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Oil Line Restrictors for turbos

Discussion in 'Forced Induction' started by integramic, Apr 10, 2004.

  1. integramic

    integramic Member

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    I have just seen a forum on Oil Line Restrictors for turbos? How do you know if you need one? Is it by horse power? Thanks.
     
  2. pissedoffsol

    pissedoffsol RETIRED

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    a restricter is used to lower oil pressure going to the turbo, mostly when the oil is cold.

    if you have an oil press. gauge, you will notice, that at start up, the pressure is up in like the 50s-60s, but once warm, and at idle, 10-15 psi is normal.

    the turbo seals don't like a lot of pressure- they just want the lube.
    the restricter, well, restricts, the pressure.

    frankly, IMO, if you have a properly sized feed line, say -3an, i don't think they are remotely necessary.
     
  3. integramic

    integramic Member

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    Went from oil filter to cyclinder head with a 6an then to the turbo with 4an. I have a prodrive gear and looking 550hp. Thanks.
     
  4. pissedoffsol

    pissedoffsol RETIRED

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    to the head? for a vtec conversion?
    i don't know about that shit.. lol
    but the 4 is really too big. get a -3 line.
     
  5. [Freemantle]

    [Freemantle] Senior Member

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    I have no idea what your talking about. If you could explain what is an optimal setup for feed line sizes and fittings, that would be really informational.
     
  6. pissedoffsol

    pissedoffsol RETIRED

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    there's 1000's ways to do it.

    but -3 feed and -10 return is common
     
  7. ScrapinSi

    ScrapinSi Senior Member

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    for an oil feed for a vtec head you want at least -4...

    -3 is fine for oil feed on a turbo... I'm running -4, and blew the turbo seals with a 1/2" drain line. I installed a restrictor so that it cuts the pressure... works great!
     
  8. integramic

    integramic Member

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    Know where I can find a stainless one? Let me know. thanks.
     
  9. ScrapinSi

    ScrapinSi Senior Member

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    i bought an aluminum one off of a guy on h-t... look around on ebay... they pop up sometimes...
     
  10. Slo86GT

    Slo86GT Super Moderator

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    I think I got in on the same deal. ;) $8.50 or something... Might have been $18.50... Can't remember, but it works great.
     
  11. ScrapinSi

    ScrapinSi Senior Member

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  12. D See 2

    D See 2 Senior Member

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    honda-tech classifieds own j01
     
  13. integramic

    integramic Member

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    Tried doing a seach and still don't find one. Let me know if anyone knows anyone. Thanks.
     
  14. ScrapinSi

    ScrapinSi Senior Member

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    you can use a .060 n2o jet also...
     
  15. integramic

    integramic Member

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    Can anyone else confirm that (.060 n2o jet )?
     
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