Actually closer 30% enrichment from what I have seen and its rated at 105 I believe. BUT it has a larger max power rich and max power lean window so you can run safely from about ~9.5-12.5AFR on a gas calibrated wideband and still make decent power..With such good cyl temp. cooling properties people are running as high as 13 afr's but the gain is not even all that much.
Those are just some of the benifits not to mention the inside of my exhaust tip is bling bling, no more noxious exhaust odor, and it comes from a renewable rescource..
Please no posts complaining about food for the poor going to make ethanol, it is simply not true, just a heads up
Quote:
Originally Posted by SovXietday
E85. Pretty simple. 85% ethanol, 15% 87 octane. Octane rating, 104. Price is relatively low too. Basically, the **** is straight up cheap race gas that burns cooler than race gas.
Due to ethanol's burning properties, in order to produce the same amount of power you will need more volume of fuel. General consensus is about 15-20% more fuel. If you have a standard wideband, you can tune to gasoline AFRs because of the way the wideband interprets it's readings.
Because of the octane rating those of you with adjustable timing can also add more to make more power. In other words, you will need to tune for the fuel just like everything else. I personally wouldn't just swap to E85 with a fuel change, the considerably higher octane will need to be accounted for as well otherwise you're really just losing power. Yes, you can run more boost with E85... but you need to tune the car still.
There's a 7xxwhp hatch on this website who's using it.
Hope that answers all the questions.
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