Cadillac CTS-V 2004-2007 (Gen I) The Caddy with an Attitude...

Lets talk clutches!

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Old 08-22-2012, 01:43 PM
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Default Lets talk clutches!

I'm a relative newb to the CTS-V owner world, didn't have mine but for a few months before I deployed to Afghanistan. I'm looking into some reliability/performance mods to order when I get closer to going home. I see numerous people running the LS7 clutch kit in bolt on cars and they love it. Anyone running it in a cammed car? If so, how is it holding up? Any problems with it?

I will be running the EPS 222/226 .596/.598 112LSA thats currently in my Impala SS (the Impala will be getting the 226/234 .605”/.612”) if that matters. I'm waiting on a response from Creative Steel about the 8.8 kit, as I already have a line on a center section out of a Cobra, seeing as my stock rear was already leaking when I left. Any help would be appreciated.
Old 08-22-2012, 01:47 PM
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im at 485/480 with the ls7 set up on my maggied V. its holding up just fine and ive been beating the hell out of it. itll be fine for ur car
Old 08-22-2012, 01:54 PM
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That works for me lol. I know SDPC has them, are there any other places you recommend? I've read that some people used the slave cylinder spacer, some didn't. Any particular reason that you would know of?
Old 08-22-2012, 01:55 PM
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Diamond stage 3 here with 17lb flywheel. Holding my car just fine on the shot. Light pedal... Just grabby lol
Old 08-22-2012, 02:10 PM
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NeverSatisfied (withhisexhaust) How do you like the Ground Control kit? How does it ride? I'm not looking to ride ridiculously low, just get rid of some of this damn fender gap.
Old 08-22-2012, 02:11 PM
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LS9 kit from Katech after I yanked the Monster which chattered so much it would loosen a filling besides everything else bolted to the motor.

That isn't even considering the red spots on the floor from fluid being rattled out of the vent pipe.
Old 08-22-2012, 02:15 PM
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Second on the ls9 clutch from katech, works great.
Old 08-22-2012, 02:24 PM
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Originally Posted by GA95DCMSS
NeverSatisfied (withhisexhaust) How do you like the Ground Control kit? How does it ride? I'm not looking to ride ridiculously low, just get rid of some of this damn fender gap.
Lol! I love it man! Rides better than stock. Much more predictable and rebounds much quicker than it used to. Seems to soak up the bumps better now than the stock suspension. I think for what I'm doing, the 500/550 combo is perfect. It's stiff enough that handling was greatly improved but still soft enough that it doesn't beat the **** outta u while driving it. I have my rear as low as it will go at just over 26" from the fender lip to the ground (sits right on the tires which are 275/40's) and the front just slightly lower than that since I'm running the 255/40 up there. Perfect stance, looks slammed, no clearance issues... I'm happy.
Old 08-22-2012, 02:46 PM
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LS7 here and no complaints. Will soon test it out with my maggie, once I get that sorted out.
Old 08-22-2012, 03:31 PM
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Sounds like my best bet is either the LS9X/R or the LS7. Where's the best place to get them? I know Katech has the LS9X/R clutch setups, but who sells the LS7 besides SDPC?

edit: Thats one hell of aprice difference between the LS7 and the LS9! Shat!! Good thing I'm saving my pennies.
Old 08-22-2012, 03:46 PM
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I believe the LS9 is a twin disc, hence the twin price.
Old 08-22-2012, 03:49 PM
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Bud, that would explain it. I think I'm gonna have to stick with the LS7...I don't think I can justify dropping that kinda coin on a clutch...I feel that money is better served in the CS 8.8 conversion.
Old 08-22-2012, 04:15 PM
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The GM LS7 clutch is available on eBay for $300:

http://www.ebay.com/itm/New-GM-LS7-Z...#ht_500wt_1180

There's a version with the matching 25 lb steel flywheel for about $500. The whole assembly like that weighs 57 lbs. Personally, I'd recommend avoiding that and getting an F1 Racing (20.4 lb chromoly steel--$220) or Fidanza (13 lb aluminum) flywheel. If you want to buy my old F1 Racing flywheel, send me a PM.

Edit: I just found out that F1 Racing is now selling five complete kits with a powdercoated LS7 pressure plate, friction disc, 20.4 lb chromoly flywheel, replacement pilot bearing, 26 spline tool, and what appears to be a PowerTorque CS2529 LS7 slave (which I've been beating the snot out of for the last 15,000 miles). DAMN IT! I could've saved a buttload. Depending on which friction disc you choose, these things seem reasonable:

Level 1 @ $585 (good for 565 HP / 510 TQ)
(...)
Level 4 @ $645 (good for 660 HP / 610 TQ)
Level MF @ $659 (good for 625 HP / 578 TQ)

Disclaimer: I haven't tried any of F1's pressure plates. Anyone try one of these?
Old 08-22-2012, 04:40 PM
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Fawk! If only I could look at Ebay from work! I'll check those out when I get off.

Is your flywheel the same as the one in the kits you listed? It wouldn't hurt to have a spare I think.

I don't see any mention of the spacer that I've seen floating around. Is that only if you are using the CTS-V slave?
Old 08-22-2012, 04:55 PM
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Originally Posted by GA95DCMSS
Fawk! If only I could look at Ebay from work! I'll check those out when I get off.

Is your flywheel the same as the one in the kits you listed? It wouldn't hurt to have a spare I think.

I don't see any mention of the spacer that I've seen floating around. Is that only if you are using the CTS-V slave?
Yep, same one. Worked like a charm (ran it for about 8,000 miles), but I wanted something even lighter because I was transitioning to an ATI SuperDamper that added 5-10 lbs to my drivetrain's rotating mass. If you want pictures, let me know.

Here's a picture of the Stage 1 clutch in case you can see it here while you're at work:

Old 08-22-2012, 06:56 PM
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My clutch was $799. Holds 700HP. No chatter. Pedal feels very close to stock. I wouldn't dismiss diamond as an option if you want a bad *** clutch without losing any drivability.
Old 08-22-2012, 07:37 PM
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490rwhp here with LS7. Holds fine for me. Very good price too
Old 08-22-2012, 09:47 PM
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My plan was to always go ls7, but if you plan on putting a rear and launching the car hard it will not hold up.
Old 08-22-2012, 10:28 PM
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I'm putting the rear in for insurance. Just in case I do decide to launch it one day, I know the rear is the least of my worries. I'll look into Diamond too Neversatisfied.
Old 08-22-2012, 11:23 PM
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Luke @ Lindsay Cadillac has the full LS7 kit in stock for a pretty good price. Also if you go with the LS7 Slave you won't need a spacer.
Be sure to pick up a remote bleeder from Tick Performance while you're in there and may as well add some ARP flywheel and pressure plate bolts for good measure...

I went with an Exedy for full time track duty




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