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-   -   Cayman S (987.1) HPDE Season Prep (https://dorkiphus.net/porsche/showthread.php?t=33960)

987kmns 02-11-2015 12:06 AM

Quick update tonight. The shocks came back from Olsen Motorsports after the rebuild, so I went ahead and assembled them.

Parts cleaned and ready to go.

http://i983.photobucket.com/albums/a...pstko5hiuf.jpg

All done.

http://i983.photobucket.com/albums/a...pstqptnzl7.jpg

987kmns 02-15-2015 03:48 AM

Some new OE rear thrust arms showed up in the mail, so with that, it was time to get the suspension back together.

http://i983.photobucket.com/albums/a...psc4nz9sx6.jpg

Last step before installing the shocks was to set the nitrogen pressure. Easy now that I have the tools for it.

http://i983.photobucket.com/albums/a...psv0pe8cut.jpg

I did the front first since it was a little simpler. Here is the right front all done and waiting for brakes.

http://i983.photobucket.com/albums/a...psc2okprpf.jpg

Then it was time to move to the rear where all the hardware was waiting patiently to go back on the car.

http://i983.photobucket.com/albums/a...pse6pqfisc.jpg

Hard to see in this photo, but the thrust arm has been replaced.

http://i983.photobucket.com/albums/a...ps66ewbjch.jpg

And back together.

http://i983.photobucket.com/albums/a...ps52pvcm3l.jpg

Rob - this pic shows the setup at the chassis side of the thrust arm. I don't think Powerflex will make a bushing for here.

http://i983.photobucket.com/albums/a...psrvbbzgci.jpg

TomChan 02-17-2015 09:00 AM

Quote:

Originally Posted by 987kmns (Post 509725)
Some new OE rear thrust arms showed up in the mail, so with that, it was time to get the suspension back together.

Glad to see you got new thrust arms. The 987s have MacPherson Strut rear suspension which is harder on those arms than the multi-link rear on the 996/997s. On top of that the 987 arms are much longer which put more leverage force on the joint. Its hard to check for play on those joints so we just replace them after so many hours of track use.

Rob VN 02-17-2015 01:05 PM

Mihnea,
Roger those thrust arm bushings seem to have some secret sauce applied to their design. Stock is probably the way to go.

Rob

feedftr 02-18-2015 12:49 PM

How many events did you have on your Girodisc rotors. I'm contemplating them for my Boxster S. The stock type rotors crack very quickly, and my pedal starts getting soft halfway through a session. I've been running PFC 08s on all 4 corners. Did you notice any improvement with this setup.

Tom

987kmns 02-18-2015 12:59 PM

I put a whole season on these rotors (12 events), but I got them used and the previous owner also used them for a few events and some street driving. I would say they last a lot better than stock. You also have the option of buying standard sized Sebro slotted rotors instead of the original drilled rotors. It is a much much cheaper alternative. Prices should be about $300 per axle. You only need the fronts as even the drilled rears last a decently long time. If you do go to Girodisc you need all 4 to keep brake bias the same as before.

Yes there is an improvement with Girodisc rotors over stock sized rotors because of the large diameter (more torque) and larger size (better heat dissipation).

PFC 08s all around are common. The soft pedal after 1/2 session is not ok. You may have air in the system. I also have the GT3 MC, which helps. Even with stock rotors I never got a soft pedal with proper bleeding.

vranko 02-18-2015 04:25 PM

Another option is the PFC floating rotors. I've been very pleased with them and the longevity of the rotors (I've been running PFC 08 compound).

987kmns 02-18-2015 05:23 PM

Yep those too. I believe those are fronts only, right?

vranko 02-18-2015 07:53 PM

Quote:

Originally Posted by 987kmns (Post 510080)
Yep those too. I believe those are fronts only, right?

Correct. I don't believe they produce rears yet.

987kmns 02-19-2015 01:18 AM

Oh and another option for fronts: Racing Brake rotors. Link here.


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