X-Pipe what does it really do????
10-01-2007, 10:09 PM
#1
X-Pipe what does it really do???? I am pretty sure an x pipe balances out the flow between pipes and has several advantages like sound quality but what will it do for-
Top end power/torque?
Mid range power/torque?
Low end power/torque?
and anything else you want to add is helpfull!!!
Top end power/torque?
Mid range power/torque?
Low end power/torque?
and anything else you want to add is helpfull!!!
10-01-2007, 10:34 PM
#3
yea pretty much its primary purpose is to balance out the flow from the 2 manifolds, I would def. do some kind of crossover pipe to balance out the pressure, but as far as X or H I know the sounds are a little different but I dont think there is any huge power gains either way but someone can correct me if im wrong on that
10-01-2007, 10:59 PM
#5
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From my understanding the H pipe serves to relieve one bank with two cylenders firing emidiately one after the other. The X pipe also serves the same function but with a scavenging affect. It uses the exhaust pulses from one bank to scavenge the opposite bank helping to draw in more fuel/air to the cylenders.
The header mounted crank case evac systems work off the exhaust pulses to pull a vacuum in the same way.
In both cases though the scavenging affect will not work unless you have a very free flowing system. If your running restrictive mufflers dont waist your money on the X pipe, it will just be one more bend in the system and will serve no function.
If im wrong or misleading im sure someone will chime in and correct me.
The header mounted crank case evac systems work off the exhaust pulses to pull a vacuum in the same way.
In both cases though the scavenging affect will not work unless you have a very free flowing system. If your running restrictive mufflers dont waist your money on the X pipe, it will just be one more bend in the system and will serve no function.
If im wrong or misleading im sure someone will chime in and correct me.
Last edited by Jeremiah; 10-01-2007 at 11:15 PM.
10-01-2007, 11:14 PM
#6
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Originally Posted by 180ls1
i personally dont think is is worth the extra $100 or so for the x pipe. i will be dumping the bulets exhaust before the rear axle.
I think an X might benifit slightly on some applications with this set up since the scavenging affect would be at its strongest due to there being zero restriction and the pulses at a much higher velocity?
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10-02-2007, 10:29 AM
#8
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It doesn't really provide much scavenging as the exhaust pulses have to be timed to bring the reversion wave to the exhaust port on the head in time for the that valve to open. Plus, by the time the pulse has been diluted into the stream behind the collector, much of its energy is lost. But it does provide some cleaning of the exhaust system behind the collector and helps support scavenging in the header. Plus it offers a two paths to low pressure behind the X which helps flow resistance and balance. X pipes are more effective than H pipes as the merge is gentle. They sound cool too!
10-02-2007, 10:44 AM
#9
I'd just run the straight pipes like you said, though I'm no expert. However, when I open up my dual cutouts, which is kind of like straight pipes with no muffler, my car feels doggy from idle to about 2300 RPM or so. It's too much for my stock internal, bolt-on LS1.
How much overlap does your cam have?
How much overlap does your cam have?
10-02-2007, 06:21 PM
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The X-pipe is known for higher end numbers, while the H-pipe will give you some more low end torque. Other than that, it depends which one you like more. The H-pipe is a deeper, more muscle car sound while the X-pipe is known as "nascar", or a little raspy.
10-02-2007, 09:23 PM
#13
I'd just run the straight pipes like you said, though I'm no expert. However, when I open up my dual cutouts, which is kind of like straight pipes with no muffler, my car feels doggy from idle to about 2300 RPM or so. It's too much for my stock internal, bolt-on LS1.
How much overlap does your cam have?
How much overlap does your cam have?
10-26-2007, 02:02 PM
#19
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*dueling banjos in the background* Bubba dunchu go lissen too that theerrr cityslicker. Opun hedders make more of that horsepower or whathaveya. Backpressure with dem mufflers keepyer exhaust valve thingies from burnin up and boost tuorqeynisness.I usedtaculd have an h-pipe thing on me oldskool chevelle and it would beat up on any of these newfangled fuel injectamated vEEEEhickles. Carb-raters are mo betta Bubba.
