hi,
Just some basic thoughts re rally setup.
Try & set up your roll stiffness characteristics using mainly your coil
springs & minimise your roll bar sizes. (note that shocks have stuff all
impact on roll stiffness as the velocity is too low)
A stiff roll bar connects one side wheel to the other, hence on potholed
rough dirt roads wheel hop/bounce etc. - therefore poor traction. You
want the wheels to move independent of each other. What works well on the
track does not work that well on the dirt.
Another comment - if you look at the early works RWD rally cars in action
you will notice a fairly low rear spring rate - a lot of movement under
hard acceleraton - good traction?
Greg Ho
----------
> From: Ritchie Williams <[EMAIL PROTECTED]>
> To: OZdat <[EMAIL PROTECTED]>
> Subject: Spring Rates
> Date: Tuesday, May 16, 2000 2:28 AM
>
> Does anyone out there have any experience on spring rates for use on a
> Datsun 1600 for use in rallying?.
>
> I have a Datsun 1600 rally car which I use on both Tarmac & Gravel. The
> car handles really well on Tarmac but some times seems a bit nervous &
> struggles for traction on Gravel.
>
> My present suspension setting for both Gravel & Tarmac are:-
>
> Front
> Springs - 200lb Lovell (adjustable ride height on threaded sleeve)
> Shocks - Revalved Bilsteins
> Rollbar - 22mm Whiteline
>
> Rear
> Springs - 400lb (I have a spare set of 350lb springs) Lovell
> Shocks - KYB rally
> Rollbar - 19mm adjustable
>
>
> Thanks for any advice
>
> --
> Ritchie Williams
>
>
>
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