Quote:
Originally Posted by evan
You can alter the piston on 2-smokes to play w/ the concepts. A $60 piston miscalculation is better then a $300 cylinder miscalc.
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Unless your running a piston port motor from 1972, theres not a whole lot you can do to a piston in a 2 stroke to effect the port timing.
Everything on a 2 stroke has a resonant frequency, carb, reeds, transfer ports, exhaust port and expansion chamber. Get them wrong and you will have a sluggish pig. Get them all working in the same RPM range and you will have a lightswich motor that will be no fun to drive.
If you really want to get a good idea of what's going on, get copy of 2 stroke performance tuning by A graham Bell and read it.