Whats the difference?

1916baja Custom Title Time!

1,990 posts · joined Sep 2007 · 5 Jan 2010, 7:45 pm

#755853

What's the difference between a 4 puck clutch disc and a normal one?

Cheers
Mick.

barls Administrator Causer of Chaos and Mayhem

9,473 posts · joined Jun 2004 · 5 Jan 2010, 8:08 pm

#755861

surface area for a start.
the four puck only has a small area for interface where as the standard it is complete 360 degreee

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jsheppard64 Officially Full-On Dubber

323 posts · joined Mar 2008 · 6 Jan 2010, 12:58 am

#755908

I wonder about this too
so pressure is Force over Area right?
having smaller area on the clutch plate would experience more force and therefore it would grip more?
but having less surface area on the friction pad make them perform the same? (assuming nothing was changed with the pressure plate)

note : '?' on almost every sentences
cheers

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 · 6 Jan 2010, 5:40 am

#755915

the puck clutches usually have a metallic friction material copper
where as the full stock clutches havea fiber surface

I read it on FACEBOOK so it must be true

http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630

http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099

http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603

http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

1916baja Custom Title Time!

1,990 posts · joined Sep 2007 · 6 Jan 2010, 6:07 am

#755923

so does that make a 4 puck clutch better than a normal one?

Sides Veteran Volks Folk

2,220 posts · joined May 2007 · 6 Jan 2010, 7:32 am

#755935

Depends on what you mean by "better".

My understanding is a 4 puck etc. will grip better overall, but because the pressure plate is the same and moves in/out at the same rate, well you lose a large amount of of control over that grip.

Basically they become on or off...great for racing (providing drive line is strong enough to take it), but lack of smoothness/control not so great for street driving.

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matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 6 Jan 2010, 8:03 am

#755937

Yep Dave is right. There are puck clutches that have differing numbers of pucks too. You see 3, 4, 5 and maybe even 6 pucks, all in the quest to try and smooth thier operatioin. They have crap operation and increased holding power because the clutch shoe (clamping bit of the pressure plate) literally distorts around the pucks thus gripping better. These days there are plenty of better options with better pressure in the pressure plate and linings with more friction, not to mention for really big hp, multi disc clutches. No one needs a puck clutch these days, they destroy transmission and driveline components and are a pig to drive. The best day owning a puck clutch is the day you remove it. They also trash the flywheel and pressure plate surfaces due to the metalic linings and heat. IMHO

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 · 6 Jan 2010, 9:45 am

#755953

yeah the pucks are very sever

depends on what your doing with the car ideally for Drags where u need a good start

I read it on FACEBOOK so it must be true

http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630

http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099

http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603

http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

BiX Veteran Volks Folk

2,499 posts · joined Sep 2002 · 6 Jan 2010, 11:41 am

#755969

I have driven a few puck clutched cars, and most as stated above had a very on/off feel about them. Some well set up examples were fine, but most were on/off. As sides said your gb and axles need to be up to the task. One evo I know went to a button carbonic clutch after always spinning a std one. (the evo has a week clutch as the fuse point in the driveline!). with semi slicks, the puck clutch and motec, it blew the front diff and gb apart..... allot of money!

If you don't need it stay with a standard. I run a standard clutch/material with a stage 1 kennedy and haven't had a problem with 130hp+ at the wheels....

I have no sympathy for my car, only the wallet that pays for it!
Go hard or go home!!!!

Special Air Service Chief "Gunna"

1,769 posts · joined Oct 2004 · 6 Jan 2010, 1:23 pm

#755983

I know what you mean....

my clutch is almost pucked

😂😂😂😂

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68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 · 6 Jan 2010, 1:47 pm

#755995

1916baja wrote:so does that make a 4 puck clutch better than a normal one?

NO... Very Severe... On or Off

they don't slip...

are Metallic usually...

I wouldn't have one..

LEE

- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 6 Jan 2010, 3:17 pm

#756018

I have setup and driven a few over the years. My old DC bay had a 2.2 911 160 hp Porsche 6 cylinder through a 200mm hd clutch and 4 puck. No slip issues except trying to take off on a hill towing the race car was a bit of an art to get right. It's a way of getting more clutch for few $$$'s, but a better solution can be had for sure.

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

jsheppard64 Officially Full-On Dubber

323 posts · joined Mar 2008 · 6 Jan 2010, 4:56 pm

#756034

68AutoBug wrote:
1916baja wrote:so does that make a 4 puck clutch better than a normal one?
NO... Very Severe... On or Off

they don't slip...

are Metallic usually...

I wouldn't have one..

LEE

Hi Lee

Isn't yours an auto

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 · 6 Jan 2010, 9:48 pm

#756110

jsheppard64 wrote:
68AutoBug wrote:
1916baja wrote:so does that make a 4 puck clutch better than a normal one?
NO... Very Severe... On or Off

they don't slip...

are Metallic usually...

I wouldn't have one..

LEE
Hi Lee

Isn't yours an auto

Still has a clutch though, they're very......complicated.

Smiley

If you said I was a Volkswagen man, you'd be right.

1916baja Custom Title Time!

1,990 posts · joined Sep 2007 · 6 Jan 2010, 10:28 pm

#756114

right! so puck clutch =bad. Thanks for the info guys, really helpfull.

Mick.

BiX Veteran Volks Folk

2,499 posts · joined Sep 2002 · 7 Jan 2010, 8:47 am

#756149

With all things no black and white. But yes, unless you have a 200hp+ moster a std clutch with maybe a better pressure plate is all you need.

Puck clutches have their place.

I have no sympathy for my car, only the wallet that pays for it!
Go hard or go home!!!!