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Wastegate dump

Discussion in 'Forced Induction' started by bigy34, Jan 26, 2010.

  1. bigy34

    bigy34 New Member

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    I got a civic b20 turboed anyways its got a waste gate dump on it, but i hat it because the car always stinks inside, do i need to do anything special to tie it into the down pipe?
     
  2. Bobby17772

    Bobby17772 New Member

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    have a hole drilled into your down pipe, and have the drump pipe welded where the whole is drilled. like thats how it's supposed to be
     
  3. bigy34

    bigy34 New Member

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    thats kinda what i figured just didnt know if there was any thing else i needed to do but guess not, thanks
     
  4. DESPAIN

    DESPAIN yep....mmhhm.......yep...

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    imo it is better to just dump it to the atmosphere......... just have the dump tube running down where it dumps under the the car.
     
  5. Bobby17772

    Bobby17772 New Member

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    thats what I planned on doing
     
  6. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    If you're going to merge it back into the exhaust, do it as far away from the turbo as you can. That way you're not creating turbulence early in the exhaust flow.
     
  7. caboose

    caboose USDM to the bone

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    and/or make it enter as close to the direction of exhaust flow as possible, don't come in a 90* with a "T"
     
  8. Bobby17772

    Bobby17772 New Member

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    yeah if you do make it dump into the exhaust try to make it as smooth as possible...flow wise
     
  9. Matts96HB

    Matts96HB . Moderator VIP

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    good advice here, im going to recirc mine but it is going to be dumped into the downpipe as far back as possible.
     
  10. Bobby17772

    Bobby17772 New Member

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    honestly I have no idea if there is any gains from having it dump into the exhaust, I think it may just make it so you don't smell anything
     
  11. Matts96HB

    Matts96HB . Moderator VIP

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    yeah and you eliminate the open wastegate sound
    i really hate the sound of the wastegate opening up
     
  12. turboef87

    turboef87 New Member

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    just dump it to the floor or run the dumptube outside the car itz better then having to fabricate ur downpipe and mess up ur exhaust flow if u dnt do it rite but thatz just my opinion
     
  13. pooksy64

    pooksy64 RidetilldeathdousparT

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    +1 basically turbulance= decreased back pressure flow. makes it harder for the turbo to get the exhaust out= increased heat
     
    Last edited: Feb 18, 2010
  14. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Huh?
     
  15. pooksy64

    pooksy64 RidetilldeathdousparT

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    I ment the wastegate dumping right back into the exhaust stream right after the turbo will cause turbulance decreasing exaust velocity and increasing EGT's, assumed that its dumping in a "T" form, a 90 angle from the exhaust pipe itself

    -Seen it happen before on a couple supras and one evo @ the performance shop I used to work at
    just an FYI for bigy34
     
    Last edited: Feb 19, 2010
  16. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    :thumbsup:

    Anyone who dumps additional exhaust into the main stream through a "T" really doesn't understand anything about flow...
     
  17. silver

    silver Senior Member

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    /thread
     
  18. DESPAIN

    DESPAIN yep....mmhhm.......yep...

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    dont remember the link... But i have read where they did lots of test on and off the dyno and they said its all ways better to vent to atmos. And not into the exaust.....
     
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