Hi guys,
I was wondering what happens when the pipe is to long??? Will the engine run, will ya be able to set a good needle setting, will the power drop off, will the engine act like there isn't a piped? Also what happens when the pipe is to short?? Will the engine act like a 4-2-4 set up, act like a normal muffler set up, will the engine perform?? I know a lot of these questions seem to be dumb to many but to some they only wonder. I guess I could make the pipe to short or to long and find the answers but was hoping some would let the rest of us know what happens when the pipe is to short or to long. I had one R/C guy tell me I was going at it the wrong way when I made the pipe 16.5" as suggested by Mr. Frank William, this is the metal pipe set up. Then another told me to make the carbon pipe 18.75". The R/C guy told me that I was all wrong I wasn't going to get the power out of the pipe. I told him that I wasn't after the power, I was just trying to control it. Of coarse he just laughed at me, yes I laughed with him, cause he was the joke, not me. But just wondering what if, what if?? Gary

Thank you Brett, this is why I use the size venturie, pipe length, type fuel and prop that is recommended by you, Randy and others that run this type of set up. I have notice that there is many many items that goes into making the engine run correctly. A small air leak can change the whole set up. Pipe set up is a great way to go but ya got to be sure that everything is correct and to be sure ya talking with the people that run pipes the way you want to fly. The R/C person I speak of runs pipe on speed boats and I believe that's completely different, cause the way he told me to set up the pipe is way off from what I've been told here. I really appreciate the help that is on this forum. Without this help I would be lost and probably not having any fun.

Thanks Again
Gary