Witch one flows better?
Thread Starter
TECH Fanatic
iTrader: (147)
Joined: Feb 2003
Posts: 1,067
Likes: 1
From: Tullahoma,Tn
Which one flows better? a nice Ypipe and a cutout(OPEN) or a 3" true dual with an xpipe with 1 chamber flowmasters??
Last edited by Ego Killer; Nov 30, 2006 at 07:22 PM.
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
you'll see better performance through the true dual system with 3" single chamber flows. it's not all about flow. flow is VASTLY overrated. a y-pipe with an open cutout and true duals w/single chambers will likely BOTH flow very similarly and support your engine WELL PAST the horsepower rating your car likely has. what you need to worry about is scavenging as this is where the real power comes in.
true duals are simply better for power. they take each manifold and scavenge them individually. since you don't have two different sides of the engine's air colliding at a single point into the I-pipe of a y-pipe, the exhaust gases simply leave more efficiently. not to mention, the X-pipes and H-pipes simply scavenge better due to the way it balances the pulses of gas.
in short, true duals just produce more power. flow doesn't matter as a good catback and true duals will both support the horsepower level you're making. it's about scavenging and exhaust velocity at this point, and true duals are the winner hands down.
true duals are simply better for power. they take each manifold and scavenge them individually. since you don't have two different sides of the engine's air colliding at a single point into the I-pipe of a y-pipe, the exhaust gases simply leave more efficiently. not to mention, the X-pipes and H-pipes simply scavenge better due to the way it balances the pulses of gas.
in short, true duals just produce more power. flow doesn't matter as a good catback and true duals will both support the horsepower level you're making. it's about scavenging and exhaust velocity at this point, and true duals are the winner hands down.
TECH Addict
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Originally Posted by ChocoTaco369
true duals are simply better for power. they take each manifold and scavenge them individually.
Originally Posted by ChocoTaco369
since you don't have two different sides of the engine's air colliding at a single point into the I-pipe of a y-pipe, the exhaust gases simply leave more efficiently. not to mention, the X-pipes and H-pipes simply scavenge better due to the way it balances the pulses of gas.
Also LG who make arguably the best headers for Corvettes actually turn their X pipe into a Y pipe for their race cars.
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by 300bhp/ton
Actually that would be the header not the mid pipe.
Originally Posted by 300bhp/ton
When I spoke to a Magnaflow engineer a while back he came to the conclusion that a Y pipe scavengies in the same manner as an X pipe.
Also LG who make arguably the best headers for Corvettes actually turn their X pipe into a Y pipe for their race cars.
Also LG who make arguably the best headers for Corvettes actually turn their X pipe into a Y pipe for their race cars.
-flow
-scavenging
-exhaust velocity
you need all three. a y-pipe may flow nearly as well as an X-pipe/H-pipe and it may scavenge decently, but when the gases collide, they slow. true duals show more power than y-pipe setups because the gases flow independently. they don't interfere with each other except when they balance out towards the end. true duals are just better than a y-pipe. period.
i can't stress this enough: BOTH ARE NOT EQUAL. a y-pipe setup will NEVER have the potential of a true dual setup, and even on a stock motor with stock power, the perfect true dual system will outperform the perfect y-pipe setup. guaranteed.
Thread Starter
TECH Fanatic
iTrader: (147)
Joined: Feb 2003
Posts: 1,067
Likes: 1
From: Tullahoma,Tn
Originally Posted by chrs1313
both are around equal, if you want to lose some weight go with the duals...or save the money and just get a cutout
the reason I ask is becouse I have the TD set up I described its sounds awsome..but its so damn load in the car and rattles my console..and I was thinking if power is equal I might change..
I had LT's, ORY, open cutout and a hooker catback. It was loud! It is deffinately louder than my duals. Maybe thats because the cut out was under the car and the duals go out the back. The duals sound a million times better IMO...especially 1 chambers!
Trending Topics
My car sounds like stock with the cutout closed and a beast when it is open, so you have the best of both worlds...dont listen to taco yeah duals may be a little better but i doubt it is that much, i mean if you think about it the gases collide too in the X pipe just like in the Y...the reason for doing dual should be sound, or lose weight, cutout is just so much more practical...i mean look at my times think it doesn't work...
Originally Posted by Ego Killer
the reason I ask is becouse I have the TD set up I described its sounds awsome..but its so damn load in the car and rattles my console..and I was thinking if power is equal I might change..
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by chrs1313
My car sounds like stock with the cutout closed and a beast when it is open, so you have the best of both worlds...dont listen to taco yeah duals may be a little better but i doubt it is that much, i mean if you think about it the gases collide too in the X pipe just like in the Y...the reason for doing dual should be sound, or lose weight, cutout is just so much more practical...i mean look at my times think it doesn't work...
Originally Posted by ChocoTaco369
don't listen to me? don't listen to physics. duals produce more hp/tq than a y-pipe setup. they are better on any and every setup assuming they're a quality setup. case. closed.
Originally Posted by ChocoTaco369
you'll see better performance through the true dual system with 3" single chamber flows. it's not all about flow. flow is VASTLY overrated. a y-pipe with an open cutout and true duals w/single chambers will likely BOTH flow very similarly and support your engine WELL PAST the horsepower rating your car likely has. what you need to worry about is scavenging as this is where the real power comes in.
true duals are simply better for power. they take each manifold and scavenge them individually. since you don't have two different sides of the engine's air colliding at a single point into the I-pipe of a y-pipe, the exhaust gases simply leave more efficiently. not to mention, the X-pipes and H-pipes simply scavenge better due to the way it balances the pulses of gas.
in short, true duals just produce more power. flow doesn't matter as a good catback and true duals will both support the horsepower level you're making. it's about scavenging and exhaust velocity at this point, and true duals are the winner hands down.
true duals are simply better for power. they take each manifold and scavenge them individually. since you don't have two different sides of the engine's air colliding at a single point into the I-pipe of a y-pipe, the exhaust gases simply leave more efficiently. not to mention, the X-pipes and H-pipes simply scavenge better due to the way it balances the pulses of gas.
in short, true duals just produce more power. flow doesn't matter as a good catback and true duals will both support the horsepower level you're making. it's about scavenging and exhaust velocity at this point, and true duals are the winner hands down.
Jesus Tony!