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Old 05-21-2012, 09:18 AM
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spring rates

Im curious to find out what the spring rates are for a 73' chevy nova. i currently have a set of spring in the front, but the car rides stiff and is bouncy, i was gonna cut half a coil out of them to bring the height of the car down. i know i will still have a stiff ride though. im curious to know what the spring rate difference was between a small block car and a big block car. i might have big block springs but i have a small block under the hood.

thanks for the input.
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Old 05-21-2012, 09:31 AM
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The ride stiffness will increase w/the cut springs. "Bouncy" can be a lack of shock damping.

Stock might be in the area of 250# for a six or SB w/o AC to >300 for AC and/or BB. But that's not really going to help you, you'll need to know what the front end weight is to select a spring, most recyclers will weigh the car for you for a buck or three. Drive it half on then get a weight (front), all the way on to get a total weight then half off to get a rear weight, it'll come in handy for other things like computing the HP from a drag strip run.
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Old 05-21-2012, 09:44 AM
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would you suggest replacing the springs and going back to a stock spring rather than cutting a coil out of the current spring.
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Old 05-21-2012, 09:53 AM
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Quote:
Originally Posted by novadan
would you suggest replacing the springs and going back to a stock spring rather than cutting a coil out of the current spring.
The thing is, often stock springs are taller than most guys like the ride height to be- although I can almost guarantee you the ride will be better than what you've described here today. Taking a coil off a stock spring can get the ride height right, but the spring rate will increase as well, so it's a balancing act of sorts unless you weigh the vehicle and pick a spring based on that for the rate and use the OEM free length as a baseline for how long the spring needs to be to give you the ride height you want.

If you contact a company like Landrum, they'll prolly be able to get you closer than just buying a stock-spec spring and using it as-is or cutting it.
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Old 05-31-2012, 09:22 AM
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Cobalt is right on.... if the car is at the height you want it and it is "bouncy" then you need to put new shocks on the car....
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