Caster Advice

[Trentwoody]

Hi All,

I have new super pro bushes to have installed (SPF3223K) and was wondering with my wheel aligment settings should I be installing these for Caster increase or Caster Decrease to help lengthen the live of my tyres.

all help appreciated

Edited 25/03/15 09:24 AM by Trentwoody

[Ralph Wiggum]

Can't see which measurement is which in that pic. But I would suggest increase as it will help the car track straight. Caster doesn't have a massive effect on tyre wear (I'm assuming inside is scrubbing out) the main benefit is toe angle and camber won't change under braking so this will reduce the inner tyre wear.

[Trentwoody]

this pic might be better

[senna_T]

Do you have an FG or a BA/BF? The bushes you have are for FG but the printout says BA/BF...

If your car is an FG then fit them so they increase the caster (be careful if you have larger diameter and wider wheels and tyres because they can cause rubbing). I would also change the upper control arm bushes to super pro as this also controls the caster and camber on the vehicle.

Then ask the aligner to set the car with a total front toe of anywhere from +0.5 to +1.0 total toe in for stability and decent tyre wear. 0.5 degrees negative camber works fairly well too.

The rear settings will depend on what bushes have been changed.

[Trentwoody]

Thanks,

Car is an FG and front bushes have been all been replaced with superpro bushes.

I next is to get the rears main bushes replaced with superpro and go from there

[senna_T]

No worries,

All of the above applies to your set up then.

For the rear just ask them to set the toe at +0.5 per side for a total of 1mm toe in. If the rear control blade bushes are still rubber then you can go up to +1.0mm toe per side for 2mm total.