I've heard frequently, the theory that a rack mounted solidly at both ends can give unwanted vibes and also "kickback" and "bump steer". I can only speak from my own experience, including 6 years with the Carledo so equipped, but i've had none of that, The steering is just precise and the turn in excellent - and that's it, no downside!
For Alun's benefit, the Carledo is still running it's original rack, which has covered 50+k from new (15k+ with solid mounts) and appears still to be in the same condition as it was when I bought it in 2008, ie minimal play in the n/s track rod balljoint, no other detectable wear. The play is so small, i've not even been bothered to shim it out!
I've not run a car with fully polybushed front frame and suspension AND 2 solid mounts, mainly because I reckon that is a pure track spec, much too much for road use. But I suspect that combo could have unwanted side effects on a road car. With the condition of the roads around where I live, I dont want to risk it!
I've also had a report from Ian (uphill racer) that, in his experience, solid mounts will ensure a bent rack in case of impact damage to the suspension. I don't know what to make of this, my main advice here is "don't bend the suspension!" but Ian was doing stage rallying at the time!
2 door '73 Toledo with Vauxhall Carlton 2.0 8v engine OWF 797M (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine EGP 247T (The Dolomega)
'91 Cavalier 2ltr 8v auto
'95 Cavalier 2ltr 16v auto
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