What to look for in a clutch?

I just have a stock one right now, and its on its way out. It likes to slip whenever i try to tug someone out, and it was looking a little thin when I put the engine in.
So, whats the hot ticket?
I was thinking a 6 puck sprung hub thing from some place.
Yeah?
Any brands to stay away from?
I've also got some spare pressure plates to add some straps on the pressure plate, cause I hear those like to break in vw's.



Edited 1 time(s). Last edit at 07/24/2006 05:40PM by Carl S.

I've heard a lot of people unhappy with both the Centerforce dual friction (CFDF) as well as Spec clutches. I'm sure there are going to be all kinds of useful replies to this thread which will blow my mind, but I would suggest possibly calling up South Bend Clutch to talk with them about your needs and what they can do for you. Since I am from the non-turbo side of the DSM tracks, we can't just buy an ACT clutch off the shelf and these guys have built a reputation in my community for being honest guys who are genuinely interested in hearing what you need and why you need it before the suggest anything.

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Brian Driggs | KG7KCA | PHX, AZ | 89 Pajero
alterius non sit qui suus esse potest

Hey Flying Fly Squadron leiter,
I'd go for a sprung center 4 puck clutch, maybe even a 3 puck
No point to go for 6. AP Racing supplies a 4 puck for rip-snortin a' rootin an a tootin GpA Cosworths so why go more for a widdle bitty sorta-wabbit??
I use and reccoment Clutch net and have supplied such famous VW drivers as Derek Bottle.
Worked good for him.

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John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.

Excusez moi, what car ?

I get my clutches from clutchnet.com even though they are Russian, they take their business very serious and their clutches never failed under my abuse. I use a sprung pressure plate and 6 puck. I had some problems with 3 aqnd 4 plucks so I used straight logic, with a 3 puck, you get one rivet failiure, you lose 33%, 4 puck 25%, 6 puck 17%.

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Cheers
M.Samli
Phoenix AZ
Gaylant VR4
EVO III GSR (Stolen)


Rallies are no place for traitors

What has more bite? A 6 or a 4 pucker?

We used 6 puck from Clutch net in the Audi. Lasted usually 2-3 events. Which with the amount of clutch abuse the driver did and the amount of horsepower that's saying alot.

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Grant Hughes

As far as bite is concerned 4 puck and 6 puck are very similar. Contact surfaces are almost identical. If you have a less than perfect flywheel surface the 4 puck will flex less.

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Cheers
M.Samli
Phoenix AZ
Gaylant VR4
EVO III GSR (Stolen)


Rallies are no place for traitors

sagsert Wrote:
-------------------------------------------------------
> As far as bite is concerned 4 puck and 6 puck are
> very similar. Contact surfaces are almost
> identical.
Good math moosie,
the pucks are the same area each, say 15sq cm.
4 pucks would be 60 sq cm, 6 pucks 90 sq cm.
yeah 30 more cm sq 30 is 50% of 60.
Almost identical.

Bad Mooosie, go stand in the corner with only 1 ciggie and NO TEA!



If you have a less than perfect
> flywheel surface the 4 puck will flex less.

It seem s the consensus that if the pressure plate makes say 1000 lb/sq in pressure 1000 spread over 4 pucks of "X" are means more presssure per square inch than 1000 spread over 6 pucks.
>
> Cheers
> M.Samli
> Phoenix AZ
> Gaylant VR4
> EVO II GSR
> STC Mouthpiece
> Instigator Extraordinaire
>
> Avatars are like underwear, change them daily.

---

John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.

FWIW I got a Clutchnet full ring type clutch (I agree they are very nice guys too). I asked about using a puck style for my Subaru (stock WRX 2.0l Turbo engine) and that is what they recommended. Igor (the boss man I think) had said that a client had used a puck for the same type of application and found it a little harsh. I guess I'll find out when I eventually get this godforsaken car finished!

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Nick Taylor.
Knobhead.
Los Angeles, CA.

nick the brit Wrote:
-------------------------------------------------------
> FWIW I got a Clutchnet full ring type clutch (I
> agree they are very nice guys too). I asked about
> using a puck style for my Subaru (stock WRX 2.0l
> Turbo engine) and that is what they recommended.
> Igor (the boss man I think) had said that a client
> had used a puck for the same type of application
> and found it a little harsh. I guess I'll find
> out when I eventually get this godforsaken car
> finished!
>
> Nick Taylor.

A little harsh as in the dude personally didnt like the engaugement or that it was too difficult to drive?

I'm thinking I may just go with the 4 pucker, it'll sound more hardcore when I pull up at the street races, is cheaper, and will be lotsa better than stock. I just hope I dont have to line up against any excels with ignition modz at the lights.

Thanks for the advice, guys. And as the lord of the legion of flying flies, I will spare thee from a mighty smiting once we take over the world.

But Johnny, the 4 puck and the 6 puck i have only have >3% difference on contact surface area. But I am comparing 2 clutches from 2 different manufacturers, I knew there was a reason why I kept the 4 puck that disintegrated, now I can throw it in the garbage.

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Cheers
M.Samli
Phoenix AZ
Gaylant VR4
EVO III GSR (Stolen)


Rallies are no place for traitors

>
> A little harsh as in the dude personally didnt
> like the engaugement or that it was too difficult
> to drive?


The impression I got was that it was a bit too much on or off, so yes the engagement. That would also make it a bitch to drive on the street too.
And since a harsh engagement bet stress the weak ol' Subaru trans I went with the full ring. Might not make much of a difference since I got a straight cut dogbox anyway, so will not use the clutch as often - once I learn how to do it anyhoo.

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Nick Taylor.
Knobhead.
Los Angeles, CA.

cdxc/0 jgdxf
Moosie, that's what my 16 month old daughter thinks of your comparing two different brands.
Now you forced me to go and actually measure a Clutch-Net puck you pucker.
EACH one is 2040mm sq
4 x 2040mm sq is 8160mm sq
6 x 2040mm sq is 12240 mm sq
and oddly enough thats a bit more than 3%.
Vous ete un Turque Sauvage, pas de ciggies pour toi!

---

John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.



Edited 1 time(s). Last edit at 07/26/2006 12:31AM by john vanlandingham.

nick the brit Wrote:
-------------------------------------------------------
> > >
> > A little harsh as in the dude personally
> didnt
> > like the engaugement or that it was too
> difficult
> > to drive?
>
>
> The impression I got was that it was a bit too
> much on or off, so yes the engagement. That would
> also make it a bitch to drive on the street too.
> And since a harsh engagement bet stress the weak
> ol' Subaru trans I went with the full ring. Might
> not make much of a difference since I got a
> straight cut dogbox anyway, so will not use the
> clutch as often - once I learn how to do it
> anyhoo.
>
Dude the puck stuff I have used and supplied for a million years is hardly worse than the feather light non feel pedals most Japonause voitures come with, hardly "hard".

All things like pressure plate, being equal AP Racing says you get about 30% more torque capacity.

So cars with really horrible junk release mechanisms like pre 71 Beetles and my old Saab V4, they chatter till your teeth fall out, but thats a release brg with no guide sleeve.
>
>
>
> Nick Taylor.

---

John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.

Where is it written that I lost my Comparing Apples To Oranges privilege ??

I didn't get the memo.

---

Cheers
M.Samli
Phoenix AZ
Gaylant VR4
EVO III GSR (Stolen)


Rallies are no place for traitors