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Old 05-20-2009, 11:52 PM   #1
jamison67
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racing springs

i was looking into the adjustiblecoilovers from cosmo racing,the sprig rate on them is 8kg in the frt and 10 kg in the back,,,,,what i want to now is ,is that a stiff spring causei want to put som real deep dish rims on here and i dont want it to rub on the outside lip,,,,will these do the trick for me,,,,if not what do u guys reccomend for me

thanks
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Old 05-21-2009, 07:04 PM   #2
adam325i
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Take a look at this, higher the number stiffer the springs are.

http://www.e30tech.com/forum/showthread.php?t=40472
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Old 05-21-2009, 09:11 PM   #3
craz azn
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kg/mm to lbs/in

16 = 896
15 = 840
14 = 784
13 = 728
12 = 672
11 = 616
10 = 560
9.0 = 504
8.5 = 476
8.0 = 448
7.5 = 420
7.0 = 392
6.5 = 364
6.0 = 336
5.5 = 308
5.0 = 280
4.5 = 252
4.0 = 224
3.0 = 168
2.0 = 112
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Old 05-21-2009, 09:40 PM   #4
matty.dc
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does anybody know the apex spring rate for the e30's? i cant find it anywhere.
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Old 05-21-2009, 11:47 PM   #5
e30_kid89
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^^^ It's because it's that bad... I think its the same or a bittt stiffer than stock.
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Old 05-22-2009, 01:28 AM   #6
matty.dc
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lol thank god the roads out here aren't too bad
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Old 05-22-2009, 04:47 AM   #7
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Don't run race rates on a street car. You're just posing if you do. Unless you know what you are doing and very carefully choose a rate for your driving style and roads.

A good street setup will see you right. Get coil overs by all means, but choose a sensible rate and just flare the guards.
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Old 05-26-2009, 07:43 PM   #8
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so what r ur recommondations ,,,,do u guys think that the cosmos coilovers will do the trick,,,,,according to that list of spring rates they seem to be pretty stiff (the higher the pound the stiffer the rate is)
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