Reducing steering kick back

[itiejim]

Any thoughts on how I can do this on my TVR Cerbera?

I have just had the geometry set to factory settings and the car drives very well on smooth surfaces. However, it does (and always has) kick back through the wheel when you go over a significant intrusion in the road, pot hole, bad road repair etc. I guess I'm getting picky, but I'd just rather it didn't do it!

Is there any way I can improve this or is it just a trait of the geometry and steering set up?

[Sam_68]

You'd be better off asking on the TVR forum, as there will be more marque/model specific knowledge over there.

I'm assuming you've had a basic 4-wheel geo already and that your toe settings (in particular) are correct...

After that, the first and biggest step is to get the bump steer checked and adjusted out; you may find that this alone reduces the kickback to levels you find acceptable, at least.

After that, you could look at playing around with the wheel widths and offsets, to reduce the kingpin offset, but there will be side effects - it will influence steering feel, you may need to limit the steering lock slightly to stop the new wheels fouling the arches on full lock, and depending on the wheels selected, you may influence the overall handling balance a little (this can be dialled back out with other adjustments, but it makes the process more involved) - and obviously since this involves new wheels and tyres, it's not going to be cheap. I'm not familiar with the Cerbera (though if it has anything like the front geometry of the Griffith, it's an abortion), so ask around on the TVR forums to see if anyone has managed to find a set of wheel offsets that make a worthwhile difference.

Even after you've done all that, it won't be perfect, though - chassis geometry was never a Blackpool strong point.

[itiejim]

Thanks Sam, I've had a bit of a play to reduce bump steer, but I think there is still some work to do there. I'll complete that and see how things progress.