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Thread: Turbo boost

  1. 21st February 2007, 08:31 PM #1
    Discoduck
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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
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  2. 21st February 2007, 08:47 PM #2
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    George130
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    16 or 17 rings a bell. Mine is supposed to up around 19
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  3. 21st February 2007, 09:08 PM #3
    Discoduck
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    Cool

    Thanks for the info.

    Mike
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  4. 21st February 2007, 09:38 PM #4
    tombraider Guest
    The 'official' line is 1.4-1.5 bar

    Mines running 2 bar at max boost...

    So what went boom?
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  5. 22nd February 2007, 05:12 PM #5
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    Boost Pressure

    TDi 300 runs up to 16 PSI then the wastegate vents.
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  6. 22nd February 2007, 05:48 PM #6
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    isuzurover
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    Plenty of US truck diesels run 30-40psi from the factory.
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  7. 22nd February 2007, 05:55 PM #7
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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.
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  8. 22nd February 2007, 06:18 PM #8
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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?
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  9. 22nd February 2007, 09:14 PM #9
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    sclarke
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    14.7psi = 1 bar.
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  10. 23rd February 2007, 10:03 PM #10
    Graeme
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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
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