Manufacturer & Specs of OEM Suspension?
Manufacturer & Specs of OEM Suspension?
03-10-2010 | 12:59 PM
#5
Drifting
Joined: Aug 2007
Posts: 3,007
Likes: 48
From: Alpharetta, GA
That's all the higher the spring rates are?! Can you explain Progressive?
Reason I ask is my car has KW V3 CoilOvers on it. The spring rates are 280 F 950 R. Although the adjustability of the compression and rebound are decent. The front springs felt way too soft in relation to the rear on the track.
Reason I ask is my car has KW V3 CoilOvers on it. The spring rates are 280 F 950 R. Although the adjustability of the compression and rebound are decent. The front springs felt way too soft in relation to the rear on the track.
03-10-2010 | 01:49 PM
#6
Nordschleife Master
Joined: Oct 2003
Posts: 5,225
Likes: 28
From: Tobacco Road, NC
Dave, it allows for a softer initial compression and then gradually gets stiffer when more compression is applied to the spring. My guess is PAG chose this for easier street drivability.
Damper (Bilstein)
Spring (H&R)
Rates (already listed but "slightly" incorrect
) 228F (Linear) 543R (Progressive)
Damper (Bilstein)
Spring (H&R)
Rates (already listed but "slightly" incorrect
) 228F (Linear) 543R (Progressive)
03-10-2010 | 02:25 PM
#7
Race Car
Joined: Jun 2005
Posts: 4,511
Likes: 48
From: Columbus OH
Dave, it allows for a softer initial compression and then gradually gets stiffer when more compression is applied to the spring. My guess is PAG chose this for easier street drivability.
Damper (Bilstein)
Spring (H&R)
Rates (already listed but "slightly" incorrect ) 228F (Linear) 543R (Progressive)
Damper (Bilstein)
Spring (H&R)
Rates (already listed but "slightly" incorrect
) 228F (Linear) 543R (Progressive)awww...bustin my *****! Sorry for the bad info
Yes the fronts are soft....rears are soft too. My old C2 had coilovers with 450/900 and it needed more spring rate but was a good compromise for the street / track use.
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03-10-2010 | 02:30 PM
#8
Thread Starter
Drifting
Joined: Sep 2008
Posts: 3,049
Likes: 0
From: Cary NC
Great info guys, thanks.
I am surprised the spring rates are so low, at least they sound low to me knowing what some aftermarket spring rates are for off-the-shelf coil over systems; of course the dampers are I think what makes the ride feel so firm.
I am surprised the spring rates are so low, at least they sound low to me knowing what some aftermarket spring rates are for off-the-shelf coil over systems; of course the dampers are I think what makes the ride feel so firm.
03-10-2010 | 02:58 PM
#9
Nordschleife Master
Joined: Oct 2003
Posts: 5,225
Likes: 28
From: Tobacco Road, NC
I ran 900/1100 and found it to be pure euphoria
They feel good since Bilstein tuned them to match those springs. The "cheaper" way of upgraded the setup is to pick a new spring rate and then send your dampers to bilstein for a revalve to match. About $80 a damper for that service IIRC.
Last edited by LVDell; 03-10-2010 at 03:21 PM.
03-10-2010 | 03:41 PM
#11
Nordschleife Master
Joined: Jan 2004
Posts: 5,165
Likes: 2
From: SEATTLE
That's all the higher the spring rates are?! Can you explain Progressive?
Reason I ask is my car has KW V3 CoilOvers on it. The spring rates are 280 F 950 R. Although the adjustability of the compression and rebound are decent. The front springs felt way too soft in relation to the rear on the track.
Reason I ask is my car has KW V3 CoilOvers on it. The spring rates are 280 F 950 R. Although the adjustability of the compression and rebound are decent. The front springs felt way too soft in relation to the rear on the track.
03-10-2010 | 05:35 PM
#12
Addict
Rennlist Member
Rennlist Member
Joined: Jun 2001
Posts: 2,593
Likes: 7
From: Naples, Florida
Your onto something with the dampers... I've been told by others smarter than I that they are over damped from the factory to give it a tighter ride. A fresh set of dampers (or full coil overs) were next on my list till I decided to sell.