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RE: True dual exhuast V6 = lose HP & TQ ?

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RE: True dual exhuast V6 = lose HP & TQ ? - 11/9/2005 6:28:35 PM   
TJ

 

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05redfire take it easy:) I am getting it I just want to do it right the first time see below (new to V6's)



Derf
I think I am going to go this way, after your input and others dual exhaust with X pipe with max. 2.25 dia outside pipes going back to the mufflers( stock V6 mufflers & derf like you said could always change later)) like a safe way for me to go without losing to much back pressure and I should not lose any HP or TQ at all AND poss according to 05red gain a little this route. ( i know 05red I should go free flow aftermarket can't do it if was a 8 no problem)

On the V6 all the aftermarket mufflers I heard & GT take offs which I tried on my car just don't give me the sound IMO I like no offense to anyone, thats why I am going with V6 stock mufflers for me quieter but I like the sound remember I have a stick.

One last question what is the diff between going with a H pipe and X pipe (than the obivious flow) performance wise and tech wise and I should go with the X pipe insted of the H pipe right?

This has been a good thread cleared up a lot of questions for me and I think I got it and I like to thank all you guys for you input all you guys were great.





< Message edited by TJ -- 11/9/2005 7:10:45 PM >


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RE: True dual exhuast V6 = lose HP & TQ ? - 11/9/2005 8:32:57 PM   
TJ

 

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quote:

05red
errgh, It seems that no matter what you hear, you still think that you will loose torque and HP


Because I keep thinking about reported dyno results when I read the quote below along with other information at that link below, I am trying to over come this thats why like sancho805 said like to see dyno results but acording to you guys X pipe is what makes (w/2.25 pipes) the difference vers true dual exhuast .

quote:

"The comments about backpressure causing losses in torque and HP on the bottom end are coming from owners of older V6 Mustangs that have dynoed before and after exhaust changes and reported the results. Stock V6 motors have reacted poorly to true duals "
http://www.mustangforums.com/m_573138/mpage_2/key_back%2Cpressure/tm.htm


< Message edited by TJ -- 11/9/2005 9:04:42 PM >


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Post #: 22
RE: True dual exhuast V6 = lose HP & TQ ? - 11/9/2005 8:51:45 PM   
rygenstormlocke



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Thanks, your ride looks sweet. I dig the stripe on the rear! Mine is auto.


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Best 1/4: 10.97@122.09, 1.56 60ft w/4.0 V6
Best 1/4: 11.67@115.45, 1.64 60ft w/5.4 3V
Best 1/8: 7.401@92.77, 1.65 60ft w/5.4 3V
www.rygen.net/stang

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RE: True dual exhuast V6 = lose HP & TQ ? - 11/9/2005 8:54:14 PM   
rygenstormlocke



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quote:

ORIGINAL: TJ

So my next questions to you guys/derf. Do I have the following right?

I will be keeping my engine stock but want dual exhuast curb appeal (its a Mustang) slightly louder sound.

So going with a Y pipe and another stock V6 muffler on the left side (keeping my engine stock) will not affect my back pressure enought to upset the flow balance no loss of HP or TQ.through the RPM range

X pipe with free flowing mufflers on a stock engine you start to upset the flow on a stock engine.

The H pipe would be even more free flowing.

True dual exhuast with free fow mufflers on a stock engine would lose HP & TQ in low RPM range



X pipe is more free flowing than a H.

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Best 1/4: 10.97@122.09, 1.56 60ft w/4.0 V6
Best 1/4: 11.67@115.45, 1.64 60ft w/5.4 3V
Best 1/8: 7.401@92.77, 1.65 60ft w/5.4 3V
www.rygen.net/stang

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Post #: 24
RE: True dual exhuast V6 = lose HP & TQ ? - 11/9/2005 9:51:20 PM   
socool9004


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So, whats the difference between true duels vs an H pipe...isnt it one in the same in a sence?

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Post #: 25
RE: True dual exhuast V6 = lose HP & TQ ? - 11/9/2005 11:53:25 PM   
StupidTodd

 

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quote:

ORIGINAL: socool9004

So, whats the difference between true duels vs an H pipe...isnt it one in the same in a sence?


An H is connected (like an H)... true duals have no interconnect.

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Post #: 26
RE: True dual exhuast V6 = lose HP & TQ ? - 11/24/2005 7:22:53 PM   
GT05


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IDK why you would run a "true" dual on a V6. Basically you have 2 GEO Metro's now. You might gain a lil horsepower but you'll lose torque. And what's up with those lil fog lights on the V6? Is that from the factory, or is that some sad attempt to look like a V8. BTW, unless you're worried about insurance, WHY OH WHY!?!? would you get a V6 Pusstang!!!! 210hp lol.
My old 2000 Honda Accord can smoke you V6's all day!! (227hp 211tq, and that's with a 4 speed)
Bottom line, you should prolly get an X pipe, that would solve your back pressure issues. Or just do a single to Y pipe and put some nice tips on and you'll be doing good.

< Message edited by GT05 -- 11/24/2005 7:30:07 PM >

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Post #: 27
RE: True dual exhuast V6 = lose HP & TQ ? - 11/24/2005 9:17:45 PM   
StupidTodd

 

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quote:

ORIGINAL: GT05
IDK why you would run a "true" dual on a V6.

Easy: Twin Turbos

quote:

ORIGINAL: GT05
And what's up with those lil fog lights on the V6?

Those are the 06 V6 factory fog lights.

quote:

ORIGINAL: GT05
WHY OH WHY!?!? would you get a V6 Pusstang!!!! 210hp lol.

Because I didn't want to be associated with the a$$hole Mustang GT crowd that thinks they're better than everyone else, that's why.

(notice, I'm not saying all Mustang GT owners, just those with the weird superiority complex, most GT owners are wonderful helpful people, but then there are the "others"... why can't we all just get along?)

Besides, it's more fun to play with the V6. Any 'tard can pay someone to make 500HP out of their GT. It takes some skill and patients to do it with the V6 (and make it reliable). The aftermarket is so small, you end up having to do a lot of the custom work yourself.

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Post #: 28
RE: True dual exhuast V6 = lose HP & TQ ? - 11/25/2005 1:21:48 PM   
chrisc


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i have seen dynos of other cars that had true duals put on (instead of a single) and some of the smaller engined cars did lose a bit of power, not really any significant amount tho, like 2hp

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RE: True dual exhuast V6 = lose HP & TQ ? - 11/25/2005 4:20:27 PM   
Pyrat



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LOL, ouch, that had to hurt...

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RE: True dual exhuast V6 = lose HP & TQ ? - 7/14/2007 11:16:20 AM   
Trmachuno


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GT05-what are u talking about, your accord probably couldn't even beat a stock 05 V6 let alone a slightly modded one with a 4 speed. You do know that extra gear is worth approximately 3 tenths in the 0-60 and 1/4. That would equate to it being a 240HP 270Torque 4 speed stock mustang. As u can see ur little bitch ass accord would get eaten alive. Even if it's a coupe that weight difference would mean nothing cause there so close. So shut ur mouth unless u know what ur talkin about spoiled little GT bitch.

PS-I no I can't take a GT with my car but I'll smoke any N/A Accord u want to throw at me!

Peace

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Post #: 31
RE: True dual exhuast V6 = lose HP & TQ ? - 7/14/2007 5:28:07 PM   
FyouGitive


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My friend the automotive genius has contacts in the business, among them a company who do much of the R&D for Ford. My friend got a Ford p/u with the 4.0 V6. He asked the R&D guy which dual exhaust he should get. R&D said, "Naah, don't waste your money on duals for a 4.0 V6; they sound sweet, and look good from the back, but power change is negligible, maybe even a little deleterious. Get a well-designed, tuned, single exhaust with maximum 2.5" pipes and a FRPP 5230GTA muffler".

That's what my friend did, and I copied him. Well not really. I just left the already big pipes in place. Simple, cheap, and very satisfactory. You should hear the sweet song of that Mustang in the upper reaches of RPM. Very nice.

Of course I like style, and duals have a certain style you'll never get with a single exhaust, no matter how much power they steal. Maybe that's the way to go ...

But not now.



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RE: True dual exhuast V6 = lose HP & TQ ? - 7/14/2007 7:40:52 PM   
rmays06



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Generally with these 4.0 you do lose power and on top of that is minimal but you do put extra weight on the car.
Also remember that each car is different and you might get smaller loses in one over another.

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RE: True dual exhuast V6 = lose HP & TQ ? - 7/14/2007 8:18:29 PM   
King Cash


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Great info guys...this helped with my choice about gettin duals!

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RE: True dual exhuast V6 = lose HP & TQ ? - 7/14/2007 8:56:05 PM   
rmays06



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http://www.v6power.net/vb/showthread.php?t=25551
Check out this thread maybe it will lend you some insight.

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Post #: 35
RE: True dual exhuast V6 = lose HP & TQ ? - 7/14/2007 10:08:55 PM   
davesyo

 

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TJ

I had all the same questions in mind before I did my exhaust so I decided to be conservative and I went with the ninosport dual y kit and gt takeoffs since I'm thinking of leaving it basically stock. By the way the v6 mufflers as far as I know can only be use for the right side.

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Post #: 36
RE: True dual exhuast V6 = lose HP & TQ ? - 7/15/2007 8:22:38 AM   
07 Stang


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quote:

ORIGINAL: FyouGitive

My friend the automotive genius has contacts in the business, among them a company who do much of the R&D for Ford. My friend got a Ford p/u with the 4.0 V6. He asked the R&D guy which dual exhaust he should get. R&D said, "Naah, don't waste your money on duals for a 4.0 V6; they sound sweet, and look good from the back, but power change is negligible, maybe even a little deleterious. Get a well-designed, tuned, single exhaust with maximum 2.5" pipes and a FRPP 5230GTA muffler".

That's what my friend did, and I copied him. Well not really. I just left the already big pipes in place. Simple, cheap, and very satisfactory. You should hear the sweet song of that Mustang in the upper reaches of RPM. Very nice.

Of course I like style, and duals have a certain style you'll never get with a single exhaust, no matter how much power they steal. Maybe that's the way to go ...

But not now.




Good point, but I'm getting them anyway. Too bad Ford didn't put duals on our cars like they did with the V6 Fusion......go figure!

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RE: True dual exhaust V6 = lose HP & TQ ? - 7/16/2007 7:59:23 AM   
p51mstg


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quote:

ORIGINAL: GT05

And what's up with those lil fog lights on the V6? .


I thought Ford has done a fairly decent job promoting the Pony Package.  Look it up. 


As for dyno tests on different exhaust setups, I think Justin over at VMP has done that - check the vendor forums for VMP, I think that's where I saw it.

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RE: True dual exhaust V6 = lose HP & TQ ? - 7/16/2007 8:02:42 AM   
28HopUp



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quote:

ORIGINAL: p51mstg

quote:

ORIGINAL: GT05

And what's up with those lil fog lights on the V6? .


I thought Ford has done a fairly decent job promoting the Pony Package.  Look it up. 


As for dyno tests on different exhaust setups, I think Justin over at VMP has done that - check the vendor forums for VMP, I think that's where I saw it.


Somebody resurrected this thread from 2006, so back then the PP may not have been as popular as it is now.

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Post #: 39
RE: True dual exhuast V6 = lose HP & TQ ? - 7/16/2007 8:29:41 AM   
heslekrants


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I installed dual GT mufflers (from a manual car) on my  wife's 06 Pony without an X pipe 1st using 2 1/4" pipes from the cats back.  Had a little vibration at idle and a dead spot at 5500rpms.  It had a ricer sound above 3000rpms and lost performance, 1/4 time went from 15.7 to 15.9.

Installed an X pipe and it sounded really good.  Still had a little vibration at idle and a dead spot at 5500rpms.  Got 206rwhp on the dyno.  Note that the dead spot at 5500rpms caused the dyno to spike from ~195 to 206rwhp at 5500rpms on 4 runs.  I felt this at the track as well.  1/4 time dropped to 15.5.

Installed a C&L cold air package & custom tune.  Idles smooth, the dead spot is gone.  Haven't been to the dyno yet.  1/4 time dropped to 14.8, had a hard time hooking up. 

Bang for the buck a single GT muffler is the way to go unless you're going for the big power adders.  If you go duals you need a custom tune.  For me the duals were just for the looks.  The custom tune was to get the car to run right.  Worth every penny and I have a very happy wife  

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2006 Pony Mustang Auto
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C&L Intake
Helix Throttle Body Spacer
Diablo Predator Tuner
Full dual exhaust system with x pipe + GT Takeoffs
GT rear bumper/side skirts
Hoodscoop
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