Harley Davidson Evolution Compression Ratio

This overhead cam design allowed a more efficient combustion chamber design with a 9-to-1 compression ratio providing a 10 percent power increase over the previous Evolution engine.

Harley davidson evolution compression ratio. Another factor that is affected by cylinder head material is fuel octane. While much of Harleys range is based around the 1340cc 8174ci so-called Big Twin Evolution engine unit the company has produced a unit for the Sportster range based around a unit construction engine. Harley-Davidson may make changes at any time to prices and specifications and may change or discontinue models without notice and without incurring any obligation.

Since no compression builds until after the intake valve closes its the corrected compression ratio that gives the best indication of how pump gas friendly your motor will be. Compression Ratio 971 971 Primary Drive Chain 3857 ratio Chain 3857 ratio Fuel Economy. The latter option is preferred in the burgeoning Flat Track series.

The 883 Evolution engine has a maximum horsepower HP of 46 at 6000 rotations per minute RPM and can reach a top speed of 926 miles per hour MPH. THIS ARE MY HIGH COMPRESSION ISSUES I have gone with wiesco 1051 about 215217 lbs of static compression on the cyls. Premium pump gas in the US.

M 883 CC ENGINE P 1200 CC ENGINE. The Evolution engine on the 1340 model has a compression ratio of 851. There are two displacements available.

Leather-clad warriors are hopping on the bandwagon building Hooligan bikes and pitching a 1200cc engine sideways. It was a bit much compression for the BUILT 95 and flowed- and all the work done to it SHORT LIVED 2000 FXTS TC. Includes 2 forged pistons rings pins and snap rings for Harley Davidson Big Twin Evolution 80ci 1340cc 1984 - 1999.

Inlet Runner Design and Torque Peak Calculator. Harley Davidson. CA XLH 883 CJ HLH 883 Custom CE XLH 883 Hugger CA XLH 1200 CG XL 1200C Custom CH XL 1200S Sport.