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2004-2007 Cadillac CTS-V Performance Mods Discussion, Stock vs Lightweight Flywheel in Cadillac CTS-V Series Forum - 2004 - 2007; The stock flywheel is an albatross. You will not loose a ft/lb of torque by going to the LS7 setup....
  1. #16
    branland's Avatar
    branland is offline Cadillac Owners Fanatic
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    Re: Stock vs Lightweight Flywheel

    The stock flywheel is an albatross. You will not loose a ft/lb of torque by going to the LS7 setup.

  2. #17
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    Re: Stock vs Lightweight Flywheel

    You'll gain it lol

  3. #18
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    Re: Stock vs Lightweight Flywheel

    Quote Originally Posted by 814V View Post
    What does the LS7 kit cost from Lindsey?
    Pretty sure it was under $700 complete.

  4. #19
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    Re: Stock vs Lightweight Flywheel

    Thanks for the answer to my question. My brother owns a performance shop in Atlanta, where I live, and he has been doing some research on the subject as well. He liked the idea of the LS-7 FW and clutch but he told me that it is still a dual mass and may not hold up to the "torture" of my driving style. He wants me to go for a single mass unit and he found a setup for me made by Centerforce. They make an aluminum single mass FW and clutch setup that is a direct replacement and the cost is around what I would have paid the GM dealer for a new stock replacement FW (without clutch). The Centerforce FW and clutch are a matched set so both are required. Here are the part numbers in case anyone is interested:
    Clutch - DF612010
    FW - 900143

  5. #20
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    Re: Stock vs Lightweight Flywheel

    If you are looking to do a whole new set up check out Monster Clutch. It's a direct replacement with slave cylinder and all. I recommend the level 2.

    You can get it through Gforce who also sells the axles, drive shaft and soon the 9" rear. www.shop.gforce1320.com

  6. #21
    cts-v ls6 is offline Cadillac Owners Fanatic
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    Re: Stock vs Lightweight Flywheel

    The LS7 flywheel is not dual mass. Here's the link to the Scoggins Dickey Chevrolet website with their LS7 kit for the V1:

    http://sdparts.com/details/scoggin-d...enter/sdls7ack

    $560.00, in stock plus freight.

    I just put one in my 2004 V.

    Jack

  7. #22
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    Re: Stock vs Lightweight Flywheel

    Quote Originally Posted by heavymetals View Post
    "Ps_ any tips on how I can burn up my existing clutch on purpose? With all the wheel hop is it even possible?"

    Park going up hill. The steeper the better.

    My favorite is to get up to 75 and then push in the clutch, let the rpms drop then slowly re engage.

    Smells great!
    I just let my son drive... driver's ed age in Michigan is 14 and 8 months. Burned it up in no time

    To be fair, it was already going so I thought it was a good time to have him practice.
    '04 Platinum, Maggie, Corsa cat back, StealthV tune, UUC short throw shifter, Autovation Pedals, Lingenfelter CAI, GC coilovers, Hotchkis sway bars, UUC braided brake lines, Lingenfelter LS9 clutch, Level V RPM Transmission, Creative Steel engine & trans mounts, LSA block with forged bottom end, RHS heads, Comp valve train, ATI damper, Kooks

  8. #23
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    When looking for a used LS7 set up, what should one be looking at specifically? Are there any tell tale signs of abuse, etc? Also, is the slave spacer the only "extra" we need on top of the clutch and flywheel? Oh, also, what kinda time should a mechanic be charging to do such a swap? 3-4 hours?

  9. #24
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    Re: Stock vs Lightweight Flywheel

    Quote Originally Posted by WesH8398 View Post
    When looking for a used LS7 set up, what should one be looking at specifically? Are there any tell tale signs of abuse, etc? Also, is the slave spacer the only "extra" we need on top of the clutch and flywheel? Oh, also, what kinda time should a mechanic be charging to do such a swap? 3-4 hours?
    Standard labor allowance for a clutch change out, including replacement of flywheel and pilot bearing is 3.9 hours.

  10. #25
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    Wow, good guess on my part!
    So, any tips when shopping for this set up used?

  11. #26
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    Re: Stock vs Lightweight Flywheel

    Quote Originally Posted by WesH8398 View Post
    Wow, good guess on my part!
    So, any tips when shopping for this set up used?
    I can't help you with this. When I had my UUC Flywheel installed my OEM clutch had only 14k miles on it but I still installed a new clutch and pressure plate because I could not bring myself to reinstall a used clutch.

  12. #27
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    Re: Stock vs Lightweight Flywheel

    Quote Originally Posted by cts-v ls6 View Post
    The LS7 flywheel is not dual mass. Here's the link to the Scoggins Dickey Chevrolet website with their LS7 kit for the V1:

    http://sdparts.com/details/scoggin-d...enter/sdls7ack

    $560.00, in stock plus freight.

    I just put one in my 2004 V.

    Jack
    That's CHEAP!!

    Either that or a Stage 2 Monster. I have Stage 3 right now, and it's WAY overkill. I'm going back down to a Stage 2 when I get enough motivation to take the p.o.s. back all apart.

  13. #28
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    That site says you've gotta add the adapter/spacer to that package, so add another $90. Still a very good price for brand new setup.

    Hey, can anyone speak to the HP gains I saw someone claim? Anyone checked this out?

  14. #29
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    what would be a good replacement for the flywheel on the new stock clutch I have, or is that turd-ahem unit, better off intact?

  15. #30
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    Re: Stock vs Lightweight Flywheel

    When I did the UUC FW at about 47k miles, I left my stock clutch in. I didn't see it myself, but the guy who did the FW said the clutch looked just fine. I'd be surprised if it wasn't since I match RPM and tranny revs very closely when I shift so the wear should be minimal.

    Guess I'm saying that if you shift hard frequently, doing the clutch, too, might be advisable.
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