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DannoXYZ · February 22nd, 2019, 04:18 PM

Yep, E85 is about 108 octane and actually out-performs 110-octane race-gas I get at Sears Point raceway down the street. Most likely due to the cooler running to avoid detonation. Yeah, on NA engine, you have to tune to get extra power such increasing compression and advancing timing. Using in stock Ninja 250, won't get much gains.

I can actually run 13.0:1 compression on 100-bore NA engine with E85. Or 25psi with boost.

February 22nd, 2019, 04:18 PM	#203
DannoXYZ ninjette.org certified postwhore Name: AKA JacRyann Location: Mesa, AZ Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot. MOTY - 2018, MOTM - Nov '17	Yep, E85 is about 108 octane and actually out-performs 110-octane race-gas I get at Sears Point raceway down the street. Most likely due to the cooler running to avoid detonation. Yeah, on NA engine, you have to tune to get extra power such increasing compression and advancing timing. Using in stock Ninja 250, won't get much gains. I can actually run 13.0:1 compression on 100-bore NA engine with E85. Or 25psi with boost.