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  #1  
Old 03-12-2022, 02:46 PM
claycookiemonster's Avatar
claycookiemonster claycookiemonster is offline
 
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Location: Midway, UT
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Default Mufflers within Showplanes or James cowl?

Can anyone comment on fitting mufflers within the tighter Showplanes or James cowl on an RV8?

I don't want to be a jerk with the loudest plane on the block, but I really like the sleeker cowls.

Also, taking the issue of mufflers off the table, what is the difference between the "crossover" pipes that are so common, and simply straight pipes X4?
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  #2  
Old 03-13-2022, 11:41 AM
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Scotty G Scotty G is offline
 
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Location: PHX
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Howdy, Clay.

No muffler on my RV-8, just a heat muff for cabin heat. My RV sounds a bit more throaty than GA planes, but doesnít approach obnoxious at all.

The reasons for crossover exhaust is to balance the exhaust pulses into a balanced back pressure and improve how the engine breathes. Some sources claim better power or higher RPM with a fixed pitch prop.

Pic of the setup in my -8 with a Showplanes cowl.

Iím a 320 CA PHX, where are you based? Take care!
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  #3  
Old 03-14-2022, 10:04 AM
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claycookiemonster claycookiemonster is offline
 
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Thanks, Scotty! I assume CHD is Chandler? I trained and was based at Williams back in the day when it was nothing but cotton fields out there. 1980 - 1984. I'm retired from AA now. Finished up as a 737 CA in DFW.
I'm good with "throaty", just didn't want to end up being objectionable. I'm up in Utah, so a heater is required, but mufflers, not so much. Thanks for the info. I'm hoping for a first flight in the summer of '23. Returning to the east valley will be a high priority. See you then!
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Clay "Cookiemonster" Cook
USAF: T-38, F-111F
American Airlines: 727, MD80, 757, 767, 737
RV8 #81751 project sold
RV8 #81651 project acquired
https://theonceandfutureflyer.wordpress.com/
Donations up to date thru December 2015

"...serenity...courage...and wisdom..."
Reply With Quote
  #4  
Old 03-16-2022, 07:00 PM
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Scotty G Scotty G is offline
 
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Beers and dinner on me, then! Looking forward to meeting you.
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