Notices
C5 General General C5 Corvette and C5 Z06 Discussion not covered in Tech

[Z06] New Clutch ?'s

Thread Tools
 
Search this Thread
 
Old Apr 13, 2010 | 07:23 PM
  #21  
winters97gt's Avatar
winters97gt
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2007
Posts: 8,375
Likes: 97
From: Somewhere in the Mid 9's TX
Default

Originally Posted by 2K3Z06
Any opinons on the LUK Pro Gold... Thats what LG suggested for my car. Stock car with 2 or 3 track days a year.
Talk to "PreZ06". Look him up, he ran this clutch and beat the crap out of it with 1.5X 60ft's and 420rwhp.

I run the spec 3 clutch. It was either that, or the LS7 for me. I have already broke 2 rear ends. (1 stock, 1 built RPM). I can only get a tiny slip out of it, if you even want to call it a slip. It chatters and shakes the car during 1st and 2nd gear driving if you do not have don't have the RPM's up. I can't say I would suggest this clutch, unless you race a lot.
Reply
Old Apr 13, 2010 | 07:36 PM
  #22  
GM Fan's Avatar
GM Fan
Racer
15 Year Member
 
Joined: Oct 2000
Posts: 483
Likes: 3
From: Woodstock Ga
Default

Pretty sure the LUK Pro Gold is just the OEM C5Z LS6 clutch. There are those here to seem to prefer it over the LS7 setup though I guess.

I had a SPEC clutch in my Z before swapping to the LS7 clutch and it was definitely not a friendly street clutch. It was in the car when I bought it and I didn't get any details from the shop that removed it on what stage it was, so it could have been one of their more extreme stages (I'm guessing it was a 3 but who knows), but it was just a pain in the *** to drive on the street. Violent clutch chatter if you don't have the RPM above 1500 and ride the clutch out pretty good from a stop in normal driving. Was making a pretty loud annoying squealing noise when you did it right to avoid the chatter. No idea if there was something wrong or that was just par for the course.

Much happier w/ the LS7 clutch kit so far as driveability is concerned. Who's to say how well it will hold up to abuse though. Since it came from the factory on the 505 hp C6Z I don't see how it could be a horrible choice for a stock/mildly upgraded C5Z...

Last edited by GM Fan; Apr 13, 2010 at 07:40 PM.
Reply
Old Apr 13, 2010 | 07:38 PM
  #23  
Edmond's Avatar
Edmond
Drifting
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2004
Posts: 1,281
Likes: 21
From: Orlando Florida
Default

Originally Posted by Pttrader
I am geting better adjusted to the clutch and when you say LS7 clutch are you talking a C6 clutch? Will this clutch handle 500hp?
What is involved in replacing the clutch? can it be done with 10" ramps in front and jacking and supporting the back somewhat higher or is it better to do it with a lift?
Other then removing the wheels and disconnecting the half shafts and torque tube how much time should one figure?
Yes, the LS7 clutch is the factory C6 Z06 clutch. The C6 Z06 comes with 505 HP so yes it will handle the power. When you take it down, you can see how much beefier the clutch is over the LS6 clutch.

Yes, you can do it with jackstands. I don't think it makes it any more difficult than using a lift.

No, you do not remove the halfshafts. The torque tube is connected to the transmission and rear differential. The only thing that will come off are the rear wheels. You will unbolt the rear shocks, A-arms and then it's only 4 bolts holding the entire rear cradle together. There are various sensor lines on top of the rear cradle that you'll have to disconnect.

The exhaust will have to come out.

There are sensor lines that run along top the torque tube. You will also disconnect the rear brake lines from above the rear differential area.

The shifter will have to come out from inside the car.

Tunnel plate will have to come out as well.

Biggest thing to watch out for is to not let the rear drop too much or it will tilt the engine back and crash into the firewall. You'll even see an illustration on the torque tube.

To drop all that will take about 4-6 hours.

Putting it back together can easily double that time.

You will need 4 jackstands and at least 2 jacks.

A torque wrench is necessary as the flywheel and pressure plate must be torque exactly to spec or you will get vibration. If that happens, you'll tear the whole thing down and do it all over again.

A clutch alignment tool will also be necessary.

May as well replace the $12 throwout bearing. You can rent a slide hammer and bearing puller from Auto Zone, those are necessary.
Reply
Old Apr 13, 2010 | 08:30 PM
  #24  
TurboTnZ06's Avatar
TurboTnZ06
Race Director
25 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Dec 2000
Posts: 14,581
Likes: 10
From: City of Turbo Buicks in Corvette County FL
Default

Originally Posted by Edmond
Yes, the LS7 clutch is the factory C6 Z06 clutch. The C6 Z06 comes with 505 HP so yes it will handle the power. When you take it down, you can see how much beefier the clutch is over the LS6 clutch.

Yes, you can do it with jackstands. I don't think it makes it any more difficult than using a lift.

No, you do not remove the halfshafts. The torque tube is connected to the transmission and rear differential. The only thing that will come off are the rear wheels. You will unbolt the rear shocks, A-arms and then it's only 4 bolts holding the entire rear cradle together. There are various sensor lines on top of the rear cradle that you'll have to disconnect.

The exhaust will have to come out.

There are sensor lines that run along top the torque tube. You will also disconnect the rear brake lines from above the rear differential area.

The shifter will have to come out from inside the car.

Tunnel plate will have to come out as well.

Biggest thing to watch out for is to not let the rear drop too much or it will tilt the engine back and crash into the firewall. You'll even see an illustration on the torque tube.

To drop all that will take about 4-6 hours.

Putting it back together can easily double that time.

You will need 4 jackstands and at least 2 jacks.

A torque wrench is necessary as the flywheel and pressure plate must be torque exactly to spec or you will get vibration. If that happens, you'll tear the whole thing down and do it all over again.

A clutch alignment tool will also be necessary.

May as well replace the $12 throwout bearing. You can rent a slide hammer and bearing puller from Auto Zone, those are necessary.
Argh, I'm having flashbacks from doing this by myself with handtools
Reply
Old Apr 14, 2010 | 12:23 AM
  #25  
Han Solo's Avatar
Han Solo
Burning Brakes
10 Year Member
 
Joined: Jan 2008
Posts: 986
Likes: 4
From: Galaxy Traveler
Default

I bought a EXEDY 04173 OEM Replacement Clutch Kit from Amazon and it is working fine in my stock Z. It actually had OEM LUK parts in a Exedy box. $316.75 is hard to beat for new flywheel, disc, PP, and all.

Order a new stock slave cylinder while you are going in.

I also suggest switching to a pilot bushing instead of the bearing. NAPA #615-1161 bronze pilot bushing, $3.49

This is a good thread to read before starting.
http://forums.corvetteforum.com/c5-t...placement.html

I would support the tranny and pull the suspension out first. Only 4 bolts difference and make routing the brake lines and stuff easier IMO. You changing the tranny you will have to separate these parts anyway.

Last edited by Han Solo; Apr 14, 2010 at 12:29 AM.
Reply
Old Apr 14, 2010 | 08:36 AM
  #26  
Edmond's Avatar
Edmond
Drifting
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2004
Posts: 1,281
Likes: 21
From: Orlando Florida
Default

And get a remote bleeder for the clutch while you're at it!
Reply
Old Apr 14, 2010 | 10:42 PM
  #27  
MTPZ06's Avatar
MTPZ06
Team Owner
Supporting Gold
10 Year Member
 
Joined: Dec 2008
Posts: 35,874
Likes: 1,601
From: Honolulu HI
Default

Originally Posted by Han Solo
I bought a EXEDY 04173 OEM Replacement Clutch Kit from Amazon and it is working fine in my stock Z. It actually had OEM LUK parts in a Exedy box.
That's commonly referred to as "bait and switch".
Reply
Old Apr 14, 2010 | 11:17 PM
  #28  
Han Solo's Avatar
Han Solo
Burning Brakes
10 Year Member
 
Joined: Jan 2008
Posts: 986
Likes: 4
From: Galaxy Traveler
Default

Originally Posted by MTPZ06
That's commonly referred to as "bait and switch".
Actually they call that repackaging. It was sold as OEM and had OEM parts in it. Nothing wrong with that when it saves money.

Now if it said OEM and had some no-name junk in it that would be bait and switch.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
Old Apr 14, 2010 | 11:34 PM
  #29  
BlueFish81's Avatar
BlueFish81
Racer
10 Year Member
 
Joined: Nov 2007
Posts: 339
Likes: 2
From: Chatsworth
Default

C6Z06 (LS7) clutch al the way.
Reply
Old Apr 14, 2010 | 11:35 PM
  #30  
MTPZ06's Avatar
MTPZ06
Team Owner
Supporting Gold
10 Year Member
 
Joined: Dec 2008
Posts: 35,874
Likes: 1,601
From: Honolulu HI
Default

Originally Posted by Han Solo
Actually they call that repackaging. It was sold as OEM and had OEM parts in it. Nothing wrong with that when it saves money.

Now if it said OEM and had some no-name junk in it that would be bait and switch.
OH...OK. I though you said you ordered Exedy and they gave you a Luk, but I guess I'm mistaken. Anyways, wasn't picking on you...just making a harmless joke.
Reply
Old Apr 15, 2010 | 05:36 AM
  #31  
PRE-Z06's Avatar
PRE-Z06
Race Director
15 Year Member
Veteran: Navy
Liked
Community Favorite
 
Joined: Dec 2006
Posts: 12,395
Likes: 2,912
From: Fort Worth, Texas
Default

Originally Posted by GM Fan
Pretty sure the LUK Pro Gold is just the OEM C5Z LS6 clutch. There are those here to seem to prefer it over the LS7 setup though I guess.

I had a SPEC clutch in my Z before swapping to the LS7 clutch and it was definitely not a friendly street clutch. It was in the car when I bought it and I didn't get any details from the shop that removed it on what stage it was, so it could have been one of their more extreme stages (I'm guessing it was a 3 but who knows), but it was just a pain in the *** to drive on the street. Violent clutch chatter if you don't have the RPM above 1500 and ride the clutch out pretty good from a stop in normal driving. Was making a pretty loud annoying squealing noise when you did it right to avoid the chatter. No idea if there was something wrong or that was just par for the course.

Much happier w/ the LS7 clutch kit so far as driveability is concerned. Who's to say how well it will hold up to abuse though. Since it came from the factory on the 505 hp C6Z I don't see how it could be a horrible choice for a stock/mildly upgraded C5Z...
The Pro Gold is supposedly a heavier duty organic LS6 clutch with a fidanza aluminum flywheel. I've also run the Centerforce 12" ceramic dual friction which I liked and now have a Spec StageII kevlar that is in between the previous in feel...none chattered and could easily get the car going with less than 1000rpm. IMO unless you have plans for big power down the road, don't go overkill on the clutch
Reply
Old Apr 15, 2010 | 06:27 PM
  #32  
Han Solo's Avatar
Han Solo
Burning Brakes
10 Year Member
 
Joined: Jan 2008
Posts: 986
Likes: 4
From: Galaxy Traveler
Default

Originally Posted by MTPZ06
OH...OK. I though you said you ordered Exedy and they gave you a Luk, but I guess I'm mistaken. Anyways, wasn't picking on you...just making a harmless joke.
That is what I said. I was just explaining it wasn't a bad thing. I was only looking for replacement quality parts and I got that at a significant savings. I didn't know that Luk components were what came in the car new at first. I questioned Exedy about it and they said they only manufactured performance parts but they bought and repackaged OEM replacement kits.

I didn't think you were picking at me or anything. I just wanted to explain the deal.
Reply




All times are GMT -4. The time now is 03:23 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE