I thought you were just "plugging in?"  Damn this is going to be an expensive hobby.

The mac's pipe's instructions are for increasing horsepower with the pipe.  In Stunt the application is perhaps a mild boost of power, if any at all, and a break to keep the motor from speeding up too much. If using mac's products, you would probably at least use the full length header, or perhaps use some tubing as an extension.  Frank Williams has used metal pipes in the past, and he would probably be the person to contact.

Look up (search for) Danny Dirt's "Wimpact" posts. He uses a MACS pipe and header on his .25FP, with good results. The pipe is a "quiet tuned pipe", and seems to work for Dan.   Steve

Edit: Woops, looked farther down the list, and I think it's a "muffled tuned pipe", not the "quiet tuned pipe". Dirt's posts should clear that up, tho.

So what creation is this setup going in? Will I get to see it before the first set of crash repairs? Dang, this is going to be an expensive hobby! 

Brian

Hi Brett,

Yes, it has to be about four inches longer. Mr. Frank Williams told me to add around four inches and make sure there isn't any air leaks. Mr. Williams told me he has used several aluminum pipe and also how to measure them. Being as dumb as I am, I just send him a picture of the set up I have and thats how he decided that I needed the four extra inches. I ordered a venturie and needle valve set up from Randy, so maybe something will be correct with my set up. I like the engine so well that I bought two more to play with. I really appreciate help from the group, its really great to have people on this forum trying to help.

Gary Anderson

Hi Bill,

The weather hasn't been the best around here. A little rain and us California Spoiled Brats just stay home and play with our toys. I've run the engine with the extra four inches as suggested bye Frank on the ground and she is great. I liked it so well I bought two more OS Max 40 FSR ABC Engines. The FSR Engine is a very strong engine and runs very cool. The engine is turning 12000 rpm's and you can hold on to the bottom of the engine and it doesn't even get warm. After she runs out of fuel you can fuel her up and she'll start the same as if it has been sitting for an hour. Never had an engine that didn't get hot over the whole engine. Most engine I have after a run ya can't touch the venturie, bearing area, back plate, without getting a little burn. I believe this was one of the items that sold me on the FSR engine. If the engine doesn't get hot, maybe it will run the same through out the pattern. Just my stupid way of thinking??? Just me. Mr. Brett told me I would get a good run away and I'm sure he's correct but I don't have much money in the complete set up, so I'll just have fun and probably won't learn my lesson. Just to old to cut the mustard? (I got the engine free and the pipe system cost me $37 bucks?)
Gary