didn't have a clue to what E85 is and just decided to fill up on it to save money. I know gasoline has more energy than alcohol which is why you would get less mileage due to more ethanol being needed for proper combustion. I was assuming the ecu would add more fuel and my gas mileage would just suffer. Why even put E85 in you ask? I thought it was like race gas where you just fill up and turn up the boost. Where did I get this idea? I read that ethanol is 105 octane. Bad idea to say at the very least. What's going on with the car right now? I drove it on the highway for awhile and after that filled up with V-power. It's roughly half e85 and half premium gas. I will continue to take it easy until I can get rid it and reset the ecu after that. Thanks to all who actually had something helpful to say.
Our ECU will add more fuel, but only at idle and very low load. BMW 335i on the other hand i think operates in closed loop under boost, so i bet you can fill'er up with E85 and step on it!
Last edited by mplspilot; Oct 19, 2007 at 09:02 AM.
Evolving Member
Joined: Dec 2005
Posts: 251
Likes: 0
From: Connecticut
Update. Please don't assume I didn't have a clue to what E85 is and just decided to fill up on it to save money. I know gasoline has more energy than alcohol which is why you would get less mileage due to more ethanol being needed for proper combustion. I was assuming the ecu would add more fuel and my gas mileage would just suffer. Why even put E85 in you ask? I thought it was like race gas where you just fill up and turn up the boost. Where did I get this idea? I read that ethanol is 105 octane. Bad idea to say at the very least. What's going on with the car right now? I drove it on the highway for awhile and after that filled up with V-power. It's roughly half e85 and half premium gas. I will continue to take it easy until I can get rid it and reset the ecu after that. Thanks to all who actually had something helpful to say.
-Chris
[QUOTE=bluebanana23;4866788] I thought it was like race gas where you just fill up and turn up the boost. Where did I get this idea? I read that ethanol is 105 octane. You THOUGHT it was LIKE race gas..
Basically, you didnt' have a clue.
My stomach contains acidic juice, so I figure I can drink acid and still be okay.
Ignorance can let you do all sorts of brave things.
I do my best to refrain from being condescending, but I am sorry, this is just too severe of a blunder to keep myself contained.
Self-Serve Fuel Lesson for Dummies #001:
If your car is designed to utilize unleaded gasoline, filling it with E85, diesel, biodiesel, kerosene, or water may result in serious engine damage.
Ok, carry on . . .
Self-Serve Fuel Lesson for Dummies #001:
If your car is designed to utilize unleaded gasoline, filling it with E85, diesel, biodiesel, kerosene, or water may result in serious engine damage.
Ok, carry on . . .
+1.
(you have no idea how much i'm biting my tongue right now.........)
In all honesty.....
If you reduce the size of your injectors in the ECU to something like ...... 325 and lean out the fuel table from 100-300 with something like 11.8 you should be fine to boost 20psi on 100% E85. You can toss another 5-8* of timing in the high loads as well.
I can post a ROM for you if you would like.
If you reduce the size of your injectors in the ECU to something like ...... 325 and lean out the fuel table from 100-300 with something like 11.8 you should be fine to boost 20psi on 100% E85. You can toss another 5-8* of timing in the high loads as well.
I can post a ROM for you if you would like.
In all honesty.....
If you reduce the size of your injectors in the ECU to something like ...... 325 and lean out the fuel table from 100-300 with something like 11.8 you should be fine to boost 20psi on 100% E85. You can toss another 5-8* of timing in the high loads as well.
I can post a ROM for you if you would like.
If you reduce the size of your injectors in the ECU to something like ...... 325 and lean out the fuel table from 100-300 with something like 11.8 you should be fine to boost 20psi on 100% E85. You can toss another 5-8* of timing in the high loads as well.
I can post a ROM for you if you would like.
Evolving Member
Joined: Dec 2005
Posts: 251
Likes: 0
From: Connecticut
dont u have to change the fuel lines.. coz as far as i know E85 is corrosive.. & is it true that u have to change the engine oil to a dif weight.. i think i read something like that on www.e85fuel.com.
^^ Correct. The stock fuel map is too rich for E85. Instead of 8.5 you should be around 12.5 with the stock injectors.