Spring Rate Vs Wheel Rate

[SM]

Extracting from this thread (please discuss findings here)
http://www.sxoc.com/vbb/showthread.php?t=201574

Here is a basic guide spreadsheet to how spring rates effect wheel rate, and what springs are suitable for what application.

Credit must be give to DaveV (http://www.sxoc.com/vbb/member.php?u=1509)for this :thumbs:

[SM]

Little help and I've got it visible here too ...


kg/mm lbs/mm lbs/in CPM CPM
725 575 669 589
Jez's weights
Std F 2 4.4 112 74 77
Std R 2 4.4 112 83 82

Tein F 3.8 8.36 212 102 106
Tein R 3.5 7.7 196 110 108

S-Tune F 5.3 11.66 296 120 125
S-Tune R 4.5 9.9 251 124 123

CO F 6 13.2 335 128 133
CO R 5 11 279 131 129

CO F 8 17.6 447 147 154
CO R 6 13.2 335 143 142

CO F 10 22 559 165 172
CO R 8 17.6 447 166 164

CO F 12 26.4 671 181 188
CO R 10 22 559 185 183


Traditional Comfort Fast Rd Bumpy Circuit Smooth Circuit
CPM Targets <80 80-115 115-145 >145

[MDB]

Hmmm. This makes food for thought.

By that reckoning I shouldn't really have coilovers at all. Does this take into account how adjustable the damping is, or is that not really a consideration?

[Dai D]

So whats wheel rate Kev?

[DanS14]

I've been recommended this book for the above. Bit pricey but apparently a lot more in depth than the previously mentioned manuals

[DanS14]

http://www.amazon.co.uk/exec/obidos/ASIN/0768000505/qid%3D1144099100/sr%3D8-1/ref%3Dsr%5F8%5Fxs%5Fap%5Fi1%5Fxgl/202-3001563-3166259#product-details

I've been recommended the above book for suspension. Supposed to be more in depth than the others mentioned.:thumbs:

[Dai D]

Could you explain what wheel rate is please Kev.

[andyf]

For those of you with Autospeed accounts, there is an editorial about this subject.

http://autospeed.drive.com.au/cms/A_2904/article.html

[Streetmekanik]

Does tyre profile and damper adjustment (like KYB AGX or Coilovers) effect the rate? If so, how much?

[Loruoo36]

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