Need your thoughts - rear bar Options

[Cracker]

Rear Sway Bar
Need the pros & cons, options and what YOU have actually used. Basically, I have found that there is only the small factory assembly and the Weltmiester system available. I spoke with Ira at Tarret Eng. yesterday but the few prototypes he built years ago are all gone.

Goal
I'm running 315/35/17 rears, a LSD and 300 lbs rear springs. I still have way too much rear body roll than I want. I've tightened up the front sway bar and removed rear camber and that has helped but feel I need a rear bar help beyond that with the body roll out back.

Your thoughts & options?

[stewteral]

Rear Sway Bar
Need the pros & cons, options and what YOU have actually used. Basically, I have found that there is only the small factory assembly and the Weltmiester system available. I spoke with Ira at Tarret Eng. yesterday but the few prototypes he built years ago are all gone.

Goal
I'm running 315/35/17 rears, a LSD and 300 lbs rear springs. I still have way too much rear body roll than I want. I've tightened up the front sway bar and removed rear camber and that has helped but feel I need a rear bar help beyond that with the body roll out back.

Your thoughts & options?

Hey Cracker:

UPDATE INFO: On 05 May, I ran a track day at Willow Springs (the Big track)
and found I kept adjusting the rear swaybar SOFTER & SOFTER until it was the Best at only 28 lb/in Wheel Rate. This is a BIG reduction from the previous 96 lbs/in.

Last Thursday & Friday I was at Infineon Raceway and found that the Willow setup with 1 step SOFTER front bar gave me my best results ever.

The lesson here is to get most of your wheel-rate from the rear springs and just use a SMALL amount of rear bar for fine tuning. With all the weight in the center of the car (Low Polar Moment of Enertia) the car needs only a small amount of Roll-Stiftness to work. As I learned, a big rear bar means nothing but rear instability!!

With the softer rear bar, I picked up more understeer, but softening the front bar made it BETTER! Roll is NOT a bad thing as the goal is BALANCE!

I'm running a Chevy V8 so my rear springs are at 400#, if you have a 911 motor, of course your springs will be softer. Regardless, dialing in mostly with spring rate and then fine tuning with a "light" rear swaybar is the path to success.

Best of luck

Terry