Two is good but kind of bulky. 1.75" is probably
more practical.
Racing Beat has flanges for 2nd and third gen
engines.
32 inches in the optimum merge length for about 6500
RPM.

Paul Lamar ...No rotor no motor.


*I have the original header from Racing Beat, but
need to know what
merge length would be optimum for 7500-9000RPM?
Thanks!

Tim Tracy

6500/[RPM you want] X 32 = length.

27 inches for 8500.

Paul Lamar ...No rotor no motor.

Paul,

Does the optimal length prior to collector change if
you have a 3 rotor engine? If you kept the exhaust
tubes isolated, any change in optimal length for ~
6500 rpm

Racing beat sells 3" ID stainless exhaust flanges
(individual) for 17 bucks. They also have 2" opening
flanges and for the 3-rotor, and a 3 opening flange
plate.

Does anyone have experience with Burns stainless
ceramic mufflers in rotary applications?

Thanks, Eric

Three rotors fire 120 degrees apart so it is impossible
to tune them with collectors. You just need to leave
the individual pipes open. The lengths are the same as the
two rotor. The dynamic chamber intake
also does not work for the same reason.

I don't know of anybody that has tried the Burns
ceramic mufflers.

Paul Lamar ...No rotor no motor.

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