| Coil Spring Rates |
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Front |
Front |
Rear |
Rear |
Front/ |
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Coil |
Wheel |
Wheel |
Coil |
Rear |
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Rate |
Rate |
Rate |
Rate |
Differential |
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| Stock setups |
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| 924 |
120 |
108 |
54 |
19 |
50% |
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| 944 |
140 |
126 |
126 |
23.5 |
100% |
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| 951 |
160 |
144 |
126 |
23.5 |
88% |
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| M030 |
175 |
158 |
175 |
25.5 |
111% |
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| Cup 1 |
410 |
369 |
335 |
30 |
91% |
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| User setups |
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| Racer1 |
210 |
189 |
149 |
24.5 |
79% |
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| Racer2 |
210 |
189 |
160 |
25 |
85% |
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| Racer3 |
250 |
225 |
254 |
28 |
113% |
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| Racer4 |
250 |
225 |
292 |
29 |
130% |
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| Racer5 |
260 |
234 |
189 |
26 |
81% |
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| 924b |
325 |
293 |
292 |
29 |
100% |
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| Racer12 |
325 |
293 |
335 |
30 |
115% |
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| Racer8 |
350 |
315 |
335 |
30 |
106% |
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| Racer7a |
350 |
315 |
382 |
31 |
121% |
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| Racer7b |
350 |
315 |
382 |
31 |
121% |
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| Racer9 |
400 |
360 |
292 |
29 |
81% |
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| Racer16a |
400 |
360 |
335 |
30 |
93% |
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| Racer16b |
400 |
360 |
335 |
30 |
93% |
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| Racer16c |
400 |
360 |
335 |
30 |
93% |
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| 924a |
400 |
360 |
335 |
30 |
93% |
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| Racer10 |
410 |
369 |
335 |
30 |
91% |
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| Racer13 |
450 |
405 |
335 |
30 |
83% |
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| Racer14 |
500 |
450 |
335 |
30 |
74% |
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| Racer15 |
550 |
495 |
553 |
34 |
112% |
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| Racer11 |
600 |
540 |
430 |
32 |
80% |
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| Racer27 |
700 |
630 |
430 |
32 |
68% |
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| Full coil overs |
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| Racer17 |
300 |
270 |
224 |
400 |
83% |
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| Racer6 |
350 |
315 |
308 |
550 |
98% |
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| Racer18 |
400 |
360 |
308 |
550 |
86% |
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| Racer19 |
550 |
495 |
364 |
650 |
74% |
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| Racer 24 |
600 |
540 |
246 |
440 |
46% |
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| Racer 26 |
800 |
720 |
224 |
400 |
31% |
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| Front coil - Rear Torsion bar
with Coil-over shocks |
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| Coil and |
Front |
Front |
Total Rear |
Torsion |
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Rear Coil-over |
Effective |
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| Torsion |
Advertized |
Effective |
Effective |
Bar |
Helper Spring |
Advertized |
Rate |
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| Combos |
Rate |
Rate |
Rate |
Rate |
Effective Rate |
Rate |
Differential |
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| Racer20 |
250 |
225 |
231 |
175 |
56 |
100 |
103% |
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| Racer 22 |
400 |
360 |
343 |
175 |
168 |
300 |
95% |
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| Racer
21 2 |
600 |
540 |
358 |
50 |
308 |
550 |
66% |
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| Racer 22 |
450 |
405 |
304 |
220 |
84 |
150 |
75% |
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| Racer 23 |
400 |
360 |
287 |
175 |
112 |
200 |
80% |
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| 1 |
Cup springs are progressive rate springs
~150-450# |
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| 2 |
Turned down torsion bars effectivly eliminating
their usefullnes. (It's a class
thing) |
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| Note: Many things effect the chosen rates. Weight reduction front or rear, Sway bar
rates, Shock |
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| dampening
rates and more. Also, drivers
preference and driving style play a big part. |
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