Hey, I havent recieved the new ring yet, but I have got the engines that Combat sent me. He sent 2 short shaft engines and one long shaft engine. I have read that the long shaft engines produce quite a bit of power, so I am going to test it out tomorrow. I measured the exhaust duration, and it was around 140 stock. Since I damaged the gasket and dont have a replacement, I am going to use the three bond. In order to retain the original specs, I ported the exhaust so that without the gasket, the duration remains at 140. Its not a bare bones stock test, but I figue that its close enough. There are many threads already done about the stock performance of this engine. removing the gasket to increase compression probably yeilds marginal gains. I also dont have a backplate gasket, so I used the three bond there as well. Im kinda excited to see what kind of numbers I will get. The test prop will be the 16-6 prop. I cant use my 16-8 cause I had to drill the center hole out to fit another engine that I have.
I am going to charge my camera up to make sure I get a video for you guys. Dont worry, I will edit out any poor camera work.