How Do I Tell What My Spring Rates Are?

[tacker]

Hi SK,

Just back from Angola and have measured the springs as you suggested.

Front

top 118 od

bot 113 od

spring 14

coils 7 total

2 progressive coils

rear

top 113 od

bot 100 od

spring 13.5

coils 8 total

2 progressive coils.

Ps also found the front sway bar is broken not sure how long that has been like that and i guess would not be helping with the loose rear during mid corner.

King Regards

Edited September 5, 2006 by tacker

[Sydneykid]

Hi SK,

Just back from Angola and have measured the springs as you suggested.

Front

top 118 od

bot 113 od

spring 14

coils 7 total

2 progressive coils

rear

top 113 od

bot 100 od

spring 13.5

coils 8 total

2 progressive coils.

Ps also found the front sway bar is broken not sure how long that has been like that and i guess would not be helping with the loose rear during mid corner.

King Regards

Front is ~400 lbs per inch (7.1 kg /mm)

Rear is ~370 lbs per inch (6.6 kg/mm)

Yep, a broken front bar is not good for rear end stability.

cheers

[tacker]

Cheers SK,

If your ever in this part of the world you have a night of free beers.

I am thinking that i still might need some softer springs in the rear, what would your recommend?

Regards

[Richo]

Hi SK,

I have some measurements here, hope you can help me out to figure the spring rates.

I.D: 90/79

O.D: 12

# : 6.650

Thanks SK

[twisted]

Can you work out the fronts for me SK,

14mm dia

150mm internal diameter

4 2/3 turns

Cheers

[d1a31]

hey SK when you get a chance could you work out my rates, my original post with details is at the bottom of page 6, many thanks cheers.

[Richo]

bump

[Sydneykid]

Hi SK,

I have some measurements here, hope you can help me out to figure the spring rates.

I.D: 90/79

O.D: 12

# : 6.650

Thanks SK

Sorry for the delay

270 lbs per inch (4.8 kg/mm)

Cheers

[Sydneykid]

Can you work out the fronts for me SK,

14mm dia

150mm internal diameter

4 2/3 turns

Cheers

Sorry for the delay

180 lbs per inch (3.2 kg/mm)

cheers

[Sydneykid]

Hey sydneykid im getting new coilovers for my cefiro soon but would like to know what rates i have at the moment, these are the coilovers that it arrived in oz with, measurements are

front

coil OD - 85mm top and bottom

wire OD - 12mm

No of coils - 7.9

rear

coil OD - 85mm top and bottom

wire OD - 11mm

No of coils - 7.25

measurements taken on the car without verniers so may be a bit rough, thanks heaps

Sory for the delay, I missed this one.

Front is ~ 500 lbs per inch (8.9 kg/mm)

Rear is ~ 415 lbs per inch (7.4 kg/mm)

cheers

Edited September 18, 2006 by Sydneykid

[Richo]

Finally, about time! ;....just kidding mate

thanks SK, you are a champion!

Cheers

[twisted]

Sorry for the delay

180 lbs per inch (3.2 kg/mm)

cheers

cheers SK

[SkylineGTT25]

Couple to calculate please -

Coil ID = 98/66 mm

Wire OD = 11.75 mm

# of Coils = 7.25 turns

Coil ID = 96/71 mm

Wire OD = 12 mm

# of Coils = 7.75 turns

Thanks

[SkylineGTT25]

Bump - Gary, thought you might has missed the above

[black_car]

Hi Gary,

Got some measurements...

front:

WD: 13.8mm (???)

ID: 155mm

turns: 4.75

rear:

WD: 11mm

ID: 80mm

turns 7.25

cheers

Ben

[Sydneykid]

Couple to calculate please -

1. Coil ID = 98/66 mm

Wire OD = 11.75 mm

# of Coils = 7.25 turns

2. Coil ID = 96/71 mm

Wire OD = 12 mm

# of Coils = 7.75 turns

Thanks

1. 235 lbs per inch (4.3 kg/mm)

2. 225 lbs per inch (4.0 kg/mm)

cheers :

[Sydneykid]

Hi Gary,

Got some measurements...

front:

WD: 13.8mm (???)

ID: 155mm

turns: 4.75

rear:

WD: 11mm

ID: 80mm

turns 7.25

cheers

Ben

Front = 160 lbs per inch (2.8 kg/mm)

Rear = 200 lbs per inch (3.6 kg/mm)

cheers

[gdz34]

Coil ID = 100/105 mm

Wire OD = 13 mm

# of Coils = 9.5/10 turns

Spring rate = ???

Thanks ...

[Beer Baron]

Hi gary,

I've got one for you.

Rears:

coil OD 91mm

wire OD 13mm

coils 9.4

length (lightly captive) 247mm

Fronts:

coil OD 90mm

wire OD 13mm

coils 7.75

length (lightly captive) 190mm

thanks very much Gary.

[Beer Baron]

c'mon gary. Put me out of my misery! I'm dying to know!!! hehe.

thanks mate.