ORIGINAL: AGR413
Thanks for the kind words, the fun fly was a crazy day for me I had several planes of my own to fly and was buddy boxing my son as well. I talked to a couple of people briefly about the bobcat can't really remember what was said though.
The end of the story on the Tower .75 was that for my installation the exhaust deflector is mandatory for proper running. I was flying to bobcat the day before the fun fly and the deflector came off in flight [:-] the the "rich" condition returned immediately. I re-tightened everything on the muffler and put a new exhaust deflector on the night before the fun fly and she was back up to form.
So yes for my installation of the tower .75 the exhaust deflector works and is mandatory for peak RPM.
This is the other option I have considered to solve the exhaust problem but I'm not sure I want somthing sticking up right next to the engine. Any thoughts?
http://www2.towerhobbies.com/cgi-bin...?&I=LXGBL0&P=7
AGR,
I just your writeup and the video. I see that you have the exhaust deflector pointing up. I should have suggested that running the Tower .75 a while back. I run my stock muffler pointing up and to the side. I haven't had the problem your having with your .75. In fact, I was having the opposite problem and went down to 5% fuel to keep the engine cooler. My setup is a little different with the tanks reveresed and I added a hopper tank which helps.
As far as balancing concerns, I've got all 4 servos in the rear and the 2 oz. hopper tank. I used 2 hydrimax 4 cell packs, 1600mah in the tip of the nose Y harnessed together. No Lead Weight added. Balances perfect. With this setup and the extra 2oz of fuel, you can fly for a while.