Coil Overs for Model A

I need some info RE= Coil overs on my 30' A(rear). Dimmentions are already taken care of( length),but the problem is spring rate.I've seen from 180 to 300 offered,and can only guess at this point. I will be getting on it now and then,and it won't be a canyon carver. Typical V-8/auto deal.
Any info/recomendations plz!
Thanks-Kid

 

My '32 Coupe had 200# springs. Rode good and only bottomed on bad potholes, driveways and dip, no problem.

 

my `28 ford full fendered tudor has 220 lb springs set on a 27 degree angle and rides and handles great. the angle the coil over shock is mounted has to factor in your choice , anlog with how heavy your car is


a `32 full fendered 3 window i built had 200 lb springs and i felt they were too light. i can't remember what angle they were mounted

 

The length makes a difference and you didn't mention what that is. Longer springs can have a lower rate and shorter ones need a higher rate. I went through three different set of springs on the back of my A before I finally got something I could live with. Not a very cheap way to go.

 

As far as weight of the car goes,that i'm clueless about.I just took a mounting angle and it's 20 degrees. I guess that I just don't want it too stiff,as angle will bleed off some rate,but,I don't want to bounce either.200lb sounds good,but as never doing THIS before,it gets a little pricey to f'up.Cake and eat it too?

 

My 31 coupe weighs 2700 lbs. & I run 180# springs. Rides good bottoms out on bad bumps. I would not go over 250#

Later, Mark

 

I believe you will be OK with the 200# springs. I have the same set up on my fenderless coupe with a 6" Z'ed ch***is and I never bottom out and the springs have good rebound.