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I ran my car in an event today. The first with my R33 GTR.

The car seemed to have a bit of understeer yet on one corner oversteer.

Can someone advise what would be the next step to make the car handle better?

First thing would be tyres as you can hear tyre squeel from the attached video (no one else's tyres seemed to squeel like mine so maybe they're a bit hard)

The car currently has

Tien flex coilovers with incar adjustment

LMGT1 18x10.5" wheels fitted with 265.35.ZR18 Continental Contactsport2 tyres

I only had 4 runs so purposely left the shocks on their softest setting while i got used to the car.

(maybe i should have stiffened up the front)

http://s88.photobucket.com/albums/k199/Aussie109/?action=view&current=MVI_1718.mp4

Any advice most welcome

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Ad as much castor as you can with either you stock arms or aftermarket, that will help, maybe try swaybars and a camber kit on the front.

Gtr's will always understeer especially corner entry no matter what you do, just depends on how hard you push it into a corner.

I had this same issue on my gtst, but I found after upgrading to whiteline sway bars and a new front strut brace at the next track day I had virtually no understeer and a tiny amount of nice controllable oversteer. Definitely worth upgrading, very cheap and make a heap of difference :)

Get a wheel alignment first and see where all the geometry is. Get all bushes and ball joints inspected to see if they are all good. That is a good start.

+1

Start from the basic and work on it from there. You might have your questions answered as to "why" with a simple run up.

The only issue with alignments, try find somewhere decent. Often a lot of machines are not "true" as they are never checked/serviced properly. I've had varying readings from 2 places on the same day as an example (which is correct? hard to say). So a motorsport oriented place is where i would start and not somewhere like a bob jane

  • 2 weeks later...

Having gone the whole hog on my suspension, looking back my assessment would be that the best value for money to improve handling would be tyre pressures, bushes and camber adjustment (in that order). The other bits definitely make a difference, but cost to improvement ratio starts going up exponentially.

Couple of good (and bad) motorsport oriented places in WA I've used. PM for details, if you want.

Cheers

Jack

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