Performance clutch? - ZR-1 Net Registry Forums

va beach biker · 12-17-2007

The car is most likely going to get a Fidanza flywheel this winter, it would seem like the time to put in a clutch as well. Any points as to a good choice - Centerforce, Carolina, etc?

Cdn ZR1 Mike · 12-29-2007

No responses?? I'm in the same boat.....

Jagdpanzer · 12-29-2007

I've got a Fidanza flywheel going in this winter as well and I'm staying with the stock disk and pressure plate as it has only 7500 miles on it and it is working fine.
I thought about ungrading however, after reading Haibeck's comments on the issue http://www.zr1specialist.com/HAT%20W...eel-clutch.htm decided stick with what the General issued for now.

tccrab · 12-29-2007

From what I've read over the years, the stock clutch is just fine for nearly all stock/mildly modded street applications.
Highly modified cars need more sticky and less civility for drag racing, so they generally opt for the aftermarket kevlar type clutches and they have to change them regularily.

If after reading Marc Haibec's write up you still have questions, contact Bill Boudreau, "The ZF Doc".
http://www.zfdoc.com/

rkreigh · 12-30-2007

I'm running the stock clutch on the fidanza. with the LPE 390 and the 234 cams, the rattle is pretty loud, but with the B&B exh, you really don't hear it that much inside the car. I did notice that drag racing the car (508 rwhp) as marc mentioned I'm at the limit the stock clutch can take and it can get glazed pretty easily.

we also tried a mcleod sprung disk and had a rather dramatic failure, one side of the disk had about 1/3 of the material let go after one burnout.

I have to think that this was likely just a defective disk, as marc has used these disks quite a bit with good results.

when going to the fidanza, you should consider a sprung hub disk to help quiet things down. the stock disk is solid, and will be a bit noisier, although in my application, I honestly didn't notice any difference at all. it was loud before, and it's still loud!!

the fidanza is a good alternative, just be prepared for the gear rattle. having the chip updated for a bit higher idle speed helps, and also many zf boxes are quieter than others, the boxes that bill b blueprints seem to be quieter and shift better too!!

12-30-2007

If you are looking for a nice sprung disc, take a look at the McLeod 261871. It's a kevlar disc and is sprung.

But for all purposes, a stock clutch disc is fine. Dwight still runs one in his 415, although it did get a little hot at the BG drags from hot lapping it.

RHanselman · 12-31-2007

Quote:

Originally Posted by Jeffvette

If you are looking for a nice sprung disc, take a look at the McLeod 261871. It's a kevlar disc and is sprung.

But for all purposes, a stock clutch disc is fine. Dwight still runs one in his 415, although it did get a little hot at the BG drags from hot lapping it.

Jeff,

What would you recommend for 800 chp and above?

Cheers,
Ron

Jagdpanzer · 12-31-2007

With a Fidanza al flywheel does the spring hub of the McLeod 261871 help reduce the gear rattle much?

ZR1 MK · 01-04-2008

I use the Spec Stage 2 pressure plate and clutch with the Fidanza. Never tried other aftermarket stuff on this car, so I can only compare to stock. I like the results. You wont eliminate the slight rattle, but the springs help.

Usa1-Zr1 · 01-05-2008

I have the same set-up as above in my Ruby with proper break-in it's doing great.

12-17-2007	#1
va beach biker Join Date: Oct 2006 Location: Virginia Beach Posts: 46	Performance clutch? The car is most likely going to get a Fidanza flywheel this winter, it would seem like the time to put in a clutch as well. Any points as to a good choice - Centerforce, Carolina, etc? __________________ 1991 Red / Black SLP Intake / Haibeck Chip / B&B Catback

12-29-2007	#2
Cdn ZR1 Mike Join Date: Nov 2004 Posts: 38	Re: Performance clutch? No responses?? I'm in the same boat..... __________________ 1990 ZR1 Ported Intake, IH's and PC'd (JeffVette), 4:10's, SLP air intake, SW headers, X-pipe with flowmasters. Haibeck chip. 12.1 @117mph on GSD-3's. :mrgreen:

12-29-2007	#3
Jagdpanzer Join Date: Apr 2007 Location: Northern VA Posts: 2,661	Re: Performance clutch? I've got a Fidanza flywheel going in this winter as well and I'm staying with the stock disk and pressure plate as it has only 7500 miles on it and it is working fine. I thought about ungrading however, after reading Haibeck's comments on the issue http://www.zr1specialist.com/HAT%20W...eel-clutch.htm decided stick with what the General issued for now.

12-29-2007	#4
tccrab Join Date: Oct 2004 Location: Folsom CA Posts: 1,655	Re: Performance clutch? From what I've read over the years, the stock clutch is just fine for nearly all stock/mildly modded street applications. Highly modified cars need more sticky and less civility for drag racing, so they generally opt for the aftermarket kevlar type clutches and they have to change them regularily. If after reading Marc Haibec's write up you still have questions, contact Bill Boudreau, "The ZF Doc". http://www.zfdoc.com/ __________________ TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B]

12-30-2007	#5
rkreigh Join Date: Jan 2004 Location: Alex VA Posts: 1,087	Re: Performance clutch? I'm running the stock clutch on the fidanza. with the LPE 390 and the 234 cams, the rattle is pretty loud, but with the B&B exh, you really don't hear it that much inside the car. I did notice that drag racing the car (508 rwhp) as marc mentioned I'm at the limit the stock clutch can take and it can get glazed pretty easily. we also tried a mcleod sprung disk and had a rather dramatic failure, one side of the disk had about 1/3 of the material let go after one burnout. I have to think that this was likely just a defective disk, as marc has used these disks quite a bit with good results. when going to the fidanza, you should consider a sprung hub disk to help quiet things down. the stock disk is solid, and will be a bit noisier, although in my application, I honestly didn't notice any difference at all. it was loud before, and it's still loud!! the fidanza is a good alternative, just be prepared for the gear rattle. having the chip updated for a bit higher idle speed helps, and also many zf boxes are quieter than others, the boxes that bill b blueprints seem to be quieter and shift better too!! __________________ 95 390 LPE ZR1 (505 rwhp) LSV = Lingenfelter Super Vette Twin Turbo 2003 Z06 (800 RWHP)

12-30-2007	#6
Jeffvette Guest Posts: n/a	Re: Performance clutch? If you are looking for a nice sprung disc, take a look at the McLeod 261871. It's a kevlar disc and is sprung. But for all purposes, a stock clutch disc is fine. Dwight still runs one in his 415, although it did get a little hot at the BG drags from hot lapping it.

12-31-2007	#8
Jagdpanzer Join Date: Apr 2007 Location: Northern VA Posts: 2,661	Re: Performance clutch? With a Fidanza al flywheel does the spring hub of the McLeod 261871 help reduce the gear rattle much?

01-04-2008	#9
ZR1 MK Join Date: Aug 2005 Location: NY Posts: 143	Re: Performance clutch? I use the Spec Stage 2 pressure plate and clutch with the Fidanza. Never tried other aftermarket stuff on this car, so I can only compare to stock. I like the results. You wont eliminate the slight rattle, but the springs help. __________________ Mike 427 cu in LT5 [URL="http://zr1mk.weebly.com"]http://zr1mk.weebly.com[/URL]

01-05-2008	#10
Usa1-Zr1 Join Date: Nov 2006 Location: Greenville Ohio Posts: 111	Re: Performance clutch? I have the same set-up as above in my Ruby with proper break-in it's doing great. __________________ Ruby ZR-1 car #95 lots of bolt-ons never opened up 390- RWHP