X pipe H pipe or side by side

yellow rose said

This is exactly what I am saying. If the h pipe adds volume and it picks up HP, you either need a bigger primary tube, a bigger or longer collector, or a combination of any or all of those things.

Those x and h pipes are a band aid in most cases. Unless of course, you are trying to run down joe Gibbs for the money.

Funny thing is, I never see Comp guys or even most fast bracket cars don't use them. Unless they are required to use a full exhaust. Then maybe, because of rules, it would help.

As I pointed out, if the SYSTEM is correct, most likely you won't find a gain, and will probably find a loss.

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It has nothing to do with volume though. And has everything to do with merging the exhaust pulses and that effect on scavenging. We know the effect that headers have right? That the pulses not slamming into each other before the collector allows better flow right? An H or X pipe is the same. It allows the exhaust to pull the pulses behind it along. Creating a better scavenging effect.

And no, you probably won't see it on some cars. Top fuel runs "zoomie" style individual exhaust, which has been PROVEN to lose power on street/strip cars. Bigger primaries? Lose low end torque, fact. Bigger collector? Lose low end power, fact. What works on one car won't work on every car. You have to build your setup to work with itself. X and H pipes are not a bandaid. There is a proven power increase with them on common, street/strip setups. If you don't wanna put in a 6" piece of pipe because of cost or weight, power to you. But don't go around saying they don't make power. It's well documented they do.