Quote:
Originally Posted by Christ
Missed that part. Thanks!
The pipe doesn't have to be that long for harmonics to take effect, and would only need to be that long for ideal pulse scavenging, and then that would also depend on the amount of flow and the speed/density of that flow.
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It means that if there is a muffler within that length, 18 feet in this case, it will damp any pulses. That's what mufflers do.