996 Previous model naturally aspirated Porsche 911 community. Discuss C2, C2s, C4, C4s, Targa and Cabriolets.

PSS9 Spring Pre-load question

Thread Tools
 
Rate Thread
 
Old Aug 23, 2010 | 04:25 PM
  #1  
02C4S's Avatar
Thread Starter
|
Registered User
Joined: Mar 2010
Posts: 43
From: orange county, ca
Rep Power: 18
02C4S is infamous around these parts
PSS9 Spring Pre-load question

I was under my car over the weekend looking at adjusting the damping on my shocks and saw this. The car was corner weighted at GMG by the previous owner according to the receipts, but I have to say that if the helper spring is totally compressed I wonder why it would be included which makes me think this is not setup properly. Any thoughts, see attached pic.
 
Attached Images  
Old Aug 23, 2010 | 06:00 PM
  #2  
Dscott's Avatar
Registered User
Joined: Aug 2006
Posts: 95
From: Oklahoma
Rep Power: 23
Dscott is infamous around these parts
This is normal and correct. The helper spring function is simply to keep all the parts together when the suspension is unloaded; like when you jack up one corner of the car. But as long as the car is setting on its suspension these helper springs will be fully compressed. Properly sized helper springs (in relation to the main spring, load, and travel) in this series configuration will have zero impact on the resulting spring rate.
 
Old Aug 23, 2010 | 07:52 PM
  #3  
02C4S's Avatar
Thread Starter
|
Registered User
Joined: Mar 2010
Posts: 43
From: orange county, ca
Rep Power: 18
02C4S is infamous around these parts
This picture was taken when the left rear was jacked up and the tire was removed. I guess if the helper spring is compressed at ride height, then it shouldn't matter. Thanks for the reply.
 
Old Aug 23, 2010 | 08:32 PM
  #4  
alpine003's Avatar
Registered User
Joined: Mar 2010
Posts: 2,004
From: Chicago
Rep Power: 122
alpine003 has a reputation beyond reputealpine003 has a reputation beyond reputealpine003 has a reputation beyond reputealpine003 has a reputation beyond reputealpine003 has a reputation beyond reputealpine003 has a reputation beyond reputealpine003 has a reputation beyond reputealpine003 has a reputation beyond reputealpine003 has a reputation beyond reputealpine003 has a reputation beyond reputealpine003 has a reputation beyond repute
This is totally normal as you'll want some amount of preload on a proper setup. If you didn't have the helper springs compressed, then I'd start to worry...
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
993 Guy
Automobiles For Sale
9
Sep 4, 2015 07:48 PM
MadWhip
996 Turbo / GT2
52
Sep 3, 2015 02:04 PM
orbelo
996 Turbo / GT2
30
Aug 30, 2015 12:26 PM
ECS Tuning - VW
VW Vendor Classifieds
0
Aug 26, 2015 12:33 PM
ECS Tuning - VW
VW Vendor Classifieds
0
Aug 25, 2015 11:53 AM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -6. The time now is 09:24 PM.