Clutch replacement questions - ZR-1 Net Registry Forums

LGAFF · 06-27-2009

-Are Luk clutches any good?
-What is the weight of the dual mass flywheel?

IowaZR-1 · 06-27-2009

There's a used one for sale on fleabay it says 36 lbs.

http://cgi.ebay.com/ebaymotors/1990-...Q5fAccessories

WB9MCW · 06-27-2009

The dual mass flywheel is heavy and slow to rev --- very popular mod is to go with a Fidanza and a ceramic clutch up grade -- Many of us use Carolina Clutch for the supplier --great guys there IMO

Following are comments and threads on it all from prior posts
===========================================

You can go race with a ceramic like I did with a Carolina setup. If you are interested in the race setup just email the boyz at Carolina and they will get you all set up with a turn key package like they did me. My clutch was shot and I wanted a performance one so I went ceramic and with a Fidanza Alum flywheel I like it very aggressive however -- super tight grip action! But get ready for the dreaded syncro's gear rattle ---

I went stage 3 for my 92 Z

http://www.carolinaclutch.com/showitem/108823.aspx

http://www.carolinaclutch.com/ListIt...0Flywheel.aspx

WB9MCW · 06-27-2009

the conversion does result in a very noisy gear rattle sound...at idle(unless clutch pushed in) it is almost embarrassing..when lugging the engine(low rpms,,,ie around corners slow traffic areas ect.) and when starting off in 1st and in 2nd gear just for a bit after the gear shift....that being said I still dont mind since I did a ceramic clutch upgrade...and I can rev higher/faster do to lower mass and dump the clutch at 3500 vs stock 2500rpm dumps...the resulting burnout is unbelivable...(did a custom chip as well..with fans going on at 190f vs the stupid 230f stock)...she burns rubber all the way through 1st...squacks into second and chirps into third....never did she do that b4 that is for sure!!!! I love the performance enhancemant...but I have to say the gear rattle...more of a rut....rut...rut...rut...sound is very annoying to say the least(the rattle is the gears and syncros in the zf truck tranny...now that u dont have a balanced dual mass flywheel) the good news is that dm flywheels do go out and are big $$$(although some bargins on used and rebuildt ones do exist)so doing the conversion does put the stock one on the shelf for the next owner if they ever wanted to go back to the quiet stock arrangement.. All said I love the performance enhancement but hate the noise...typical of life always a tradeoff...My best friend and my pro mechanic and a c5 owner (Big Mike) said no way he could live with it if it were his vette...but then again he would get a lot of static from others(being a shop owner..repair shop)...and everyone would bug him on it... It sounds like a pilot bearing gone bad...and gearheads can't help but notice and comment...LOL so if u can take the ribbing..and have a strong ego(like me)(dont give a crap about what others think..just care abt what I like) then go for it...if u worry abt what others will say or think and give u a hard time abt it..then stay stock...cause belive me they will look, gawk, talk,question, and comment how they could never tolerate this bloody noise then stay with ur stock balanced dual mass flywheel...but if u want a quick revving,,bad-***,,hard pounding gear shifting,,,rubber squeeling ZR-1 then go for it!!! Just IMO but I'll take the Hi-Po ceramic clutch and noisy rut,rut,rut anyday!!!!

WB9MCW · 06-27-2009

Full Thread on the rattle

http://zr1netregistry.com/forum/show...ny+gear+rattle

WB9MCW · 06-27-2009

A poll Zfactor did on the aftermarket flywheels

http://zr1netregistry.com/forum/show...ny+gear+rattle

WB9MCW · 06-27-2009

When the Dual Mass goes bad thread

http://zr1netregistry.com/forum/show...ny+gear+rattle

There ya go buddy LG all you ever wanted to know abt it all!!!

BTW Carolina sell LUK because my ceramic clutch from them came in a LUK box and it now is the keeper of my DM factory clutch sitting on my shelf in the garage.

Kb7tif · 06-27-2009

I just put the fidanza in my 92. I get almost no noise at idle, but some at LOW throttle takeoff. Its embarrassing when someone else is in the car. But im keeping it. Stock clutch/plate. Easy Mod.
Car revs like never before.
Have Headers ready to put in, waiting until sept/oct, also will do a topend port at that time.

Ccmano · 06-27-2009

I believe LUK was the orignal equipment supplier and still supplies to GM and many others. It's a German company with manufacturing plants all over the world. Quality stuff.
H

rhipsher · 06-27-2009

I went with the Fidanza flywheel and Centerforce sprung hub disk and the stock preasure plate. It works awsome. I have very little noise from it but it does make a little rattle only in nuetral. Some will be louder than others. But you will notice a difference in how the rpm's wrap up faster than with the duel mass.

06-27-2009	#1
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Clutch replacement questions -Are Luk clutches any good? -What is the weight of the dual mass flywheel? __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

06-27-2009	#2
IowaZR-1 Join Date: Feb 2006 Location: Iowa aka "one big cornfield" Posts: 341	Re: Clutch replacement questions There's a used one for sale on fleabay it says 36 lbs. http://cgi.ebay.com/ebaymotors/1990-...Q5fAccessories

06-27-2009	#3
WB9MCW Join Date: Dec 2003 Location: McHenry, Il. Posts: 6,607	Re: Clutch replacement questions The dual mass flywheel is heavy and slow to rev --- very popular mod is to go with a Fidanza and a ceramic clutch up grade -- Many of us use Carolina Clutch for the supplier --great guys there IMO Following are comments and threads on it all from prior posts =========================================== You can go race with a ceramic like I did with a Carolina setup. If you are interested in the race setup just email the boyz at Carolina and they will get you all set up with a turn key package like they did me. My clutch was shot and I wanted a performance one so I went ceramic and with a Fidanza Alum flywheel I like it very aggressive however -- super tight grip action! But get ready for the dreaded syncro's gear rattle --- I went stage 3 for my 92 Z http://www.carolinaclutch.com/showitem/108823.aspx http://www.carolinaclutch.com/ListIt...0Flywheel.aspx __________________ http://i119.photobucket.com/albums/o...9mcw/SIG-2.jpg http://i119.photobucket.com/albums/o128/wb9mcw/vcm.gif "The Budget should be balanced, the Treasury should be refilled, public debt should be reduced, the arrogance of officialdom should be tempered and controlled, and the assistance to foreign lands should be curtailed, lest Rome will become bankrupt. People must again learn to work instead of living on public assistance." - Cicero, 55 BC " We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution but to overthrow the men who pervert the Constitution." - Abraham Lincoln Last edited by WB9MCW; 06-27-2009 at 01:32 PM.

06-27-2009	#4
WB9MCW Join Date: Dec 2003 Location: McHenry, Il. Posts: 6,607	Re: Clutch replacement questions the conversion does result in a very noisy gear rattle sound...at idle(unless clutch pushed in) it is almost embarrassing..when lugging the engine(low rpms,,,ie around corners slow traffic areas ect.) and when starting off in 1st and in 2nd gear just for a bit after the gear shift....that being said I still dont mind since I did a ceramic clutch upgrade...and I can rev higher/faster do to lower mass and dump the clutch at 3500 vs stock 2500rpm dumps...the resulting burnout is unbelivable...(did a custom chip as well..with fans going on at 190f vs the stupid 230f stock)...she burns rubber all the way through 1st...squacks into second and chirps into third....never did she do that b4 that is for sure!!!! I love the performance enhancemant...but I have to say the gear rattle...more of a rut....rut...rut...rut...sound is very annoying to say the least(the rattle is the gears and syncros in the zf truck tranny...now that u dont have a balanced dual mass flywheel) the good news is that dm flywheels do go out and are big $$$(although some bargins on used and rebuildt ones do exist)so doing the conversion does put the stock one on the shelf for the next owner if they ever wanted to go back to the quiet stock arrangement.. All said I love the performance enhancement but hate the noise...typical of life always a tradeoff...My best friend and my pro mechanic and a c5 owner (Big Mike) said no way he could live with it if it were his vette...but then again he would get a lot of static from others(being a shop owner..repair shop)...and everyone would bug him on it... It sounds like a pilot bearing gone bad...and gearheads can't help but notice and comment...LOL so if u can take the ribbing..and have a strong ego(like me)(dont give a crap about what others think..just care abt what I like) then go for it...if u worry abt what others will say or think and give u a hard time abt it..then stay stock...cause belive me they will look, gawk, talk,question, and comment how they could never tolerate this bloody noise then stay with ur stock balanced dual mass flywheel...but if u want a quick revving,,bad-***,,hard pounding gear shifting,,,rubber squeeling ZR-1 then go for it!!! Just IMO but I'll take the Hi-Po ceramic clutch and noisy rut,rut,rut anyday!!!! __________________ http://i119.photobucket.com/albums/o...9mcw/SIG-2.jpg http://i119.photobucket.com/albums/o128/wb9mcw/vcm.gif "The Budget should be balanced, the Treasury should be refilled, public debt should be reduced, the arrogance of officialdom should be tempered and controlled, and the assistance to foreign lands should be curtailed, lest Rome will become bankrupt. People must again learn to work instead of living on public assistance." - Cicero, 55 BC " We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution but to overthrow the men who pervert the Constitution." - Abraham Lincoln

06-27-2009	#5
WB9MCW Join Date: Dec 2003 Location: McHenry, Il. Posts: 6,607	Re: Clutch replacement questions Full Thread on the rattle http://zr1netregistry.com/forum/show...ny+gear+rattle __________________ http://i119.photobucket.com/albums/o...9mcw/SIG-2.jpg http://i119.photobucket.com/albums/o128/wb9mcw/vcm.gif "The Budget should be balanced, the Treasury should be refilled, public debt should be reduced, the arrogance of officialdom should be tempered and controlled, and the assistance to foreign lands should be curtailed, lest Rome will become bankrupt. People must again learn to work instead of living on public assistance." - Cicero, 55 BC " We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution but to overthrow the men who pervert the Constitution." - Abraham Lincoln

06-27-2009	#6
WB9MCW Join Date: Dec 2003 Location: McHenry, Il. Posts: 6,607	Re: Clutch replacement questions A poll Zfactor did on the aftermarket flywheels http://zr1netregistry.com/forum/show...ny+gear+rattle __________________ http://i119.photobucket.com/albums/o...9mcw/SIG-2.jpg http://i119.photobucket.com/albums/o128/wb9mcw/vcm.gif "The Budget should be balanced, the Treasury should be refilled, public debt should be reduced, the arrogance of officialdom should be tempered and controlled, and the assistance to foreign lands should be curtailed, lest Rome will become bankrupt. People must again learn to work instead of living on public assistance." - Cicero, 55 BC " We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution but to overthrow the men who pervert the Constitution." - Abraham Lincoln

06-27-2009	#7
WB9MCW Join Date: Dec 2003 Location: McHenry, Il. Posts: 6,607	Re: Clutch replacement questions When the Dual Mass goes bad thread http://zr1netregistry.com/forum/show...ny+gear+rattle There ya go buddy LG all you ever wanted to know abt it all!!! BTW Carolina sell LUK because my ceramic clutch from them came in a LUK box and it now is the keeper of my DM factory clutch sitting on my shelf in the garage. __________________ http://i119.photobucket.com/albums/o...9mcw/SIG-2.jpg http://i119.photobucket.com/albums/o128/wb9mcw/vcm.gif "The Budget should be balanced, the Treasury should be refilled, public debt should be reduced, the arrogance of officialdom should be tempered and controlled, and the assistance to foreign lands should be curtailed, lest Rome will become bankrupt. People must again learn to work instead of living on public assistance." - Cicero, 55 BC " We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution but to overthrow the men who pervert the Constitution." - Abraham Lincoln Last edited by WB9MCW; 06-27-2009 at 01:39 PM.

06-27-2009	#8
Kb7tif Join Date: May 2009 Location: S Nevada Posts: 352	Re: Clutch replacement questions I just put the fidanza in my 92. I get almost no noise at idle, but some at LOW throttle takeoff. Its embarrassing when someone else is in the car. But im keeping it. Stock clutch/plate. Easy Mod. Car revs like never before. Have Headers ready to put in, waiting until sept/oct, also will do a topend port at that time. __________________ 1995 Convertible Supercharged Auto 1974 454 550hp (avatar car) On the blocks- -Scharger install ! 1992-Zr-1 Sold. Watson Headers Ported Plenum, Housings Random tech cats Fidanza Flywheel Chipped, Relocated Mat Woods 165 stat Borlas, Straights 1996 Lt4 Sold 1994 Lt1 Sold 2004 Z06 Sold AKA** Illenema Last edited by Kb7tif; 06-27-2009 at 09:08 PM.

06-27-2009	#9
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	Re: Clutch replacement questions I believe LUK was the orignal equipment supplier and still supplies to GM and many others. It's a German company with manufacturing plants all over the world. Quality stuff. H __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold.

06-27-2009	#10
rhipsher Join Date: Aug 2008 Location: Houston 90 Red ZR-1 Posts: 2,320	Re: Clutch replacement questions I went with the Fidanza flywheel and Centerforce sprung hub disk and the stock preasure plate. It works awsome. I have very little noise from it but it does make a little rattle only in nuetral. Some will be louder than others. But you will notice a difference in how the rpm's wrap up faster than with the duel mass.