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Thread: 1.6 TD boost?

  1. Junior Member
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    1993 Cabriolet, 1983 Rabbit Turbo Diesel
    05-07-2012 09:06 PM #1
    Anyone know the amount of boost to expect from the turbo when operating properly? Thinking about installing a boost gauge...is it worth it?

  2. Member deathhare.'s Avatar
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    05-07-2012 09:13 PM #2
    Quote Originally Posted by cadzillaa View Post
    Anyone know the amount of boost to expect from the turbo when operating properly? Thinking about installing a boost gauge...is it worth it?
    Depends on which turbo you're running as there was more than one.
    Mine with the T3 made 11psi stock.

  3. Member Rockerchick's Avatar
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    05-07-2012 09:22 PM #3
    Ours makes 9psi stock with the T3.
    Quote Originally Posted by TM87 View Post
    VW-making mechanics out of owners since 1957.
    The project - '84 Jetta 1.6TD, 186k+, fully rebuilt, Giles IP and injectors, 2.5" custom exhaust, 51mpg
    Hers - '03 BMP 20thAE GTI, 125k, all stock...for now
    His - '01 Jetta TDI, 126k. Now has 3 pedals, as it should!

  4. Member deathhare.'s Avatar
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    05-07-2012 09:28 PM #4
    The size of the downpipe/exhaust can affect peak boosting as well.
    For the record, mine was 2.5" dp to a 2.25" exhaust.

  5. Member Rockerchick's Avatar
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    '03 BMP 20th GTI, '84 TD Jetta
    05-07-2012 09:45 PM #5
    We have a full 2.5" exhaust. No difference in peak boost.
    Quote Originally Posted by TM87 View Post
    VW-making mechanics out of owners since 1957.
    The project - '84 Jetta 1.6TD, 186k+, fully rebuilt, Giles IP and injectors, 2.5" custom exhaust, 51mpg
    Hers - '03 BMP 20thAE GTI, 125k, all stock...for now
    His - '01 Jetta TDI, 126k. Now has 3 pedals, as it should!

  6. Member RabbitJockey's Avatar
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    97 trek, 81 jetta, 81 rabbit, 90 cabby
    05-07-2012 09:45 PM #6
    Somewhere between 10-12, with a closed waste gate and stock fueling around 15 will be ur max u need more fuel for more boost
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  7. Member 8v-of-fury's Avatar
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    05-07-2012 10:01 PM #7
    It is always a good idea to have a boost gauge, you can never have too many gauges telling you what is going on .

    Plus if you plan on upping the fuel, thus upping the boost, you will want to know what is going on.

  8. Junior Member
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    1993 Cabriolet, 1983 Rabbit Turbo Diesel
    05-09-2012 08:24 PM #8
    Where's the best place to tap in a gauge line off the turbo?

  9. Member Dozier's Avatar
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    05-09-2012 11:11 PM #9
    Just T off the intake manifold vacuum line. You get a more accurate reading that way...

  10. Junior Member
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    1993 Cabriolet, 1983 Rabbit Turbo Diesel
    05-19-2012 04:33 PM #10
    Does anyone have pics of where they tap off foor boost? I'm tapping off the little vacuum line that comes off the turbo body and goes to the injection pump......reads slight vacuum most of the time (2-3"). Gauge does work......I checked. Any ideas?

  11. Member RabbitJockey's Avatar
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    97 trek, 81 jetta, 81 rabbit, 90 cabby
    05-19-2012 08:25 PM #11
    That where I had mine, check your air filter
    ..........___..................___..............._ __
    ......._//_|_\__........._//_|_\__........//|_|_\__ .......z____\__
    ......|_@_|_|@|..O0o|_@_|_|@|..O0o|@_|_|@|.......| @_|_|@|

  12. Member sprstu's Avatar
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    05-19-2012 09:25 PM #12
    There is no way you should ever see vacuum, nothing in the diesel system makes vacuum naturally. Your gauge is broken.

    I have had mine T'd from that line for years, never once seen vacuum.

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