castor setting

Hotrodz

None for the track as he said more caster the faster. I am at 6.5 and -2.6 front and -2.0 rear with just a tad of toe on both.

If you run mostly on the street more caster and camber will lead to excessive tire wear on the front.

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littlejuanito

This is what I was referring to specifically. I do half street and half spirited driving so I'm wondering if I should be more conservative on positive caster.

MaysEffect

Adding both additional caster plus camber will increase tire wear, this comes from excessive camber gain during high steering lock.in normal traffic conditions caster itself won't do anything to the tires. You only need one or the other though. With increased caster (6 degrees or greater) you begin to lift the outside wheel away from the ground more. This plus the camber curve from the A arm design would significantly reduce tire contact with the road. With low profile tires you run the risk of sliding the tire more. This doesn't do anything for heat management. It will however improve steering feel and linearity. This is the biggest benefits imo other than additional camber gain. However the camber gain is not a problem with the oem geometry.

If you want to increase caster over 7 degrees. Its best to keep the static camber as low as possible. Reducing camber with the upper control also reduces the amount of camber gain by reducing the camber curve slightly. So it's a win win.

Also increasing caster on this car changes the anti dive characteristics, some may notice trail braking and lift oversteer may become more unstable. To help with this you may need to play around with the rake.