Fitted ATB diff, massively increased torque steer.
Turbo Mini Forums

thats to good thing about the atb, feels std till you start to loos traction

I agree, still easy to park.

Old thread revival!!

I have a Atb on mine and want to get the suspension set up.
how much caster would be beneficial? I know it varies from person to person but would like a good starting point.
I'll be using the mini for weekends and trackdays and have rose jointed bottom arms and tie rods.

Cheers
Josh

My build thread..

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=542985

3-4 deg

Oh, the reason mine was terrible was because the castor was all over the place. Wound a load in and it's fine now

Remind me of the effects of caster? The more you have the more it tries to go straight?

My build thread..

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=542985

my poor understanding of caster is that as you turn the steering it lays the wheel over that is it adds or takes camber depending on pos or neg setting

when the car is going straight it wants little to no camber to keep the wheel flat on the road for good traction both for braking and acceleration but as you corner you want to lay the wheel over to compensate or the tyre deformation as it takes side loading from the car wanting to keep going straight

so if the car is set un balanced side to side it will fight itself when power is attempted to be put down the automatic torque biasing diff puts power to the side with traction this pulls the car so then you pull the steering wheel the other way this transfers traction over to the other side and the diff changes where the power goes acording to where the traction is
its a repeating cycle that ends in the ditch beside the road

when set correctly the outside wheel in the turn has more traction so the diff puts more power there and the car just hangs on and pulls around the corner as the outside wheel is now trying to go much faster than the inner wheel like its supposed to this gives the feeling like its on rails