3" exhaust question
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
3" exhaust question
If I change out my 2 1/2 exhaust mid section (with x-pipe) for a 3" magnaflow x-pipe (running from 3" collctors to mufflers) will I lose any significant low end torque?
I had never heard of losing torque with a more efficent exhaust until someone posted it.
I have a crappy no name x-pipe and wanted to replace the sytem, but I don't want to sacrifice any low end torque for a few horses on top that I won't use very often.
Thanks
I had never heard of losing torque with a more efficent exhaust until someone posted it.
I have a crappy no name x-pipe and wanted to replace the sytem, but I don't want to sacrifice any low end torque for a few horses on top that I won't use very often.
Thanks
Racer
Joined: Nov 2005
Posts: 310
Likes: 1
From: St.Louis Missouri
I just got a new set of headers from the Vette Doctors.I was going to get the 3" mid pipes but they didn't recomend it unless you had a big cubic inch or F/I motor.The x part is 3" and then drops to 2.5".I got the off road pipe.
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
Originally Posted by B42Old
The problem is what are you going to run as a catback??
I am running magnaflow mufflers and no cats now.
"The x part is 3" and then drops to 2.5".I got the off road pipe."
It seems like the "reduction" in pipe size would disrupt flow
I guess I just can't see the scientific logic behind losing torque by running a larger diameter mid-pipe. If you will gain hp by allowing the exhaust to flow better and do a better job of removing all burnt gases from the combustion chamber, then how do you lose torque?
Racer
Joined: Dec 2005
Posts: 431
Likes: 0
From: North Las Vegas Nevada
I was told by a custom muffler shop owner that your exhaust is only as good as it's smallest opening. I do not know what the size of the collectors at the end of the stock headers are, but if they are 2.5 inches and you go to 3 inches down the line, you are waisting your $!
This was his theory and it seems to make sense.
This was his theory and it seems to make sense.
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Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
Originally Posted by allmee
I was told by a custom muffler shop owner that your exhaust is only as good as it's smallest opening. I do not know what the size of the collectors at the end of the stock headers are, but if they are 2.5 inches and you go to 3 inches down the line, you are waisting your $!
This was his theory and it seems to make sense.
This was his theory and it seems to make sense.
The collectors are 3". I know the mufflers will slow the exhaust flow, but I would think an unubstructed flow to the mufflers would help.