X-Pipe vs No X-Pipe - Pontiac GTO Forum
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post #1 of 22 (permalink) Old 12-11-2005, 02:24 AM Thread Starter
 
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X-Pipe vs No X-Pipe

Is an X-pipe exhaust system really better than a straight dual exhaust? Take for example a 350 with an automatic, stock exhaust manifolfds, edelbrock performer intake, edelbrock 1406 carb.
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post #2 of 22 (permalink) Old 12-11-2005, 10:59 AM
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IMO, I would say yes, the x-pipe allows for each cylinder's exhaust to travel through 2 mufflers creating less restriction and better flow.

Randy


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post #3 of 22 (permalink) Old 12-11-2005, 11:16 AM
big_mike
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not to contradict randy but the purpose of an H pipe or an X pipe in the exhaust is to equalize the flow of exhaust through the entire system. You see, the H and X pipes create a vacuum of sorts to get the exhaust out quicker which enables less backpressure which means more power!

So, talk to your muffler shop and see which one is right for you.
 
post #4 of 22 (permalink) Old 12-11-2005, 11:37 AM Thread Starter
 
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That's what I'm not sure about, it seems to me mufflers of any kind are an obstruction, even the free flowing kind, when you compare them to straight pipes. Also, if the left and right banks are separated there would be no interference, or pressure from other exhaust ports.
Finding a muffler shop you can trust may not be easy at first. How do you know if their not trying to get you to spend more money? That's why I came here with this question.
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post #5 of 22 (permalink) Old 12-11-2005, 12:22 PM
 
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I know my father-in-law used to run x pipes on his older muscle cars to keep them from sounding as loud. Something about the x pipe that equalizes the sound and makes it a little less "thumpy". Makes the car more of a sleeper.

Never been close up to one to see the difference!

'05 QSM M6
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post #6 of 22 (permalink) Old 12-11-2005, 02:43 PM
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Quote:
Originally Posted by big_mike
not to contradict randy but the purpose of an H pipe or an X pipe in the exhaust is to equalize the flow of exhaust through the entire system. You see, the H and X pipes create a vacuum of sorts to get the exhaust out quicker which enables less backpressure which means more power!

So, talk to your muffler shop and see which one is right for you.
Your not contradicting me, we are on the same page. LOL

Randy


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post #7 of 22 (permalink) Old 12-11-2005, 05:56 PM
Rob in CT
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Right, The X pipes increase the 'scavenging' effect on the engine, scavenging is the suction(vacuum) created by the exhaust which actually helps to pull the exhaust gas out of the cylinder. Running an exhaust with an X pipe and good mufflers, will out perform straight pipes alone. A little bit of back pressure is actually a good thing, honest
post #8 of 22 (permalink) Old 12-11-2005, 06:16 PM
 
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My '71 Ford Torino 500 wagon with the 351C engine came from the factory with dual exhausts which included an H-pipe.

So, guess they are there for a reason.
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post #9 of 22 (permalink) Old 12-12-2005, 08:06 AM
 
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As far as finding the right muffler shop, check with your local car club and ask who does exhaust systems for cars in the club. I did this and am very pleased with the system and got a club discount too.
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post #10 of 22 (permalink) Old 12-12-2005, 08:13 AM
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I forgot about suggesting that...
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

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