ORIGINAL: Timmer01
would a tuned pipe do my fox 46BB any good? what could i expect to gain? and if so, which one? how do you tune a tuned pipe? iv herd of people burning up a engine with a tuned pipe, why would this happen?
A tuned pipe will give you a power gain on any engine. How much and gain depends on the engine and the pipe. What a tuned pipe does is help scavenge the exhaust gases from the cylinder and stop the incoming charge from going out the exhaust port. It doesn't "supercharge" it. The idea that the return pulse shoves gases back into the exhaust port is a myth that many buy in to. For this to happen the flow would have to reverse in the exhaust system at many thousands of RPM. It just doesn't happen.
Don't believe me? Ask Dick Hanson.