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

Getting rid of the stupid dual mass flywheel

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Old 02-29-2012, 09:55 PM
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BTW, that spacer is cheaper directly from Katech...$59.99:
http://store.katechengines.com/cts-v...pacer-p95.aspx

Anyone have a link to the slave?
Old 03-01-2012, 07:46 AM
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Originally Posted by 54inches
So FN weird. I confirmation that it is boxed and has a UPS number, so maybe it is not a fluke!
The slave cylinder is back in stock again today. I bought it along with the remote bleeder, and clutch with lighter flywheel from sdparts. I know what people have said about the flywheel and longevity but I don't beat on me car much so I'm sure I can get another 70k miles out of it. I'll let you guys know how it goes.
Old 03-01-2012, 10:42 AM
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Originally Posted by wcryan
people wiht the clutch already in:

Did it improve your shifting over the dual mass turd our cars come with?
It's harder to avoid choking out the engine from a standstill, even after a good tune. Rev matching is easier, though.
Old 03-01-2012, 07:48 PM
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Originally Posted by dudesweet
BTW, that spacer is cheaper directly from Katech...$59.99:
http://store.katechengines.com/cts-v...pacer-p95.aspx
Anyone have a link to the slave?
But you don't need it if you buy LS7 everything.....

Originally Posted by hnic91
The slave cylinder is back in stock again today. I bought it along with the remote bleeder, and clutch with lighter flywheel from sdparts. I know what people have said about the flywheel and longevity but I don't beat on me car much so I'm sure I can get another 70k miles out of it. I'll let you guys know how it goes.
Awesome!!!!! I guess you just have to keep checking back!!!
Old 03-01-2012, 07:55 PM
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Originally Posted by 54inches
But you don't need it if you buy LS7 everything.....
True.

Just thought I'd add the link for those folks that were being stubborn. I'm still trying to find a good link/part # for the slave. Only one I found in this thread is the one from O'Reilly.
Old 03-01-2012, 10:09 PM
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That is about it right now unless you goto GM.
Old 03-02-2012, 12:30 PM
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I have a Katech spacer that I never used if someone is interested in it. Maybe $30 or so.
Old 03-02-2012, 01:01 PM
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Looks like the GM LS7 slave cylinder is P/N 24237634 ... about $180 ish.
Old 03-03-2012, 10:04 AM
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had the entire LS7 kit installed at Lindsay recently... definitely like it so far, only issue is vibration in the clutch pedal when shifting over 3000 rpm... does this go away after more break-in or a clutch bleed? I generally run motul 600 RBF for fluid and they put stock fluid in for now but i'm curious if others experience this vibration at higher RPM shifts after a few thousand miles...
Old 03-05-2012, 08:24 PM
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Picture of LS7 clutch from Scoggin Dickey



Should be installed tomorrow
Attached Thumbnails Getting rid of the stupid dual mass flywheel-2012-03-05-17.28.40.jpg  
Old 03-07-2012, 07:03 AM
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Guys...the only issue with a light flywheel is driving away from a stop sign. The lighter wheel has a lot less inertia and the car will tend to bog a bit and slip the clutch compared to a heavy wheel. They may not tolerate severe heat as well. The good side of this is because of the less inertia, it will rpm much quicker and put more power to the wheels. If you are a road racer, you will be able to drive much deeper into the corners. Also, when you need to replace the clutch, you simply ship your wheel back to the manufacturer and have them replace the insert. New flywheel at a third the cost!

BTW, if you really want a hot set up, go as light in the clutch as you can get away with, and use a deeper first gear trans. That was always worth a ton of e.t. in our race cars.
Old 03-07-2012, 07:07 AM
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Originally Posted by NatedogV
only issue is vibration in the clutch pedal when shifting over 3000 rpm... i'm curious if others experience this vibration at higher RPM shifts after a few thousand miles...
This would really bother me. If you have it now, and didn't have it before, I would be very nervous about what is going on. You only feel it in the pedal? And only above 3000 rpm? Does the pedal pulsate?
Old 03-21-2012, 08:39 PM
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BTW you don't even have to send the flywheel in. I replaced the friction surface on my Fidanza and it cost $56 and even came with new hardware from Summit.
Old 03-28-2012, 10:43 AM
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Default Stock tank Flywheel

This is the flywheel that I pulled out last night. I really dont think this is good.

http://youtu.be/yAKbC4wORe0
Old 03-28-2012, 11:09 AM
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Originally Posted by slowlaneblues06
This is the flywheel that I pulled out last night. I really dont think this is good.
looks normal.. standard dual mass turd right thurrr
Old 03-28-2012, 11:29 AM
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It explains the damn vibrations too
Old 03-28-2012, 11:37 AM
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Funny, when I took mine out it slipped off the trans and came crashing to the floor severing the extension cord for the drop light and throwing sparks everywhere while my friend and I jumped back to avoid getting toes chopped off.
Old 04-04-2012, 10:16 PM
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Hey fellas, I'm looking at putting a parts pile together for this swap soon. I've been reading around like crazy about what parts to get, etc but I'm confused about something. I read conflicting info about either the slave or the remote bleeder needing to have straight or angled lines so you don't have to bend the line to match up to the notch in the bell housing. Can anyone straighten me out on this? Thanks!! An thanks for all the info here in this thread too. It's been helpful. Now if I could only get some type of guarantee that my pedal won't engage at the floor after this, I'd be pulling the trigger on buying everything. Unfortunately pedal engagement sounds like a roll of the dice though :S
Old 04-05-2012, 08:28 AM
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Originally Posted by wes8398
Hey fellas, I'm looking at putting a parts pile together for this swap soon. I've been reading around like crazy about what parts to get, etc but I'm confused about something. I read conflicting info about either the slave or the remote bleeder needing to have straight or angled lines so you don't have to bend the line to match up to the notch in the bell housing. Can anyone straighten me out on this? Thanks!! An thanks for all the info here in this thread too. It's been helpful. Now if I could only get some type of guarantee that my pedal won't engage at the floor after this, I'd be pulling the trigger on buying everything. Unfortunately pedal engagement sounds like a roll of the dice though :S
If you get the LS7 Slave, you need the straight bleeder with c6 fitting. If you keep your stock slave and get a spacer, you will need the bent line, and might have t notch the bellhousing, IDK about that nothc cuz i got the new slave.
Old 04-05-2012, 11:10 PM
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Originally Posted by slowlaneblues06
If you get the LS7 Slave, you need the straight bleeder with c6 fitting. If you keep your stock slave and get a spacer, you will need the bent line, and might have t notch the bellhousing, IDK about that nothc cuz i got the new slave.
Thanks for the clarification on that. Are the "straight bleeders" for different applications than the "bent bleeders"? Or do I just confirm with whoever I buy the bleeder from that the line is straight (since Ill have an LS7 slave)?

EDIT:
Which bleeder would this be? Bent (the one end appears bent...) with C6 fitting? If so, how would I get the "straight" one?

Last edited by wes8398; 04-05-2012 at 11:23 PM.


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