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Author
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Topic: Coil springs
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Roadkill
Journeyman Posts: 80
From: Chesterfield, Mi, 48047
Registered: Jun 2005
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posted 11-25-2006 01:17 PM
 
Im curious of what is the difference between variable rate and progressive rate springs. Thanks Ed
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Scott H
Gearhead Posts: 1480
From: Chicago area
Registered: Mar 2005
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posted 11-25-2006 01:36 PM
I think they are the same, just two diferent names for the same thing.A variable rate/progressive rate spring will act like a stock-type spring for the first inch or so of compression, and it will get progressively stiffer the more it compresses. So the rate is variable depending on how much you jump on it.
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Fastback68
Gearhead Posts: 4511
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 11-25-2006 09:09 PM
That's right, Ed. If you're still confused, maybe it's 'cos some folks (very few?) do call linear rate or constant rate coils "progressive" rate. I've seen it in print at least once.
Sometimes I think it's out of ignorance, but the fact is that stock linear rate springs are slightly progressive.
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