Ed.  Just not enough space in the wing for a fan.  I’ll defer any decision on a permanent change until engine tuning is completed and we have a bit more taxi time; including some high speed.  The expectation is that cooling will be good once there is some lift under wings.  

 

After a brief warm-up; I was able to maneuver around the hangar, taxi about 3000 ft downwind to the end of the taxiway, and then return to the hangar before oil temp got to 220F.  Outside air about 68F.  The test will be to be able to taxi, do runup checks, and get to liftoff speeds with some margin.

 

Everything is on hold today as I strained my back moving the airplane in and out of the hangar.  Because of other planes in the big hangar, this takes a bit of maneuvering, and the plane is heavy now that is fully assembled and has 40 gallons of fuel in the tanks.

 

 

Al, I figured that any cooler changes could fall into the major effort category - to be avoided if possible.  Actually, it may turn out you really have it sized optimumly for least cooling drag at cruise airspeed - which for your type aircraft is probably the way to go.  Only way to really tell is to get airborne.  I find that 120 MPH IAS is the magic number to get the air flow adequate to cool at high power - obviously your milage may vary.

 

Yes, I think I sprain the instep of my foot from climbing runs of scaffoling and ladders during my hangar rebuild - it took almost a week to stop limping around like the old man I am {:>).  Sounds like you may need to get an old riding mower to move your aircraft around.

 

Ed