halflight

My Feedback: (5)

looking for a Pitts style muffler for the OS 75AX

will the Bisson muffler for the 65 fit?

help

JohnBuckner

My Feedback: (1)

The exhaust boss bolt pattern and dimension for the OS 65AX, 75AX and 95AX are all identical So the answer to your question should be Yes.

John

landeck

My Feedback: (1)

Yes, it will fit and work fine. I have that combination in my GP RV-4.

Gray Beard

My Feedback: (-1)

John, you know I like the Bisson Pitts type of muffler and don't have the pressure problems some folks have with a Pitts. Do you feel the same about the Bissons as say a slimline or the other plain box with a couple of pipes?

JohnBuckner

My Feedback: (1)

OK keeping this in context for two stroke glow engines that already come with stock type mufflers I prefer to use the stock mufflers over any pitts type.

Now I am not talking about high performance type pipes both full and quarter wave that I do use a lot of for certain type airplanes (mostly racers).

Thats great that your brand works great and I am sure it does But there an awful lot of them out there that do not.

This almost always get involved with the fellows second or third airplane and they just gotta have that muffler completly hidden and that always follow that these same fellows are going to refuse to let the engine cool or even be able to adjust things like needle valves.

Instead I find it better to have them over and spend some quality time with them and a razor saw. Showing them how simple it really is to notch a fire wall and roll a little balsa sheet into a simple tunnel.

The sudden realization of hey that looks great and the engine is gonna run great and I don,t have to spent what 40,60 or more bucks.

Best of all I Don,t like the sound they make expecially when compared to the stock mufflers.

So I guess the answer is nope don,t care for 'em.