Whiteline (used to be Selby):
A post from the aussie forum. Peter from whiteline replied with this answer to one of my ques.
None of the links work but all the addresses are there:
Thank you for your interest in our Whiteline products.
Information on the Z33 Coupe swaybars follows:
BNF33Z has 2 hole adjustment. Increase approximately 10-40%
BNR30Z has 3 holes. Increase approximately 10-35-110%
I would like to point out that these "quantities" can be rather meaningless and should only be used as a guide unless you relate "them" to the spring rates and motion ratios of both the springs and bars - front and rear motion ratios are of cause different on this chassis. Further information on these topics can be found in our FAQ section - links are here:
http://www.whiteline.com.au/faqsprings.htm
http://www.whiteline.com.au/faqshocks01.htm
http://www.whiteline.com.au/faqelse01.htm#Motion ratio
http://www.whiteline.com.au/docs/bulletins/010barup.pdf
http://www.whiteline.com.au/docs/bulletins...d%20Swaybar.pdf
For your interest, please find some basic information on your chassis which may prove useful as a base start point when evaluating the market for this chassis:
350Z - OEM suspension (according to our measurements)
Springs; front 4 kg/mm, rear 7.3 kg/mm
Sway bars; front 34mm TUBE (solid equivalent ~ 31.5mm) rear 21mm TUBE (solid equivalent ~ 19mm)
Whiteline;springs; front 6.5 kg/mm rear 8 kg/mm swaybars; front 32mm SOLID rear 20mm SOLID
Our spring and swaybar rates have been carefully matched to the rate requirements of high performance street tyres and semi slicks and are suitable for an intensive track day whilst still providing a good ride on the street. It may also be important to remember the aim of this discussion on swaybars and spring rates and 'stuff', is to simply maximise "grip". How we achieve this is the subtle part
Michael, I will decline to publicly offer contact details of our customers as we must respect their privacy. I trust that if they are satisfied with their suspension setup they may not see a need to enter into a public debate on a forum, and to do so will be their choice. I trust you can appreciate our position in this regard. As a matter of interest, can you provide a link to your forum please.
I believe that you will be rather amazed at the difference these bars will make to the handling of your car

, and I trust the above is helpful in providing a base start point for your enquiries.
good luck with your project
You can purchase direct on line using the link below to our secure web store
Join us at
www.suspensionparts.info/
Regards
Peter Atkinson
[email protected]
Go Flat out with Whiteline Automotive
Group4 Coilovers
See what we have at
www.whiteline.com.au
It's easy, buy on line at
www.whiteline.com.au/store