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2009-2014 Cadillac CTS-V General Discussion Discussion, CTS-V laughs at the new RS6 in Cadillac CTS-V Series Forum - 2009-2014; Originally Posted by Blackout The big question mark for the V is how will the pistons in the LSA hold ...
  1. #31
    Torxila's Avatar
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    Re: CTS-V laughs at the new RS6

    Quote Originally Posted by Blackout View Post
    The big question mark for the V is how will the pistons in the LSA hold up because from what I have been hearing, those are not very good.
    Blackout,
    What have you heard exactly and from who. Under what conditions were the pistons not very good. Do you/they have any data?

    Thanks,
    George

  2. #32
    atdeneve is offline Cadillac Owners Connoisseur
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    Re: CTS-V laughs at the new RS6

    I don't think he's implying that he has any special secret information about the LSA. It's just, the pistons are hypereutectic. They are not forged. This is information that has been available to all for sometime now. It's not something that you have to be privy to.

    Being that they're hypereutectic, they will not withstand extreme boost, and, therefore, you can't expect to simply up the boost and have free horsepower at your disposal. Increase the boost significantly and you're gonna have to toss in some forged internals to withstand that kinda pressure.

  3. #33
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    Re: CTS-V laughs at the new RS6

    Thats not to say there is no room for HP improvement with existing internals. D3 is making 600+ out of a 469 HP stock motor with tuning and bolt ons. I would think the same 28% increase is possible on the LSA. Which is roughly the same % as the drive train loss (auto) 556 x .28 = 155 hp gain... 155 + 556 = 711 hp. Not too shabby.. Who wouldn't want a 711 hp caddy?

    http://www.cadillacforums.com/forums...g-preview.html

  4. #34
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    Re: CTS-V laughs at the new RS6

    Quote Originally Posted by LITTLEELVISDAN View Post
    Thats not to say there is no room for HP improvement with existing internals. D3 is making 600+ out of a 469 HP stock motor with tuning and bolt ons. I would think the same 28% increase is possible on the LSA. Which is roughly the same % as the drive train loss (auto) 556 x .28 = 155 hp gain... 155 + 556 = 711 hp. Not too shabby.. Who wouldn't want a 711 hp caddy?

    http://www.cadillacforums.com/forums...g-preview.html
    The LS9 and the LSA are two different engines. That would be like saying that a ford 4.6 sohc is the same as the 4.6 dohc and that you would expect the same results with mods. The LSA has crappier pistons, rods, heads, etc compared to the LS9. You think GM is going to waste the money to just make the same engine but use just different pistons? This is why the LSA uses a smaller blower then that of the LS9 because its internals aren't up to par. Now all of this is pure speculative but testing has been done with eutetic pistons and forged and the eutetic ones are inferior

  5. #35
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    Re: CTS-V laughs at the new RS6

    Quote Originally Posted by atdeneve View Post
    The new R8 (V10) or the old (V8)?
    R8

  6. #36
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    Re: CTS-V laughs at the new RS6

    Quote Originally Posted by Blackout View Post
    The LS9 and the LSA are two different engines. That would be like saying that a ford 4.6 sohc is the same as the 4.6 dohc and that you would expect the same results with mods. The LSA has crappier pistons, rods, heads, etc compared to the LS9. You think GM is going to waste the money to just make the same engine but use just different pistons? This is why the LSA uses a smaller blower then that of the LS9 because its internals aren't up to par. Now all of this is pure speculative but testing has been done with eutetic pistons and forged and the eutetic ones are inferior
    Here we go. "Crappier" is not the adjective I'd use given that the design goals for the LSA and the LS9 were totally different. The internals are indeed "up to par" (read "fit for purpose") given that the vast majority of buyers won't be pursuing mods much beyond hanging an air freshener from the rear view mirror.

    Not that mods are a bad thing, says the V1 Maggie owner. But I suspect I'll be perfectly happy with 556/551 direct from the factory and warrantied, and also happy to pay a lower price for it thanks to the engineering differential between the LSA and the LS9.

    Given that we're talking a lux-o-barge with great handling, how much quicker than 0-60 in 3.9 and Ring in under 8 minutes do we need? And how much higher an MSRP are we willing to pay for each tenth of a second?

    I like fast, but this baby is already capable of ludicrous speed.

  7. #37
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    Re: CTS-V laughs at the new RS6

    Quote Originally Posted by lawfive View Post
    Here we go. "Crappier" is not the adjective I'd use given that the design goals for the LSA and the LS9 were totally different. The internals are indeed "up to par" (read "fit for purpose") given that the vast majority of buyers won't be pursuing mods much beyond hanging an air freshener from the rear view mirror.

    Not that mods are a bad thing, says the V1 Maggie owner. But I suspect I'll be perfectly happy with 556/551 direct from the factory and warrantied, and also happy to pay a lower price for it thanks to the engineering differential between the LSA and the LS9.

    Given that we're talking a lux-o-barge with great handling, how much quicker than 0-60 in 3.9 and Ring in under 8 minutes do we need? And how much higher an MSRP are we willing to pay for each tenth of a second?

    I like fast, but this baby is already capable of ludicrous speed.
    Oh I'm not saying that this thing isn't going going to be a monster because this thing will be a monster! But there will always be those people that in stock trim it just isn't fast enough and that's what I will be interested in seeing as to how these LSA's hold up. Like I said it's all speculation at this point but testing has shown that forged internals are better then eutetic internals. But as for using "crappier" to describe the internals that wasn't the best choice of words to describe it but either way any adjective that means not as good would suffice

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    Re: CTS-V laughs at the new RS6

    I gotcha. Let's predict those future V Forum threads right now:

    "Check it out: home-grown CAI (pix)"

    "F#$@*NG PULLEY!!!"

    "Got the boost up by 1.5 psi but heard a 'bang,' any help?"

    "Starting the LS9 conversion; have a couple questions..."

  9. #39
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    Re: CTS-V laughs at the new RS6

    You forgot "WTF?! Stupid stealer won't warranty my engine after changing pulley!!!?!"


  10. #40
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    Re: CTS-V laughs at the new RS6

    "LS9 conversion... Stupid intercooler!!! Who's up for a custom hood group buy? "

  11. #41
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    Re: CTS-V laughs at the new RS6

    Quote Originally Posted by lawfive View Post
    I gotcha. Let's predict those future V Forum threads right now:

    "Check it out: home-grown CAI (pix)"

    "F#$@*NG PULLEY!!!"

    "Got the boost up by 1.5 psi but heard a 'bang,' any help?"

    "Starting the LS9 conversion; have a couple questions..."
    Quote Originally Posted by The Tony Show View Post
    You forgot "WTF?! Stupid stealer won't warranty my engine after changing pulley!!!?!"

    Quote Originally Posted by lawfive View Post
    "LS9 conversion... Stupid intercooler!!! Who's up for a custom hood group buy? "

  12. #42
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    Re: CTS-V laughs at the new RS6

    Quote Originally Posted by lawfive View Post
    ...

    I like fast, but this baby is already capable of ludicrous speed.

  13. #43
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    Re: CTS-V laughs at the new RS6

    Quote Originally Posted by HushH View Post



    And THAT gets post of the day! LOLLOLOL!!!
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  14. #44
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    Re: CTS-V laughs at the new RS6

    Quote Originally Posted by CIWS View Post
    This one ?

    [YOUTUBE]3f6EKUJxnFA[/YOUTUBE]
    Yea, that one! Well, not that one exactly, as thats the last gen body with the new engine. But yes, that engine sounds bad to me... If firing order can affect the engine note, then having 2 many or 2 few cylinders can as well.

    Ive driven the Gallardo and rode in a Murcielago, and the Murcielago sounds so much nicer to my ears.

  15. #45
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    Re: CTS-V laughs at the new RS6

    Quote Originally Posted by concorso View Post
    Ive driven the Gallardo and rode in a Murcielago, and the Murcielago sounds so much nicer to my ears.
    No doubt. But I really don't place those cars and their designed customer in the same boat as a performance sedan, be it Audi or Cadillac.

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