Irish Yobbo wrote:
I'm not sure if any of the above links make not of this, but it's not the uneven driveshafts that cause torque-steer. It's just a front-wheel drive thing - the pivot of the driving wheel cannot be in the same position as the centre on the wheel, which creates a turning force. If wider wheels are used, the front wheel pivots will be further off-centre from the centre of the wheels, which worsens the problem.
In a perfect world, both the wheels will be the same since the turning force on each side will cancel out, but in reality, they will be different, and torque-steer will occur.
I'm no expert, but I think the best thing to do is just make sure all the steering geometry is accurate and even, and make sure the parts aren't worn.
You are talking about `scrub radius', which is the offset between wheel centreline and the projected balljoint axis.
A tyre's centre certainly
can be in line with the balljoint axis, (ZERO scrub radius) or even inboard of that as on the VW Golf (NEG scrub radius). VW did that for stability.
A stock Mini (3.5" steel wheels) or Cooper S (4.5" steel wheels) does not have much positive scrub radius at all, so `bump steer' isn't a problem. However when us boyz fit stupid wide (and sometimes stupid big) wheels with big offset, steering stability over bumps, tramlines or ruts suffers regardless of the HP. More HP just makes it worse.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.
