looking to raise the boost

Discussion in 'VW Mk3 Jetta, Passat TDI and other/older diesels' started by grizzly, Jul 22, 2007.

  1. grizzly

    grizzly New Member

    Joined:
    Jul 21, 2007
    Messages:
    298
    just picked up a 1998 jetta tdi.

    it's already got a chip, would adding a boost controller help much?
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  2. Welcome, check out the FAQ called 1000q (1000 answered questions), it is also listed in the stickied post at the top.

    To answer your questions, if you already have a chip, a boost controller would help marginally since you have a conventional wastegate style turbo and a electronic solenoid type controller would help keep the wastegate shut until the desired pressure. A spring type manual controller won't be as helpful so I wouldn't spend the money on it. In short, just leave it as is since you say you already have a chip.
  3. miker

    miker New Member

    Joined:
    Jul 21, 2007
    Messages:
    90
    the best thing you can do is install a free flow exhaust.

    It will increase noise and emissions but also increase power. Personally, I would install a chip and leave it be. A chip is the best value out there for performance mods
  4. chittychittybangbang

    chittychittybangbang Administrator

    Joined:
    May 23, 2007
    Messages:
    22,269
    Car:
    2006 Jetta TDI
    Location:
    CT
    to give you some ideas, the blitz sbc boost controllers are probably my favorites ecause they use a very large solenoid and can go up to the high boost pressure that diesels see, 36 psi max. however, it also costs $500.

    spend your money on a chip first.
  5. He said he already had a chip...spend your money on new shocks and mounts/bushings. They are probably worn out on your car if they haven't been changed yet.

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