x-pipe, h-pipe, off-road h-pipe?

Rally · 03-02-2002, 02:59 AM

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.

03-02-2002, 02:59 AM	#1
Rally Registered Member Join Date: Feb 2002 Location: Concord, CA Posts: 54	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?

03-02-2002, 11:21 PM	#2
Hammer AKA "Dr. Evil" Join Date: Feb 1999 Location: South Fork Ranch Posts: 1,721	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. __________________ Uncle Sam "What the hell is up with all the gauges? Calling Captain Kirk, your ride awaits... Phasers on stun...."

03-03-2002, 06:52 AM	#4
Hammer AKA "Dr. Evil" Join Date: Feb 1999 Location: South Fork Ranch Posts: 1,721	You are correct... __________________ Uncle Sam "What the hell is up with all the gauges? Calling Captain Kirk, your ride awaits... Phasers on stun...."

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