e85 for FI
Guest
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e85 for FI
Is anyone doing this sucessfully here? I have my eingine out of the the 427 build and just realized there is a fuel station accross the streetf that sells e85. Seems like the perfect time to make the change over - if the benefit outweighs the cost.
Racer
Joined: Jan 2008
Posts: 285
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From: Boca raton Florida
Guest
Posts: n/a
e85 is actually $0.50 less than super here, but you have to inject about 33% more fuel because the AFR is much lower with ethanol. I would expect to need larger injectors than my 60#'ers, but not sure what else needs to be changed. I would imagine it would produce power inline with running strait meth, which is very cheap HP in my book.
Drifting
Joined: Sep 2002
Posts: 1,265
Likes: 0
From: Austin Texas
John,
He is my 2 cents on it..
I don't think it is worth it, for example..
my parents have a 2007 tahoe that can run E85, on regualar unleaded they got approx 17-19 miles per gallon average city/hwy.
with the E85 (granted its cheaper) they would only get 10-12 mpg..
so I think your better off with super and meth injection...
He is my 2 cents on it..
I don't think it is worth it, for example..
my parents have a 2007 tahoe that can run E85, on regualar unleaded they got approx 17-19 miles per gallon average city/hwy.
with the E85 (granted its cheaper) they would only get 10-12 mpg..
so I think your better off with super and meth injection...
aka allbottle¬hrottle
Joined: Jun 2007
Posts: 13,759
Likes: 0
From: Brooklyn New York The DVL and the chicken sleep with the fishes....
St. Jude Donor '08
John,
He is my 2 cents on it..
I don't think it is worth it, for example..
my parents have a 2007 tahoe that can run E85, on regualar unleaded they got approx 17-19 miles per gallon average city/hwy.
with the E85 (granted its cheaper) they would only get 10-12 mpg..
so I think your better off with super and meth injection...
He is my 2 cents on it..
I don't think it is worth it, for example..
my parents have a 2007 tahoe that can run E85, on regualar unleaded they got approx 17-19 miles per gallon average city/hwy.
with the E85 (granted its cheaper) they would only get 10-12 mpg..
so I think your better off with super and meth injection...
Safety Car
Joined: Oct 2001
Posts: 4,945
Likes: 0
From: Dallas/Valley Ranch TEXAS!!!
It's not the octane boost that is the major benefit, it does have a major plus, but... the real reason is for cooling IAT's... just like meth/alky injection... This is my next mod I just have to build a fuel system to support my needs... my 60lb mototrons and current fuel system will not cut it... if you don't mind limited gas stations carrying E85, then GO for it, that is the only draw back i had to consider... but I've excepted it...
Guest
Posts: n/a
I would rather not install / monitor and maintain another system (Methanol injection) and prefered to just mix race fuel with super unleaded. Then I noticed the Ethanol gas pump and started wondering if I could mix or just run straight e85. Mileage is not an issue for as much as I use the car, however the lower AIT's, higher octane, basically free hp/insurance seemed logical.
Last edited by aTX427; Feb 11, 2008 at 03:38 PM.
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Advanced
Joined: Nov 2005
Posts: 52
Likes: 0
From: Hudson IL
There are alot of good reasons to run E85 if your going to run FI. #1 and foremost is the octane. It varies from 110 to 115, so you can run higher boost and more timing with will ultimately yield the same HP and TQ numbers as race gas.
Second is the Latent Heat of Vaporization:
Methanol Ethanol Race Gas
1.17 0.93 0.18
What this means is how much the fuel cools the intake charge temperature when it is injected into the air stream. Now we all know that cooler air makes more HP and we use Methanol as a chemical intercooler. So the fuel that the motor will actually be running on will also cool the IAT's (intake air temperature) to temps close to that of what a alky kit will.
So now all that is left is fuel efficiency. I can tell you from experiance that you can run E85 leaner than 12.5:1 for cruising. I ran E85 on my Evo and my fuel economy only droped 3 MPG with mixed driving. However it does have to run a whole lot richer than gas when your on the power. When tuning for best over all MPG for crusing 13.5:1 seems to work very well and tunning for power you want to aim for 8.4:1.
Second is the Latent Heat of Vaporization:
Methanol Ethanol Race Gas
1.17 0.93 0.18
What this means is how much the fuel cools the intake charge temperature when it is injected into the air stream. Now we all know that cooler air makes more HP and we use Methanol as a chemical intercooler. So the fuel that the motor will actually be running on will also cool the IAT's (intake air temperature) to temps close to that of what a alky kit will.
So now all that is left is fuel efficiency. I can tell you from experiance that you can run E85 leaner than 12.5:1 for cruising. I ran E85 on my Evo and my fuel economy only droped 3 MPG with mixed driving. However it does have to run a whole lot richer than gas when your on the power. When tuning for best over all MPG for crusing 13.5:1 seems to work very well and tunning for power you want to aim for 8.4:1.
Guest
Posts: n/a
I found some injector calulators - most seem to agree that you need 20% more fuel. 60# should be good for 750chp. Racetronix makes 79# high impedance, which should take you to around 1,000chp. Past that you need to go with a low impedance converter. Fuel pump wise, I would think dual Aeromotive Eliminator would get the job done.
Last edited by aTX427; Feb 11, 2008 at 03:38 PM.
Burning Brakes
Joined: Jul 2004
Posts: 755
Likes: 0
From: Mansfield TX
John,
He is my 2 cents on it..
I don't think it is worth it, for example..
my parents have a 2007 tahoe that can run E85, on regualar unleaded they got approx 17-19 miles per gallon average city/hwy.
with the E85 (granted its cheaper) they would only get 10-12 mpg..
so I think your better off with super and meth injection...
He is my 2 cents on it..
I don't think it is worth it, for example..
my parents have a 2007 tahoe that can run E85, on regualar unleaded they got approx 17-19 miles per gallon average city/hwy.
with the E85 (granted its cheaper) they would only get 10-12 mpg..
so I think your better off with super and meth injection...
aka allbottle¬hrottle
Joined: Jun 2007
Posts: 13,759
Likes: 0
From: Brooklyn New York The DVL and the chicken sleep with the fishes....
St. Jude Donor '08
Unlikely but it would be nice - Has anyone actually done the conversion ?
aka allbottle¬hrottle
Joined: Jun 2007
Posts: 13,759
Likes: 0
From: Brooklyn New York The DVL and the chicken sleep with the fishes....
St. Jude Donor '08
Melting Slicks
Joined: Nov 2005
Posts: 2,345
Likes: 2
From: Houston 06 C6 Ysi SC 402 fgd TX
Just some info I found.......Below is from IOWA corn thread about FlexFuel Vehicle(FFV). However, "new" vehicles are made to handle 10% E85, so I don't know what to believe now.....
http://www.iowacorn.org/ethanol/ethanol_5a.html
http://en.wikipedia.org/wiki/E85 a wiki article
http://www.iowacorn.org/ethanol/ethanol_5a.html
http://en.wikipedia.org/wiki/E85 a wiki article
Last edited by drivinfast; Feb 24, 2008 at 04:09 PM.
Safety Car
Joined: Oct 2001
Posts: 4,945
Likes: 0
From: Dallas/Valley Ranch TEXAS!!!
There are a few C6's here in DFDub that have converted to E85 one for 6months and it's a DD... Zero problems have been reported... only mod was larger injectors and tune... I believe there was an article on the D6C project car 2/3 months ago in Vette or a similar mag (not positive on mag but it is a vette only publication), and the owner was/is VERY happy...
I believe there was an article on the D6C project car 2/3 months ago in Vette or a similar mag (not positive on mag but it is a vette only publication), and the owner was/is VERY happy...