Hi guys,

The race crankshafts that are availble from diffrent vendors, which have longer intake duration, are theese meant to be used in a standard crankcase where the duration of the inlet is not that big? Or will they work fine a Polini SE aswell?

Would this be a bad setup, regarding using a race crank, will I be better off performance wise using a standard crankshaft? Or perhaps a standard crankcase with a race crankshaft?..
– Polini SE
– AMT004 / race crankshaft with longer duration
– DR evo 43mm
– 13/13mm

My side inlet inner rotor ignition engine is more of a never ending project, and will probably only use it for cruising once in a while, if it ever gets finnished 😀 …
I need a more realiable daily setup with some power to commute with, something “our of the box” 😀 Hence the topic..