My clutch now slips from the PPC :(

[saabthraab]

I've had the PPC for a couple weeks at most, and at full throttle in 2nd and 3rd it slips pretty bad I've seen this as a common problem, has everyone just had to suck it up, and replace the clutch? is there a higher performance replacement? It's an '05 Arc, 5 speed MT. I hope it's not killer expensive...

[Vector-SS]

Originally Posted by saabthraab

I've had the PPC for a couple weeks at most, and at full throttle in 2nd and 3rd it slips pretty bad I've seen this as a common problem, has everyone just had to suck it up, and replace the clutch? is there a higher performance replacement? It's an '05 Arc, 5 speed MT. I hope it's not killer expensive...

There are a couple of threads concerning this issues. Some one actually suggested "dropping" your clutch to remove some "glaze" off the disc.

It somehow worked for me. I don't know if it was by coincidence though

[jlrdrony]

Von: jlrdrony
Gesendet: Donnerstag, 6. November 2008 19:45
An: Hammer Markus SCW DRP
Betreff: Re: AW: AW: SUBJECT: CLUTCH DIED - BURN

Dear Markus,
in order replying to your questions:
1.- You have never driven this car on a racetrack?
No, than I know.
But before to buy the car, it has been in the press Racc.... for test as you can see in this page:
racc test
and maybe is the root cause of problem.
2.- Do you have done any modifications with this car - higher torque???
No, no modification at all.
3.- Can you give me the original part no. of the flywheel, the disc and the cover?.
The genuine parts replaced are in the dealer workshop (Opel Iglesias, Zaragoza-Spain).
I already repaired my car and I can show you the GM references parts number:
opel astra tt 2.0 6speed manual
5616001 steering inertia.
664078 friction disk.
5666015 clutch plate
5679350 slave cylinder.

From the beginning, the clutch pedal was hard like the omega car and (after repairing) now the pedal clutch is very nice touch contact and smooth as a new one car.
I am agreed with your resolution about the problem.
Because, it looks like, that the facings of the disc worn down nearly to the rivet heads.
This should be the reason for slipping and overheating.
And also I have to mention, due to my car has been for test bench at Racc Press.

Thank you for your prompt attention.

My best regards,

for a slipping clutch, we have several things that could be the reason for it:

- Facings of the disc was contaminated with oil or grease
(Gearbox or engine sealing defective; Excessive grease on the gearbox input shaft
or pilot bearing; Hydraulic actuation leaks)
- Clutch cover assembly overheated
(Deficiencies in the release system / insufficient clutch play, stiffnes; Clamp load
insufficient; Gear engaged too high for drive-off; Normal wear in line with the conditions
of use; High drive-off frequency / incorrect driving technique; Clutch actuator mechanism stiff)

If you have further problems, you should check the adjacent components.
Have you received an information about the torque of your car???

Maybe you have to change the clutch components!

With kind regards

Markus Hammer
Techniker / Technician

ZF Sachs Race Engineering GmbH
Ernst-Sachs-Str. 62
97424 Schweinfurt / Germany
Tel: +49-(0)9721/98-5877
Fax: +49-(0)9721/98-920928
E-mail: mailto:markus.hammer@zf.com
Website: http://www.zfsachs.com
http://www.sachs-race-engineering.de


http://www.zf.com/media/media/docume...e/PCS_e_zf.pdf

http://www.zf.com/media/media/docume...ing/RCS_zf.pdf

saab clutch

[SoftTop]

Originally Posted by saabthraab

I've had the PPC for a couple weeks at most, and at full throttle in 2nd and 3rd it slips pretty bad I've seen this as a common problem, has everyone just had to suck it up, and replace the clutch? is there a higher performance replacement? It's an '05 Arc, 5 speed MT. I hope it's not killer expensive...

So, is there really that much of a diff. with the PPC? Do you feel you have more HP and torque or did you just wear the clutch out with too much spirited driving?

Dom

[ANTMAR]

Generally, a PPC tune will add 30hp which isn't a ton but 100 ft/lbs of torque which is substantial.

[saabthraab]

Originally Posted by SoftTop

So, is there really that much of a diff. with the PPC? Do you feel you have more HP and torque or did you just wear the clutch out with too much spirited driving?

Dom

It's VERY noticable it makes it into a new car. i think it's well worth the $700, I would have paid 700 bucks more for the car for a trim level that was more powerful. I'm 100% convinced the clutch slips now because of the added torque. btw i dont drive the car hard all the time, before or after the tune.

[saabthraab]

Originally Posted by Vector-SS

There are a couple of threads concerning this issues. Some one actually suggested "dropping" your clutch to remove some "glaze" off the disc.

It somehow worked for me. I don't know if it was by coincident though

what do i got to lose

[toplessFC3Sman]

well, the OP has an '05 Arc, which was made before the 2.8 came out, so i'm guessing he has the 2.0t (T?). With the BSR, the gains are definitely noticable on the 2.0T (i havent owned/driven a 2.0t), but they are not an additional 100 lb-ft; more like 50 lb-ft. Still not insubstantial, but not outrageous either.

[ctrlz]

OP has a 2005 Arc, which would have the 2.0T.
Here are the only dyno charts I've seen for this motor. The BSR claims are included for comparison.
http://www.saabcentral.com/forums/sh...ad.php?t=63093

I have had Stage 1 for three years. I expect my clutch to last as long as I own the car, which will probably be another 5 years or so. I have 59K miles now. A little more than half that is with the PPC Stage 1.

I don't see how we can discuss clutch wear for any reason without mentioning miles on the clutch. There is so much more that goes into this. E.g. a lot of people like to downshift to slow the car, which accelerates clutch wear. But it saves the brakes, so yee-ha! Because brake work is just so much harder and more expensive than poppin' in a silly lil' clutch