Correct Understeer - R33 GTST

[SeriesIIGTST]

Hi all,

After recently doing a driver training in my car, I have discovered the aweful stock handling flaw in most whales called understeer. This was also emphasised by the instructor who's words stick clearly in my mind "TURN YOU UNDERSTEERING PIG!".

Well, I want to correct this situation. Saying that, it's a street car, I don't use it for the track but I may do an MC Motorsport type competition from time to time.

My question: What is the best way/what are my options, to fix this understeer? I'm not keen on changing tyres so i'm talking more suspension mods. Car is currently stock suspension wise.

Any help you could provide would be appreciated.

[GunMetalR33]

neg camber should help. You can get a camber kit from any good suspention place...

[(B1) MR_fanny]

some adj swaybars should help too........i noticed significant improvment in turn ins when fitted mine.

[blind_elk]

Pump the front tyres up, 2psi over the rears, so 36 front / 34 rear. Fit a HD bar on the back.

[ferni]

all these options listed here should help

softer swaybar settings in the front than the rear should also help

[Cubes]

So its running stock suspension at the moment?

[Duncan]

put decent tyres on the front....the r33 gtst is actually pretty well balanced on even tyres

[benm]

Yup start with the basics and get some good sticky rubber first of all.

[SeriesIIGTST]

Thanks for all the replies. For the driver training, i already had the fronts 2psi higher than the rears but I hate my current rubber so that will definitely be the first change.

Would I be worthwhile simply purchasing something like the Whiteline "Handling" Kit or should I just go to a local suspension shop and get them to supply and fit the bars and camber kit?

[(B1) MR_fanny]

the local susp shop would probably get the whiteline stuff anyways as theyre made specifically for skylines.

[Sydneykid]

The only thing I would add to what the guys have already said is add some positive caster, get some adjustable radius rod bushes (Whiteline have them). I would not suggest much negative camber for a mostly road car as it wears the tyres, around 0.5 to 1 degree negative is OK.

[MSPEC]

Pretty sure the only (well major) problem is your rubber, what are you using? I was using Falken’s and they cornered like crap, now I use Michelin SP Pilots and they stick very well. If anything I have over-steer with them

[Sydneykid]

It has been my experience that having the same tyres front and rear maintains the handling balance. So upgrading all four tyres will not improve the understeer, you may raise the limit, but eventually it will still display the same predispoition to understeer that it currently has. Much better to fix the problem (ie; adjust the balance) with suspension geometry correction.

[Duncan]

:werd: no point compromising your outright grip by mismatched tyres to fix a problem somewhere else

[SeriesIIGTST]

Thanks for all the feedback, really appreciate it. I definitely have a problem with my rubber as i hate my tyres and obviously that will help but like SK said, suspension geometry is my major area of weakness. I think i'll be looking more into those Whiteline "works" packages..

Cheers!

[Craved]

also where is it understeering? corner entry? mid corner?

if its corner entry perhaps checking the toe in on the front would help as well, bit of toe out will improve the turn in at corner entry!

[bjgtir]

you are far better fixing up the underlying handling problem before you improve tyre grip. Improving typre grip first will only hide the problem. Fixing the handling while still using the poor tyres is easier as the change should be more apparent and also should be obvious at lower (ie safer) speeds

brendan

[dangerous_daveo]

also where is it understeering? corner entry? mid corner?

if its corner entry perhaps checking the toe in on the front would help as well, bit of toe out will improve the turn in at corner entry!

Then it could wander a bit on the straight stuff.

Anyway, arent most cars designed with understeer to allow for the 'lowest common denominator' people???