Suspension & Brakes Springs | Shocks | Handling | Rotors

Spring Rates ?

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Old Jan 15, 2007 | 09:49 PM
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Default Spring Rates ?

What spring rates do I have in my 99ss ?
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Old Jan 15, 2007 | 10:00 PM
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Here you go. link
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Old Jan 15, 2007 | 10:19 PM
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WOW, thats a cool link! Thanks soulless!
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Old Jan 16, 2007 | 01:35 AM
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Thanks for the info
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Old Jan 16, 2007 | 03:15 PM
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No problem guys. Now if we could just get a certain suspension wizard to release his spring rates we would have all the common ones.

Just kidding Sam!
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Old Feb 5, 2007 | 09:31 AM
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That's good information, but didn't SLP change the oem Z28 springs out for a different spring on the SS's from 98-02?

I'd like to know if there's a difference between the oem z28 springs and the standard SS springs and if so, what is it?
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Old Feb 5, 2007 | 09:44 AM
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OK. I looked around a little more at other posts and it looks like the answer is no.
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Old Feb 5, 2007 | 10:20 AM
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Originally Posted by soulless
No problem guys. Now if we could just get a certain suspension wizard to release his spring rates we would have all the common ones.

Just kidding Sam!
I didn't think the strano spring rates were any secret. Are they?
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Old Feb 5, 2007 | 10:51 AM
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Originally Posted by z28bryan
I didn't think the strano spring rates were any secret. Are they?
They are posted in his sale thread.
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Old Feb 5, 2007 | 11:42 AM
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Originally Posted by soulless
No problem guys. Now if we could just get a certain suspension wizard to release his spring rates we would have all the common ones.

Just kidding Sam!
Um, I never hid them, they are out in the public domain, and I released them when production springs went out.

550 front, 150 rear
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Old Feb 7, 2007 | 09:55 PM
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man i feel dumb...what exactly do the rates mean? Is there a link that explains this?
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Old Feb 8, 2007 | 09:27 AM
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Originally Posted by Sam Strano
Um, I never hid them, they are out in the public domain, and I released them when production springs went out.

550 front, 150 rear
I'm an idiot. I just remembered when the springs were in the "testing" phase you didn't seem to want to give out the specifics. Sorry for spreading misinformation.
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Old Feb 8, 2007 | 09:37 AM
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Originally Posted by KissMyWhiteSS
man i feel dumb...what exactly do the rates mean? Is there a link that explains this?
Here is a good link.

From what I understand, a 292 lbs/in spring compresses 1" for every 292 lbs, but I have been wrong before. (see above post)
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Old Feb 8, 2007 | 10:13 AM
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sweet, that helps a good bit. thanks.
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Old Feb 8, 2007 | 11:05 AM
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Rate is the amount of force it takes to compress the spring 1". And that energy is stored in a compressed spring, and will be expelled when the spring is extended. Hence the reason we have shocks, and why lowering springs need more shock control.

I do wish to add on thing. Stock springs while 292 or so (they vary a little) in front, are under a tremendous amount of pre-load. Just sitting assembled they are compressed some 4-5". They are soft, but also long. And lowering springs have very little preload which has to do with why the lowering sprinsgs when used with proper dampers don't ride as badly as many think. Certainly much firmer, but actually less harsh at times (again, the shocks have a lot to do with this as well).
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