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

Getting rid of the stupid dual mass flywheel

Thread Tools
 
Search this Thread
 
Old 04-06-2012, 08:27 AM
  #121  
On The Tree
iTrader: (2)
 
slowlaneblues06's Avatar
 
Join Date: Jan 2012
Location: Alabama
Posts: 196
Likes: 0
Received 0 Likes on 0 Posts

Default

Just ask Tick or LAPD for a straight line, same fitting. as what you found the pic of though.
Old 04-07-2012, 12:18 AM
  #122  
TECH Resident
iTrader: (2)
 
wes8398's Avatar
 
Join Date: Apr 2010
Posts: 947
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by FuzzyLog1c
Cautionary tale: clutch engagement will be very low to the floor (same problem exists with LS2 slave + Katech spacer). I've been limping along this entire winter with this situation, and will be having a custom 1/4" shim made to space the LS7 slave cylinder out a little more.
Why not use the spacers that are already available to us (the ones ppl use to space the ls2/6 slave for the ls7 clutch ***'y? Have you tried those?
Old 04-07-2012, 12:37 AM
  #123  
TECH Resident
iTrader: (2)
 
wes8398's Avatar
 
Join Date: Apr 2010
Posts: 947
Likes: 0
Received 0 Likes on 0 Posts
Default

Also, how many of you guys with the RAM flywheel installed have NOT had a tune and do NOT have other significant power-adding mods?
I just had a conversation with East Coast Performance today, and he confirmed my belief that most of you guys probably had some tuning done after the 19Lb flywheel was installed. Without a tune and/or other mods, it's his belief (and mine) that such a lightweight flywheel would probably have some pretty significant effects on daily driveability.
Concerns go beyond just those involving getting the car moving from a standstill too. There are also potential issues with sudden stops, where the engine might not be able to "catch" itself, thus stalling out.

If there are folks out there with the 19lb flywheel installed on a basically stock V that is still running on the OEM tune, I'd love to hear your experiences.
Old 04-07-2012, 08:19 PM
  #124  
TECH Resident
 
Dmax/04V's Avatar
 
Join Date: Mar 2012
Location: Florida
Posts: 796
Likes: 0
Received 0 Likes on 0 Posts
Default

Don't see what the issue is with the light flywheels, I have the katech ls9x clutch and flywheel combo. The flywheel is 12 lbs and no tuning other than turning my cags off, I haven't had any issues with driveability. Unless the twin disk clutch compensates for the issue the ultralight flywheel hasn't caused me any grief. To be honest it drives much better than the stock setup, granted that doesn't take much.
Old 04-13-2012, 08:18 AM
  #125  
TECH Addict
iTrader: (4)
 
54inches's Avatar
 
Join Date: Sep 2006
Location: Cove, Texas
Posts: 2,064
Received 13 Likes on 10 Posts

Default

One update on the Speedway motors; it sux.

Last edited by 54inches; 07-05-2014 at 01:41 AM.
Old 04-14-2012, 01:17 AM
  #126  
TECH Addict
iTrader: (4)
 
54inches's Avatar
 
Join Date: Sep 2006
Location: Cove, Texas
Posts: 2,064
Received 13 Likes on 10 Posts

Default

Replacing mine now.

Is the Dual Mass unit two pieces?

I sure hope so, as it is twisted and I cannot get to the bolt holes.

When you look at it from underneath it looks like the out layer is coming off, but it was late and I wanted to get at it in the morning with a fresh set of eyes.
Old 05-02-2012, 12:03 PM
  #127  
Teching In
 
sjaroslo's Avatar
 
Join Date: Jun 2011
Location: Santa Clara, CA
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Default

Gents, forgive my ignorance and general "noobiness" on this board, but I read this thread and it sounds like y'all are talking about replacing the CTS-V dual mass flywheel with a setup from an LS7... But I thought that the big issue was that the crankshaft on the CTS-V (I think that we're talking about the LSA engine?) is set up for 8 bolts? And I thought that most other LS-based flywheels were not.... I ask because I'm installing an LSX454 in a vehicle and it utilizes the 8 bolt flywheel, therefore, I'm having the CTS-V clutch/flywheel installed, which y'all sound like you're removing just as quickly as you can.... Can anyone help clear up my confusion? Thank you.

Steve
Old 05-02-2012, 02:21 PM
  #128  
TECH Addict
iTrader: (4)
 
54inches's Avatar
 
Join Date: Sep 2006
Location: Cove, Texas
Posts: 2,064
Received 13 Likes on 10 Posts

Default

CTSV setup as with most LS motors except the LSA is a 6 bolt flywheel/crank.
Old 05-02-2012, 02:48 PM
  #129  
Teching In
 
sjaroslo's Avatar
 
Join Date: Jun 2011
Location: Santa Clara, CA
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Default

OK, so all of you who are getting rid of your dual mass flywheels are 6-bolt guys.... I need to bone up again on my Cadillac, somehow I thought that "CTS-V" = LSA--sorry!

Just in case I'm not happy with what I end up, is there anything out there for the 8-bolt guys to do when it comes time for clutch/flywheel replacement? Thanks again for the help.
Old 05-02-2012, 07:44 PM
  #130  
TECH Addict
iTrader: (4)
 
54inches's Avatar
 
Join Date: Sep 2006
Location: Cove, Texas
Posts: 2,064
Received 13 Likes on 10 Posts

Default

Most of us are V1 guys with either the LS6 or LS2. V2s have the LSA.
Old 05-03-2012, 04:34 PM
  #131  
Teching In
 
sjaroslo's Avatar
 
Join Date: Jun 2011
Location: Santa Clara, CA
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by 54inches
Most of us are V1 guys with either the LS6 or LS2. V2s have the LSA.
Thanks! Got it now. I did do a little and looks like Lingenfelter is offering a flywheel and ZR1 clutch setup for this crankshaft.... I'm hoping that I'll be happy with the dual-mass setup for a little while, though. Sorry for the thread hijack.
Old 05-03-2012, 09:26 PM
  #132  
TECH Addict
iTrader: (4)
 
54inches's Avatar
 
Join Date: Sep 2006
Location: Cove, Texas
Posts: 2,064
Received 13 Likes on 10 Posts

Default

You need to do some more research HERE if that is what you came up with.

Last edited by 54inches; 09-03-2012 at 08:55 PM.
Old 09-03-2012, 08:52 PM
  #133  
TECH Addict
iTrader: (4)
 
54inches's Avatar
 
Join Date: Sep 2006
Location: Cove, Texas
Posts: 2,064
Received 13 Likes on 10 Posts

Default

https://ls1tech.com/forums/16686151-post39.html
Old 07-04-2014, 10:40 AM
  #134  
TECH Addict
iTrader: (6)
 
Sarg's Avatar
 
Join Date: Aug 2011
Location: Atlanta, GA
Posts: 2,838
Likes: 0
Received 3 Likes on 3 Posts
Default

So for a bone stock 05 V is this considered a good clutch set up? I will be grabbing a clutch soon for my wife's Cts-v and trying to find the most cost effective replacement. If I can make it drive a little better for her all the better. How is the pedal feel on this after getting some miles on it? Did it ever come up off the floor?
Old 07-04-2014, 10:23 PM
  #135  
TECH Fanatic
iTrader: (1)
 
isis's Avatar
 
Join Date: Jul 2012
Location: Pittsburgh
Posts: 1,500
Received 10 Likes on 8 Posts

Default

Originally Posted by Sarg
So for a bone stock 05 V is this considered a good clutch set up? I will be grabbing a clutch soon for my wife's Cts-v and trying to find the most cost effective replacement. If I can make it drive a little better for her all the better. How is the pedal feel on this after getting some miles on it? Did it ever come up off the floor?
Look around here a little more. This thread is almost 2 years old; there's more to it. There are some variances that may need to be compensated for using a few shims but the measurements seem to be necessary during the install. Tick performance has most of it worked out, regardless of where you get your kit. They have the shims, instructions and the pretty necessary remote bleeder line that doesn't affect that issue but is a good reason to check them out anyway.
Old 07-05-2014, 01:39 AM
  #136  
TECH Addict
iTrader: (4)
 
54inches's Avatar
 
Join Date: Sep 2006
Location: Cove, Texas
Posts: 2,064
Received 13 Likes on 10 Posts

Default

The LS7 clutch setup up does NOT need shims.....sweet baby Jesus.....
Old 07-05-2014, 08:44 AM
  #137  
TECH Regular
iTrader: (2)
 
OldCobraGuy's Avatar
 
Join Date: Jan 2011
Posts: 481
Likes: 0
Received 2 Likes on 2 Posts

Default

Originally Posted by Sarg
So for a bone stock 05 V is this considered a good clutch set up? I will be grabbing a clutch soon for my wife's Cts-v and trying to find the most cost effective replacement. If I can make it drive a little better for her all the better. How is the pedal feel on this after getting some miles on it? Did it ever come up off the floor?
The LS7 clutch is damn near a bolt in deal. I would double check the measurements just because I'm **** that way, but this was about as simple a clutch swap as I've done. The only thing out of the ordinary was tweaking the hydraulic line a tad...took about 30 seconds. I was really surprised at how well the clutch performs. I expected to feel some NVH in the car due to getting rid of that dual mass flywheel. Didn't happen. I was so impressed I went and bought one for my F body.

One thing I'll mention. Take the clutch assy and bolts to a machine shop and have them balanced. Not expensive at all...and both the LS7 clutches needed some work. I do that on ALL clutches...even high end pieces for my race car need work...so it's money well spent.
Old 07-05-2014, 10:50 AM
  #138  
TECH Fanatic
iTrader: (1)
 
isis's Avatar
 
Join Date: Jul 2012
Location: Pittsburgh
Posts: 1,500
Received 10 Likes on 8 Posts

Default

Originally Posted by 54inches
The LS7 clutch setup up does NOT need shims.....sweet baby Jesus.....
https://ls1tech.com/forums/showthread.php?t=1719968

Sometimes it does. Usually it doesn't. It's worth taking the measurements, especially if the flywheel is aftermarket.



Quick Reply: Getting rid of the stupid dual mass flywheel



All times are GMT -5. The time now is 05:56 AM.