Quote:
|
Originally Posted by 67 Camino
Factory front GM A body springs range from 15 to 18 inches free height. You don't want more than about 500 psi for a street car or it will be too stiff. The wire diameter and spring height determine the spring rate.
|
Relax guys, I'm going to be nice because he obviously both new to the site and to cars in general.
Camino, if you are going to post technical spec or pretend to speak tech jargon you must first learn a little bit about what you are speaking of. Spring rate is calculated using number of active coils, wire diameter, and mean diameter. Free height never factors in to rate. As already stated, springs are rated in lbs. in.; not psi. 500lbs is pretty weak for most cars, even factory springs in newer cars are over the 500lbs. in. mark as manufactures have figured out that heavy rates do not equal harsh ride. I run a 750/175 combo and am going to up to 1000lbs. in the fronts (yes, I drive it everyday on city streets). Lastly, the two schools are not light springs/big bars and big springs/big bars, they are light springs/big bars and big springs/light bars.
Derek, you are going to need at least a 7/8" bar up front, the 700# just aren't enough by themselves.