Clutch Decision
Thread Starter
Burning Brakes
Joined: Jan 2006
Posts: 1,058
Likes: 5
From: Syracuse New York
Clutch Decision
So I am thinking of putting in the Centerforce Dual Friction clutch kit. What is the difference between 11" kit and the 12" kit. What are the advantages of both? Do I need to upgrade the stock LS6 flywheel? I have heard of everyone replacing the slave when changing the clutch, but why does everyone not replace the master as well. When putting in this new clutch do I need new pilot bearings and alignment tool, correct? I can order all of this stuff except the clutch from Gene, right? Sorry for all the questions, but I want to get my sticky clutch pedal fixed before I start adding power adders.
Tech Contributor
Joined: Jan 2007
Posts: 19,243
Likes: 1,091
From: Dyer, IN
So I am thinking of putting in the Centerforce Dual Friction clutch kit. What is the difference between 11" kit and the 12" kit. What are the advantages of both? Do I need to upgrade the stock LS6 flywheel? I have heard of everyone replacing the slave when changing the clutch, but why does everyone not replace the master as well. When putting in this new clutch do I need new pilot bearings and alignment tool, correct? I can order all of this stuff except the clutch from Gene, right? Sorry for all the questions, but I want to get my sticky clutch pedal fixed before I start adding power adders.
Thread Starter
Burning Brakes
Joined: Jan 2006
Posts: 1,058
Likes: 5
From: Syracuse New York
What does everyone think of the centerforce? I haven't found a bad review in any of the searches on the forum i've done. Do some believe that the textrelia with the X compound be better? With headers, intake, tune, and running about 385 to 400 rwhp would I want the 11" or the 12"? Also what is the difference going with aluminum vs. steel flywheel. I know that the aluminum is lighter so that means faster revs, but doesn't that mean faster drop in rpm to at the strip. So for street driveability would the steel or a stock LS6 flywheel refinished be better?
Last edited by SearayC5; Dec 22, 2008 at 12:40 AM.
Drifting
Joined: Sep 2007
Posts: 1,487
Likes: 215
From: Baie-Comeau Quebec
I have a centerforce DF 12" and a steel flywheel. Brand new in the box for sale.I have try one one a175Hp nitrous LS7 of my friends. Hold it no problem at the dragstrip 9.98 sec @ 142 mp/h. Stock drivability and pedal effort and no sound or cling clang sound at idle like a twin disk.
Let me know Im asking around 700$ for booth and I'll give you the align tool. PM me if you are interested.
Later,
Sébastien
Let me know Im asking around 700$ for booth and I'll give you the align tool. PM me if you are interested.
Later,
Sébastien
Instructor
Joined: Nov 2007
Posts: 122
Likes: 0
From: Spring TX
What does everyone think of the centerforce? I haven't found a bad review in any of the searches on the forum i've done. Do some believe that the textrelia with the X compound be better? With headers, intake, tune, and running about 385 to 400 rwhp would I want the 11" or the 12"? Also what is the difference going with aluminum vs. steel flywheel. I know that the aluminum is lighter so that means faster revs, but doesn't that mean faster drop in rpm to at the strip. So for street driveability would the steel or a stock LS6 flywheel refinished be better?
All i can say is WOW....Clutch feels a little firmer than the stock clutch, no noise, great launch and DEAD ON...
Highly recommended.
If you lived in TX i can't speak any better about FRANKS VETTES in Spring. The guy is a vette NUT and his work is FIRST CLASS.
Melting Slicks
Joined: Oct 2007
Posts: 2,798
Likes: 8
From: It's true money can't buy happiness, but it is more comfortable crying in a Corvette than on a bicyc
St. Jude Donor '13
I have 6500 miles on my CF DF. Should have went with the 12 inch but didn't Oddly the 12 inch is cheaper. Bought mine on Amazon, cheapest I found. I installed a Lite weight Chromoly flywheel from the auction site for like 180. or less. I replaced all hydraulics, the pilot bearing, and a remote bleeder from LAPD. I also used Wilwoods 600EXP fluid. I had to buy the alignment tool from Summit for under 8 bucks.
If you do the job yourself post up or read up on tips from those who went before you. I'll tell you now removing the factory pilot bearing is gonna be the most fun of the whole job. If you consider fun as using every four letter word you can think of. However if you have the right tool it's a breeze. Just ask and you'll get all the advice you need.
If you do the job yourself post up or read up on tips from those who went before you. I'll tell you now removing the factory pilot bearing is gonna be the most fun of the whole job. If you consider fun as using every four letter word you can think of. However if you have the right tool it's a breeze. Just ask and you'll get all the advice you need.
Instructor
Joined: Nov 2008
Posts: 156
Likes: 0
From: Manning SC
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From: At the beach in little Rhody
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Were doing a GROUP PURCHASE on the SPEC Duel Disk clutch. If your interested,,,,let me know!!
QUOTE
KURTOMAC
" I have coordinated a group buy for the spec twin disk from a forum vendor
If i get together 3 orders min i can get you a spec twin disck orangic 900 tq capacity (advertised 1399) for $1160 plus actual ship from spec ($38 in my case alabama to NC)
You will not find a lower price Ive searched for weeks!
Bill, Now get this if i can get together 5 orders we can do $1099 plus actual ship! Crazy prices.
If you have questions PM me and if you know anybody else interested have them PM me
I have 2-3 weeks to get these buyers for the group purchase
youre the first Ive contacted as you posted in my spec twin thread in the c5 tech section
let me know
Kurt Lind
PM or Email kurtomac24@yahoo.com
Contact Kurt if your interested.
Bill Curlee
QUOTE
KURTOMAC
" I have coordinated a group buy for the spec twin disk from a forum vendor
If i get together 3 orders min i can get you a spec twin disck orangic 900 tq capacity (advertised 1399) for $1160 plus actual ship from spec ($38 in my case alabama to NC)
You will not find a lower price Ive searched for weeks!
Bill, Now get this if i can get together 5 orders we can do $1099 plus actual ship! Crazy prices.
If you have questions PM me and if you know anybody else interested have them PM me
I have 2-3 weeks to get these buyers for the group purchase
youre the first Ive contacted as you posted in my spec twin thread in the c5 tech section
let me know
Kurt Lind
PM or Email kurtomac24@yahoo.com
Contact Kurt if your interested.
Bill Curlee
Pro
Joined: Jan 2006
Posts: 643
Likes: 2
From: Alexandria Northern Virginia
Stupid question I already know the answer to (you get what you pay for come to mind?):
Anybody here just go with a stock clutch? I see everybody on about what clutches work and where, etc. Spring Mountain had completely stock cars (C5 Z's ) with 25K track miles on them and a stock clutch.
I need to put a clutch in a C5 FRC I am going to road race/autocross and am not sure that the added money for a "performance" clutch is worth it if there are still sacrifices (like this combo chatters, this combo slips. etc). Interested on thoughts. Found a few stock setups on Amazon pretty cheap.
Cassidy
Anybody here just go with a stock clutch? I see everybody on about what clutches work and where, etc. Spring Mountain had completely stock cars (C5 Z's ) with 25K track miles on them and a stock clutch.
I need to put a clutch in a C5 FRC I am going to road race/autocross and am not sure that the added money for a "performance" clutch is worth it if there are still sacrifices (like this combo chatters, this combo slips. etc). Interested on thoughts. Found a few stock setups on Amazon pretty cheap.
Cassidy
Drifting
Joined: Jan 2000
Posts: 1,660
Likes: 9
From: Charlotte, NC
I have a Z-grip clutch and my advice is to stay away from that. It chatters terribly and I would be incredibly upset after spending all of this money if my car was a daily driver.
C4B4the04, most people put in aftermarket clutches because they're making so much power from other modifications that the stock clutch can't hold.
C4B4the04, most people put in aftermarket clutches because they're making so much power from other modifications that the stock clutch can't hold.
Racer
Joined: Jan 2006
Posts: 415
Likes: 1
From: Ft. Wayne In
12'' DF& stock flywheel,held up fine for two summers with very sticky tires at around 450rwhp. On my 4TH bottle of spray at 590rwtq it's started to slip,but has held up longer than I expected it to.
Safety Car
Joined: Apr 2003
Posts: 4,306
Likes: 772
From: Long Island NY
I am also looking at getting a CF DF clutch for my 2001 Z06 which is getting a cam installed and should be around 400rwtq. This Clutch is only like $400 new so it seems like a really good deal...and I want stock like driveability with no chatter in traffic which it sounds like this cluthc provides.
My question is, can I just buy the Clutch kit and use my stock flywheel? My flywheel was out of balance and they are going to be balancing it under warranty anyhow. My car has about 40k miles on it. The stock flywheels don't really "wear out" so to speak, do they?
Also, is replacing the slave and master cylinder really neccesary?
My question is, can I just buy the Clutch kit and use my stock flywheel? My flywheel was out of balance and they are going to be balancing it under warranty anyhow. My car has about 40k miles on it. The stock flywheels don't really "wear out" so to speak, do they?
Also, is replacing the slave and master cylinder really neccesary?
Last edited by kbreese; Dec 24, 2008 at 01:50 PM.
Le Mans Master
Joined: Dec 2003
Posts: 5,047
Likes: 251
From: San Diego
The Center force dual friction is a great clutch I ran one in my supercharger Z06 for a year. The clutch took everything I through at it now I have switched up to a Spec twin disk on my new motor and love this clutch also. The Center force is the way to go on a stock H/C or bolt motor
Racer
Joined: Jan 2006
Posts: 415
Likes: 1
From: Ft. Wayne In
You should have the clutch & flywheel balanced as an assembly.Any machine shop set up to do the balancing can re-surface your stock flywheel. There is a limit to the amount of wear on a flywheel,but they can usually be re-surfaced once or twice.You should replace the hydraulics with the clutch as a precaution so you don't risk having to do all the labor twice.Also pick up a "speed bleeder"hose to make fluid changes a snap.
I am also looking at getting a CF DF clutch for my 2001 Z06 which is getting a cam installed and should be around 400rwtq. This Clutch is only like $400 new so it seems like a really good deal...and I want stock like driveability with no chatter in traffic which it sounds like this cluthc provides.
My question is, can I just buy the Clutch kit and use my stock flywheel? My flywheel was out of balance and they are going to be balancing it under warranty anyhow. My car has about 40k miles on it. The stock flywheels don't really "wear out" so to speak, do they?
Also, is replacing the slave and master cylinder really neccesary?
My question is, can I just buy the Clutch kit and use my stock flywheel? My flywheel was out of balance and they are going to be balancing it under warranty anyhow. My car has about 40k miles on it. The stock flywheels don't really "wear out" so to speak, do they?
Also, is replacing the slave and master cylinder really neccesary?
Drifting
Joined: Sep 2007
Posts: 1,487
Likes: 215
From: Baie-Comeau Quebec
I am also looking at getting a CF DF clutch for my 2001 Z06 which is getting a cam installed and should be around 400rwtq. This Clutch is only like $400 new so it seems like a really good deal...and I want stock like driveability with no chatter in traffic which it sounds like this cluthc provides.
My question is, can I just buy the Clutch kit and use my stock flywheel? My flywheel was out of balance and they are going to be balancing it under warranty anyhow. My car has about 40k miles on it. The stock flywheels don't really "wear out" so to speak, do they?
Also, is replacing the slave and master cylinder really neccesary?
My question is, can I just buy the Clutch kit and use my stock flywheel? My flywheel was out of balance and they are going to be balancing it under warranty anyhow. My car has about 40k miles on it. The stock flywheels don't really "wear out" so to speak, do they?
Also, is replacing the slave and master cylinder really neccesary?
I could sell you the entire centerforce setup clutch and steel flywheel plus align tool brand new in the box 645$ usd shipped to you're door.I don't need them anymore due to another project.
Later,
Sébastien