At 12:51 AM 10/13/2009, you wrote: >There will be a 2" diameter inlet on the top to attach the SCAT tubing. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
I'm not an engineer but a 2" hose sounds a bit overkill and I'm not too impressed with the NACA ducts I have on my KR for cockpit cooling. I ended up putting a small scoop on the outside to direct more air into the cockpit to make them work better. I cool my gascolator with a 1" hose attached to the back side of the engine cooling baffle. My gascolator cover leaves the bottom side open with the forced air entering the top. The open bottom is near the cowling exit on the bottom. I've not had any problems in the 350+ hours so far, even when burning auto fuel in the first 200 or so hours. Your primary objective is the keep the gascolator at ambient temperature, shielding it from engine heat. My suggestion would be to keep it simple. Your other concern will be to keep the line from the gascolator to the carburetor cool. Make sure you rap it with the orange fire hose. Larry Flesner
