I noticed in the DIY that Josh has a 350 Evo Sway bar on the rear. I am just wondering for someone who doesn't track yet, but may in the future how much of a difference is there between the Evo sway bar and the stock? Thank you in advance.
I don't have the 350evo sway, but I do have an Aussie brand that has a higher rate than stock (all aftermarket sways will have higher rates)
I have just installed them & I can tell you sways are the way to go (& not just for the track)
Crisper turn-in, much less body roll, car feels much more responsive round corners & allows you to be much more bold in the twisties!
Look at all the aftermarket sways & I know that the Hotchkis is good value!
You are on the right track with this mod. Best bang for your buck by far!!
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:
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
Thank you, I'll have to see if they make linear springs with a minimum amount of drop.
I dare say that the aussie car does indeed use a different suspension then usdm cars or they transposed the wrong data from another Nissan platform. Our spring rates are 5.6Kg/6.1Kg with wheel rates of 2.8Kg/2.2Kg
I've had the 350EVOs (fron t and rear) on my G with OEM wheels and tires for 10k miles and they improved balance considerably. Set at medium/medium the car is nearly neutral , no understeer or oversteer. Note th EVO rear bar is much "straigher than others. This makes them more effective with less overall stiffness reuired. Also the upgraded (non-poly) bushing work well ,responsive and no squeeks.
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