"H" or "X" Pipe On A V6?
Most any half decent engine builder out there can tell you about the benefits of an "X" or even and "H" pipe in the exhaust system as it is pretty well known that they "balance" exhaust pules and can even increase scavenging if designed properly. In my mind, they are a no brainer on pretty much any application utilizing dual exhaust manifolds and pipe.
But then there is the Big GMC V6 family with their unique firing order where it is perfectly staggered from one side to the other unlike most all (if not all) other "V" engines that have one cylinder firing right after another on the same side.
With this being the case, in my mind, there is no exhaust pulse "imbalance". If this is the case, there is no benefit to an "H" pipe as they really only balance the exhaust without increasing scavenging.
If I am still on the right track, then the question begs, "does an 'X' pipe provide any benefit?"
It doesn't provide any gains from balancing the exhaust, but could it still increase scavenging?
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