Cal Tracs and Instant Center????

Dinsdale · 07-25-2011, 02:22 AM

Well, I'm far far from being any kind of suspension expert but it seems like your rear springs may be part of the problem. As soon as you have a spring that is trying to control windup and a traction device such as a Cal Trac then you end up with a conflict of interest. I've seen low 10 second cars with just a slapper bar and there are the old Mopar S/S springs that worked well without any help.

All the spring needs to do in a race car is set the ride height. Then the traction device (I.E. Ladder Bar, Cal Trac etc.) along with shock adjustment is tuneable. That's why a coil over setup works as well as it does. My suggestion for the little it's worth is go to a Calvert Mono spring for your car or keep the current ones and ditch your slide a links and clamp the front half of the springs or try a cheap set of slapper bars if you get wheel hop.

The other thing mentioned is a stiff sidewall tire but they don't come in many sizes so you have to do some research on that deal. I run a Goodyear 29x11 and they quit working long before they are worn out because they are a regular sidewall.

07-25-2011, 02:22 AM	#16
Dinsdale Member Join Date: Oct 2004 Location: Canada Posts: 313 Likes: 0 Liked 6 Times in 2 Posts	Re: Cal Tracs and Instant Center???? Well, I'm far far from being any kind of suspension expert but it seems like your rear springs may be part of the problem. As soon as you have a spring that is trying to control windup and a traction device such as a Cal Trac then you end up with a conflict of interest. I've seen low 10 second cars with just a slapper bar and there are the old Mopar S/S springs that worked well without any help. All the spring needs to do in a race car is set the ride height. Then the traction device (I.E. Ladder Bar, Cal Trac etc.) along with shock adjustment is tuneable. That's why a coil over setup works as well as it does. My suggestion for the little it's worth is go to a Calvert Mono spring for your car or keep the current ones and ditch your slide a links and clamp the front half of the springs or try a cheap set of slapper bars if you get wheel hop. The other thing mentioned is a stiff sidewall tire but they don't come in many sizes so you have to do some research on that deal. I run a Goodyear 29x11 and they quit working long before they are worn out because they are a regular sidewall. __________________ Dale Posnick