Sway Bars

[Touge Kyousou]

wow... =/

Too hard to give exact info on sussy setup over the intewebz as so much is personal preference.

If it was me, i'd do both swaybars. If you do the front only, like mentioned it will cause the front to understeer upon turn in/mid corner but however you will be able to put more power down after midcorner/exit if you drive it as the inside front wheel will lift, causing your car's weight to then be placed on 3 wheels instead of 4 meaning more pressure/weight on the driving wheels at the rear (for the gt-t).

Having a super stiff front bar only will also throw things off balance and increase road harshness. You're kidding yourself if you think swaybars don't increase road harshness as any independent bump your car goes over, the swaybar will link both sides of the car's suspension (in your case, the coilovers) to that single bump reducing it's ability to absorb/control that shock/bump.

Ideally for a road going car that see's some track work, you won't use super stiff coilover/spring shock combo but something suited to aussie roads and tracks (which aren't super smooth anyways from alot of reports) and then use swaybars to control that body roll and weight transfer. A race car will be a different story as alot of them have more than sufficient spring resistance to counter body roll, they are generally stripped so there's not much weight and they are setup quite low and have modified lower roll centre/balance.

By running a softer/appropriate spring shock/coilover, you will maximise tire contact over bumps/undulations meaning in general more traction/acceleration while the swaybars will control body roll. Depending on your own driving style/environment, a little body roll is good too. However bear in mind too soft a spring/coilover will have you pitching like mad under heavy brake/power down once again affecting weight transfer.

Sussy setup is such a black art at times, and unless you have the money and time to try every possible combo you want, you really need to research and make your own decision or goto a reputable sussy setup shop and liase with them.

I am in no means claiming to be a suspension engineer/expert, but am simply sharing my thoughts on how my cars have reacted to various setups/mods (my preference for settings is touge friendly first, then street then track).

Btw, i've seen reports of people upgrading swaybars f/r and not helping track times, obviously you need to drive the car too. And you also need to have tires matched to your setup and driving style/needs.

+1 on Sydneykids posts, i've only glanced over a couple but they read solid.

[GUN_METAL_GTR32]

i only changed the front swaybar on mine. i got the thickest adjustable one whiteline had (28mm i think from memory) car was completely different afterwards drove like a fkn go kart.

[bubba]

I would upgrade both swaybars but here is my general rule of thumb that I have discovered coming from RWD Nissans to 4WD Nissans..

RWD: Front swaybar is bigger than the rear. Bigger/stronger/thicker on front will induce understeer, bigger stronger/thicker on rear will induce oversteer.

4WD: Front swaybar is small than the rear. I see this as being to reduce some of the push or understeer that having the front wheels driven gives. The thicker rear sway bar makes the car more taily and helps it turn in better.

* I could be wrong, but these are the assumptions I have reached thus far.

IMO, get adjustable all round then spend some time on the skid pan figuring out the settings to suit your car and driving style.

On my 32 I run the biggest whiteline swaybars I could get, front and back both set on their hardest settings.