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Differences in LS3 Engines

Discussion in 'VF Holden Commodore (2013 - 2017)' started by Subju, Jan 27, 2020.

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  1. Jan 27, 2020 #1
    Subju

    Subju New Member

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    Subju, Jan 27, 2020
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  2. Jan 28, 2020 #2
    TTubrag

    TTubrag Active Member

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    TTubrag, Jan 28, 2020
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  3. Jan 28, 2020 #3
    panhead

    panhead Well-Known Member

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    Same engine, it's just different tunes and exhausts isn't it?








    .
     
    panhead, Jan 28, 2020
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  4. Jan 28, 2020 #4
    Subju

    Subju New Member

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    What do they do to get the 317kw LS3 to 340kw? What is different about the 325kw to 340kw upgrade?
     
    Subju, Jan 28, 2020
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  5. Jan 28, 2020 #5
    lmoengnr

    lmoengnr Well-Known Member

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    317kw version had the same exhaust midsection as SS, SSV, Redline.(Holden midsection, HSV mufflers)
    325kw version had HSV 2.5" full exhaust.
    340kw version added a Bimodal intake.
     
    lmoengnr, Jan 28, 2020
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  6. Jan 28, 2020 #6
    Subju

    Subju New Member

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    I was under the impression that all the clubsports had the bimodel exhausts? Am I wrong in assuming Bimodal intake and exhaust is the same thing?
     
    Subju, Jan 28, 2020
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  7. Jan 28, 2020 #7
    Ron Burgundy

    Ron Burgundy Well-Known Member

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    It's a different thing
     
    Ron Burgundy, Jan 28, 2020
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  8. Jan 28, 2020 #8
    Subju

    Subju New Member

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    Good to know, thanks. Do the clubsports all have the bimodal exhausts?
     
    Subju, Jan 28, 2020
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  9. Jan 28, 2020 #9
    Derekthetree

    Derekthetree Member

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    Only the R8 SVs I think

    Intake on the way in
    Exhaust on the way out!
     
    Derekthetree, Jan 28, 2020
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  10. Jan 28, 2020 #10
    Milo 6.0

    Milo 6.0 Active Member

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    Ssv only gets log exhaust manifolds,hsv gets the tri y headers,apparently the 340kw gets 2.5 inch collectors and cats as opposed to 2.25 for the others.
     
    Milo 6.0, Jan 28, 2020
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  11. Jan 28, 2020 #11
    Forg

    Forg Well-Known Member

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    It's part of the SV pack which results in the "340" badges/decals being applied. :)
     
    Forg, Jan 28, 2020
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  12. Jan 28, 2020 #12
    Subju

    Subju New Member

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    but not the standard r8?
     
    Subju, Jan 28, 2020
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  13. Jan 28, 2020 #13
    lmoengnr

    lmoengnr Well-Known Member

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    Standard on certain 'packs', like SV's.
    An option on R8's and non R8's.
     
    lmoengnr, Jan 28, 2020
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  14. Jan 28, 2020 #14
    Subju

    Subju New Member

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    So if a VF Clubsport Tourer that has a walkinshaw 375kw pack, would that have the bimodal exhaust?
     
    Subju, Jan 28, 2020
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  15. Jan 28, 2020 #15
    Ron Burgundy

    Ron Burgundy Well-Known Member

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    That would have walkinshaw exhaust ?
     
    Ron Burgundy, Jan 28, 2020
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  16. Jan 28, 2020 #16
    Subju

    Subju New Member

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    I'm a little clueless tbh, hoping someone could answer that for me. I couldn't seem to see the ability to toggle the bimodal exhaust so I'm assuming it might not have one?
     
    Subju, Jan 28, 2020
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  17. Jan 28, 2020 #17
    [paradox]

    [paradox] Active Member

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    i think im correct in saying series ones were vacuum operated, so theres no control for it?
    being a walky exhaust it might not have been refitted.
    look down the tailpipe and see if you can see a butterfly
     
    [paradox], Jan 28, 2020
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  18. Jan 28, 2020 #18
    Derekthetree

    Derekthetree Member

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    In the R8s the bimodal is controlled via the driving mode dial. You can see how it is operating via EDI (in Gen F)
    It is never fully open. Opens above ~4k in all modes, + at idle in sport and performance.

    Not sure about Walkys but I would imagine it was the same, if it had bimodal that is
     
    Derekthetree, Jan 28, 2020
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  19. Jan 28, 2020 #19
    Forg

    Forg Well-Known Member

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    Nah, Walkinshaw is all aftermarket. You’d have to find out if the W375 has a bi-modal system. Probably not, though, as that kit is also fitted to Holden-badged Commodores which didn’t have bi-modal in VF.
     
    Forg, Jan 28, 2020
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  20. Jan 28, 2020 #20
    lmoengnr

    lmoengnr Well-Known Member

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    Most Walkinshaw 'packs' don't include Bimodal mufflers, unless it originally had Bimodal mufflers fitted.
    Does your Tourer have EDI fitted?
     
    lmoengnr, Jan 28, 2020
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