HI, COULD ANYONE ANSWER THIS QUESTION, I SURE WOULD APPRECIATE IT VERY MUCH. I HAVE A WEBRA PYLON 40 WITH DYNMIX CARB.CAN I USE THIS ON A REGULAR SPORT PLANE?OR IS IT A TURN LEFT,AND WIDE OPEN THROTTLE.THANKS FOR LOOKING HAPPY NEW YEAR TO ALL..........I BOUGHT THIS ENGINE THINKING I COULD USE IT FOR THAT APPLICATION.DID I MESS-UP?

The Webra Q500 engine you bought will be a great engine for sport flying. The only distraction will be the carb. It doesn't draw fuel very well and needs a lot of fuel pressure fed to ithe carb to work well throughout its range. I would suggest adding a one way check valve in the muffler pressure line to the fuel tank. This will lock in a larger amount of pressure than you will normally see from straight muffler pressure. The second option would be to pick up a "TN" carb from webra. this is a more typical barrel style carb that works great for sport applications.

Good Luck!

Pete

Tullahoma Tennessee! That place sure brings back lots of good memories. Spent many months there supporting Wind Tunnel activities at AEDC. About a year ago I purchased a Webra Speed 40 Pylon engine as a Q500 practice thrasher. The engine came with both a barrel type(TN) and a guillotine type carb. The guillotine carb didn't show much promise for a reliable idle. I didn't spent that much time working the low end carburation, but the muffler/pipe that came with it seemed inadequate to produce a pressure source good enough for tank pressurization. To me that check valve mentioned earlier sounds like a must.

Good luck

MaxQ