Weight Transfer and Suspensions
PFogel, you are right on track. Also, Ronnie Sox was my hero. Below is a picture of my 1969 Roadrunner that I bought new and made a race car out of. (I still have the car). Think it looks a little like a Sox and Martin Car???? ha ha.
I am also attaching the National Records from 1969. You will notice that Ronnie Sox held the SS/A record at 10.23. I understand that a lot of things have changed since then, but as an example, my engine builder, Steve Wann holds the SS/IA record in a 69 Barracuda, with a 383 with a 625 AVS carburater, at 9.53.....with Cal Tracs, Cal Trac split leafs, and 9 inch tires.
Here is the misconception that I believe most people have, and I think you covered part of it. "Super Stock springs plant the tires". Well, they do, by pushing or separating the rear end from the body. This is wasted inertia. Visualize this: absolutely solid rear suspension in which it will not move up or down. Now a Cal Trac system installed. On a launch, instead of lifting the rear end up, the inertia goes to the front of the spring and is amplified with the Cal Tracs, thus providing more front end lift. Now, we understand that we have to have some spring, so that is why I recommend that a good, adjustable rear shock (I use Rancho 9000) be used. Start on the firmest setting, then adjust from there. Cal Tracs with firm shocks are very similiar to 4 link or ladder bars, except the "lever action" on the front of the Cal Trac gives more lift. One more think, then I will shut up. Cal Tracs are easily adjusted, but most of us adjust the shocks to track conditions. Slick track, loosen the shock..........it hurts the 60' but not as bad as spinning.
Best of luck with whatever suspension you use.
Gary Hansen
![1970_S_RECORD_HOLDERS%20copy[1].jpg](https://www.forabodiesonly.com/mopar/attachments/1970_s_record_holders-20copy-1-jpg.76161/ "1970_S_RECORD_HOLDERS%20copy[1].jpg")
![9057-043_std[1].jpg](https://www.forabodiesonly.com/mopar/attachments/9057-043_std-1-jpg.76162/ "9057-043_std[1].jpg")
PFogel, you are right on track. Also, Ronnie Sox was my hero. Below is a picture of my 1969 Roadrunner that I bought new and made a race car out of. (I still have the car). Think it looks a little like a Sox and Martin Car???? ha ha.
I am also attaching the National Records from 1969. You will notice that Ronnie Sox held the SS/A record at 10.23. I understand that a lot of things have changed since then, but as an example, my engine builder, Steve Wann holds the SS/IA record in a 69 Barracuda, with a 383 with a 625 AVS carburater, at 9.53.....with Cal Tracs, Cal Trac split leafs, and 9 inch tires.
Here is the misconception that I believe most people have, and I think you covered part of it. "Super Stock springs plant the tires". Well, they do, by pushing or separating the rear end from the body. This is wasted inertia. Visualize this: absolutely solid rear suspension in which it will not move up or down. Now a Cal Trac system installed. On a launch, instead of lifting the rear end up, the inertia goes to the front of the spring and is amplified with the Cal Tracs, thus providing more front end lift. Now, we understand that we have to have some spring, so that is why I recommend that a good, adjustable rear shock (I use Rancho 9000) be used. Start on the firmest setting, then adjust from there. Cal Tracs with firm shocks are very similiar to 4 link or ladder bars, except the "lever action" on the front of the Cal Trac gives more lift. One more think, then I will shut up. Cal Tracs are easily adjusted, but most of us adjust the shocks to track conditions. Slick track, loosen the shock..........it hurts the 60' but not as bad as spinning.
Best of luck with whatever suspension you use.
Gary Hansen