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which would flow better single 3" from downpipe OR...............

Discussion in 'Turbo Tech Questions' started by 351turbo, Dec 21, 2008.

  1. 351turbo

    Joined:
    Feb 14, 2003
    which would flow better single 3" from downpipe OR...............

    3" downpipe into dual 2.5" ?
     
    351turbo, Dec 21, 2008
    #1

  2. mustangcobra438

    Joined:
    Mar 18, 2008
    Re: which would flow better single 3" from downpipe OR...............

    I went from single 3'' to 3'' to dual 2-1/2 and slowed down to a 9.70 from a 9.50 in the 1000ft. :bang: I changed i out at the track back too single 3'' and the very next pass i ran a 9.50. :2thumbs:
     
    mustangcobra438, Dec 21, 2008
    #2

  3. 351turbo

    Joined:
    Feb 14, 2003
    Re: which would flow better single 3" from downpipe OR...............

    ok , i will stay with the single. Where can i get a 3" 60 degree mandrel bend , looked everywhere , i have a standard bend now.....................
     
    351turbo, Dec 21, 2008
    #3

  4. brianj5600

    Joined:
    Jul 16, 2003
    Re: which would flow better single 3" from downpipe OR...............

    Something was wrong if 2x2.5" pipes slowed the car down. 2x2.5" should flow as much as a 3.5" pipe with a good transition and the same mufflers.
     
    brianj5600, Dec 21, 2008
    #4

  5. 86lxnotch

    Joined:
    Apr 2, 2006
    Re: which would flow better single 3" from downpipe OR...............

    i agree with brian on this, something is amiss if it slowd the car down like that
     
    86lxnotch, Dec 21, 2008
    #5

  6. mustangcobra438

    Joined:
    Mar 18, 2008
    Re: which would flow better single 3" from downpipe OR...............

    Ill deff check into it then, it didnt make sense to me either. I may never now what it was because im in the process of building a new kit for the cobra and some better injection.
     
    mustangcobra438, Dec 21, 2008
    #6

  7. mrkindweiler

    Joined:
    Dec 2, 2008
    Re: which would flow better single 3" from downpipe OR...............

    www.mandrel-bends.com :cheers:
     
    mrkindweiler, Dec 22, 2008
    #7

  8. ratedz

    Joined:
    Feb 18, 2007
    Re: which would flow better single 3" from downpipe OR...............

    I'm running a single 3" downpipe to dual 3" pipes dumped at the axle - no mufflers. I picked up roughly 4lbs of boost by taking the Super Turbo mufflers off.
     
    ratedz, Dec 22, 2008
    #8

  9. mustangcobra438

    Joined:
    Mar 18, 2008
    Re: which would flow better single 3" from downpipe OR...............

    Great now i have to change my picture.
     
    mustangcobra438, Dec 22, 2008
    #9
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