> I Asked this a week ago but no bites...Does anyone know what suspension I
> can put in the rear of my 81 Cat to make it ride better....I would like to
> modify the sled as little as possiable. Someone must remember these sleds
in touch with anyone who could sell you performance parts?
As far as putting an updated suspension in it, if the track is
the "standard" size, you *should* be able to adapt a modern rear
suspension. For instance, I'm putting a '96 XTRA-10 rear
suspension in my '90 Indy 500 and all I have to do is drill 4
new holes in the tunnel (at the right spots, obviously).
If you do try something like this, you won't get all that much
improvement unless you put in something like maybe an '88
Polaris, for instance. The reason I say that is that the
improvement you'd get from putting in an '82 or '83 suspension
wouldn't be worth the work and a much newer suspension, like an
XTRA-10, would be pretty expensive. So expensive in fact that
rather than do that you'd probably be better off to try and find
an '86 Indy 400.
You seem like you're pretty handy with a wrench, have you looked
around for a wrecked Indy? Or maybe one with a blown engine?
Your Sidewinder is a pretty rare sled, you could probably get a
decent price for it, buy an '86 Indy 400 that needs a new
cylinder (or something like that) and still have enough money to
fix it up.
If you're determined to try a new suspension in the Scorpion,
the suspension from my '90 Indy 500 is for sale. It's an SKS,
so you'd have to buy new rails to convert it back to a
short-track, but it should bolt into your tunnel, providing your
track is the standard length, what is it? 121 inches?
As far as the front suspension, I can't ever remember seeing any
kind of leaf spring to IFS conversions. It could be done but it
would take some major re-engineering. I know the TSS was never
considered a great suspension, but it was better than leaf
springs and it doesn't seem like it would be as hard to mount as
a trailing arm design would be. It would still be a big job.