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-   -   x-pipe, h-pipe, off-road h-pipe? (http://forums.mustangworks.com/showthread.php?t=20165)

Rally 03-02-2002 02:59 AM

x-pipe, h-pipe, off-road h-pipe?
 
I seem to be hearing mixed reviews about the different catpipes. Everyone seems to be fiercely loyal to their choice of these. For a N/A all-around daily-driver, which will eventually have intake/heads replaced, what is the best choice for performance? I was planning on going with an x-pipe, probably Bassini, but those with off-road h-pipes just love them. What is the difference?

Hammer 03-02-2002 11:21 PM

Actually, the performance gains from an h-pipe are very comparable to an x-pipe...

Difference?
The H-Pipe will put out a bit more torque.
The X-Pipe will put out a bit more horsepower.

Rally 03-03-2002 02:37 AM

Quote:

Originally posted by Hammer
Actually, the performance gains from an h-pipe are very comparable to an x-pipe...

Difference?
The H-Pipe will put out a bit more torque.
The X-Pipe will put out a bit more horsepower.

I also read that h-pipes have power lower in the rpms, while x-pipes have their power higher up in the rpms. Is this correct as well?

Hammer 03-03-2002 06:52 AM

You are correct...

murderking 03-07-2002 11:11 PM

Quote:

Originally posted by Rally


I also read that h-pipes have power lower in the rpms, while x-pipes have their power higher up in the rpms. Is this correct as well?


From what I understand... that's actually the same thing as he said previously... since you usually get torque at lower rpm, and horsepower at higher (HP = Torque * revolutions per minute * conversion factor)

Rally 03-08-2002 04:33 AM

Quote:

Originally posted by murderking



From what I understand... that's actually the same thing as he said previously... since you usually get torque at lower rpm, and horsepower at higher (HP = Torque * revolutions per minute * conversion factor)


Aha! I love physics!

You're right, In the above equation, HP is directly proportional to torque. As torque is increased, so is HP given a constant rpm. But if HP stays the same and torque increases, rpms must drop to compensate...therefore torque increase will be found lower on the powerband. If HP increases, and torque stays the same, rpms must increase, thus making the HP gain higher in the powerband.


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