Whiteline

[FastScooby]

... steering rack bushes and subframe bolts have any benefits to the handling along with the other whiteline goodies in the sig below. I know these are not expensive additional items but will they make the difference

[dougster]

What about bumpsteer modification?

[ozzy]

... steering rack bushes and subframe bolts have any benefits to the handling along with the other whiteline goodies in the sig below. I know these are not expensive additional items but will they make the difference

As Dougster says Bumpsteer would make a more noticeable difference than the bushes.  I'd recommend top mounts if you don't have them already and a good geometry setup (more camber seems to provide good results on the Impreza).

Speak to Job Gevers in Dunfermline as he has the Whiteline UK franchise IIRC.

[frank c]

What benefits do you get with the Bumpsteer modification?????????

 

Frank.

[dougster]

Bump steer is the tendency for a tyre hitting a bump to momentarily change its toe-in setting, which causes the car to feel like someone turned the steering wheel a bit. This happens due to the tyres’ suspension going up and down over the bump. The steering arm is attached to the body of the car at one end, and the suspension at the other end. So it travels in an arc.  When a rod with one anchored end travels in an arc, the effective length of the rod changes. This is what pulls on the wheel and makes it feel as though someone besides the driver is steering the thing.

The 'Bumpsteer' modification effectively stops this from happening by adding shims to the steering rack, lessening the effect on the geometry.

Falkland Performance in Glenrothes did mine.

[frank c]

Thanks Dougster..

Well explained..

Frank.