1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

wastegate question

Discussion in 'Forced Induction' started by spoolin@idle, Nov 29, 2006.

  1. spoolin@idle

    spoolin@idle D Series FTL

    Messages:
    93
    Likes Received:
    1
    Joined:
    Nov 13, 2006
    Location:
    Kansas City
    Motor: fully built LS non-vtec
    Turbo: T3/T04E 57 trim .63 a/r

    Planning on running around 8 psi and initial tune, getting used to the car. And then on 110 octane running somewhere in the region of 18 psi. I'm wondering which wastegate (external obviously) would best suit my needs. Would the Tial 38mm be large enough or should I move up to say a 44mm?
     
  2. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

    Messages:
    12,633
    Likes Received:
    193
    Joined:
    Apr 27, 2005
    Location:
    San Antonio, TX
    you should be fine with a 38mm wastegate. ive seen guys making 600+ hp still using the 38mm
     
  3. spoolin@idle

    spoolin@idle D Series FTL

    Messages:
    93
    Likes Received:
    1
    Joined:
    Nov 13, 2006
    Location:
    Kansas City
    saweet. thank ya.

    i am picking up my block from the machine shop very soon. she's gonna make a great cupholder for the time being until i get all my bottom end parts in.
     
  4. pissedoffsol

    pissedoffsol RETIRED

    Messages:
    49,693
    Likes Received:
    54
    Joined:
    Sep 28, 2002
    Location:
    Retirement Home
    it sounds dumb, but more boost = less wastegate needed.


    until of course, you let off :p
     
  5. spoolin@idle

    spoolin@idle D Series FTL

    Messages:
    93
    Likes Received:
    1
    Joined:
    Nov 13, 2006
    Location:
    Kansas City
    letting off is for quitters lol
     
  6. silver

    silver Senior Member

    Messages:
    708
    Likes Received:
    2
    Joined:
    Nov 15, 2002
    Location:
    St. Louis
    To expand on this, with the same spring pressure you want a smaller surface to decrease pressure on the wastegate (pressure = force x area).
     
Verification:
Draft saved Draft deleted

Share This Page