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05-14-2009, 02:47 PM | #1 |
Scooby Newbie
Member#: 173774
Join Date: Mar 2008
Chapter/Region:
Tri-State
Location: Upstate NY
Vehicle:2008 STi Lightning Red |
Newb to E-85, what is needed to run ethanol?
First, the obligatory apology for asking something that may have been covered ad nauseum.
Ok, a quick google maps search reveals quite a few E-85 stations in my area. I'm quite surprised it is this prevalant (Albany, NY region). I know the general pros/cons of running it, and understand the basics. But I'm still a bit unclear what would be required to run say, a stage 2 08 STi on E-85. I know our injectors and pump a slightly uprated from 07 and prior, but enough to support E-85 fueling? Ideally I would have 2 maps at my disposal, a 93 octane and an e-85. And for those who do/have used e-85 to make modest stage 2 type power... is it worth the effort?
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05-14-2009, 03:23 PM | #2 |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
Rescale your injectors by flow*.66, probably need to adjust tip-in as well.
You'll require about 20-30% more fuel, which means 650-700cc or larger for a stage 2 STi, which means no stock injectors. A walbro 255 would be fine for stage 2. |
05-14-2009, 03:28 PM | #3 |
Big Ron
Super Moderator Member#: 18062
Join Date: Apr 2002
Chapter/Region:
MAIC
Location: I can save you a ton of cash
Vehicle:on car parts so PM me b4 j00 buy |
http://forums.nasioc.com/forums/showthread.php?t=803341
Please search next time. Is it worth it? We really don't know as that's a personal opinion and those will run the gamut from OMFGBBQ YES!!! to you'll put your eye out. |
05-14-2009, 03:29 PM | #4 |
Scooby Specialist
Member#: 159454
Join Date: Sep 2007
Chapter/Region:
SWIC
Location: Mesa
Vehicle:2006 WRX CGM 6SPD Cornfed GT30R |
I'll be running a 3076 .82 and plan on e85. I have the bosch 1000cc's. With the fuel pump controller on my car, what options do I have when the walbro can't supply enough fuel?
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05-14-2009, 03:32 PM | #5 |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
Look into the Buschur dual pump setup
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05-14-2009, 05:25 PM | #6 |
Scooby Specialist
Member#: 90436
Join Date: Jul 2005
Chapter/Region:
SCIC
Location: LA, CA
Vehicle:2005 STI Obsidian black pearl |
man that e85 faq is old, information from 2005 and most recent from mid 2008.
From what I saw in the faq thread you only need larger injectors and a re-tune to run e-85, no other modifications neccessary. |
05-14-2009, 05:54 PM | #7 | |
Scooby Specialist
Member#: 33458
Join Date: Feb 2003
Chapter/Region:
Tri-State
Location: PA
Vehicle:Your BOV sounds lame 93 RX7+09 Forester |
Quote:
The pain in the ass part is wiring up the fuel pump...anyway, go to Built Motor Discussion and read about it. That should answer all questions. http://forums.nasioc.com/forums/show....php?t=1754552 http://forums.nasioc.com/forums/show....php?t=1702099 |
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