Perhaps I'm off base and/or forgetting my basic geometry, but isn't the
track supposed be measured at a point on the rim on the (horizontal)
centerline of the wheel and thus should not be effectively increased by
camber, but rather decreased as the camber pulls that point closer to the
center of the car? (unless, of course the standard is measured with positive
camber and the negative is less than absolute value of the positive
measurement...)
Of course, having rims too wide or with the wrong offset would cause it, as
would measuring at the top or bottom of the rim.
On Thu, Aug 26, 2010 at 3:37 PM, MadMarx <tr4racing@googlemail.com> wrote:
> Hi guys,
>
> Question:
> I have to look after the rules of our group and announced that we will
> measure track width at the next event.
>
> I got the question of a Spiti racer how he should stay under the max track
> width.
>
> Our rules says that the max track width of that car (Spitfire 1500) is:
>
> Front: 1296 mm = 51.02"
> Rear: 1321.6 mm = 52.03"
>
> He says, if he does use the wishbone spacers at front to achieve negative
> camber he gets over the max track width.
> For the rear he claims that his leaf sping is weak, so he has lots of
> negative camber and the he is over the track width at rear also.
>
> I'm not so familiar with that car but maybe you can help me with your
> experience how difficult it would be to stay under the max track width
> values.
>
> Does his trouble do come from the wheel rims? Too wide or too much offset?
> Or is this a common problem with that car?
>
> Cheers
> Chris
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