Vibration under braking from 120kph

[michaeljquinn]

Just a question

Got a RS-FOUR (DAyz)

Std 16x225 wheels

If doing moderate braking from about 120kph, i get a vibration in the steering

wheel (not voilent, just a slight shudder). But there is no wheel balance problem

No pulsing in the brake pedal

Had runout on disks checked, seems within tolerance, but the disks have

a small hot-spot.

Wheels checked, are ok

I'll torque the wheel nuts tonight, whats a good setting for the Staj ??

And SK if you read this, can you tell me the part # for those bilsteins for the Staj ??

You also mentioned machining a groove in the struts to allow adjusting of the

ride height, can a semi competent suspension shop do this for me ??. Anyone

in Melb to recommend ??

thanks heaps everyone !!!

[Sydneykid]

Just a question

Got a RS-FOUR (DAyz)

Std 16x225 wheels

If doing moderate braking from about 120kph, i get a vibration in the steering

wheel (not voilent, just a slight shudder).  But there is no wheel balance problem

No pulsing in the brake pedal

Had runout on disks checked, seems within tolerance, but the disks have  

a small hot-spot.

Wheels checked, are ok

I'll torque the wheel nuts tonight, whats a good setting for the Staj ??

And SK if you read this, can you tell me the part # for those bilsteins for the Staj ??

You also mentioned machining a groove in the struts to allow adjusting of the  

ride height, can a semi competent suspension shop do this for me ??.  Anyone

in Melb to recommend ??

thanks heaps everyone !!!

Centreline (Chris) or Traction Tyres (Andrew) are the two suspension specialists in Melbourne I would recommend.

Any one with a decent sized lathe can cut the extra circlip grooves, it's not tricky.

Front dampers are the same as R33 GTR. Rear dampers are the same as R33 GTST.

I use 70 ftlbs for wheel nut torque.

Sounds like a warped disc to me. But, just in case, have you checked the out of round of the tyres? Plus worn radius rod bushes can cause it as well, have you checked them?

Hope that helps:cheers:

[ICE12]

Sounds like a warped disc to me too.

Some one has been doing some heavy braking in it, if not you someone previous.

Cheers ICE