Well, that about sums it up. I'm currently gathering parts for a dual exhaust setup and started to wonder if I really need to purchase an "h" pipe. Ideas? Suggestions?
It's not entirely necessary. I have heard that running straight mid-pipes cause a raspy popping sound, but I haven't heard this myself. I had an H-pipe put on with my duals to keep the tone down a little.
I didn't have an H or X pipe on my V6, i went straight thru and it sounded nice. No Popping or sputtering as some would say.
H or X is only needed to equalize the gas pulses from an uneven firing order of the V8. V6's have an even firing order. but i agree with what was said above, if you get a mid pipe go with an X = more power over an H.
Well, that about sums it up. I'm currently gathering parts for a dual exhaust setup and started to wonder if I really need to purchase an "h" pipe. Ideas? Suggestions?
H or X is only needed to equalize the gas pulses from an uneven firing order of the V8. V6's have an even firing order. but i agree with what was said above, if you get a mid pipe go with an X = more power over an H.
I've said this before and I'll say it again...an H or X pipe will help an engine flow better no matter what the engine. One advantage of an H or X on a non even firing motor is what you said, but also when the exhaust passes through one end of the H-pipe, it creates a mild vacuum due to a change in pressure, regardless of firing order, so therefore an H or X will help any motor, it's all in the physics.
[QUOTE='03 6-Speed]I've said this before and I'll say it again...an H or X pipe will help an engine flow better no matter what the engine. One advantage of an H or X on a non even firing motor is what you said, but also when the exhaust passes through one end of the H-pipe, it creates a mild vacuum due to a change in pressure, regardless of firing order, so therefore an H or X will help any motor, it's all in the physics.[/QUOTE]
no it wont. the even fire 3.8 and GM4.3 and 3.8 and dodge 3.9,3.7 and isuzu 3.2,3.5 have a cylinder fireing on each bank at the same time which wouldn't allow any vacuum scavanging.
the H or X does absoutly nothing for an even fire 90 degree v6. Smokey Yunick back in the late 70's and early 80's worked quite a bit with the even fire buick and grumpy jenkins on the chebby semi even fire 265 racing block
they both concluded that the even fire 90 degree V6's benifit mostly by long tube headers feeding a 3" single exhaust. they found no extra power in a balance tube design over a divorced true dual exhaust and the big 3" single had the advantage with better torque production.
the odd fire buicks and full odd fire chebby 200 and 229 v6's would benefit from a balance H or X because they don't have a cylinder on 1 bank fireing simultaneously with a cylinder on the other.
60 degree V6's act differently. they act as 6 individual cylinders firing each individaully on a common crank hence the ability to have a 123456 fireing order like the 2.8 chebby. they can benefit from a balance tube because while 1 side is on powerstroke 1 piston on the other is on exhaust