Hi,
I have a Hangar 9 sundowner and I'm going to install an OS 55AX in it. I would like to have some extra rpm from the engine and so I planned to install a Jett muffler on it, instead of the standard muffler the engine comes with.
I'm also going to have the muffler installed inside the canopy / inside the fuselage, similarly as done with this SD.
http://www.jettengineering.com/sundowner.html
So my question is; Which tuned muffler would you recommend to be installed to the 55AX as it's installed inside the fuselage into the sundowner, similarly as in the link above? Oh, and I guess I need a spacer too to get the muffler installed nicely? I didn't find any specifications on the rpm range for the jett mufflers, neither I found any size specs for them.
The RPM at the end should be something starting from 13000 and higher.