Hot Rods Questions on rear coil over shocks

Building 31 Ford coupe, gas tank and battery will be in trunk. No fenders, and coil overs will be mounted around 15 degree angle. What spring rate would be best? Thanks in advance. Mike

 

Ride Tech has a great website listing vehicle weights and spring rates. It's based on hundreds of cars that they have weighed at rod runs over the years.


Sent from my iPhone using The H.A.M.B. mobile app

 

Then bump up the spring one or two rates because of the angle.

Mike

 

Ride Teck does have a nice chart setup. Ultimate you will be somewhere between 175 to 220 lb springs. They also sell top quality coil over shocks. Other good brands are afco, Bilstein, qa1. Stay away from alden eagle, famouse for leaking.

 

Wow, awesome info here!

 

Getting sick of posting this stumpy?????


Roo

 

Find someone with a set of scales, a lot of round track racers have them and actually weigh the car and that way you won't be guessing. Springs are pretty cheap so you can play with spring rates until you get the one that fits your needs.

 

Here's my $0.02 input on the method I use...On the rear , I weigh the car to get Sprung weight... Block the body up and disconnect the shocks ..weigh the rear end ,suspension (Un-sprung weight ).. Deduct Un-sprung weight from Sprung weight.. Take that figure & determine corner weight , correct for shock angle...order springs...
Easy peasy...
I know those charts would probably be the same results , but to me I'd rather know exactly what my car weighs..
I use a set of 4-corner racecar scales ,so I also get frt.to rear ,cross weight , bias and all sorts of useless info..
Stan