Thread: JRZ RS1 shocks.
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      01-08-2012, 03:29 PM   #17
Brigadier General

Drives: 2008 E90 M3, 991 C4S, 997 GT3
Join Date: Feb 2009
Location: Toronto, ON

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Originally Posted by JAJ View Post
Ride comfort is a function of the damper curve, and the straighter it is, the harsher it is. That's why AST is making so much fuss about their hyper-digressive valving. That sharp bend in the curve delivers good motion control at the track and a comfortable ride on the drive home. JRZ, Penske, Koni, Bilstein, Sachs and so on can all deliver something similar, but it's a racing shock feature that most racers don't care about unless they're doing 12 and 24 hour endurance events. Most street shocks can't afford the technology to do this and still stay at the price points they're aimed at.
Are the AST shocks digressive on both rebound and compression? I read somewhere on the Internet that the JRZ RS1 is digressive on compression and linear on rebound. I'll try again to find the source.

Here is where I read it.

2008 AW/FR E90 M3-SOLD
2013 991 C4S-SOLD
2010 GT3

Last edited by STALKER; 01-08-2012 at 04:21 PM.