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Thread: dyno run of my 3.6l v8 diesel twin turbo L320 RRS.

  1. #1
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    dyno run of my 3.6l v8 diesel twin turbo L320 RRS.

    long time no see (i can hear the mods groaning)

    i wanted to post something i had not seen before, the dyno run of my 3.6l v8 diesel twin turbo L320 RRS.
    it has a aftermarket tune from TRS, pulling 148kw @ 3569rpm & 436Nm @ 2896rpm
    these numbers are smaller than i expected. i was expecting 200kw and 600Nm. 600Nm as the RRS is almost able to keep up (abit lower redline) with my HSV maloo pulling 350kw and 700Nm.

    of concern during the dyno run, the guy said my EGT were 750c at WOT!
    reading a post by Tombie, he said there is a built in EGT that the gap tool can read.
    I went and found it, but mine is static, it reads 212f and never changes.
    I made a call to TRS, they said its part of the EGR system, which is "tuned out" as part of the tune. so I cant monitor EGT which is annoying.



    20250605_104627.jpg
    Current Cars:
    2013 E3 Maloo, 350kw
    2008 RRS, TDV8
    1995 VS Clubsport

    Previous Cars:
    2008 ML63, V8
    2002 VY SS Ute, 300kw
    2002 Disco 2, LS1 conversion

  2. #2
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    Surely that 148kw number and the rest is at the wheels not the engine. A 2.7 in relatively new condition is just below those numbers at the engine.
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

  3. #3
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    Quote Originally Posted by 101RRS View Post
    Surely that 148kw number and the rest is at the wheels not the engine. A 2.7 in relatively new condition is just below those numbers at the engine.

    correct, thats at the sheels. all dyno runs are at the wheels.
    Current Cars:
    2013 E3 Maloo, 350kw
    2008 RRS, TDV8
    1995 VS Clubsport

    Previous Cars:
    2008 ML63, V8
    2002 VY SS Ute, 300kw
    2002 Disco 2, LS1 conversion

  4. #4
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    Quote Originally Posted by Eevo View Post
    correct, thats at the sheels. all dyno runs are at the wheels.
    Well yes then they use a conversion factor to determine the power etc at the engine.

    I would say that is about right then. My 2wd jag develops 300hp at the engine, and 200hp at the back wheels - so power at the wheels will normally be around 2/3 so your power at the back wheels is about right.
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

  5. #5
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    Quote Originally Posted by Eevo View Post
    long time no see (i can hear the mods groaning)....]
    Welcome back, we thought you were dead, or had been given a lifetime ban!
    Last edited by RANDLOVER; 5th June 2025 at 11:42 PM. Reason: Text size
    2005 D3 TDV6 Present
    1999 D2 TD5 Gone

  6. #6
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    Quote Originally Posted by 101RRS View Post
    Well yes then they use a conversion factor to determine the power etc at the engine.

    I would say that is about right then. My 2wd jag develops 300hp at the engine, and 200hp at the back wheels - so power at the wheels will normally be around 2/3 so your power at the back wheels is about right.

    what conversion factor would u use?
    15% loss for manual?
    20% loss for auto rwd?
    25% loss for auto awd?
    Current Cars:
    2013 E3 Maloo, 350kw
    2008 RRS, TDV8
    1995 VS Clubsport

    Previous Cars:
    2008 ML63, V8
    2002 VY SS Ute, 300kw
    2002 Disco 2, LS1 conversion

  7. #7
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    Quote Originally Posted by RANDLOVER View Post


    Welcome back, we thought you were dead, or had been given a lifetime ban!

    rumors of my death are greatly exaggerated
    Current Cars:
    2013 E3 Maloo, 350kw
    2008 RRS, TDV8
    1995 VS Clubsport

    Previous Cars:
    2008 ML63, V8
    2002 VY SS Ute, 300kw
    2002 Disco 2, LS1 conversion

  8. #8
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    FYI.

    A very old, original owner, report on my 2.7 D3.

    Scan_20250606.jpg
    'sit bonum tempora volvunt'


  9. #9
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    Quote Originally Posted by Eevo View Post


    I made a call to TRS, they said its part of the EGR system, which is "tuned out" as part of the tune. so I cant monitor EGT which is annoying.
    The reason some "tune out" certain parameters during a tune is so they won't bring up a fault code.

    Don't know about your particular vehicle but it is often done on other brands.
    Not really ideal.

  10. #10
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    Quote Originally Posted by Eevo View Post
    what conversion factor would u use?
    15% loss for manual?
    20% loss for auto rwd?
    25% loss for auto awd?
    The guy who did the dyno should be able to advise.
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

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