vedas

figuring from my last post that I do need a new clutch...

I have a 87 944 N/A that currently has a normal rubber donut type clutch...

I called a few porsche mechanics in the area to talk to them about the replacements and I was told by one that I should not use anything other than the OEM parts that porsche uses, IE: no turbo cup or spring-type clutch replacement.

Can anybody enlighten me as to what would be the most appropriate thing to do? I want to replace my disc with a more robust and better performing part, but would it bring concequences that this guy is telling me.

tia.
-matt.

Danno

"more robust and better performing part, but would it bring concequences that this guy is telling me."

Ah... he's just a ****** and hasn't tried anything else, and is scared of experimenting. I say go for a Tilton 4-plate 7-1/4" carbon/carbon clutch and you'll never have to worry about it again! <img src="graemlins/wave.gif" border="0" alt="[byebye]" /> <img src="graemlins/beerchug.gif" border="0" alt="[cheers]" />

Geo

[quote]Originally posted by Danno:
<strong>Ah... he's just a ****** and hasn't tried anything else, and is scared of experimenting. I say go for a Tilton 4-plate 7-1/4" carbon/carbon clutch and you'll never have to worry about it again! <img src="graemlins/wave.gif" border="0" alt="[byebye]" /> <img src="graemlins/beerchug.gif" border="0" alt="[cheers]" /> </strong><hr></blockquote>

Heh.

Isn't the ring gear attached to the PP (I don't know, but photos I've seen seem to indicate this).

The reason I'm asking is I can buy an AP Racing clutch disc and PP for a whole lot less than a Sachs, but it appears I cannot use it because of the ring gear issue.

You see, the flywheel in ITS must remain stock, but the clutch disc and PP are open. I'd be perfectly happy to figure out how to adapt the AP PP.

Danno

I was only joking about that I guess you can get a new PP or flywheel with 130 or 132 teeth as needed?

ClassJ

When mine went I thought about using a centerforce clutch but decided against it. I had problems with one I installed in another car years ago. I found that it wasent that great and didnet grab any better than the one I replaced with it.

I ended up putting in the sachs power clutch. It is an improvement in that you dont have to worry about the rubber center falling apart. It also grips a little better as well. But it is not a major improvement.

When I wanted to put it in a couple people told me that it will make the car vibrate and be noisy etc etc.

BS. IMHO the car acted just as quiet and smooth without the rubber hub.

Olli Snellman

I suppose that rubber-grab is not even available anylonger.Sachs changed the design and they use springs nowadays.

Olli
'88 951

Paul C 944

I was told they only make springs centers now.Some might have new old stock rubber centers.I recently replaced mine with spring center and can not feel the difference,no vibration or noise! <img src="graemlins/beerchug.gif" border="0" alt="[cheers]" />

Z-man

From an autocrosser's perspective:
If you change your clutch to anything other than the stock rubber centered clutch hub, you get bumped out of stock classes and into improved or modified, depending on your region (SCCA or PCA) and other modifications.

But: if you do replace your clutch with just the rubber centered donut (Homer Simpson voice: Mmmmm...donut....) you should be good for at least 100k miles. Plus the rubber centered ones transfer less clutch vibrations through the car than the spring centered ones.

Just my $0.42,
-Z.

Ken

[quote] From an autocrosser's perspective:
If you change your clutch to anything other than the stock rubber centered clutch hub, you get bumped out of stock classes and into improved or modified, depending on your region (SCCA or PCA) and other modifications. <hr></blockquote>

Z-man, I was just wondering where you learned this. I just checked the NNJ-PCA website and it doesn't specifically mention the clutch. It would make sense that it would bump you up, I'm just curious. Thanks.

Geo

[quote]Originally posted by Danno:
<strong>I was only joking about that I guess you can get a new PP or flywheel with 130 or 132 teeth as needed?</strong><hr></blockquote>

Danno, I realize you were joking, but I'm not.

My question still stands. Is the ring gear attached to the PP? If not, I may see if it's possible to install the AP Racing clutch on my car.

PeteL

Geo
The starter ring is indeed on the PP.

Geo

[quote]Originally posted by PeteL:
<strong>Geo
The starter ring is indeed on the PP.</strong><hr></blockquote>

Thanks Pete.

Bummer.

The new AP Racing clutch starts at $348!

Danno

And you only have to replace the clutch packs when they wear out, around $100? Only thing I've noticed is the splines those mate to are simply huge compared to our cars... <img src="confused.gif" border="0">