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Discussion Starter · #1 ·
Ok i traded my raptor for a banshee.And i have this port mapper program and it has all these calculations for blow down,Exhaust,port and transfer durations.Can someone explain please and squish too. If i ever tear it down and change some stuff will i need a degree wheel to get the port timing right.Thanks in advance for your help.
 

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2stroke tuners handbook from gordon jennings explains quite a bit. it deosnt seem to explain blowdown in alot of detail but it does explain what it is. it covers transfer, exhaust and intake alot. im sure theres other books that are worth reading also. books can be your best freind
 
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