As TeeZee said EngMod is power at the crankshaft , and the difference from many , many racebike tests is that the DynoJet reads 12 to 15% lower than the crank number due to losses
in the transmission/chain and tyre contact patch - even though its already fudged upwards..
Dont adjust the Combustion Efficiency to fudge the crank number to be lowered to equal to the dyno result.
Take the dyno numbers , add a factor and create an EngMod dyno curve as the comparrison - this is in Post 2T.
Your real CE would lie somewhere between .85 for a low bmep and .95 for a real full house engine build - in a smaller bore high com on good fuel.
Extrude Hone was tested by Kevin Cameron many years ago when it first came onto the market - it lost power in every case with a two stroke.
I think DynoTech magazine found the same result , years ago as well.
Ive got a thing thats unique and new.To prove it I'll have the last laugh on you.Cause instead of one head I got two.And you know two heads are better than one.
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