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Old 07-11-2008, 11:39 AM   #9 (permalink)
compdoc777
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Don't trust the information. E85 you only need to tune for the fuel. Does not take high compression. What do you think the turbo does? The turbo compresses the intake charge so turbo applications get more power.

Example: On my Supercharged RSX Type S we ran 301 whp with regular fuel. Then tuned with E85 and ran 320 whp. Now the compression on the RSX is 11:1 so that would be higher compression, but most cars today run a higher compression ratio.

Notably one will either need a canned E85 tune or a programmable ECU like I have on the RSX to do this, but any OBDII car can be tuned to run E85.

The gas mileage does go down, but then again you are not paying more for gas are you.
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