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How many miles can you go on a tank of E85?

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Old 06-17-2011, 06:20 PM
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I know you can get a GM flexfuel sensor and wire it a after market ECU! After my exhaust cutout is done I am going to have FLI work on something! Having a LC1 wideband run to my Link ECU so it can adjust AFR. The flexfuel sensor will read the E85 reading and then adjust to that! I'm hoping it will work, then no worries on the tune!
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Old 06-17-2011, 06:40 PM
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Old 06-17-2011, 09:14 PM
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Originally Posted by SeaOfGreen
I know you can get a GM flexfuel sensor and wire it a after market ECU! After my exhaust cutout is done I am going to have FLI work on something! Having a LC1 wideband run to my Link ECU so it can adjust AFR. The flexfuel sensor will read the E85 reading and then adjust to that! I'm hoping it will work, then no worries on the tune!
That would be sweet! Let me know if it can work.
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Old 06-17-2011, 09:17 PM
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Originally Posted by SeaOfGreen
I'm guessing you have a built motor? Wait you got some small 18g that don't make much power, would not be smart to run that much power on a stock motor. Can't compare numbers and say I gained this much power when you jumped 3psi and bumped the timing. I'm saying a true way to compare E85 to 91oct would be to run same PSI and similar timing and compare numbers! When you posted your post it was like 70whp and 90wtq difference. Going to get people excited thinking they are going to get gains like that! If you have a built motor you can do alot, why not try 25psi? I would think that turbo could handle more boost.......
The main benefit to e85 is being able to push timing. You're gonna have to get a tune to run it anyways so you might as well optimize the tune for the fuel... so large gains can be expected...

But yeah.. it would be cool to see a direct comparison. I've been thinking about doing this when I have my motor rebuilt and I don't want to run a crazy set up... been thinking a 16g on a 2.1 L stroker running e85. Nothing crazy. Or even just a vf39 or vf34.

Oh.... and I gotta get you a check dude... You going to BAM? I can pay you now and just wait until BAM to get the battery... or pick it up during my family reunion in a couple weeks.
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Old 06-17-2011, 09:51 PM
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Originally Posted by OneManArmy
The main benefit to e85 is being able to push timing. You're gonna have to get a tune to run it anyways so you might as well optimize the tune for the fuel... so large gains can be expected...

But yeah.. it would be cool to see a direct comparison. I've been thinking about doing this when I have my motor rebuilt and I don't want to run a crazy set up... been thinking a 16g on a 2.1 L stroker running e85. Nothing crazy. Or even just a vf39 or vf34.

Oh.... and I gotta get you a check dude... You going to BAM? I can pay you now and just wait until BAM to get the battery... or pick it up during my family reunion in a couple weeks.
Yah Im running E85, I know my car made 341whp on 18psi on 91oct. On E85 the car made 379whp on 18psi, I'm sure the timing is different! The car is tuned on the safe side because of the stock motor! Once my motor goes will be time for a built Cosworth motor with all the goodies. I'm not sure if I'm going to BAM, hit me up when coming up this way and I will meet yah! I could always meet yah in San Fransico, just let me know!
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Old 06-18-2011, 12:19 AM
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ethanol fuel is about to loose it tax credits. So we shall see what this does to the gas market. They were getting up to 45 cents per gallon credit.
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Old 06-18-2011, 08:23 AM
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^ how do you know this? The price went is going down on e85 where I live.
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Old 06-18-2011, 08:38 AM
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We're in the process of setting up an STI with an ethanol sensor running on an AEM EMS to automatically adjust for ethanol content. Should be fun

-- Ed
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Old 06-18-2011, 08:59 AM
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So you can run both 91 and e85?^^^^^
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Old 06-18-2011, 09:57 AM
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Originally Posted by CaliSuby
So you can run both 91 and e85?^^^^^
It's so that the car can adjust itself to the various E85 mixtures. You are not getting E85 everytime out of the pump. Sometimes it maybe closer to 70, sometimes 80, etc.
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Old 06-18-2011, 09:59 AM
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Oh okay I see. Thanks for clearing that up. Man I really wish the hippies here in Santa Cruz decide to get E85 soon...
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Old 06-18-2011, 10:40 AM
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Originally Posted by EQ Tuning
We're in the process of setting up an STI with an ethanol sensor running on an AEM EMS to automatically adjust for ethanol content. Should be fun

-- Ed
Nice, that's next on my list! What kind of sensor you using?
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Old 06-18-2011, 05:54 PM
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http://deltafarmpress.com/government...nol-tax-credit

http://www.sfgate.com/cgi-bin/blogs/...entry_id=77321

http://abclocal.go.com/kgo/story?sec...ent&id=8197008
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Old 06-18-2011, 05:57 PM
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Originally Posted by EQ Tuning
We're in the process of setting up an STI with an ethanol sensor running on an AEM EMS to automatically adjust for ethanol content. Should be fun

-- Ed
Yes! I will be your next customer. I just need to get some money haha
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Old 06-18-2011, 06:07 PM
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Who cares, it's not going to poof of the earth! Easy to just buy a 55gallon drum!
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