Mike and I were talking at Copper State on where to
put his oil cooler. Mike is talking about redoing
his motor mount to make room.

Here are a couple of pictures of his engine arrangement.

I need a few dimensions for a 3D Mike.
Diameter of the spinner?
Distance from spinner back to firewall.

I have the rest of the RV4 dimensions.

Looks like one of Jerry Hey's motor plates would be ideal.
The left side top diagonal tube would clear the exhaust
system if the up and down position of the left side rubber 
bushings was chosen properly.  If the right side rubber 
bushing was far enough outboard you might be able to 
squeeze a stock oil cooler long ways outboard of 
the spark plugs dumping air out the side of the cowl.

You could take it all apart and ship your motor mount to
Jerry Hey for modification. No need to make a new cowl.

Something similar to this 2D drawing.

Paul Lamar
 
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