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996 Cup JRZ 3-way Shocks a springs
02-22-2017, 03:37 AM
#1
Rennlist Member
Thread Starter
996 Cup JRZ 3-way Shocks and Springs
Category: Accessories
Price (no $ sign please): $3100
Private or Vendor Listing: Private Listing
Location (Region): Midwestern
Item Condition: Used
Brand New 900#F/1000#R Eibach springs and tender springs. $600
Last edited by Slakker; 03-01-2017 at 02:36 PM.
03-01-2017, 11:18 AM
#2
Rennlist Member
Thread Starter
Motivated to sell. Make offer.
03-01-2017, 12:29 PM
#4
Rennlist Member
Thread Starter
Technically no although the Sp996 guys have been pretty loose since it's a small class. Will work for GTB1 or H-Class though. The rears require modification for use on 996 or GT3 unless setting to a very low (track only) ride height.
03-01-2017, 02:38 PM
#5
Rennlist Member
Thread Starter
FYI, these shocks run around $10k new.
03-02-2017, 10:32 AM
#7
Rennlist Member
Thread Starter
So it all comes down to ride height and geometry. The rear 996 Cup shocks are 1 3/4" shorter than c2/TT/GT3 rear shocks. To correct the height you can either spend $1000 to get longer pistons or have a 1" spacer custom manufactured. Here is a thread that goes over all of this:
https://rennlist.com/forums/porsche-...or-sale-2.html
BUT, the issue is actually with the front geometry, not the rear. The general consensus is that 1" of rake is the sweet spot for the 996. So if you set the rear to 4.5" (which you can with the Cup shocks) then the rear geometry is fine but the front at 3.5" will have bump steer due to the roll center. But a factor that an SP996 buddy brought up this weekend, is that the bump steer causes toe out! So for the rear, bump steer is bad, but a little bump steer on the front end can actually be a plus.
It's made me reconsider my approach to my setup and I may give these another try if they don't sell pretty quick. In which case I'll have a newly rebuilt set of Motons for sale instead.
https://rennlist.com/forums/porsche-...or-sale-2.html
BUT, the issue is actually with the front geometry, not the rear. The general consensus is that 1" of rake is the sweet spot for the 996. So if you set the rear to 4.5" (which you can with the Cup shocks) then the rear geometry is fine but the front at 3.5" will have bump steer due to the roll center. But a factor that an SP996 buddy brought up this weekend, is that the bump steer causes toe out! So for the rear, bump steer is bad, but a little bump steer on the front end can actually be a plus.
It's made me reconsider my approach to my setup and I may give these another try if they don't sell pretty quick. In which case I'll have a newly rebuilt set of Motons for sale instead.
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03-03-2017, 05:26 PM
#9
Rennlist Member
Thread Starter
Originally Posted by 944CS
on man, JRZ 3 ways, freshly rebuilt for $3100? Somebody buy these, lower the spring rates, and put them on your street car! Think of it like the ultimate M030 setup.
The thing I love most about these cars is that every project is a learning experience.
