Z51 shocks vrs. stock
Le Mans Master
Joined: Dec 2001
Posts: 5,706
Likes: 552
From: St. Peters MO
C7 of Year Finalist (stock) 2019
2018 C7 of Year Finalist
Re: Z51 shocks vrs. stock (WikdC5)
The Z51 suspension uses a slightly stiffer shock due to revised valving of the standard FE3 shock. Springs are stiffer accounting for most of the increased harshness. Front and rear stabilizer bars are larger for less body roll.
Le Mans Master
Joined: Oct 2000
Posts: 6,507
Likes: 723
From: Sausalito CA
Re: Z51 shocks vrs. stock (WikdC5)
Hi,
1) The Z51 transverse springs are definitely stiffer.
2) I believe the order of stiffness (which I will define as compression dampening/ resistance):
a) FE1 (base)
b) Bilstein Heavy Duty
c) FE4 Sport Mode
d) Z51
e) Bilstein Sport
f) post 2002 Z06
g) pre 2002 Z06
h) GM's T-1 (Sachs)
Then there are Hal Adjustable 10 way and Koni adjustable 2 way and Penske infinite adjustments.
The Hal look cool - probably perfect for sreeters who drag race. Koni - may be best autocross. Penske - I want them but not at $500 a piece plus.
If I have some errors, I hope one of our co-members can update what I thought was a summary.
1) The Z51 transverse springs are definitely stiffer.
2) I believe the order of stiffness (which I will define as compression dampening/ resistance):
a) FE1 (base)
b) Bilstein Heavy Duty
c) FE4 Sport Mode
d) Z51
e) Bilstein Sport
f) post 2002 Z06
g) pre 2002 Z06
h) GM's T-1 (Sachs)
Then there are Hal Adjustable 10 way and Koni adjustable 2 way and Penske infinite adjustments.
The Hal look cool - probably perfect for sreeters who drag race. Koni - may be best autocross. Penske - I want them but not at $500 a piece plus.
If I have some errors, I hope one of our co-members can update what I thought was a summary.
