E85?

[4cfed]

e85 around here in wi comes out to be like 105 octane... i personaly cant stand it.. the smell discusts me


heres some good info on esearch octane numbers, motor octane numbers and anti knock index

Octane rating - Wikipedia, the free encyclopedia

 

[sicivicdude]

Useful read for understanding how octane numbers are calculated.

Ethanol blend fuel doesn't work in the CFR test method for MON so there are discrepencies as to the octance rating. It's advertised anywhere between 103 and 109 but it's certianly more than hi test (93 octane) gasoline.

Unless you can get race gas for a touch over $4 (using the price of E85 at $3.25), E85 is more economical for anything under 110 octane.

If you're silly enough to build an engine that NEEDS more than 110 octane fuel, you deserve to pay for price for the fuel needed.

 

[4cfed]

Useful read for understanding how octane numbers are calculated.

Ethanol blend fuel doesn't work in the CFR test method for MON so there are discrepencies as to the octance rating. It's advertised anywhere between 103 and 109 but it's certianly more than hi test (93 octane) gasoline.

Unless you can get race gas for a touch over $4 (using the price of E85 at $3.25), E85 is more economical for anything under 110 octane.

If you're silly enough to build an engine that NEEDS more than 110 octane fuel, you deserve to pay for price for the fuel needed.

exactly my built 400ex didnt even need race gas

 

[speed69phreak]

More octane FAQ sheets

racing gas, race cart, race go kart, airplane fuel