 Rear springs ID, what are they? |
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| goose2 |
 Jun 3 2005, 04:57 PM
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#1
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Senior Member  Group: Members Posts: 976 Joined: 30-March 05 From: Eugene, Oregon Member No.: 3,847 Region Association: Pacific Northwest  |
I took these off my six parts car. The springs are painted black with a red paint mark on one coil about in the middle. Any guesses or will I have to take them to the spring guy to measure them? Can they be rated without taking them off the Konis?
Thanks Attached image(s) 
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| Eric_Shea |
Jun 3 2005, 09:08 PM
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#2
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PMB Performance Group: Admin Posts: 19,274 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains  |
Hard to tell but the ones I've seen with orange/red paint have been aftermarket 140lber's.
Factory used "yellow" marks for 914-6 and "green" for 914-4. They matched them and use anywhere from 1 to 3 marks on each (each spring would have had the same number of marks). I have 140lb. springs with the orangish/redish markings. |
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| goose2 |
Jun 3 2005, 09:19 PM
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#3
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Senior Member Group: Members Posts: 976 Joined: 30-March 05 From: Eugene, Oregon Member No.: 3,847 Region Association: Pacific Northwest |
Thanks Eric, but they weigh a LOT less than that! (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)
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| goose2 |
Jun 3 2005, 09:21 PM
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#4
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Senior Member Group: Members Posts: 976 Joined: 30-March 05 From: Eugene, Oregon Member No.: 3,847 Region Association: Pacific Northwest |
sorry, just can't resist being a smart-ass sometimes
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| Eric_Shea |
Jun 4 2005, 08:19 AM
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#5
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PMB Performance Group: Admin Posts: 19,274 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains |
Yuk, yuk, yuk... (IMG:http://www.914world.com/bbs2/html/emoticons/slap.gif)
(IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) |
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| ArtechnikA |
Jun 4 2005, 12:30 PM
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#6
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
CD's factory coil spring data pagetaking that data, and applying the coil spring formulas to what you've got, should get you in the ball park...
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| goose2 |
Jun 4 2005, 07:58 PM
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#7
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Senior Member Group: Members Posts: 976 Joined: 30-March 05 From: Eugene, Oregon Member No.: 3,847 Region Association: Pacific Northwest |
Thanks for the chart, but it only goes to 90#. Am I missing something?
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| ArtechnikA |
Jun 4 2005, 08:21 PM
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#8
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
that is the chart for FACTORY springs.
but using that data, and the formulas that have been posted here several times for computing spring rate from wire diamter, coil diameter, and free length, should give you a handle on estimating what you've got. |
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| goose2 |
Jun 4 2005, 08:37 PM
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#9
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Senior Member Group: Members Posts: 976 Joined: 30-March 05 From: Eugene, Oregon Member No.: 3,847 Region Association: Pacific Northwest |
Aha....interpolate and calculate....I can do that. Thanks
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