What clutch...
Thread Starter
Racer
Joined: Sep 2008
Posts: 272
Likes: 0
From: Canton GA
What clutch...
Well I have searched but yielded no real answer. I have a 2003 Z06 with a mild cam, TEA ported stock heads, and headers, yadda yadda. The car only has 11k miles on it and it didnt start slipping until recently. during hard acceleration the 2-3 and 3-4th shift slips when I get back full on the accelerator the rpms continue to fall a little until they finally car and begin to accelerate again. The car makes 435whp and 402ft-lb... I will be swapping out the stock manifold for a fast here soon and prob swap the heads for some AFR 205's or something like it. I figure an overall power range of about 450-460whp and 420 ft-lb.
What are your clutch suggestions at this power level I will not have to be able to squat 1100lbs in order to engage/dis-engage the pedal? Clutch chatter is a pain so minimal chatter as well as good daily driveability as a lot of my around town time is spent in stop and go.
Thanks in advance,
J
What are your clutch suggestions at this power level I will not have to be able to squat 1100lbs in order to engage/dis-engage the pedal? Clutch chatter is a pain so minimal chatter as well as good daily driveability as a lot of my around town time is spent in stop and go.
Thanks in advance,
J
Last edited by iLLuZionZ; Jun 29, 2009 at 03:28 PM.
Drifting
Joined: May 2007
Posts: 1,546
Likes: 30
From: WENTZVILLE MO
Look at the Centerforce Dual Friction clutch. I think the cost is less than say a Monster Clutch. I ran into a guy with a completely built Z (610rwhp) and that is what he is using and has no problems and no chatter. I have been researching myself. The built Z guy said it felt like stock and he does race the car. Has been at it for over a year.
Race Director
Joined: Mar 2001
Posts: 11,405
Likes: 26
From: Whippany NJ
CI 6-7-8-9 Veteran
St. Jude Donor '08-'09
NCM Sinkhole Donor
Check out the Monster 2.5 or 3.5 series...
http://www.monsterclutches.com/gm.html
They are on sale here:
http://forums.corvetteforum.com/c5-g...-shipping.html
http://www.monsterclutches.com/gm.html
They are on sale here:
http://forums.corvetteforum.com/c5-g...-shipping.html
Last edited by Ikester; Jun 30, 2009 at 12:06 PM.
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Intermediate
Joined: May 2004
Posts: 35
Likes: 0
From: Little Elm TX
I had to go with a dual disk clutch when producing 433 RWHP in a track-only car. Had the same symptoms you've observed but unfortunately I thought I had a hydraulic problem and replaced both the master and slave cylinders before I figured out it was the clutch/pressure plate flexing under pressure. Replaced the clutch and that problem went away. From my experience, the next 'weak link' in the C5 drivetrain is the differrential housing. I had 3.73 gears in a DTE Stage 2 diff and was running 335x17 Kumho V710s. When downshifting, the ring gear pushed thru the right side of the case. After installing a 4th diff (I'm a slow learner!) I realized you cannot engine-brake a C5 and expect the differential housing to survive under race conditions. NOTE: regardless of what the casting numbers and 8 digit part numbers say, the 2004 differential case IS DIFFERENT than other C5s. It was strengthened to reduce the right-side breakage.
Le Mans Master
Joined: Oct 2006
Posts: 6,080
Likes: 0
From: Houston TX
I ask why in the open? I have had no issues as of yet.10k m on spray and boost. Only issue I had was when I installed it. I was not aware that you could not use ARP bolts with them.
Inquiring minds want to know
Inquiring minds want to know
Melting Slicks
Joined: Sep 2003
Posts: 2,062
Likes: 117
The second Exoskel slipped at the drag strip after 400 miles of brake-in, on the first pass...I did a secong one and it burned up:
With the clutch in my sig...only fast up****ing and complete drivability...no more concerns with the clutch...
Christian
Le Mans Master
Joined: Oct 2006
Posts: 6,080
Likes: 0
From: Houston TX
Sucks *****!
Thanks for the pics. So far I have done well. Was going to send it out to upgrade to the triple but have no need to pull it yet. Sorry to hear you had crappy luck with them.
I'm having crappy luck with optima batteries at the present, but that's a different thread.
Thanks for the pics. So far I have done well. Was going to send it out to upgrade to the triple but have no need to pull it yet. Sorry to hear you had crappy luck with them.
I'm having crappy luck with optima batteries at the present, but that's a different thread.
Drifting
Joined: May 2007
Posts: 1,546
Likes: 30
From: WENTZVILLE MO
Melting Slicks
Joined: May 2003
Posts: 2,851
Likes: 1
From: San Bruno Ca
Sounds like you glazed the surface of the clutch disc. I was using a stock oem clutch for a long time with turbos while making about 540 rwhp and 520 tq, with no problems slipping and I even ran it on Drag radials and never a hint of slip. I swapped it out after 25,000 miles and it looked like new. I only swapped it out because of the notorious "sticking" clutch pedal issue many modded C-5s and C-6s have. KNowing what I know now, I would of first swapped out the master cylinder for a "Tick performance" master cylinder to see if it cures the dreaded sticking pedal issue.
If you drive the car around for a few hundred miles easily and not slip the clutch too much, it may wear the glaze off your clutch disc if its not too badly glazed.
If you drive the car around for a few hundred miles easily and not slip the clutch too much, it may wear the glaze off your clutch disc if its not too badly glazed.
