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Engine basics => Engine set up tips => Topic started by: Dennis Leonhardi on June 08, 2013, 02:32:21 AM

Title: Muffled Johnson Stunt Supreme?
Post by: Dennis Leonhardi on June 08, 2013, 02:32:21 AM

The old Johnson Stunt Supreme was quite an engine.  Question: Has anyone here run it with a muffler, and, if so, muffler used and results?  Thanks!


Dennis
 :)

Title: Re: Muffled Johnson Stunt Supreme?
Post by: EddyR on June 08, 2013, 07:57:18 AM

I had a tube style muffler on one for several years in a old time plane. Motor ran fine way back in 1985-89.
Ed

Title: Re: Muffled Johnson Stunt Supreme?
Post by: Dennis Leonhardi on June 08, 2013, 08:33:24 AM

Thanks Ed!  What kind of setting did you run, a rich 2-cycle?


Dennis

Title: Re: Muffled Johnson Stunt Supreme?
Post by: Howard Rush on June 08, 2013, 10:44:56 AM

Quote from: ama353 on June 08, 2013, 02:32:21 AM

The old Johnson Stunt Supreme was quite an engine.  Question: Has anyone here run it with a muffler, and, if so, muffler used and results?

No.  That would be wrong.

Title: Re: Muffled Johnson Stunt Supreme?
Post by: Dennis Leonhardi on June 08, 2013, 10:49:02 AM

Quote from: Howard Rush on June 08, 2013, 10:44:56 AM

No.  That would be wrong.

Because ...

 ???

Title: Re: Muffled Johnson Stunt Supreme?
Post by: Howard Rush on June 08, 2013, 11:46:26 AM

It's not as bad as an electric motor on an old-time plane, but it's still wrong. 

Title: Re: Muffled Johnson Stunt Supreme?
Post by: EddyR on June 08, 2013, 04:29:18 PM

Dennis  Mine ran pretty much like a Fox .35 just a little more power. I had a Tatone peace pipe on it. Fancy name for a tube muffler. I removed the baffles. I still have the muffler and use it on a Fox .59 I gave the motor to Bill Whitson who is no longer with us. I wonder where the motor is.
Ed

Title: Re: Muffled Johnson Stunt Supreme?
Post by: Dennis Leonhardi on June 09, 2013, 01:08:44 PM

Thanks Ed!

Howard, I agree.  But it comes down to flying site vs. no flying site ...


Dennis
 :)