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Thread: Turbo boost

  1. #1
    Join Date
    Nov 2006
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    Cool Turbo boost

    Can anyone tell me what the boost should be for a td5.

    Mine exploded nearly 2 weeks ago.My daughter was driving at the time.

    When I picked the Disco up from Rick's today I asked and was told 17.

    This,to me seems rather high.


    Mike

  2. #2
    Join Date
    Jan 1970
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    16 or 17 rings a bell. Mine is supposed to up around 19

  3. #3
    Join Date
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    Cool

    Thanks for the info.

    Mike

  4. #4
    tombraider Guest
    The 'official' line is 1.4-1.5 bar

    Mines running 2 bar at max boost...

    So what went boom?

  5. #5
    Join Date
    May 2006
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    Townsville, QLD
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    Boost Pressure

    TDi 300 runs up to 16 PSI then the wastegate vents.

  6. #6
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    Aug 2006
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    Plenty of US truck diesels run 30-40psi from the factory.

  7. #7
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    Jan 1970
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    Look at the tacho when the turbo kicks in 2000rpm is from memory about 8psi. The TD5 turbo kicks in at around 1500rpm so approx 15 - 18psi sounds about right.

  8. #8
    Join Date
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    Quote Originally Posted by tombraider View Post
    The 'official' line is 1.4-1.5 bar

    Mines running 2 bar at max boost...

    So what went boom?


    so thats about 20psi isn't it?

  9. #9
    Join Date
    Jan 1970
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    Warburton, Victoria
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    14.7psi = 1 bar.

  10. #10
    Join Date
    Jan 1970
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    NSW SW Slopes
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    Quote Originally Posted by tombraider View Post
    The 'official' line is 1.4-1.5 bar

    Mines running 2 bar at max boost...

    So what went boom?
    Mine would settle to approx 19psi until Tombraider's better flowing I/C was installed. It now only gets to 17psi, presumably due to the max pressure allowed at the MAP sensor (on the inlet manifold) is reached with lower boost from the turbo.

    Tombraider, how did you get the ecu to allow higher boost? Was it by changing an ecu parameter or by installing a resistor in the MAP sensor circuit? I'm not wanting to change mine, just curious.
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi, RTK base station using LoRa

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