Since new five years ago my Cylinder #1 has been considerably lower than the others (usually under 300 F) and it has been mentioned here that the temperature needs to be brought up to around 350 F for "best" performance. I'm flying in a race at Courtland in one week (6-13-09) and my competition is getting faster and faster so I'm getting desparate. I added three platenuts to the right side cooling air inlet ramp and I made a small deflector to mount there. I will get a test flown as soon as possible. Using my standard test method the speed will have to be greater than 184.4 kts TAS to convince me it makes any difference. We will see. I will report my results but there isn't time for the range of experiments with the deflector shapes and sizes before the race. The one I have now is in front of the large cooling fins at the "top" (outboard end) of the cylinder only. The inboard end is 0.7" above the sck ramp position and the outboard end is 0.4". I just threw in on and measured it tonight. I will work with it a little before I install for flight.
Bob Axsom
Bob Axsom