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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #11  
Old 11-24-2010, 02:58 PM
nitro1965 nitro1965 is offline
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Quote:
Originally Posted by jpaul51 View Post
So is the flowmaster 50 hd that much different than the Flowmaster 50 Series Delta Flow? When I bought my truck it had the Flowmaster 50 Series Delta Flow on it and that was not loud enough for me. So i took off the resonators and put on the Flowmaster Super 44. I did not nitice any change in power between the 2. And that is going from a 3 chamber to a 2 chamber muffler. Only thing that changed was the sound.
i think the engineer said that the flowmaster 50 hd has 4" internalls for better air flow and by the way the internalls are designed .you will notice a sound difference but as far as trying to tell hp difference thats hard to tell unless you dyno it. it almost like saying how k&n cold air intake systems offer different k&n cold air intakes. depenending on which one you buy give you better hp gains but would you notice it?.
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  #12  
Old 11-24-2010, 03:01 PM
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cosbourn cosbourn is offline
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Originally Posted by nitro1965 View Post
no problem, i can care less who has what on there truck if they are happy with it cool its you the owner who should be pleased not the wannabe. i'm sure every muffler has there benifits as well as there flaws but get what is best for you and your truck.
exactly thats what makes everything unique
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  #13  
Old 11-24-2010, 03:42 PM
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GPSHSLAX GPSHSLAX is offline
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Originally Posted by cosbourn View Post
I would suggest the aeroturbine 3030xl as it is a straight through muffler and WILL provide the best performance because it doesn't have any type of baffling. BAFFLING leads to BACKPressure=less power on any new motor. the idea is to get the fastest flowing capability.
I don't think the AT3030xl is truely straight though, as is the AT3030. The XL is resonated, and I think this introduces a least one additional internal baffel. However, with the Hemi, I think you ae going to want the built in resonator to quash the drone produced with MDS engaged. I've never seen a picture of any of the aero turbine XL series muffler cut open, or flipped on end to show that "straight through" architecture ... and although I'm not from Missouri, I'm a skeptic.

On another note, the 3030 does have a baffel strictly speaking. However the baffel is a cylindrical air foil that does not impede air flow directly (as there is an unobstructed 3" connection straight through the center). They claim that this design draws excess, expanding exhaust gasses into the outter chamber of the muffler and then feeds them back in through slots that create a vortex that causes a vaccum that actual eccelerates the gas as it leave the muffler. The notion seems to violate the second law of thermodynamics in my opinion ... but the 3030 is the closest to a straight pipe I have seen in any muffler design.
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  #14  
Old 11-24-2010, 04:02 PM
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cosbourn cosbourn is offline
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Quote:
Originally Posted by GPSHSLAX View Post
I don't think the AT3030xl is truely straight though, as is the AT3030. The XL is resonated, and I think this introduces a least one additional internal baffel. However, with the Hemi, I think you ae going to want the built in resonator to quash the drone produced with MDS engaged. I've never seen a picture of any of the aero turbine XL series muffler cut open, or flipped on end to show that "straight through" architecture ... and although I'm not from Missouri, I'm a skeptic.

On another note, the 3030 does have a baffel strictly speaking. However the baffel is a cylindrical air foil that does not impede air flow directly (as there is an unobstructed 3" connection straight through the center). They claim that this design draws excess, expanding exhaust gasses into the outter chamber of the muffler and then feeds them back in through slots that create a vortex that causes a vaccum that actual eccelerates the gas as it leave the muffler. The notion seems to violate the second law of thermodynamics in my opinion ... but the 3030 is the closest to a straight pipe I have seen in any muffler design.
well hell if you want actual straight through muffler, delete it and run straight pipes!! hahaha. moroso spiral flow and glasspacks are the closest thing to straight through.

but yeah the airfoil isn't technically a baffle in my opinion, because the center 3" tube is carried through through out the muffler. it expands at the very beginning with little cut outs to let air expand around the tube and then reintroduced in at the end. it may be a little inneficient, but def better than chambered baffles.. the guys at two guys garage installed a 3030xl and they have a cutopen version and show end on end and it's straight through. i'll find the link and post it later.

the 3030xl is just bigger with a bigger case, same ratio of size. i mean it's got that packing ceramic before the airfoil to help with drone, hence the resonated feature.


here's pics of both right off their website of cutopen...first one of the xl and the second of the original.






here's that link that i was eluding to. there is one that the two guys garage has but it's way to long, so i found this one, the guys talking is an idiot but you get the point. there entire series of at mufflers, non xl, are like this.
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Last edited by cosbourn; 11-24-2010 at 04:18 PM.
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  #15  
Old 11-24-2010, 07:06 PM
Kleeeen Kleeeen is offline
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Mufflers offer next to nothing/nothing for performance gains but most know that so why am I typing this doh
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  #16  
Old 11-24-2010, 08:03 PM
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Quote:
Originally Posted by cosbourn View Post
well hell if you want actual straight through muffler, delete it and run straight pipes!! hahaha. moroso spiral flow and glasspacks are the closest thing to straight through.

but yeah the airfoil isn't technically a baffle in my opinion, because the center 3" tube is carried through through out the muffler. it expands at the very beginning with little cut outs to let air expand around the tube and then reintroduced in at the end. it may be a little inneficient, but def better than chambered baffles.. the guys at two guys garage installed a 3030xl and they have a cutopen version and show end on end and it's straight through. i'll find the link and post it later.

the 3030xl is just bigger with a bigger case, same ratio of size. i mean it's got that packing ceramic before the airfoil to help with drone, hence the resonated feature.


here's pics of both right off their website of cutopen...first one of the xl and the second of the original.






here's that link that i was eluding to. there is one that the two guys garage has but it's way to long, so i found this one, the guys talking is an idiot but you get the point. there entire series of at mufflers, non xl, are like this.
Does the other one have a cutaway with the 3030XL. I've seen this video, but this is a standard aero turbine (4040 I'm guessing since it's deisel) rather than the XL. It's the XL I've never seen a cutaway for.
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  #17  
Old 11-25-2010, 03:23 AM
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I ran a Flow 50 once for awhile...when I was slower. Maybe good on other motors, but doesn't perform well with our Hemi's...
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  #18  
Old 11-26-2010, 01:51 AM
MoparerNocar MoparerNocar is offline
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I can't say I noticed even the SLIGHTEST difference between my stock, borla cat back and the flow master I now run. I'd rather have something that sounds good than that extra .0000035464684548458hp any muffler gives you, the difference is completely un noticable. Now maybe with more mods it would change, but as far as a stock engine goes....yeah, go with what sounds good, the gain or decrease in power will not be noticable.
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