DetonatorTuning
Active Member
It is not about "pipes" filling up, that is an erroneous notion, it has to do with the time it takes for the (negative) pressure wave to be reflected back to the exhaust port to aid in scavenging,the shorter the pipe the quicker this occurs,which means at higher frequencies,that is at higher rpm.
thank you, but in the case of the 2 stroke doesn't the reversion wave help promote and contain cylinder filling ?
this doesn't sem to help answer the question of what amount of decline in low-midrange shoul dbe expected.
could you explain further please.
thanks,
steve