You'll find that many motorkhana cars run zero caster.

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Cheap, Fast, Reliable. Choose two.

I'm only just beginning to understand alignment needs for various situations - why do they run zero caster?

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did I tell you that I won a trophy?

No body roll?

More stable reversing quickly perhaps? Caster makes forwards more stable but reverse less stable perhaps he wants to reverse @ high speeds for Motorkanas?

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Roads need more corners
A Deluxe(CG13DE), 2 Clubbies(998 and 1275) and 2 Morris 1100Ss

The more caster the more stable the front wheels are at speed however they will need more effort to turn them. Having 0 caster would allow the wheels to turn quicker with less effort.

Easier for reverse work (J-turns), I've been told. This could, of course, be tall stories by old men though

Like i said, I've only just finished mine but i'm sure it'll change as I go and learn/develop the car for the job

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Cheap, Fast, Reliable. Choose two.

Forwards speed

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Simon

The adventures of an owner builder in the Tallarook Ranges

Correct. Positive caster on a vehicle is measured in the forward direction. Most vehicles travel faster in the forward direction. Travelling in reverse makes it negative castor.