E47
12-10-2012, 05:09 PM
#26
Theres a couple guys out here who run it 100% of the time, but we are at 5500 ft above sea level. Its a pain to cold start, takes a few times to actually crank then it runs like **** till its warmed up. Thats why I want to wait for summer. E47 wouldn't be too bad but I dont want to mix fuels.
12-10-2012, 05:15 PM
#28
12-10-2012, 06:21 PM
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12-10-2012, 07:46 PM
#36
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I love me some full E85. 
I live at 6000ft above sea level though. The lowest elevation I've taken my car to on full E85 is about 5000ft.
The reason you can get away with full E85 at high altitude is because of the thin air. Less air = less power = less required fuel. My best trap on E85 is 110.5mph with a density altitude of 8600ft. If you correct that to sea level with good weather, it's about 116mph. So theorethically, if you brought some of the fastests stock turbo Cobalts to my altitude and I raced them, it would be a pretty damn close race from a roll.
I live at 6000ft above sea level though. The lowest elevation I've taken my car to on full E85 is about 5000ft. The reason you can get away with full E85 at high altitude is because of the thin air. Less air = less power = less required fuel. My best trap on E85 is 110.5mph with a density altitude of 8600ft. If you correct that to sea level with good weather, it's about 116mph. So theorethically, if you brought some of the fastests stock turbo Cobalts to my altitude and I raced them, it would be a pretty damn close race from a roll.
12-10-2012, 07:49 PM
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Theres a couple guys out here who run it 100% of the time, but we are at 5500 ft above sea level. Its a pain to cold start, takes a few times to actually crank then it runs like **** till its warmed up. Thats why I want to wait for summer. E47 wouldn't be too bad but I dont want to mix fuels.
or do they??
12-10-2012, 10:32 PM
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12-10-2012, 10:40 PM
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If you live in Colorado, yes, actually the state will pay for you to modify your car to run E85.
E-85 Conversion: How to get up to $18k back - CRN: Colorado Racing Network
E-85 Conversion: How to get up to $18k back - CRN: Colorado Racing Network
12-11-2012, 09:59 PM
#49
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I've been running E47 for about a year, now. I recently switched back to a 93 octane Trifecta tune so that my wife could drive it while her car is at the shop. The E47 definitely screams compared to the gas-tune, but it sure is a pain in the ass. I'm deciding whether or not it's worth it.
12-11-2012, 10:57 PM
#50
I've been running E47 for about a year, now. I recently switched back to a 93 octane Trifecta tune so that my wife could drive it while her car is at the shop. The E47 definitely screams compared to the gas-tune, but it sure is a pain in the ass. I'm deciding whether or not it's worth it.
How is it a pain in the ass...
For us, because we can tune for it, the E85 pump should be relabeled, Hi-Octane Racing Fuel.
Good for 30-35HP...
I drive up to one pump, swipe the CC, put in 6 gallons, then go to the other pump, swipe the CC, put in 6 gallons, & I'm done... Maybe less than 5 minutes more to tank...
Guys have been putting in racing gas, since cars have been made...