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The Front End on my car is really
what makes this car tick. When I built the first of this
type of car I'd wanted something that would actually steer.
At the time some cars had beam axles, ala Austin 7 and Ford
10. Others built by the likes of Dale Shaw & Barry
Hudson used double wishbones. Although we all knew something
of what I suppose is the current English design, like Syd
Hirst's of NZ, nobody had done anything with them here.
Certainly not with a rear engined car. The difference using
a rear engine configuration like the VW meant that I was
fairly limited in what I could achieve with the rear end
travel so the next best thing was to get the front to do all
the travelling. Right from the start I wanted to use
components from very ordinary cars so spares wouldn't be a
problem. I'd fixed the idea of a strut type in my mind, and
after some seaching found that the KE30 type Corollas had
pretty much all I needed. Cheap & plentiful.
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Mr. Ackerman states that the inside front
wheel must turn more than the outside to take account of the
smaller radius described when turning. Back
While the 'Ackerman' principle is not strictly adhered to in
a lot, if not most, modern cars, as manufacturers might take
into account particular slip angles at various speeds &
for various surfaces, it is important in a Trials car where
incorrect angles can cause the front wheels to either slide
or slow the car down simply because the wheels are fighting
each other. Click
here for the next illustration,
showing how to prove whether your ackerman angles are
correct.
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