DrJupeman

How many different pressure plates are there for 964 series G50 variants? Anyone know?

If you know about the "special" 964s like turbos, RSs, RSRs, and Cups that would be very interesting to me.

Thanks!

JasonAndreas

Here the list for various model Porsches

964-116-027-90 968 (green)
959-116-023-05 959
964-116-028-03 993 (no mark)
964-116-028-53 993TT & 964 3.6T (red) & GT3 mk2
964-116-028-91 964 3.3T
964-116-028-90 964RS & 964(blue)
996-116-027-51 996 GT3 mk1 & 996TT
996-116-027-02 996
996-116-027-05 996 (M96.03)
997-116-027-12 997 (M97.01)
997-116-027-00 997 (M96.05)


Starting with MY92 the regular 964 was delivered with the same pressure plate as the 964RS.

DrJupeman

OK, awesome. What's the functional difference between a 964-116-028-90 and a 964-116-028-03 (993)? My mechanic says I need a -03, but I have a 964 Cup, so I'd assume a -90 given your information. To make things even more confusing, I think I saw a red mark on mine...

JasonAndreas

The 993 PP has a higher clamping force than the 964 version, other than that they are the same (style - G MFZ 240). The spec on the 964 PP is 10600-11500 Newtons, not sure on the exact numbers for the 993. I tried getting the numbers from Sachs NA but did not succeed, maybe you'll have better luck?

Your 964 Cup has nearly the same HP/TQ as the 993 so I would follow your mechanics recommendation. Someone mentioned that PMNA is now using AP Racing pressure plates for the 996/997 Cups so it might be worth looking into those?

The pressure plate for the TT (red mark) seems to be the limit for what most people can handle driving around without boosted hydraulics?

DrJupeman

Awesome help, thanks very much!

Bill Verburg

Suposedly all the RS parts are marked w/ a green dot and have .80 or higher as the last 2 digits

Hawaii964

I ordered a Carrera Cup Flywheel/Clutch Conversion
I received a Pressure Plate part number 964-116-028-53
Does this fit a 1990 Carrera C2 Non turbo?
is it basically the same as part number 964-116-028-90?
Thank you for the help.