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Compression vs mpg ??

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Old 02-05-2013, 04:10 AM
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I read it all and that's my understanding too but I don't have a good source of e85 every where I go. There is one local station here that has it but its out of my way. And being navy I can't be for sure where I will go next and if they will have e85. But 93 octane has been everywhere I have been and good ole -20 windshield washer fluid has too. So I figure I should be able to rock 10:1 and the boost I love with 93 and meth Injection.
Old 02-05-2013, 08:20 AM
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Looked up boost LS2 setups, they run 11:1 and seem to be snappy as hell. Also ought to give you some tuning insight.
Old 02-05-2013, 09:11 AM
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I would love a fast truck that still got decent mileage. I get a touch above 12 in the city and 15 on the highway on 93. I'm still on MAF so I can't do lean cruise. On E85 though, I'm at 9 city and 13 highway, I can watch my gas gauge drop when I get on the gas but it does feel much stronger.

I noticed a 1-2 mpg drop when I put catless headers on.
Old 02-05-2013, 04:04 PM
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Originally Posted by 1slow01Z71
Looked up boost LS2 setups, they run 11:1 and seem to be snappy as hell. Also ought to give you some tuning insight.

Is that running just 93 octane? That would be pretty cool to get into the 11s with that.
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