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Thread: supercharged 300tdi ?

  1. #1
    VladTepes's Avatar
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    supercharged 300tdi ?

    To replace turbo

    Anyone done it?
    It's not broken. It's "Carbon Neutral".


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    Paging Dougal.....

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    Quote Originally Posted by uninformed View Post
    Paging Dougal.....
    You rang.

    Don't do it Vlad. Superchargers and diesels are a match made in hell. We had a guy here trying to prove they weren't, but he's gone quiet.

    The best replacement for one turbo is two turbos. But a VNT is a reasonable substitute.

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    Are the the twin turbo vw engines compound?

    New 2.0 passat engine has 500Nm

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    Quote Originally Posted by uninformed View Post
    Are the the twin turbo vw engines compound?

    New 2.0 passat engine has 500Nm
    Yep and the heavy hitting BMW 3.0tdi. 3.0SDV6 is too and maybe Mazda 6 diesel. Compounds are becoming common.

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    Quote Originally Posted by Dougal View Post
    Yep and the heavy hitting BMW 3.0tdi. 3.0SDV6 is too and maybe Mazda 6 diesel. Compounds are becoming common.
    What is the 3.0SDV6?

    Is compound the same as sequential? 2 turbo straight 6 petrol engines have been around for a while.

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    Quote Originally Posted by VladTepes View Post
    To replace turbo

    Anyone done it?
    Yes it has been done:
    [ame=http://www.youtube.com/watch?v=9WoXFR826Q4]Land Rover Tuning 200 Tdi Conversion Diesel Kompressor in Serie 2 a Supercharged - YouTube[/ame]

    However see Dougal's comments on advisability...

    There is a guy in the GCLRO who has a supercharger on a 4BD1 Isuzu isn't there?

    Dougal - are you talking about the VM guy? I lost track of his stuff after I hit the ignore button on him [first and only person I have needed to do that for yet]. Has he disappeared or is he still around?

  8. #8
    VladTepes's Avatar
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    Question answered. Thank you all !
    It's not broken. It's "Carbon Neutral".


    gone


    1993 Defender 110 ute "Doris"
    1994 Range Rover Vogue LSE "The Luxo-Barge"
    1994 Defender 130 HCPU "Rolly"
    1996 Discovery 1

    current

    1995 Defender 130 HCPU and Suzuki GSX1400


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    Quote Originally Posted by Dougal View Post
    ...Superchargers and diesels are a match made in hell. ....
    What's the reason for that?

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    Quote Originally Posted by uninformed View Post
    What is the 3.0SDV6?

    Is compound the same as sequential? 2 turbo straight 6 petrol engines have been around for a while.
    3.0SDV6 is the diesel v6 engine used in the D4's and RRS. Now in the big rangie too.
    It's claimed to deliver 500Nm within 500ms of idle.

    Sequential turbos run one, then switch over to the other with no compounding of boost. They also have a "valley of death" during switchover where boost drops.

    Quote Originally Posted by isuzurover View Post
    Yes it has been done:
    Land Rover Tuning 200 Tdi Conversion Diesel Kompressor in Serie 2 a Supercharged - YouTube

    However see Dougal's comments on advisability...

    There is a guy in the GCLRO who has a supercharger on a 4BD1 Isuzu isn't there?

    Dougal - are you talking about the VM guy? I lost track of his stuff after I hit the ignore button on him [first and only person I have needed to do that for yet]. Has he disappeared or is he still around?
    Centrifugal supercharger too. They're the worst kind to put on a diesel, boost is proportional to rpm^2.

    Yes that VM guy. I took him off the ignore list a few weeks later, just in case he had anything useful to say.
    Never heard any more: http://www.aulro.com/afvb/members-ri...i-project.html

    September 2013 was apparently ready to run.

    Quote Originally Posted by spudboy View Post
    What's the reason for that?
    Inefficient compressor takes a lot of power to create boost and makes a lot of heat.
    It takes crank power to create boost. A lot of crank power.
    Boost is not scaled in any way to demand. You lose the same power at 2000rpm whether you are coasting downhill or using full torque.
    They create a huge amount of noise too.

    The end result is low power, high fuel consumption and high noise.

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