I'll run the numbers through WinGeo3. Measurements are
taken a bit differently than most but not that
difficult to do. Let me know who is interested.
John Goodman
--- DrMayf <drmayf@teknett.com> wrote:
> Providing Keith is willing, we have a great
> opportunity to validate some of
> the design philosophy for LSR cars. We have know
> data for the 249.1 mph run
> out the back door at Speedweek for Keith's car with
> a rigid suspension. I
> would bet that Keith has the corner weights for each
> wheel as well as
> overall weight with driver. Keith and Dave know what
> the cars configuration
> looked like before those runs and with a few basic
> measurements I suspect
> that the suspension guru's on the list could make
> all the calcs to come up
> with roll center, roll axis, stability criteria etc.
> Probably more than we
> really want to know. Keith has now replaced the
> rigid rear end with a
> modified 4 link with diagonal bar instead of a
> Panhard bar. Again, with a
> few simple measurements I bet the gurus could tell
> us how much the car will
> run at EM based on the premise that suspension helps
> top speed and knowing
> the density altitude for any given day at EM ( and
> the power developed by
> the motor along with the requisite aero junk and
> rolling loads). I would be
> really interested in the data. My car is fully
> sprung using a 4 link and
> struts at the front. So it is all relevant for me.
> Keith, you game? Nothing
> required from you except maybe some data and a few
> extra measurements. The
> only one that is problematic to get is that pesky Z
> axis cg location.
>
> Which of the suspension gurus want to play providing
> Keith is willing? I do
> not have a clue so I am out of the running here.
> Dave, John? Anybody with
> the appropriate software?
>
> I am a believer in suspension for a couple of
> reasons, one being that it is
> easier on the driver and 2 it is easier on the car.
> Bump shock loads are
> significantly reduced In magnitude and energy) in
> both instances and that
> means a happier driver and car to me.
>
> mayf
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