NSW Corvettes

Technical Tips => Pre 84 => Topic started by: rebel on January 14, 2003, 09:45:23 PM

Title: Techo Question: X pipe vs H pipe
Post by: rebel on January 14, 2003, 09:45:23 PM
I know the purpose of the x-pipe, is to equalize the pressure in both pipes thereby making more power available, especially low end torque.  But does anyone know how this differs from H pipe designs and what the benefits are ... ? ;ay

Thanx ...
Title: Techo Question: X pipe vs H pipe
Post by: 77CVT on January 01, 1970, 10:00:00 AM
An X pipe is a step up from an H pipe.  An H pipe or balance pipe will balance the exhaust pulses evenly between the two pipes, giving a mellower sound.

An X pipe does the same thing but better - that's about all I know.  ;laugh

In a 'vette, the best place is just behind the crossmember.

Both give better low end torque and heaps better sound.  If getting an X pipe, ask how they make it as a few leave the inside surface eneven with welds etc.

Check this article - http://www.autospeed.com/A_0608/page1.html

EDIT: I found this in my travels.

"X-Pipes - Function of an x-pipe is to synchronize the exhaust pulse by merging separate banks together lessening back pressure and increasing scavenging, in result a horsepower and torque increase from 2-10% depending on the application is obtained through out the entire RPM range.
The x-pipe will lower decibel levels 2-3 dbs for a more quality exhaust note.

H-Pipes - Function of a H-Pipe is to equalize pressure between banks in return the vehicle will gain more low and torque and gain in sound quality.
In Race applications the use of a balance pipe is recommended for sound control and extra volume for negative back pressure.

Y-Pipes - Function of a Y-Pipe is used to increase low and mild range torque and horsepower. Y-pipes are used when tight working area's are a factor.";;"1042583502
Title: Techo Question: X pipe vs H pipe
Post by: rebel on January 15, 2003, 09:41:16 PM
Great report thanx !! You've been escalated to exhaust expert!

Now throw some cat's into the mix .... obviously a change in tone and power but any other remafications .. ?
Title: Techo Question: X pipe vs H pipe
Post by: 77CVT on January 01, 1970, 10:00:00 AM
"Now throw some cat's into the mix .... obviously a change in tone and power but any other remafications .. ?
Title: Techo Question: X pipe vs H pipe
Post by: Adam on January 01, 1970, 10:00:00 AM
Quote
Originally posted by 77CVT
"Does my 1984 Mazda 323 require a cat when I run it on inleaded?  I don't think so.
Title: Techo Question: X pipe vs H pipe
Post by: 77CVT on January 16, 2003, 01:15:23 PM
I do - honest!  It's just that I drive my buzzbox a heck of a lot more.  :(
Title: Techo Question: X pipe vs H pipe
Post by: rebel on January 16, 2003, 09:39:40 PM
>>"Now throw some cat's into the mix .... obviously a change in tone and power but any other remafications .. ?"

>>You mean apart from the ridicule of your fellow car enthusiasts?

Just tryin' to get people chattin' dude, there's method to my madness ..... :22;laugh

>>just ram a one inch drill bit through the centre a few times and she'll flow even better

We've had this discussion too - and we ended up talking about pussies ..... :an:22
Title: Techo Question: X pipe vs H pipe
Post by: 77CVT on January 24, 2003, 03:58:59 PM
And this...http://www.carcraft.com/techarticles/69238/
Title: Techo Question: X pipe vs H pipe
Post by: 69 DIRTY RAT on January 25, 2003, 09:54:21 PM
Do you want to race me with that beast of a 323 pussy cat as well!I'll give you a week head start!.Sorry I had to bring it up.
Title: Techo Question: X pipe vs H pipe
Post by: 69 DIRTY RAT on January 25, 2003, 09:58:33 PM
Thats weird I didnt write the post like that but it came out with "cat cat" and bold writing,please explain somebody?
Title: Techo Question: X pipe vs H pipe
Post by: Ausrs on January 25, 2003, 10:39:14 PM
unless you are cat gutting and shoving a pipe through to make it same as the exhaust you are probably wasting your time
the cats of today when using a high flow have no significant effect on the note or the flow of gasses ..............and keeps mr epa happy as well :flower:flower
Title: Techo Question: X pipe vs H pipe
Post by: 77CVT on January 28, 2003, 09:43:04 AM
"323 pussy cat "  The first cat was typed p*ssy (except without the *).  Do we have some kind of netnanny software that prevents words that may somehow corrupt the youth of today?  I don't know why it went bold type because mine is doing the same thing.

Oh..........and I'll need more than a weekend head start! ;mmm
Title: Techo Question: X pipe vs H pipe
Post by: rebel on January 28, 2003, 09:42:23 PM
77cvt got it right. It's not NetNanny but censor scripts. It's a word substitution that replaces one word with another. The reason it turns bold is that the substitution begins in bold and highlights everything else in that sentence.

It's put there so people can't call me names .... :22