I had oil cooling issues on my GPASC 2180 VW. Just could not flow enough air through the firewall mounted oil cooler. The cooler was probably too small (3x4x10 inches). Took it all out and installed a Revmaster oil pump and cooler. Part of the Revmaster kit is a new oil pressure control, temperature sensitive spring, spin on oil filter and mechanical fuel pump all mounted on the bottom and front of the GPASC VW. This cooler is about 3 times the size of the old GPASC cooler. The rectangular air inlet fits the Revmaster supplied box for the cooler and I modified it to also supply carb air, cool air for the Compufire ignition, alternator regulator and gascolator, and warm air for cabin heat (no more exhaust muff heat). Air outlet from the cowl is a ramp at the bottom of the fire wall 2 inches high and 22 inches wide. Summer or winter, the oil temperature now remains at 170 degrees F. Running the fuel lines along the bottom of the engine to and from the new fuel pump has eliminated the vapor lock issue when shutting down for refueling for ten minutes and attempting to restart. Fire sleeves on the top mounted hoses and fuel pump did not make any difference in the vapor lock issue. Not sure how much ram air pressure recovery may be for the carburetor.
https://s3.amazonaws.com/expercraft/sidwood/164594493535aecddd7537.jpg The picture shows the fit up before painting for my homebuilt cowl. The green peeping through is from the green Styrofoam from Lowes. My RR cowl would not fit the Revmaster oil cooler installation. Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA ---------------------------------------------------------------- -----Original Message----- Dear All, Let's see if I can take care of some business.I have noticed that many of us have an air scoop on the bottom of our cowlings. ?Has anyone tried the prefab scoop that Vans sells for the RV6 with the 320 or 360 engine? ?It costs about $80, which it is hard to build for less than that. ? I have already built my version of Vans "FAB" air box intake with filter and I feel that thier air scoop would work. ?What have you done that worked for you? ?I built a mold that should fit over my air filter box but for $80 I could save myself a lot of sanding. Check it out at Vans website to see if it might work for you. Like Mark said, I have scarffed a joint or two! Joe Nunley?CW2 US Army RetiredBaker JROTC Instructor?Baker Florida? ------------------------------
