VY SS Ute Road/ Track Car

[psi38l]

Hi Guys,

I have a VYII SS Ute that is mainly a road car but I use it at Wakefield Park, Hill Climbs and the Odd Dutton rally.

It has a lot of under steer that i would like to try and dial out of it. I'm guessing i need to change the rear sway bar?? Do you have anything available for Utes?

I don't know spring rates but it currently has front coil over?s with Bilstein inserts/king sprigs, and Bilstein rear shocks with king springs (it?s the old suspension out of the racing V8 Ute) the only other thing i have changed suspension wise is the radius rod bushes.

Any help would be much appreciated.

Cheers,

John

[Wojtek]

Hi John,
In simple terms, increasing rear roll resistance through an uprated rear swaybar will reduce understeer/induce oversteer. But, if your understeer is not caused by roll resistance imbalance but by something else, then this would only be a band-aid solution.

Some factors that may cause understeer are, especially on a modified car such as yours are, and can be broken down into two main categories:

Suspension hardware:
- incorrect front to rear spring ratio
- incorrect front to rear swaybar ratio
- insufficient front suspension bump travel

Suspension set-up:
- incorrect ride height rake, front too hight or too low
- inappropriate wheel alignment settings

You should address all above points to be able to work out the appropriate solution. Otherwise, you may find yourself running in circles.

I don't know much about your suspension, but we have set-up VX-VY ute with our Group'4 coil-overs (prototype), swaybars, alignment kits, etc... and we were very happy with the results.

Let me know if you have any questions at all.

Regareds,
Wojtek.

[psi38l]

Thanks Wojtek,

I will see if i can find the spring rates and check the bump travel and ride heights. i might come back and ask for some more advice.

Cheers,

John