Global west stage 3 spring rates...good??? - Team Camaro Tech
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post #1 of 10 (permalink) Old Aug 13th, 03, 06:52 PM Thread Starter
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Hi all,
Just talked to global west regarding their stage 3 suspension packages. They advised me for a big block 69 camaro the front spring rate would be 580lbs and the rear springs at 150 lbs. Does this sound like a good combo or is it a little to "soft". I was looking for fronts around 600 and rears near 200. Where can I find rates like these or do I need to custon order everything?
thanks for your comments
Kelvin

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post #2 of 10 (permalink) Old Aug 13th, 03, 09:42 PM
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Sounds like a nice rate for a daily driver or car that will see a lot of use. For high perf driving like autocross or open track stuff, driving the heck out of it with pretty wide tires, you could go stiffer like you say.

David

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post #3 of 10 (permalink) Old Aug 13th, 03, 10:51 PM Thread Starter
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Thanks Dave,
Now where can I buy these rear leaf springs with the stiffer front halves in a 200 lbs rating? Also where do you recommend to buy front springs with a 600 lb rating?

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post #4 of 10 (permalink) Old Aug 14th, 03, 08:01 AM
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1-800 Call Tom. Chicane 67 on this board can hook you up (pun intended) with a proper set of springs for your ride, it'll depend alot upon what you want to do with the car. I run the full Hotchkis setup on my 69, and am pretty happy with it so far. I drive it on the street alot, it does not beat me up, and it handles very, very well. Not a bad setup for ordering out of a catalog, but if you want something more elegant, go with Tom's suggestions. He is wise beyond his years with these cars.

That said, I am a bit surprised that Global West's springs are that soft, it is not "too" soft, but I would have guessed that they would be firmer than that. Anyone know off the top of their head what the spring rates for the Hothckis goodies are?

Mark

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post #5 of 10 (permalink) Old Aug 14th, 03, 08:01 AM
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1-800 Call Tom. Chicane 67 on this board can hook you up (pun intended) with a proper set of springs for your ride, it'll depend alot upon what you want to do with the car. I run the full Hotchkis setup on my 69, and am pretty happy with it so far. I drive it on the street alot, it does not beat me up, and it handles very, very well. Not a bad setup for ordering out of a catalog, but if you want something more elegant, go with Tom's suggestions. He is wise beyond his years with these cars.

That said, I am a bit surprised that Global West's springs are that soft, it is not "too" soft, but I would have guessed that they would be firmer than that. Anyone know off the top of their head what the spring rates for the Hothckis goodies are?

Mark

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post #6 of 10 (permalink) Old Aug 14th, 03, 08:40 AM
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Hotchkis says theirs are 175. Tom reported they're 175-185#. After talking with Tom, I'm going for 650 front/260 rear. I also have the GW del-a-lums front/back. I think the reduced stiction works well with the increased rates.

Rick Dorion
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post #7 of 10 (permalink) Old Aug 14th, 03, 09:38 AM
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Good point on the bushings, I still have the poly units on mine and try to keep them greased. Not real good if they bind, especially the front ones! They seem to be good on my car so far though, quiet too.

Global West now offers rear springs with spherical rod ends in the front eyes. I can see where this could help in terms of pure rotation, but they claim that it helps in lateral motion as well. I am still puzzled by this, it does not make sense to me geometrically, the only thing I can see it doing is allowing the forward portion of the spring (i.e. from the leaf mount on the dif - forward) to deform helically. I don't see the benefit, leafs are super rigid laterally already. Any thoughts? Another cool marketing ploy?

Mark

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post #8 of 10 (permalink) Old Aug 14th, 03, 01:34 PM Thread Starter
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I just got off the phone with Hotchkis and part number 1906f(big block front springs) are rated at 670 lbs and part number 2407c(rear leafs)are rated at 150-180lbs.
Kelvin

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post #9 of 10 (permalink) Old Aug 14th, 03, 06:08 PM
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Multi -leaf springs have a rising rate, so the more weight put on them, the stiffer they get. the Hotchkis three leaf spring has a very stiff bottom leaf that acts sort of like a traction bar. It rides nice though.
David

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post #10 of 10 (permalink) Old Aug 15th, 03, 04:28 AM
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Quote:
Originally posted by davidpozzi:
Multi -leaf springs have a rising rate, so the more weight put on them, the stiffer they get. David
David, is this because of the friction between the layers? That's the only way I can see the spring rate rising with load....
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