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Thread: Reed valve engine exhaust port timing???
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Old 12-15-2014 | 08:55 AM
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mmattockx
 
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Originally Posted by Scota4570
The tops of original transfer ports are at 90" to the side of the jug. That seems like it would not flow well.
Flow is not the issue there, trapping the maximum amount of the intake charge in the cylinder is. Those ports are designed to aim the incoming charge to a specific spot in the cylinder in order the keep it from flowing straight out the exhaust port and hurting BMEP. If you don't have good info on how to reshape the transfers you are better off just leaving them as the OEM designed and tweaking the timing to suit.


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