H-Pipe or X-pipe
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From: Orangepark Fl
H-Pipe or X-pipe
R these good 2 have on 77 vette was thinking bout getting it done the muffler shop i use makes them just wondering does it add more power or anything if so which 1 would u use? :thumbs:
Drifting
Joined: Jan 2002
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From: Northampton Ma
Re: H-Pipe or X-pipe (Stingray 77)
I have 2.5" exhaust with an X-pipe on my '77. They help to balance the exhaust "pulses" and create a suction. I think the X-pipes are better, all you have to do is look at the shape, the more turns and sharp angles in the system, the less it will flow. The X-pipes are about a 45* angle and the H-pipe is a 90* angle. That's my opinion :cheers:
Melting Slicks
Joined: Feb 2003
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From: Long Island NY
Re: H-Pipe or X-pipe (Ryan77)
I had true duals installed. 2 1/4" with H-pipe. Ask your exhaust guy what to use. I was told by 3 exhaust pros...1- Go with 2 1/4" not 2 1/2". 2 1/2" will work better with over 325hp (I have a stock L82). 2- True an X-pipe is better, but it needs to be very close to the collectors. Because the C3's have have the x-member and tranny in the way, it has to go futher back. They told me an X-pipe is not worth the extra money on a C3.
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From: Orangepark Fl
Re: H-Pipe or X-pipe (mvftw)
lol i dont know how much hp i have i know stock it has 180HP but duels and flowmaster now and k&nfilter maybe 200 at the most i know its a sad story :nopity
Race Director
Joined: Apr 1999
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From: CORVETTE 77 385 C.I. TEXAS
Re: H-Pipe or X-pipe (Stingray 77)
It's also called a balance pipe to improve flow, the X is basically a H w/o the pipe. Both work. It's possible the H may make more power in one portion of the rpm range & the X in another portion of rpm range of the overall rpm range.
Since both work to increase power, use 1.
Since both work to increase power, use 1.
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Joined: Mar 2001
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From: Living in the Hartland
Re: H-Pipe or X-pipe (comp)
the X gets the nod :thumbs:
http://www.carcraft.com/techarticles/69238/index.html
Melting Slicks
Joined: Jun 2001
Posts: 2,429
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From: CA
Re: H-Pipe or X-pipe (Stingray 77)
Here's a website that has a bunch of sound clips sorted by H & X pipes:
http://ubb.mustangexhaust.com/cgi-bi...cgi?category=4
I know it's a different manf, but it should give you an idea
http://ubb.mustangexhaust.com/cgi-bi...cgi?category=4
I know it's a different manf, but it should give you an idea
Melting Slicks
Joined: Feb 2003
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From: Long Island NY
Re: H-Pipe or X-pipe (Fevre)
Like I mentioned early. This debate is more then just what's better. It invovles C3's. So the location of the H or X pipe is a major concern. These pipes work better the closer foward. An H-pipe in a C3 will be closer foward then a X-pipe.
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From: Living in the Hartland
Re: H-Pipe or X-pipe (mvftw)
Like I mentioned early. This debate is more then just what's better. It invovles C3's. So the location of the H or X pipe is a major concern. These pipes work better the closer foward. An H-pipe in a C3 will be closer foward then a X-pipe.
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From: Living in the Hartland
Re: H-Pipe or X-pipe (mvftw)
At first glance it looks like a toss up but check out the numbers at 3000 rpm's, the x-pipe kills the h-pipe, I assume that holds true below 3000 rpm's also. Odd how the numbers cross over each other, the x-pipe is higher until 3600 rpm's then again at 5500 rpm's. :confused:
Race Director
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From: CORVETTE 77 385 C.I. TEXAS
Re: Carcraft "test"
Fevre noted a size difference in the Carcraft "test".
If someone is going to use a "test" as a source of info., you must read it very carefully. Everything should be the same except the test part. They should know if they are testing crossovers or mufflers.
In Carcraft "test" note that "a set of used unknown brand race-type mufflers" is used for the H pipe "test". Surely the size "2 1/2" would be the same. Actually no, the pipe then, actually no.
"Finally, we swapped on the stepped X-pipe setup" ...
"MagnaflowÂ’s 3-inch center inlet/offset outlet PN 14229 muffler as used on our system"...
Surely they know better, this sort of "test" would have them failing H.S. physics. Since they are selling X pipes maybe the H pipe did too good w/ the same mufflers. There are indications here that multiple tests were done. For EX.: "H-Pipe, X-Pipe, 1, 2, 3..." "We left the car at Magnaflow for about a week", etc.
Nothing wrong w/ finding the best X system for their setup, but calling it a "test" ...
Proves almost nothing, their "MagnaflowÂ’s 3-inch" properly set up were better than "a set of used unknown brand race-type mufflers", well maybe they're not "race" mufflers ...
[Modified by Ganey, 6:03 PM 2/10/2004]
If someone is going to use a "test" as a source of info., you must read it very carefully. Everything should be the same except the test part. They should know if they are testing crossovers or mufflers.
In Carcraft "test" note that "a set of used unknown brand race-type mufflers" is used for the H pipe "test". Surely the size "2 1/2" would be the same. Actually no, the pipe then, actually no.
"Finally, we swapped on the stepped X-pipe setup" ...
"MagnaflowÂ’s 3-inch center inlet/offset outlet PN 14229 muffler as used on our system"...
Surely they know better, this sort of "test" would have them failing H.S. physics. Since they are selling X pipes maybe the H pipe did too good w/ the same mufflers. There are indications here that multiple tests were done. For EX.: "H-Pipe, X-Pipe, 1, 2, 3..." "We left the car at Magnaflow for about a week", etc.
Nothing wrong w/ finding the best X system for their setup, but calling it a "test" ...
Proves almost nothing, their "MagnaflowÂ’s 3-inch" properly set up were better than "a set of used unknown brand race-type mufflers", well maybe they're not "race" mufflers ...
[Modified by Ganey, 6:03 PM 2/10/2004]
