Dual turn down exhaust?!? - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 01-05-2005
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Dual turn down exhaust?!?

hi all, i'm thinkin of re-doing my exhaust setup, and i was thinkin this....

a flowmaster (either 40 or Super 40) dual exhaust muffler, 3" pipe from cat to muffler, then dual 3" turn down tips after muffler.

how would this sound/perform? i've been told that single exhaust gives our trucks more power gain w/ correct pipes, but i'm going for more sound than anything.

thanks!
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  #2  
Old 01-05-2005
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Your going to loose all the backpressure with 3" piping, its too much.. And will prob end up just hurting your engine in the end, valves and what not.

SOHC needs backpressure to build torque, as do all v6 engines.... Biggest would be 2.5" without sacrificing any power..

And, if its not noticable, why go dual... Just dump it at the muffler.. Its the tips what makes the exhaust rumble...

Last edited by FoMoCoFiddy; 01-05-2005 at 07:43 AM.
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  #3  
Old 01-05-2005
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my buddy has a 3.0 edge, with a 3" pipe from cat to muffler, Flowmaster Super 40 SI/SO with a turn down, and it sounds badass, i was just wondering if it would make it any louder with a dual turn down vs single turn down

plus i think my factory pipes are like 2.25...maybe 2 inches, so is the extra 1/4 - 1/2 inch size going to make a differnce?
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  #4  
Old 01-05-2005
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Well, the bigger pipes do make it echo more..

Like mine, are 2.5" with 3.5" tips.. And at full throttle, i cant hear the v8 im racing...

Its just, i wouldnt want to see someone hurt thier engine, by doing this, i dont think its a good idea..

Anyone will tell you. 3" is too much for a v6...

To get more sound, i suggest going and getting a glasspack.. That would be loud.. Or dual it out with bigger tips..

Coy has a video of me and him racing, and you cant hear his truck, all you hear is my exhaust, "when i had my flowmaster and 3.5" tips" ...

Do what you want, but i think most will tell you 3" is too much

Just tryin to help.
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  #5  
Old 01-05-2005
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I noticed a gain and others will tell you (not from this board) that a 2.5" fromthe cat to the muff and 2.25 DUAL out and turndowns will increase the HP and torque.

Please don't dump it after the mufler or you'll lose HP and Torque..... backpressure is great for getting torque so think of blowing through a straw, which gives you more backpressure? the shorter one? or the longer one. If you want a pic of my setup just lemme know.
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  #6  
Old 01-05-2005
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ah, thanks all for help

i've always heard that glasspacks sounded bad...like just....loud/annoying...i like the flowmaster rumble...i just want more of it and it to be louder! haha....

i just hate haveing my ***** of a stock tail pipe stickin out the side..i wanna do something to it..i just dont know what...i like the dual exhaust with the 45 degree angle tips...i just dont know how it'd look on my truck....and i could just clean it up and be smooth (kinda) and just dump it....

i dunno....any ideas are welcome
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  #7  
Old 01-05-2005
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is this the sound you are looking for?

http://cdorton.com/stl-web/gallery/a...2/MOV00752.mpg
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  #8  
Old 01-05-2005
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if you dump it you lose HP and Torque... althought it doens't sound like you are looking for performance, jsut a nice hummin sound.
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  #9  
Old 01-05-2005
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I don't think 2 feet of exhaust tubing will amount to any torque you could notice. Especially since most backpressure is produced by the cats, which you won't touch.

If you're worried about backpressure, don't get such a large I.D. tubing. 2.25" dumped probably equals 2.5" exiting the stock location.
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  #10  
Old 01-05-2005
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My trucketh was the bestest sounding 4.0 EVAR!! :D
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Old 01-06-2005
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I have 2-2.25's that go into the 2.5in tips...i have the lightning style and i think i have pretty good backpressure... all i know i can hear it backfire when i let up on the gas
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  #12  
Old 01-06-2005
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Quote:
Originally Posted by Mnemonic
I don't think 2 feet of exhaust tubing will amount to any torque you could notice. Especially since most backpressure is produced by the cats, which you won't touch.

If you're worried about backpressure, don't get such a large I.D. tubing. 2.25" dumped probably equals 2.5" exiting the stock location.

Think about how much exhaust is coming out of that muffler dude....

anyways make your own descision but you see the people running better #'s... what do they have? oh yeah a FULL exhaust nough said... This is one of the reasons I haven't posted as much anymore. Take my advice if you want but when your performance suffers you can only blame it on yourself.
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Old 01-06-2005
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^^^ I agree
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  #14  
Old 01-06-2005
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Don't get mad if I think something different than you. You offered your thoughts, I offered mine. That's how a bulletin board works.

Quote:
Think about how much exhaust is coming out of that muffler dude....
I was wrong, maybe 3-4 feet? Big whoop Exhaust restrictions occur at the valves, exhaust manifold, connecting pipe, catalytic converter, exhaust pipe, and muffler.
3-4 feet of tailpipe isn't that restrictive compared the rest of the system.

Maybe you're just splitting hairs, because I really don't think a tail pipe has much to do with anything on a vehicle with a full exhaust system. You'd be hard pressed to find a dyno example on the web to show any real difference.

Also remember, more backpressure may equate to better low-RPM Troque, but at a loss of High RPM Horsepower. If this isn't true, then why do people buy headers and exhaust cutouts?


Either way, I don't think TippnOver is gonna beat his head against the steering wheel because of the lack of power he has, if he goes with dumped exhaust. :)

Last edited by Mnemonic; 01-06-2005 at 04:33 PM.
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  #15  
Old 01-06-2005
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my 2.3 it dumped with duals now and i think it has alot more get up around 3000 RPM
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Old 01-06-2005
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The backpressure is built mostly before the muffler.. The piping doesnt really matter after, it will slightly, but most backpressure is built at the cats before the muffler...
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  #17  
Old 01-06-2005
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funny, i know 2 guys running 3inch piping....

ones my buddy Gerry on his 94 4.0
http://www.cardomain.com/id/veener1
other is my buddy wed on his 97 4.0
http://www.tigerteam.net/wed/97truck.html

and ones running in the 14s and the other is running in the 13s in the quarter mile
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  #18  
Old 01-06-2005
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on my 2.3 i'm running 2.5 from the cat
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  #19  
Old 01-07-2005
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I got one in two out muffler with 2.5" pipes and 4"x22" tips with my 4.0 and it still has backpressure and sounds great. I ain't tryin to rip them tires or run the 1/4 mile so I wanted sound and appearence over performance in this case. Here's what it looked like it almost one year ago. (I miss the snow!)

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  #20  
Old 01-07-2005
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Quote:
Originally Posted by Gay-briel
funny, i know 2 guys running 3inch piping....

ones my buddy Gerry on his 94 4.0
http://www.cardomain.com/id/veener1
other is my buddy wed on his 97 4.0
http://www.tigerteam.net/wed/97truck.html

and ones running in the 14s and the other is running in the 13s in the quarter mile
Look at what upgrades they have, they hafta run 3" cause if they don't the backpressure will blow their heads off LOL.
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  #21  
Old 01-07-2005
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Quote:
Originally Posted by PickupMan92
Look at what upgrades they have, they hafta run 3" cause if they don't the backpressure will blow their heads off LOL.
No kidding, theres a reason thier running 3" piping, look at the upgrades.. Apples and Oranges Scott, his is a stock 4.0SOHC...
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Old 01-07-2005
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  #23  
Old 01-07-2005
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Quote:
Originally Posted by PickupMan92
Look at what upgrades they have, they hafta run 3" cause if they don't the backpressure will blow their heads off LOL.
Quote:
Originally Posted by FoMoCoEdge
No kidding, theres a reason thier running 3" piping, look at the upgrades.. Apples and Oranges Scott, his is a stock 4.0SOHC...


yeah i know, its just that you guys were making it sound like theres no practical use for a 3inch exhaust and that NO ONE should run it on a V6, and i just wanted to play the ******** and prove you wrong, since I know of two V6s running 3inch exhaust....

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  #24  
Old 01-08-2005
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Quote:
Originally Posted by Trevelyn1015
damn good deal.
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  #25  
Old 01-08-2005
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i feel i have enuf power in low range rpm's, i actually do need it in the upper, i'm lagging like a *****
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