Front Spring rate??? - 1st gen Camaro

[David Pozzi]

Even a 1" bar seems a little big on a car with that much spring. If he were running the 380's or even a 450 maybe. A 1" bar on a 3500lbs car with over 500lbs at the spring sounds like oversteer city...just an opinion from a non-Camaro guy.

Hotchkis kits use a 1 1/8" hollow ft bar and ft coil rate of around 700.
The rear leaf springs are 175 and they sell a rear bar kit too but I don't know the rate.

The rear bar may not be needed depending on F/R tire sizes and F/R weight balance, also the stiffness of the rear leaf bushing material has a lot of influence over rear roll stiffnes.



Often with this setup and larger rear tires compared to front, a SB equipped first gen may need a rear bar if there is too much understeer.

For road racing, rear bars are not popular because they hurt traction on corner exit. But when you look at the spring bushings many road racers use, they are usually very stiff or solid bushings, which tend to twist the springs when cornering, and adds a lot of extra rear roll stiffness.

I think you can back down on these spring rates for a milder street package, IF the tires are not super wide or sticky, AND the car is not too low and you don't have 500 hp.

I used 550 rate coils and they were pretty nice but when I got more traction and HP, I needed to go stiffer.