how about this my friend
i used to have a yamaha motorbike (2 stroke) now the major power came from the "powerband" where the exhaust couldnt let out all the fumes at high revs some of it got pushed back to the engine and depending how big your port hole was you got unbelivable tourue but the problem was you either went crazy fast or silly slow no mid so the clever japs invented a powervalve so at low revs the valve made the port hole small and as the revs built up it opened up creating smooth power all round
so my clever friend would this work on a nitro engine and would it benifit



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what this space supercharge nonbelivers as soon as my mate back from holiday i will video a race between a siro 27 (2.9hp) and my k4.6 (2.9hp)supercharge both with the same spur/clutchbell gearing so i can show you the real matrix