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

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Old 06-21-2003, 03:49 PM
YFZRacer's Avatar
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Default 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?
 
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Old 06-21-2003, 03:57 PM
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Default 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.
 
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Old 06-21-2003, 03:57 PM
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Default 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...



 
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Old 06-21-2003, 06:10 PM
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Default 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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