RPM's......How much is too much after muffler mod????

[Jimmy in NC]

Was that some of the. Guys from down here jimmy? I know of a couple 26's down here with expansion chambers that throw wild numbers. And I ran a 046 like that a while back.

Loco

It was at the VA GTG and the Halifax Heritage Festival.




Jimmy

 

[tdi-rick]

Make it fat wide open no load, and then make sure it cleans up under load.
Most muffler mods I have running 12.8K-13.2K rpms.

I shudder hearing a two stroke lean screaming at WOT/no load.

It just makes my blood run cold.

 

[B Harrison]

That's the RPMs where it's HP rating is, not max RPMs.

Those are listed as max rpm's, which is why I said it was an odd number 9000 and 9600. Maybe a misprint. Most of those ranchers run about the same from what I have run.