Front Sway Bar Installation, On 1970 w/o factory bar Options

[Dave-O]

Hi all,
I'm looking to install a front sway bar on my 70'. After going through all the effort to track one down and install it i would much rather end up with a 19mm bar rather than the stock 17mm.

First question: Does anyone have a 19mm bar lying around?

Second question: What 911's came with a stock 19mm through the body front bar? (this information would make it much easier to track down a used bar)

Third question: If i am unable to find a 19mm bar, does anyone have a stock bar that they'd be willing to part with real cheap? (sorry, i'm a poor college student who will probably be addicted to autocross within the next week (IMG:style_emoticons/default/rocking nana.gif) )

On a side note, I'm going to my first autocross this weekend: the MOWOG event in St. Cloud MN. Any members attending? It would be nice to have someone with experience to give me some pointers. It should be fun to get out there in my car with no sway bars and cheap street tires (IMG:style_emoticons/default/MDB2.gif).

Thanks

David

[SirAndy]

My tires are steet compound 205-60-R15 on 2.0 Fuchs.

what brand tires? this is a trick question. (IMG:style_emoticons/default/biggrin.gif)

there is no "right for all" number on the pressure. it is different from brand to brand.
i have a set of normal street tires (Nankang) 225/50 x 15 and they have very stiff sidewalls. i run them on 25lbs cold which seems to be the best compromise.
that might be way too less for your tires.
unless you have a brand someone else is using, you will have to experiment with the pressure.

one thing about street tires in general, they seem to get much worse (less stick) the hotter they get.
on my tires, the first run is always the best, sticky wise. too bad it's also the run where you try to figure out the course ...

Would a stock bar with stockish rear springs still lead to understeer?

unless your car is already *tailhappy* it most certainly will ...
get a adjusteable bar. then get heavier springs in the back or a rear bar.
then adjust front until car is balanced.

(IMG:style_emoticons/default/driving.gif) Andy