E85 Fuel

YHW · July 17th, 2009, 05:48 AM

Hi just wondering if anyone has been tuning E85 fuel, has it been worth while, big HP improvements, and is it simple to tune?

underpsi68 · July 17th, 2009, 10:57 PM

I have been using E85 for the last 6 months and would hate to go back to pump gas. My motor runs cooler and I can run more boost without waving to worry about detontation.

You tune it the same way as you would gas. It will probably want a different timing curve though. On my setup it wanted less timing while running E85. I could add more timing without detonating but my motor did not make anymore power.

YHW · July 18th, 2009, 09:40 AM

Sounds like good stuff. Thanks

charlievoviii · July 18th, 2009, 08:19 PM

e85 is equivalent to tuning 110 octane about. It clean out your engine, alcohol will burn away carbs. the only downside is that it burn way to fast.

supercharger · July 26th, 2009, 10:44 PM

last time i run E85 my engine whas nothing like with pumpgas it felt stronger and it whas smother easier to map though , and when it comes to boost it pulled like a dream and betterthan whith pumpgas 98/99 okt. but one issue after all whas when i pulled out my injectors it whas not a pretty sight if you looked down the intake streem in the heads and the valveshaft it whas really clogged and alot of something like black rubber feeling compound , and even on the injectors not inside them but outside where you have the 6 whole rotating disc delhpi 744 , the whole fuelsystem whas new from tank to injectors . so i dont think im to sure about E85 any moore until i know what caused that.

charlievoviii · July 28th, 2009, 04:13 AM

Quote:

Originally Posted by supercharger

last time i run E85 my engine whas nothing like with pumpgas it felt stronger and it whas smother easier to map though , and when it comes to boost it pulled like a dream and betterthan whith pumpgas 98/99 okt. but one issue after all whas when i pulled out my injectors it whas not a pretty sight if you looked down the intake streem in the heads and the valveshaft it whas really clogged and alot of something like black rubber feeling compound , and even on the injectors not inside them but outside where you have the 6 whole rotating disc delhpi 744 , the whole fuelsystem whas new from tank to injectors . so i dont think im to sure about E85 any moore until i know what caused that.

it's cleaning the carb out. Plus from what u are saying, i hardly doubt it was from e85 and I'm willing to bet on it.

supercharger · July 29th, 2009, 01:00 AM

So is there maby some cind of a total clean up from my fueltank that could caused the *clogging* rubber feeling thing. is there any body else out there that maby hade the same cind of trubbel i did.?

underpsi68 · July 29th, 2009, 01:44 AM

Yes E85 is a SUPER detergent. It will clean EVERYTHING!!!. You should check/change your fuel filter a few times at first if you have an older setup. It could also be that your lines/carb/pump is not compatible with the E85.

I have checked my filters a few times since I switched over but everything still looks great. I even took apart my fuel rails last most to check on the bare aluminum. E85 can play havoc on certain lines/metals.

supercharger · July 29th, 2009, 12:13 PM

ookay is that so , thing is i whant to get back to E85 again but im little scarrie about the last i told you about, so lets say i use stainless steel fuelfilter from ex fuelab running bosch 044 fp copper fuellines and i allso use hard anodized fuelrails as well this must be rather safe dont you think.

July 17th, 2009, 05:48 AM	#1
YHW Junior Member Join Date: Sep 2008 Posts: 12	E85 Fuel Hi just wondering if anyone has been tuning E85 fuel, has it been worth while, big HP improvements, and is it simple to tune?

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July 17th, 2009, 10:57 PM	#2
underpsi68 Senior Member Join Date: Jun 2008 Location: The Big Apple Posts: 182	I have been using E85 for the last 6 months and would hate to go back to pump gas. My motor runs cooler and I can run more boost without waving to worry about detontation. You tune it the same way as you would gas. It will probably want a different timing curve though. On my setup it wanted less timing while running E85. I could add more timing without detonating but my motor did not make anymore power.

July 18th, 2009, 09:40 AM	#3
YHW Junior Member Join Date: Sep 2008 Posts: 12	Sounds like good stuff. Thanks

July 18th, 2009, 08:19 PM	#4
charlievoviii Senior Member Join Date: Feb 2008 Posts: 149	e85 is equivalent to tuning 110 octane about. It clean out your engine, alcohol will burn away carbs. the only downside is that it burn way to fast.

July 26th, 2009, 10:44 PM	#5
supercharger Member Join Date: Feb 2008 Location: Sweden Posts: 85	last time i run E85 my engine whas nothing like with pumpgas it felt stronger and it whas smother easier to map though , and when it comes to boost it pulled like a dream and betterthan whith pumpgas 98/99 okt. but one issue after all whas when i pulled out my injectors it whas not a pretty sight if you looked down the intake streem in the heads and the valveshaft it whas really clogged and alot of something like black rubber feeling compound , and even on the injectors not inside them but outside where you have the 6 whole rotating disc delhpi 744 , the whole fuelsystem whas new from tank to injectors . so i dont think im to sure about E85 any moore until i know what caused that.

July 29th, 2009, 01:00 AM	#7
supercharger Member Join Date: Feb 2008 Location: Sweden Posts: 85	So is there maby some cind of a total clean up from my fueltank that could caused the clogging rubber feeling thing. is there any body else out there that maby hade the same cind of trubbel i did.?

July 29th, 2009, 01:44 AM	#8
underpsi68 Senior Member Join Date: Jun 2008 Location: The Big Apple Posts: 182	Yes E85 is a SUPER detergent. It will clean EVERYTHING!!!. You should check/change your fuel filter a few times at first if you have an older setup. It could also be that your lines/carb/pump is not compatible with the E85. I have checked my filters a few times since I switched over but everything still looks great. I even took apart my fuel rails last most to check on the bare aluminum. E85 can play havoc on certain lines/metals.

July 29th, 2009, 12:13 PM	#9
supercharger Member Join Date: Feb 2008 Location: Sweden Posts: 85	ookay is that so , thing is i whant to get back to E85 again but im little scarrie about the last i told you about, so lets say i use stainless steel fuelfilter from ex fuelab running bosch 044 fp copper fuellines and i allso use hard anodized fuelrails as well this must be rather safe dont you think.