West

In order to convert kg/mm to lb/in do the following. Multiply the kg/mm amount by 56. So if you kg/mm spring rate is 6 kg/mm Front and 5 kg/mm Rear your lbs/in would be 336 lb/in Front and 280 lb/in Rear. Pretty Simple.

Below is a archive of Spring Rates for various stock and aftermarket springs for the s13 and s14. Enjoy, Please post any additions you may have to this list. Thanks!

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s13 Spring Rates

Stock '92 (from FSM)
* * *Front & Rear: 102 lb/in * *
* * *Front & Rear: 110 lb/in w/ HICAS

Eibach ProKit
* * *Front: *114-200 lb/in | -1.8"
* * *Rear: * 114-148 lb/in | 1.6"

Eibach Sportlines
* * *Front: *137-230 lb/in | 2.2"
* * *Rear: * 128-200 lb/in | 2.1"

Suspension Techniques: 1.3" drop
* * *Front: *206 lb/in | 1.3"
* * *Rear: * 155 lb/in | 1.3"

5Zigen R-Rate
* * *Front = 2.4-5.2 kg/mm | 134-291 lb/in | 1.3"
* * *Rear = *1.9-5.0 kg/mm | 106-280 lb/in | 1.1"
* * *
Tein HA
* * *Front = 6 kg/mm | 336 lb/in
* * *Rear = *5 kg/mm | 280 lb/in

Tein HE
* * *Front = 8 kg/mm | 448 lb/in
* * *Rear = *6 kg/mm | 336 lb/in

Tein RA *
* * *Front = 10 kg/mm | 559 lb/in
* * *Rear = * *8 kg/mm | 448 lb/in

Tein RE
* * *Front = 10 kg/mm | 559 lb/in
* * *Rear = * *8 kg/mm | 448 lb/in

Tein RS
* * *Front = 10 kg/mm | 559 lb/in
* * *Rear = * *8 kg/mm | 448 lb/in

Tein FLEX
* * *Front = 5 kg/mm | 280 lb/in
* * *Rear = *4 kg/mm | 224 lb/in

Tein S.Tech
* * *Front = 3.2 kg/mm | 179 lb/in
* * *Rear = *2.9 kg/mm | 162 lb/in

Zeal Function B-6
Sreet Spec:
* * *Front = 6 kg/mm | 336 lb/in
* * *Rear = 5 kg/mm *| 280 lb/in
Circuit Spec:
* * *Front = 8 kg/mm | 448 lb/in
* * *Rear = 7 kg/mm *| 392 lb/in

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s14 Spring Rates

kg/mm DR21
* * *Front = 4.8-3.0 kg/mm | 269-168 lb/in
* * *Rear = *4.0-2.8 kg/mm | 224-157 lb/in

kg/mm DR Racing
* * *Front = 6.6-3.2 kg/mm | 370-179 lb/in
* * *Rear = *5.2-2.4 kg/mm | 291-134 lb/in

RSR Hard Springs
* * *Front = 5.0 kg/mm | 280 lb/in
* * *Rear = *4.2 kg/mm | 235 lb/in

TANABE SuperH
* * *Front = 3.0 kg/mm | 168 lb/in | -28mm
* * *Rear = *4.0 kg/mm | 224 lb/in | -9mm

TRUST Sport Springs
* * *Front = 2.6 kg/mm | 146 lb/in | -25mm
* * *Rear = *2.6 kg/mm | 146 lb/in | -25mm

HKS Super Sports
* * *Front = 4.14 kg/mm | 232 lb/in
* * *Rear = *3.46 kg/mm | 194 lb/in

Tein HA kg/mm
* * *Front = 6 kg/mm | 336 lb/in
* * *Rear = *5 kg/mm | 280 lb/in

Tein HE
* * *Front = 8 kg/mm | 448 lb/in
* * *Rear = *6 kg/mm | 336 lb/in

Tein RA
* * *Front = 10 kg/mm | 559 lb/in
* * *Rear = * *8 kg/mm | 448 lb/in

Tein RE
* * *Front = 10 kg/mm | 559 lb/in
* * *Rear = * *8 kg/mm | 448 lb/in

Tein RS
* * *Front = 10 kg/mm | 559 lb/in
* * *Rear = * *8 kg/mm | 448 lb/in

Tein FLEX
* * *Front = 6 kg/mm | 336 lb/in
* * *Rear = *5 kg/mm | 280 lb/in

Tein S.Tech
* * *Front = 4.8 kg/mm | 269 lb/in
* * *Rear = *4.4 kg/mm | 246 lb/in

Zeal Function B-6
Sreet Spec:
* * *Front = 6 kg/mm | 336 lb/in
* * *Rear = *4 kg/mm | 224 lb/in
Circuit Spec:
* * *Front = 8 kg/mm | 448 lb/in
* * *Rear = *6 kg/mm | 336 lb/in

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__________________
Mark West
Zilvia.net - Toyobaru.net - Mac101.net - NapkinSketch.com

RWDForums.com - Boostaholic.org - DemotivationalBlog.com

Danio

Anyone know the spring rates for stock S14s, base and SE?

Archangel

S-14

Apexi N-1 Coilovers
* * Front = 8 kg/mm | 448 lb/in
* * Rear = *6 kg/mm | 336 lb/in

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White 98 s14

DuffMan

This just in: &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=''>

Whiteline Springs, parts 70055 and 70049

Front: 155Lbs/in | 35mm
Back: 165Lbs/in | 40mm

LanceS13

S13

KGMM S21 Sport
front: 3.2 kg/mm | 179.2 lb/in
rear: 2.6 kg/mm | 145.6 lb/in

KGMM S21 SuperSport
front: 4.6 kg/mm | 257.6 lb/in
rear: 3.8 kg/mm | 212.8 lb/in

KGMM S21 Racing
front: 6.6 kg/mm | 369.6 lb/in
rear: 5.2 kg/mm | 291.2 lb/in

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1992 240SX Fastback #47 DSP
MS SCCA
RX-7 ITS Project FOR SALE

AKADriver

Stock 1990 (from FSM):
Front & Rear: 112 lb/in (base)
Front & Rear: 123 lb/in (sports package)

__________________
2000 Miata
When changing your brake fluid, remember to dispose of any excess fluid properly. It might be inconvenient, but there's no excuse for not drinking it all.

hurleyboi514

RS*R race springs
5.00kg F and 4.5kg R

__________________
http://www.hightach.com/sigs/kensig1.jpg
HighTach Motorsports

sushiplugger

Linear Springs for S13

Tokico
Spring Rate - F : 3.0 kg/mm | 169 lbs/in
Spring Rate - R : 2.7 kg/mm | 150 lbs/in
Ride Height - F : -1.0 (expect -1 ~ 2 inch range)
Ride Height - R : -1.0 (expect -1 ~ 2 inch range)

RS-R Down
Spring Rate - F : 3.0 kg/mm | 167 lbs/in
Spring Rate - R : 3.0 kg/mm | 167 lbs/in
Ride Height - F : -1.5 est. (95-98 240sx drop)
Ride Height - R : -1.2 est. (95-98 240sx drop)

Tein S-tech (I think the ones in the first post are incorrect - I got these from Tein's website)
Spring Rate - F : 3.7 kg/mm | 207 lbs/in (MFG #'s)
Spring Rate - R : 3.2 kg/mm | 179 lbs/in (MFG #'s)
Ride Height - F : -1.5" (MFG #'s)
Ride Height - R : -1.2" (MFG #'s)


Progressive Springs for S13

H & R Sport
Spring Rate - F : 2.0~2.08kg/mm | 112~116 lbs/in
Spring Rate - R : 2.5~2.6kg/mm | 140~145 lbs/in
Ride Height - F : -1.3" (MFG #'s)
Ride Height - R : -1.3" (MFG #'s)

Strider

S13

Nismo S-Tune (not height adjustable)
_ _ _Front: 5.3 kg/mm | 296 lb/in
_ _ _Rear: 3.9 kg/mm | 218.4 lb/in

Nismo N1
_ _ _Front: 8/10/12 kg/mm | 448 - 672 lb/in
_ _ _Rear: 8 kg/mm | 448 lb/in

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I refuse to answer that question on the grounds that I don't know the answer.