Never too old to learn -
My older vintage cars (all formula cars) have so-called "radius rods" at the rear - from a geometry point of view they are wide-based A-arms - and they provide significant and adjustable anti-squat - see significantly 'sloping' radius rods in the pic. Similar but less pronounced anti-dive at the front.
My more modern cars - post 1990 - have real A-arms with fixed and parallel attachment points - in other words no anti-dive, no anti-squat. What happened? Did the science change? Is it no longer important? Maybe stiffer suspensions made it redundant in designers' minds? Do any modern cars have any a-d or a-s and is it adjustable - probably with shims?
Yes - I have re-read Carroll Smith on the subject - written about same time as my older cars were built. I understand the theory but don't understand the design philosophy drift.
Thx - Derek
My older vintage cars (all formula cars) have so-called "radius rods" at the rear - from a geometry point of view they are wide-based A-arms - and they provide significant and adjustable anti-squat - see significantly 'sloping' radius rods in the pic. Similar but less pronounced anti-dive at the front.
My more modern cars - post 1990 - have real A-arms with fixed and parallel attachment points - in other words no anti-dive, no anti-squat. What happened? Did the science change? Is it no longer important? Maybe stiffer suspensions made it redundant in designers' minds? Do any modern cars have any a-d or a-s and is it adjustable - probably with shims?
Yes - I have re-read Carroll Smith on the subject - written about same time as my older cars were built. I understand the theory but don't understand the design philosophy drift.
Thx - Derek
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