with the 13:1 piston for the 450 will you need to run race gas?

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Jun 21, 2003 | 03:49 PM

YFZRacer

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with the 13:1 piston for the 450 will you need to run race gas?

i know that the 11.9:1 you run premium but with 13:1 would you run race gas or a mix maby?

Jun 21, 2003 | 03:57 PM

RAPTORAZ

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with the 13:1 piston for the 450 will you need to run race gas?

110 octane race gas or alcohol. 11.9:1 compression is already pushing the limit for 92 octane fuel.

Jun 21, 2003 | 03:57 PM

scramblered

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with the 13:1 piston for the 450 will you need to run race gas?

13.1 ratio is for higher alt.,around 98 or more octane gas for sure,14.1 is for 104 race gas...

Jun 21, 2003 | 06:10 PM

Trx440

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From: Kansas

with the 13:1 piston for the 450 will you need to run race gas?

Scramblered,

Are those calculations based on French Canadian gas?

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