What exactly does "Z51" mean?
Le Mans Master
Joined: Sep 2004
Posts: 5,707
Likes: 4
From: Los Angeles
Z51 is the option code for the high performance suspension upgrade. This included stiffer shocks, springs and larger swaybars. This package was an option on coupes and convertables. All FRC's came standard with this option along with the MN6 tranny. The FRC was originally introduced as a lower cost entry marketed for "sport" as an autocross/HPDE car stripped of a certain number of luxury options to reduce weight. Sales were very poor until they turned it into the Z06 in '01.
Le Mans Master
Joined: Sep 2004
Posts: 5,707
Likes: 4
From: Los Angeles
Melting Slicks
Joined: Nov 2005
Posts: 2,071
Likes: 0
From: clackamas oregon
Z06. the sways are different also from what i know. but Z51 are still bigger than base. the shocks are different also i think
Last edited by rgtkst; Feb 17, 2007 at 02:00 PM.
Melting Slicks
Joined: Nov 2005
Posts: 2,071
Likes: 0
From: clackamas oregon
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Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
I've made all the changes to my FRC and really like it. Oh BTW, lose the RFs too.
Pro
Joined: Sep 2006
Posts: 731
Likes: 9
From: Ivins, Utah
Swaybars
23mm, front; 19.1mm, rear --- FE1/Base ( my old bars )
25.4mm, front; 21.7mm, rear --- FE3/Z51 97-99 (your bars)
28.6mm, front; 23.6mm, rear --- FE3/Z51 00-04
** 30.0mm, front; 23.6mm, rear --- FE4/Z06 ** Go with this one
31.75mm, front; 25.4mm, rear --- Hotchkis
38.4mm, front; 27.5mm, rear --- GM T1
Just this weekend I upgraded to the Z06 sway bars, front and rear.
If you have an older '97-'99 C5 with plastic swaybar endlinks, you will need to go to the GM aluminum endlinks for the larger bars, as the old-style plastic ones can snap with the force from the stronger bars.
Go with Z06 bars, anything smaller than the Z06 swaybars is a waste of time as an upgrade.
23mm, front; 19.1mm, rear --- FE1/Base ( my old bars )
25.4mm, front; 21.7mm, rear --- FE3/Z51 97-99 (your bars)
28.6mm, front; 23.6mm, rear --- FE3/Z51 00-04
** 30.0mm, front; 23.6mm, rear --- FE4/Z06 ** Go with this one
31.75mm, front; 25.4mm, rear --- Hotchkis
38.4mm, front; 27.5mm, rear --- GM T1
Just this weekend I upgraded to the Z06 sway bars, front and rear.
If you have an older '97-'99 C5 with plastic swaybar endlinks, you will need to go to the GM aluminum endlinks for the larger bars, as the old-style plastic ones can snap with the force from the stronger bars.
Go with Z06 bars, anything smaller than the Z06 swaybars is a waste of time as an upgrade.
Le Mans Master
Joined: Sep 2004
Posts: 5,707
Likes: 4
From: Los Angeles
The difference between the T1's and the stock Z06 ones is HUGE by looking at them. I just personally don't know how much better or faster they will make you on the track. So far, nobody here has said what they want them for, so we have no basis for analysis.
Melting Slicks
Joined: Feb 2006
Posts: 2,092
Likes: 5
From: Fayetteville Arkansas
2004 Z06 package
I just upgraded to this yesterday...not a hard thing to install at all! Four hours with the sway bars bushings, sway bar end links and also new upgraded tie rod end links. I'm very happy with the tighter feel of the car and the feel in some turns on the way home...
HTH,
Sully
HTH,
Sully
Safety Car
Joined: Jul 2001
Posts: 4,661
Likes: 67
From: Ocean Springs MS
Racer
Joined: May 2006
Posts: 332
Likes: 0
From: Lexington Mass
! But its still expensive compared to Z06 bars. Where do you all get the endlinks and other hardware from?
Last edited by Deft; Feb 18, 2007 at 07:12 PM.
Team Owner
Joined: May 2001
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Le Mans Master
Joined: Aug 2001
Posts: 5,626
Likes: 1
From: Cinti,OH 2004 Z06
CI 4-5-6-7-8-9-10 Veteran
St. Jude Donor '07-'09
i just purchased the T1 bars...was ready to install them...when i was
told not to run them on the street... i was told that the car would push
badly...now i am stuck with the bars and out $849.00
i was told to keep my z06 bars
told not to run them on the street... i was told that the car would push
badly...now i am stuck with the bars and out $849.00
i was told to keep my z06 bars