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  1. #1

    Tial 50mm wastegate

    Can someone help I'm running 18psi boost what colour spring do I need for the Tial 50mm wastegate?

    I'm trying to get rid of that vibration surge to 4000rpm with a HKS
    I did a search and someone said I need to run 3lb spring in it. From what I can find 3psi which is pink is the smallest
    Blue spring 0.6psi=8.7lb


  2. #2
    AWA MEMBER
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    The hot pink 3psi spring......and you shoud be running the vac hose right off manafold not tee'd at map sensor








    http://www.ebay.com/itm/TIAL-BOV-50M...5cca58&vxp=mtr

  3. #3
    Kristian Keppel Waterholics's Avatar
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    Do you mean the 50mm BOV ?

  4. #4
    yeah the 50mm bov, do you have to tap a fitting into the manifold?

  5. #5
    would running the vac hose off the manifold fix the surging with the HKS as im runing it off the map atm

  6. #6
    Kristian Keppel Waterholics's Avatar
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    Don't run it off the map sensor. You need a dedicated port for the BOV. Also the line going to the BOV has to be 6mm/1/4" ID. If these conditions aren't met the surging will not go away. PS. You need the -3psi spring to use with a supercharger.

  7. #7
    thanks guys

  8. #8
    AWA MEMBER
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    No problem bud.....i would Tap your manafold I just did mine......I didn't have the surge, but it happens at higher boost levels Tee'd at map sensor.....I bought a R&D multi port adaptor but only plan on running a boost gague there with the map sensor

  9. #9
    Gus13letter's Avatar
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    I have a dedicated line in the manifold for the BOV with the line designed for the vacuum/boost line and still get some surge vibration around mid throttle. All the skis I have seen with decent amount of boost seem to do this so I didnt think anything would get rid of that. Are you all saying that the Tial BOV helps eliminate the surge?

  10. #10
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by Gus13letter View Post
    I have a dedicated line in the manifold for the BOV with the line designed for the vacuum/boost line and still get some surge vibration around mid throttle. All the skis I have seen with decent amount of boost seem to do this so I didnt think anything would get rid of that. Are you all saying that the Tial BOV helps eliminate the surge?
    Gus upgrade to the TiAL pink spring. It's a 3 lb spring.

    http://www.ebay.com/itm/TIAL-BOV-50M...tem5d325cca58=

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