REFLECTOR: Engine cooling NACA scoops

[Dave Philipsen]

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