Keith:
Something that has been helpful to me is to find true
centerline of the chassis and permanently mark it
front and rear. From those datum, you can establish
and check all suspension points. One word of caution:
Do not take a short cut by measuring between two
suspended corners. This will not give you true
centerline.
Once accomplished, this procedure makes toe, wheelbase
and track verification and/or changes easy and
accurate. Additionally, any suspension modifications
you may want to make at a later date will begin with
these datum points.
Oh how I like data acquisition. It sure helps take the
guesswork out of what was though of as black art. Nice
to be able to quantify, eh?
John Goodman
--- Keith Turk <kturk@ala.net> wrote:
> I was out there starting the calibration process to
> determine what I learned
> at Maxton and realized that this car doesn't have an
> establishted set of
> chassis data points...
>
> By my definition that means a place I can go and
> take a measurement and get an
> expected number...
>
> I have that with the Camaro.. I know the wheel base
> is 108" exactly because I
> set it off of the lower ball joint grease fitting
> and a string on the back of
> the axle... ( there is some other math in there but
> for the point of this it's
> not important)
>
> If I take the rear out of the car or adjust the 4
> link or watts link... I can
> always go back to that measurement and see if
> anything has changed.
>
> There are many more examples like that... So I
> guess my point here is ... as
> we're building cars it seems reasonable to me to
> establish in advance those
> points where we are going to take measurements...
> and if the car ever has any
> issues we will always know where to go back to...
>
> What do you think?
>
> Keith
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