Carrera Anti-sway Bars on SC

[David Inc.]

I'm considering adding a bit of roll stiffness to my '82 SC (22/28 bars with Bilstein sports front/rear) by switching to the 86 carrera anti-sway bars. Looking at the numbers, though, I see that this would be going from 20mm/18mm front rear to 22mm/21mm front rear.

This is a healthy increase in stiffness (+50%), but it looks like it's also a significant change in front/rear balance going from 20/18 to 22/21. What's the general thought on this replacement?

[IROC]

I ran these bars for years on my '76 (with the torsion bars, etc. noted below) and I found them to be great. They aren't adjustable, of course, but they were a nice improvement over the 20/18s that I was running previously. I was tracking my car a lot during this time and the overall balance, etc., was fine.

[David Inc.]

Originally Posted by IROC

I ran these bars for years on my '76 (with the torsion bars, etc. noted below) and I found them to be great. They aren't adjustable, of course, but they were a nice improvement over the 20/18s that I was running previously. I was tracking my car a lot during this time and the overall balance, etc., was fine.

Hey thanks, so after the change you didn't feel any pronounced shift towards oversteer?

[IROC]

Originally Posted by David Inc.

Hey thanks, so after the change you didn't feel any pronounced shift towards oversteer?

Not at all. Even with my existing-predisposition to oversteer with 22/29 torsion bars.

Others should weigh-in, though. Everyone's cars and driving styles are unique. For instance, I was also running 245/275 tires at the time. 275s in the rear can mitigate some oversteer.

[David Inc.]

Originally Posted by IROC

Not at all. Even with my existing-predisposition to oversteer with 22/29 torsion bars.

Others should weigh-in, though. Everyone's cars and driving styles are unique. For instance, I was also running 245/275 tires at the time. 275s in the rear can mitigate some oversteer.

Hah, holy smokes dude that's a lot of meat. I'm still on the stock 205/225s so yeah might need some more input.

[Bill Verburg]

Originally Posted by David Inc.

I'm considering adding a bit of roll stiffness to my '82 SC (22/28 bars with Bilstein sports front/rear) by switching to the 86 carrera anti-sway bars. Looking at the numbers, though, I see that this would be going from 20mm/18mm front rear to 22mm/21mm front rear.

This is a healthy increase in stiffness (+50%), but it looks like it's also a significant change in front/rear balance going from 20/18 to 22/21. What's the general thought on this replacement?

One of the better sway bar discussions can be found here

[HaroldMHedge]

I installed the 86 sway bars into my 82 SC along with 21/27 hollow torsion bars. The setup worked great for me.

[PeteKz]

David, you already have 22/28 T-bars, and you want more roll stiffness? If you have some of the later bars, sure slap them in and see what happens, but I expect it will make for a (even more) rough ride on less than perfect streets.

[David Inc.]

Originally Posted by PeteKz

David, you already have 22/28 T-bars, and you want more roll stiffness? If you have some of the later bars, sure slap them in and see what happens, but I expect it will make for a (even more) rough ride on less than perfect streets.

Yep! On track with modern rubber it's still rolling onto the tire shoulder too much. I do need to raise the car back up a bit to have a better roll center (or raise spindles) which might reduce roll, and I can check on that before going up on the anti-sway, but I'm not using all the tire that I can. That's with about two degrees camber up front.

At one point I was using a Ventus RS4 and was pretty much shaving the shoulders. I had to swap tires on the wheels after a couple of track days to have any shoulder left. (Edit: thinking on it this was back on stock t-bars, though, so not an apt comparison)

I've for sure been wary about adding more stiffness though, as I live in North Detroit and the roads around here are not wonderful.

Originally Posted by Bill Verburg

One of the better sway bar discussions can be found here

Thanks!