RE: Evolution 58GX - what RPM's should it turn?
Just following up... I got hold of an Evolution wrap-around Pitts muffler for the 58GX. It's not much quieter than the Bisson but it is a more pleasant low frequency sound... but the BIG plus is it now turns the 23x8 at 7,050 static VS 6,600 on the Bisson! I may have enough to turn that 24x10 after all once it breaks in!