REFLECTOR: Engine cooling NACA scoops
Dave Philipsen
velocity at davebiz.com
Thu Jul 17 10:38:35 CDT 2008
Scott, thanks for the good tips. Could you elaborate more on the
turning vanes? Do you have any pictures?
Scott Derrick wrote:
> Dave,
>
> I had an IO360 in a STD RG that had bad temp problems when I bought it.
>
> Things I did to fix it.
>
> 1.) smoothed the inside of the oil duct by filling with micro and sanding.
> 2.) installed turning vanes in oil duct ahead of cooler.
> 3.) plugged every hole in baffling larger than 1/16 inch, being anal is
> the key here.
> 4.) Went from 4-into1 exhaust to 2-into-1 on each side that exited the
> cowling straight back(not sure if this made any difference)
> 5.) Installed a Lightspeed Ignition which allowed me to run LOP.
>
> After all these changes, the last two not initially done for heat
> problems, my high CHT was 360, summer oil temps 195
>
> On very hot days I had to step climb, in the spring, fall,winter I
> couldn't over heat it. IN the summer I had to run LOP and manage my
> climb rates.
>
> Scott
>
>
>
--
Dave Philipsen
Velocity STD-FG
N83DP
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