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      04-11-2013, 04:28 PM   #340
tdizzle
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Quote:
Originally Posted by RollingLower42 View Post
Interesting, I feel when I use a mix of 100 Octane race fuel mixed with regular 91, feel the most power.

When I use a mixture of E85 with 91, it feels slower and not as fast as the 100 octane..Still quicker than stock, but still not as good as the 100 octane.. why is this?
Hmmm. The tune needs to utilize E85 to get the most use out of it. I'm sure there is a map that takes full advantage of it (guessing 2 on the N55 F30). That said, pants dyno's can be off. I know the biggest actual dyno performers the JB4 crew has put out usually use E85.

In theory, the same E85 mix you referred to should put more power down than the 100oct mix but it won't be that much more, I'd suspect they'd be pretty close (93 alone vs a E85 mix is a difference of about 15 hp). This may be better directed to the tuning experts though. I bet someone from BMS or someone on their board can give you a better answer.

Last edited by tdizzle; 04-11-2013 at 04:41 PM..
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