Dismiss Notice



Register Today It's free! This box will disappear once registered!

Dual or Single

Discussion in 'Modified Explorations!!' started by DominicanX, December 12, 2004.

^^Searches ExplorerForum.com^^
  1. DominicanX

    DominicanX Active Member

    Joined:
    February 10, 2004
    Messages:
    676
    Likes Received:
    0
    Trophy Points:
    16
    City, State:
    Fairfax, Virginia
    Year, Model & Trim Level:
    99 Sport
    What is a better idea performance wise. A dual cat-back exhaust system or stay with the single. Ethier way I would use two Super 40 Series or One for the single set up.

    I was just wondering with which I would get more torque and HP.

    I have a SOHC 99 Sport.
     
  2. Support EF

    Join the Elite Explorers for $20

    Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose fix problems yourself and learn which modifications work without having to experiment on your own. Elite Explorer members see practically no ads, can add their own profile photo, upload photo attachments in all forums, and Media Gallery, create more private Conversations, and more. Join Today. Your support is greatly appreciated.



  3. DominicanX

    DominicanX Active Member

    Joined:
    February 10, 2004
    Messages:
    676
    Likes Received:
    0
    Trophy Points:
    16
    City, State:
    Fairfax, Virginia
    Year, Model & Trim Level:
    99 Sport
    Oh yeah and I would use 2.25 piping althe way through to keep the low end power.
     
  4. matt97

    matt97 Active Member

    Joined:
    March 3, 2003
    Messages:
    152
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    windsor,virginia
    Year, Model & Trim Level:
    97 xlt 4x4
    I would go with a single 2.25" or 2.50" pipe to keep the low end torque
     
  5. dman726749

    dman726749 Well-Known Member

    Joined:
    July 10, 2003
    Messages:
    3,714
    Likes Received:
    0
    Trophy Points:
    46
    City, State:
    Greenwood Indiana
    Year, Model & Trim Level:
    96 xlt
  6. spindlecone

    spindlecone B

    Joined:
    April 30, 2004
    Messages:
    4,836
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    San Jose, Calif
    Year, Model & Trim Level:
    2003 sport trac
  7. osker75

    osker75 Active Member

    Joined:
    October 20, 2003
    Messages:
    229
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    houston, texas
    Year, Model & Trim Level:
    99 Jeep Wrangler
    ahh who wants performance add a little red neck into your life and add some straight pipes haha go with single dude
     
  8. DominicanX

    DominicanX Active Member

    Joined:
    February 10, 2004
    Messages:
    676
    Likes Received:
    0
    Trophy Points:
    16
    City, State:
    Fairfax, Virginia
    Year, Model & Trim Level:
    99 Sport
    So single will give me the most power and what if I did single in and dual out from the muffler would that cause any performance gains or loses
     
  9. spindlecone

    spindlecone B

    Joined:
    April 30, 2004
    Messages:
    4,836
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    San Jose, Calif
    Year, Model & Trim Level:
    2003 sport trac
    Dual out, more restriction, less H.P, but minimal, something you would never notice, just do it
     
  10. TJM623

    TJM623 Active Member

    Joined:
    November 21, 2004
    Messages:
    766
    Likes Received:
    0
    Trophy Points:
    16
    City, State:
    Strongsville, Ohio
    Year, Model & Trim Level:
    '98 XLT
    that's what i wanna do...to me i'll take appearance over performance (i'm not a race car for god sake =) ) call me rice if u want (i did used to drive a mazda neways lol )
     
  11. spindlecone

    spindlecone B

    Joined:
    April 30, 2004
    Messages:
    4,836
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    San Jose, Calif
    Year, Model & Trim Level:
    2003 sport trac
    TJ
    this would be way cool, run a catback pipe past the rear diff, Y the pipe and run 4 shorty muffs,dual out, you could run 8, 6 inch cans out the back, no ricer has ever done that, would be to die for:)
     
  12. DominicanX

    DominicanX Active Member

    Joined:
    February 10, 2004
    Messages:
    676
    Likes Received:
    0
    Trophy Points:
    16
    City, State:
    Fairfax, Virginia
    Year, Model & Trim Level:
    99 Sport
    So performance wise what is the reason that single is better than dual for horsepower. I'm not an exhaust person so I do not know.
     
  13. bmxking5

    bmxking5 Well-Known Member

    Joined:
    May 2, 2004
    Messages:
    4,797
    Likes Received:
    2
    Trophy Points:
    0
    City, State:
    Monroe, GA
    Year, Model & Trim Level:
    '93 Sport & '96 XLT
    You have to have a certain amount of backpressure to get optimum performance.
     
  14. spindlecone

    spindlecone B

    Joined:
    April 30, 2004
    Messages:
    4,836
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    San Jose, Calif
    Year, Model & Trim Level:
    2003 sport trac
    Read all of the above, do what people that have had exhaust systems done, or go your way, will not make a hill of beans differance that you will notice
     
  15. hunterdan

    hunterdan Well-Known Member

    Joined:
    October 21, 2004
    Messages:
    1,383
    Likes Received:
    1
    Trophy Points:
    48
    City, State:
    Fairless Hills, Pa
    Year, Model & Trim Level:
    2010 Chevy Silverado
    To get the best performance you need 2 basic things, sufficient air flow, and speed. You need to find a combination of of the 2, enough CFM to let the motor breathe, but not too much as to slow down the exhaust flow. To keep the exhaust at a high temp, a smaller pipe is good, the smaller pipe doesn't allow the exhaust to cool down as much, keeping the temp up, and the speed up. When the exhaust cools down, it slows down. The higher exhaust flow speeds are what give you the low end torque. But this limits the top end because the pipe is not large enough to flow the required CFM. But, if you have too much pipe, it cools the exhaust down too much and causes a drop off in low end torque. You need to find a pipe that flows just enough CFM for the top speed of the motor, but is small enough to keep the exhaust temps from dropping too much and reducing exhaust flow speed. The term backpressure is really kind of bogus, what they are referring to as backpressure is exhaust flow speed.

    Dan
     
  16. DominicanX

    DominicanX Active Member

    Joined:
    February 10, 2004
    Messages:
    676
    Likes Received:
    0
    Trophy Points:
    16
    City, State:
    Fairfax, Virginia
    Year, Model & Trim Level:
    99 Sport
    Dan- so in your opinion what would be an ideal tubing size?
     
  17. hunterdan

    hunterdan Well-Known Member

    Joined:
    October 21, 2004
    Messages:
    1,383
    Likes Received:
    1
    Trophy Points:
    48
    City, State:
    Fairless Hills, Pa
    Year, Model & Trim Level:
    2010 Chevy Silverado
    My guess would be somewhere in the 2.25" to 2.5" range. I dont know the requirements for the motor, and the flow ratings of the cats and mufflers. On the SOHC, the 2.5" would probably be best, and 2.25" on the ohv, but either one would probably be a good choice. If your looking to do other mods, then 2.5" would probably be best. But I doubt you would notice much difference between the 2. The only way to be completely sure would be to use both tube sizes, and then some others and check them on the dyno under similar circumstances.

    Dan
     
  18. DominicanX

    DominicanX Active Member

    Joined:
    February 10, 2004
    Messages:
    676
    Likes Received:
    0
    Trophy Points:
    16
    City, State:
    Fairfax, Virginia
    Year, Model & Trim Level:
    99 Sport
    Alright got my system done. It's so custom it's rediculous. Aparently my stock system was dual in and single out. So I used one Super 40 Series muffler and did dual in and dual out. Shop had to fab two "y" pipes because the actual muffler was single in single out. Everything fints snug and tight and it sounds even better. I can also spin my tires on dry pavement. What that equals in hp I don't know. Oh yeah used 2.5 piping all the way through except for the "y" pipes at the muffler which are 3 inch pipes.
     
  19. celly

    celly disturber of the peace

    Joined:
    July 28, 2004
    Messages:
    6,860
    Likes Received:
    1
    Trophy Points:
    48
    City, State:
    calgary
    Year, Model & Trim Level:
    99 eb 5.0 awd
    I keep reading that single is better for performance. Dual looks better.
     






We Support Our Troops!