Exhaust Post your questions and suggestions about stock or aftermarket exhaust setups. Third Gen exhaust sound files and videos!

X-pipe vs. H-Pipe

Thread Tools
 
Search this Thread
 
Old May 5, 2005 | 04:56 PM
  #1  
CbrasTsteLkChk's Avatar
Thread Starter
Member
 
Joined: Dec 2003
Posts: 230
Likes: 0
From: VA, USA
Car: '84 Camaro SC/ I-ROC Body Conversio
Engine: Rebuilt 350 5.7L, Edelbrock 750cfm
Transmission: Re-built 700-R4
Axle/Gears: Moser, 3.73
X-pipe vs. H-Pipe

Are there any advantages/disadvantages between these 2 different pipe setups? I want to get a comparison to see if i should get one over the other. Thanks for any info.
Reply
Old May 6, 2005 | 10:05 AM
  #2  
CbrasTsteLkChk's Avatar
Thread Starter
Member
 
Joined: Dec 2003
Posts: 230
Likes: 0
From: VA, USA
Car: '84 Camaro SC/ I-ROC Body Conversio
Engine: Rebuilt 350 5.7L, Edelbrock 750cfm
Transmission: Re-built 700-R4
Axle/Gears: Moser, 3.73
no one?
Reply
Old May 6, 2005 | 11:50 PM
  #3  
Grippo's Avatar
Junior Member
iTrader: (1)
 
Joined: Jan 2005
Posts: 6
Likes: 0
From: New York / NEPA
Car: '87 IROC, '87 K-10, '95 Ranger
Engine: 350 Tpi, 350 Carb, 4.0 EFI
Transmission: T-5, Turbo 350, Mitsu. 5-speed
Axle/Gears: 3.73
I've always liked the flow of an H over an X. The horizontal part of the H act to equal out the pressure coming from both headers.
Reply
Old May 6, 2005 | 11:54 PM
  #4  
Apeiron's Avatar
Moderator
 
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
H pipes are easier to fabricate, X pipes are more effective.
Reply
Old May 7, 2005 | 09:02 AM
  #5  
CbrasTsteLkChk's Avatar
Thread Starter
Member
 
Joined: Dec 2003
Posts: 230
Likes: 0
From: VA, USA
Car: '84 Camaro SC/ I-ROC Body Conversio
Engine: Rebuilt 350 5.7L, Edelbrock 750cfm
Transmission: Re-built 700-R4
Axle/Gears: Moser, 3.73
do they make them for hooker 2210's or are they something that need to be fabricated?
Reply
Old May 7, 2005 | 12:37 PM
  #6  
Apeiron's Avatar
Moderator
 
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
It would need to be fabricated. Considering no-one makes a dual exhaust for these cars, it would follow then that nobody makes a dual exhaust with an H or X pipe.
Reply
Old May 7, 2005 | 08:56 PM
  #7  
Clemson327's Avatar
Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Mar 2004
Posts: 217
Likes: 17
From: Honea Path, SC
Car: 1985 Z28
Engine: 383
Transmission: 700R4
Axle/Gears: 10 bolt/3.73
For what it's worth, I've always heard that an H-pipe offers better sound (deeper) but an X-pipe gives you more power.
Reply
Old May 7, 2005 | 09:18 PM
  #8  
CaptPicardsZ28's Avatar
TGO Supporter
 
Joined: Oct 2003
Posts: 2,069
Likes: 0
From: ready room
Car: NCC-1701-D (docked in AZ)
Engine: impulse drive
Transmission: fusion reactors
Axle/Gears: Rescued from the Borg by my crew
Originally posted by Clemson327
For what it's worth, I've always heard that an H-pipe offers better sound (deeper) but an X-pipe gives you more power.
One gives you a little more low end torque and one gives more top end. Thats my understanding of it. Can't remember which is which tho...sorry. One is also a little quieter than the other.
Reply
Old May 7, 2005 | 11:30 PM
  #9  
hereitgoes's Avatar
Junior Member
 
Joined: Dec 2004
Posts: 29
Likes: 0
From: (ab) Normal, Illinois
Car: 1986 F250 4x4
Engine: 365HP, 510 lb/ft TQ 460
Transmission: C6
X-Pipe, or Tangentially Siamesed Crossover, gives more torque and horsepower throughout the RPM range. H-Pipes have been shown to be effective at lower RPM. The sound between the two is much different, with the X-Pipe having a higher pitched, smooth tone, compared to the lower burble of the H-Pipe. Both are 4-6 dB(45-70%) quieter than straight dual exhaust. The obvious winner is the X-Pipe, but, due to packaging restarints, may not be a viable option under a Third Gen.
Reply
Old May 8, 2005 | 01:09 PM
  #10  
sellmanb's Avatar
Supreme Member
 
Joined: Jul 2004
Posts: 1,840
Likes: 1
From: Tigard, Oregon
Car: '86 Berlinetta
Engine: 350
Transmission: 700R4
the scavenging effect gained by the h and x pipes are greater in an X pipe since ALL the delta pulses at ALL RPMS go through the pipe. Where-as a H pipe will get most of the delta pulses at lower RPM, and just forget about it at higher RPMS since they're running through too fast to go through a small pipe that connects to the other header that doesnt even lead into it effectively.


an H pipe is much more effective than just two straight pipes. a X pipe is much more effective than an H pipe, but an X pipe has to have PRECISE exhaust made... the exhaust has to travel the exact same distance from cylinder to cylinder when they meet the X pipe, otherwise the delta pulses will bump into each other at mid-range RPM and kill any performance gains... this is typically why people go with the H pipe, you will be gaining the low-end grunt, and not chancing it like you would with a X pipe.


X>H>Straight pipes
Reply
Old May 15, 2005 | 10:45 AM
  #11  
25thrscamaro's Avatar
Junior Member
 
Joined: Feb 2005
Posts: 4
Likes: 0
Car: 92 Camaro
Engine: 305 tbi
Transmission: th-700-r4
Soo my exhaust be quieter with an h pipe? Will it be noticeable? The interior noise in my car is rediculous and i want to get ride of it. Is there nething else i can do?
Reply
Old May 15, 2005 | 09:30 PM
  #12  
sellmanb's Avatar
Supreme Member
 
Joined: Jul 2004
Posts: 1,840
Likes: 1
From: Tigard, Oregon
Car: '86 Berlinetta
Engine: 350
Transmission: 700R4
I would imagine the X pipe to be quieter just because it's doing more with the exhaust, making it travel more, where-as the H pipe only "allows" it to travel through the H pipe at lower speeds.


But I think that the fix to your situation would be a new choice in mufflers instead of adding X or H pipes (though with true duals you really need the H or X pipe to get the full effect of duals)
Reply
Old May 16, 2005 | 12:36 AM
  #13  
rx7speed's Avatar
Supreme Member
 
Joined: Aug 2001
Posts: 5,388
Likes: 2
From: Caldwell,ID
Car: 2005 BMW 545i
Engine: 4.4L N62B44
Transmission: 6spd auto
Axle/Gears: Rotating
Originally posted by sellmanb
the scavenging effect gained by the h and x pipes are greater in an X pipe since ALL the delta pulses at ALL RPMS go through the pipe. Where-as a H pipe will get most of the delta pulses at lower RPM, and just forget about it at higher RPMS since they're running through too fast to go through a small pipe that connects to the other header that doesnt even lead into it effectively.


an H pipe is much more effective than just two straight pipes. a X pipe is much more effective than an H pipe, but an X pipe has to have PRECISE exhaust made... the exhaust has to travel the exact same distance from cylinder to cylinder when they meet the X pipe, otherwise the delta pulses will bump into each other at mid-range RPM and kill any performance gains... this is typically why people go with the H pipe, you will be gaining the low-end grunt, and not chancing it like you would with a X pipe.


X>H>Straight pipes

both will gain best performance from being tuned to the correct length but the thing is both will also suffer from issues when you are outside that length.


it's not being tuned for maximum power but rather tuned for what rpm range.


so even h-pipe will suffer that same problem
Reply
Old May 18, 2005 | 12:40 AM
  #14  
gearrrhead's Avatar
Member
 
Joined: Jun 2000
Posts: 164
Likes: 0
From: corvallis. or
Car: 1990 iroc
Engine: 350 tpi
Transmission: 700r4
well on a normal dual exhaust a correctly placed x pipe will usually yield more power. there is a reason most big exhaust manufactures use them.

On the thridgen you would have to do some testing because locating the crossoever at ethe same distance from each bank

you could spend alot of time and money to gain no power if you did not really do it correctly.


I have borla catback and x-pipe on my 01 mustang. sounds great. the mid pipe was a more noticable power gain than the cat back. then again true dual and nice exhaust sound good x or h pipe IMO.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
3.8TransAM
Body
2
Sep 17, 2015 02:16 PM
Camaro_383
Exhaust
4
Sep 11, 2015 11:28 PM




All times are GMT -5. The time now is 06:06 AM.