Judder Around Corners

[UWAM]

Hi all

R34GTT stock standard

Lately I've been experiencing a vibration/judder through the steering wheel when going around a corner and applying power. Doesn't matter how fast I turn in, only happens when I apply decent power while still having some steering lock on. Only noticed it turning right, though that could just be thats the main situation it happens (roundabouts etc). It can be pretty significant.

I'm not sure whether or not it's just the wheels skipping from understeer or something else (worse). The car doesn't understeer significantly.

Now, I haven't changed anything on the suspension or wheels, don't remember hitting anything hard, no noise/knocking at full lock at any speed, tyre pressures are all even, 35 psi.

Any ideas/thoughts/suggestions would be appreciated. Cheers

[payback21]

Egg on one of the tyres??? Im only guessing.

[GTR-N1]

Do you hear any clicking?

Have you tried to do tight right hand circles in a carpark?

[UWAM]

No clicking, and yes I've done turns on full lock in both directions; haven't noticed anything unusual.

[GTR-N1]

OK, if not CV, then a thorough inspection of ball joints, bushes (especially on LHS)?

[UWAM]

Took the wheels off today to have a look, couldn't see anything unusual, though I'm no expert in the area. Should i be taking it to someone to get checked out properly, or just leave it, see if it gets any worse?

[GTR-N1]

Suspension checks are pretty cheap.

They'll warn you about anything major and minor.

Pick their brains and rectify only what's necessary (according to budget) and tuck the rest away in a 'to do' list for later.

[UWAM]

Update on this: I realised the traction control is kicking in a bit earlier than it should, round a right hand corner, as well as the vibration. So I checked out the right rear setup, and the shock is leaking. It has significantly less damping on that corner than the other side.

So the question is, would a lack of damping on one wheel cause a vibration when that wheel is unloaded? I'm thinking yes.

Cheers

[tiberis]

yeah, it would.

had a very similar problem in my R33, would give vibrations/ judder when turning left. turned out rear left shock was dying/ dead.

(as the shock is dead, you just have spring so with the less weight on the spring it becomes more 'bouncy'. scared the crap out of be just before i fixed it because it was my rear shock, went over some lumpy bit on the road and the diff kicked in and jumped the rear sideways a bit :S )

replaced shocks and it's been all good

[blind_elk]

One way to test it is to swap shocks L<->R, see if the situation changes.

...as the shock is dead, you just have spring so with the less weight on the spring it becomes more 'bouncy'.

There's still the same weight on the spring. The reason the car becomes bouncy is that the shock absorber is unable to do its job, namely to control the motion of the spring.

[UWAM]

One way to test it is to swap shocks L<->R, see if the situation changes.

There's still the same weight on the spring. The reason the car becomes bouncy is that the shock absorber is unable to do its job, namely to control the motion of the spring.

I think he meant less weight as the car goes around a corner.

Cheers for the replies. So is it possible to get the stock shockies rebuilt? Can't really afford a full set of coilovers at the moment, though if all else fails I might have to.

[tiberis]

yeah, i meant as the car body moves as going round the corner that the spring will 'see' less weight. sorry if i didn't make that clear the first time.

i imagine rebuilds could be costly as well. when mine died i was able to find someone here on the forums selling a set of stock replacement springs and shocks for only $180. they aren't much of an improvement at all, but it's kept me on the road until i have more $$$.