[pete]

Originally Posted by jimjr21

Making a stroker crank is easy. Just go to a smaller crank pin diameter. However that is also a way to make it less reliable.
I will be looking for a reliable way to make a stroker crank. However it needs to be 3+mm or no go as power gain would be minimal for an expensive assembly.

How dose going to a smaller crank pin diameter increass the stroke ?
Stoke is the centre line of the crank pin & main journal X2
the Dia of either has no bearing on the stoke..
to increass the stroke you have to move the centre line of them
ferther apart...