Hahaha, yeah John I know the type.

My family always complains when I put a lid on a jar or a cap on a soda bottle. I swear I only 'snug it up' but they can never get them open again. Sissies........

I have made another version of the collector ring. This one has the exhaust outlet pointing straight down. I also inserted a length of tube in the outlet where I can attach the drain line from the crankcase. The muffler is a little more restrictive than the other one, but that's okay. I tested a big prop today, a 22x10. I could really hear the difference in the load applied to the engine as it was making it work harder. It also idled much lower, 1350 RPM.

Here is a video of todays run if anyone is interested:

http://www.vimeo.com/12703597