[msterling]

Originally Posted by Driven97

If you want an STR legal option for bushings, Racer's Edge makes them in Delrin. Also waaaaay cheaper than the Elephant parts. I have them in the outer positions only, as it was easier just to swap those. I still have Neatrix rubber on the inners. Fair warning - they do squeak just a bit, but not nearly as bad as I was expecting. Nothing you can hear while driving, just if you bounce the suspension while the car is parked.

They also make ones for the front, if I knew about them I would have gone with those instead of the polyurethane ones from our host. Not interested in tearing the front end back apart quite yet, though.

I'd also put a nice priority on dialing in some more rear camber, especially with the soft rear torsions. Made a HUGE difference in the rear grip level in my experience.



This is with the 33mm out back, and the factory adjuster maxed out, which was about -1.5° or so on my car. Clearly not an ideal contact patch on the outer rear.

The 33s are 400% as stiff as the OE t-bars, so a softer torsion car is going to have a lot more roll. I went to -3.0° using the CamberMax after that event, and gained a lot of steady state rear grip and much more predictability near the limit. The tradeoff is a bit faster inner than outer tire wear, but not as bad as I expected.

They're a neat product, but if you look how they work, you can probably accomplish the same thing for free if you have a c-clamp, an appropriately sized piece of shim scrap, and a bit of patience laying around. Free is good.

I'm a big proponent of doing one step at a time when possible, so you can see the results & gains (if any) that each individual product provides. An "all at once" approach is fine, but it's such a shock to the wallet, and you end up having such high expectations for results. In reality, there's a ton of testing & tuning needed to exploit any mod. Having to dial in a bunch at once is much more difficult than the one at a time method.

Good luck, and keep us all posted on what works and what doesn't for you. There's not nearly enough of us autocrossing torsion bar cars.

Thanks for the tip on the Delrin bushings. My guy at the shop was talking about some hard plastic bushings but was not sure of the source.

I understand the reasoning for changing one thing at a time but this is now the off season and I won't get a chance try things out during the Ohio Winter. Shocks T-bars and bushings along with a revised alignment is a major change. Hopefully the combination will improve the performance.

Is there such a thing as an adjustable front sway bar that is not through the body? Would an adjustable rear bar do the job if I need to balance the car? I'm not sure.

Yep, I was the only Porsche at the last couple of SCCA events. With the upswing in 911 valuation I wonder if fewer will be used for competition. I don't see any reason to have the car if I can't have some real fun with it.