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  #11  
Old 01-18-2016, 06:38 PM
Kyle Boatright Kyle Boatright is offline
 
Join Date: Aug 2005
Location: Atlanta, GA
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Quote:
Originally Posted by meloosifah View Post
I am not seeing a lot of 200hp RV8's cruising at 3000 rpm and only hitting 170 mph. Just sayin'. The -8 you are comparing to must be a monster dog. Not taking anything away from your radial - that thing looks awesome!
150hp and a bit more drag = a slower airplane than a 200 hp RV.

But guess whose airplane everyone will be standing around at Oshkosh? ;-)
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  #12  
Old 01-18-2016, 06:47 PM
SportAvServ SportAvServ is offline
 
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Location: Ione, California
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Congratulations! Very cool! Fuel flow? gph?
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  #13  
Old 01-18-2016, 08:00 PM
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flyboykelly flyboykelly is offline
 
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Location: Port Orange, FL (7FL6)
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Quote:
Originally Posted by meloosifah View Post
I am not seeing a lot of 200hp RV8's cruising at 3000 rpm and only hitting 170 mph. Just sayin'. The -8 you are comparing to must be a monster dog. Not taking anything away from your radial - that thing looks awesome!
The numbers I'm comparing to are 75% cruise numbers. But I also did a lot of aero work on the radial rv that I think helps. So it's hard for a true side to side comparison. I'm not measuring fuel flow yet (not until the efis is installed). All I know is I needed to satisfy one person with this project and I'm VERY satisfied!

I'll keep everyone up to date on the performance dats as testing continues.
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  #14  
Old 01-18-2016, 08:53 PM
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donaziza donaziza is offline
 
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Almost looks like a F6 Hellcat from WW II. Very nice
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  #15  
Old 01-18-2016, 08:54 PM
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jthocker jthocker is offline
 
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Location: Cincinnati, Ohio
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Quote:
Originally Posted by flyboykelly View Post
The numbers I'm comparing to are 75% cruise numbers. But I also did a lot of aero work on the radial rv that I think helps. So it's hard for a true side to side comparison. I'm not measuring fuel flow yet (not until the efis is installed). All I know is I needed to satisfy one person with this project and I'm VERY satisfied!

I'll keep everyone up to date on the performance dats as testing continues.
Very nice accomplishment on the radial. Congrats!
But I'm sure there are a lot of us that are scratching our heads about a 200 hp RV8 that's cruise speed at 75 % pwr is only 170 mph.

We have a lot of RV8s in Cincinnati that cruise at well documented and verified 170 KNOTs at around 60%pwr, with parallel valve IO 360s.
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  #16  
Old 01-18-2016, 09:23 PM
rightrudder rightrudder is offline
 
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Location: Laguna Hills, CA
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That things sounds amazing! Thanks for the video.

That big radial and associated cowling no doubt has more drag, which goes a long way toward explaining the lower cruise speed. Totally worth the trade....you've created a unique and wonderful machine.
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  #17  
Old 01-18-2016, 10:40 PM
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AZtailwind AZtailwind is offline
 
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Location: Flagstaff, AZ
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Quote:
Originally Posted by donaziza View Post
Almost looks like a F6 Hellcat from WW II. Very nice
Or a WildCat Super Super cool!
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  #18  
Old 01-18-2016, 11:04 PM
DaAV8R DaAV8R is offline
 
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Location: Lee's Summit, MO
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Heck...........who cares how fast it goes! If I built and was flying that airplane I wouldn't be in any hurry to reach the destination

Great job on the build.
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  #19  
Old 01-19-2016, 04:15 AM
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DanH DanH is offline
 
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Quote:
Originally Posted by rightrudder View Post
That things sounds amazing!
Precisely.... love the sound.

Quote:
That big radial and associated cowling no doubt has more drag, which goes a long way toward explaining the lower cruise speed.
Brian, considering just firewall forward, do you know how much additional frontal area you actually have?

The frontal area of a stock RV8 might be considered the firewall area plus that part of the coal shovel cowl exit which extends below the belly skin line. The Rotec is only 33.5" diameter, so I'm guessing the cowl is not wider than stock.
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  #20  
Old 01-19-2016, 04:16 AM
81270 81270 is offline
 
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Location: Gold Coast - Australia
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Quote:
Originally Posted by flyboykelly View Post

I'll keep everyone up to date on the performance dats as testing continues.
Please do, I'm like a little kid waiting for the next edition of "Boys Own Journal"
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