Jump to content
SAU Community

How Do I Tell What My Spring Rates Are?

Sydneykid
 Share

Recommended Posts

Sydneykid Grand Master

Sydneykid

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

thanks mate. :)

Sorry, I am not at my engineering computer, I will do it as soon as I get home tonight.

:P cheers :P

  • Replies 378
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Posted Images

Sydneykid Grand Master

Sydneykid

Posted
  • Author
Posted
Coil ID = 100/105 mm

Wire OD = 13 mm

# of Coils = 9.5/10 turns

Spring rate = ???

Thanks ...

135 lbs per inch (2.4 kg/mm) if it 9.5 turns and 125 lbs per inch (2.2kg/mm) if its 10 turns.

:D Cheers :(

Sydneykid Grand Master

Sydneykid

Posted
  • Author
Posted (edited)
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.

Sorry for the delay, I haven't been at my home office PC since last Thursday.

Not too bad;

Rears are 185 lbs per inch (3.3 kg/mm)

Fronts are 245 lbs per inch (4.4 kg/mm)

:D Cheers :(

Edited by Sydneykid
Beer Baron Grand Master

Beer Baron

Posted
Posted

woah! that is a long way off what i thought. maybe i measured something wrong, but i'm pretty sure i wasn't legless when i measured.

thanks mate. :(

Sydneykid Grand Master

Sydneykid

Posted
  • Author
Posted
woah! that is a long way off what i thought. maybe i measured something wrong, but i'm pretty sure i wasn't legless when i measured.

thanks mate. :P

OK, ignore that. I just noticed you measured coil OD not ID. I will redo them tonight, sorry.

:( cheers ;)

Sydneykid Grand Master

Sydneykid

Posted
  • Author
Posted
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.

Lets try that again, using the correct ID this time

Rear = 440 lbs per inch (7.9 kg/mm)

Front = 565 lbs per inch (10.1 kg/mm)

My suggestion for a cheap fix, stick the rears in the front and buy some 250 lbs per inch (4.5 kg/mm) rears.

:D Cheers :(

  • 2 weeks later...
SkylineGTT25 Contributor

SkylineGTT25

Posted
Posted

Gary, couple more please -

Coil ID = 102/88.5 mm

Wire OD = 12 mm

# of Coils = 6.1 turns

Spring rate = ???

Coil ID = 102/92 mm

Wire OD = 13 mm

# of Coils = 8.9 turns

Spring rate = ???

Coil ID = 99/68 mm

Wire OD = 12 mm

# of Coils = 7.25 turns

Spring rate = ???

Thanks

Sydneykid Grand Master

Sydneykid

Posted
  • Author
Posted
Gary, couple more please -

Coil ID = 102/88.5 mm

Wire OD = 12 mm

# of Coils = 6.1 turns

Spring rate = 225 lbs per inch (4kg/mm)

Coil ID = 102/92 mm

Wire OD = 13 mm

# of Coils = 8.9 turns

Spring rate = 170 lbs per inch (3kg/mm)

Coil ID = 99/68 mm

Wire OD = 12 mm

# of Coils = 7.25 turns

Spring rate = 245 lbs per inch (4.4kg/mm)

Thanks

:P cheers :(

  • 1 month later...
Sydneykid Grand Master

Sydneykid

Posted
  • Author
Posted
Coil ID = 66mm / 96mm

Wire OD = 13mm

# of Coils = 8.5 turns

Just a set of std fronts for an r32. Just like to know what they are rated at ;)

275 lbs/inch (4.9 kg/mm)

Which isn't standard R32GTR front, maybe check the dimensions again.

:P cheers :)

Sydneykid Grand Master

Sydneykid

Posted
  • Author
Posted
r32 gtst springs they are. The previous owner had them on my car to put the car at std height.

What would this pair be good for? (besides raising the car up :P)

That's an OK front rate for a GTR that sees a bit of track work, would need some decent shocks to control it. From what you are saying the height might be the problem. Some Bilsteins with the additional circlip grooves would handle the rate and then the height could be fixed using the lower grooves. But the Whiteline springs are only $144 a pair on the Group Buy and they are the right rate and height.

:) cheers ;)

  • 4 weeks later...
insanity Rising Star

insanity

Posted
Posted

I have two sets of springs for you to check out please.

First set:

Front: Coil ID: 116mm

Wire OD: 13mm

# of coils: 6.5

Rear: Coil ID: 90mm

Wire OD: 13mm

# of coils: 8.125

second set:

Front: Coil ID: top 103mm - bottom 106mm

Wire OD: 12mm

# of coils: 6.5

Rear: Coil ID: top 70mm - bottom 65mm (this spring starts small, tapers out, then tapers in again)

Wire OD: 12mm

# of coils: 8.8

I appreciate your time. Hope to hear from you soon.

Regards,

Beau

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      WGNC34 - floor mats

      By GTSBoy · Posted

      I dunno about that as a blanket statement. Pitwork is Nissan's "Nissan genuine" thing, and for stuff like timing belts, I have found them to be excellent. Of course, for things like oil filters, you always use proper trusted brands anyway, not whatever the OEM has taken to using.
    • MBS206
      R34 Skyline climate control unit transistor

      By MBS206 · Posted

      Ahhhh... If you were putting 12V to the led in there, that's likely made it very unhappy. Chances are how you put power, was 12V across an LED that's meant to only have about 20mA through it at peak, and a forward voltage of about 1.8 to 2.4 volts. That circuit is likely only a 3V3 circuit, and will have a resistor in series with the led too. That's my guesstimate on that light, without having touched one.
    • Murray_Calavera
      Tein Circuit Master- rebuild worth it?

      By Murray_Calavera · Posted

      Another vote for installing them and see how you go.  I mean, you already own them, why would you not fit them? 
    • Duncan
      NC MX5

      By Duncan · Posted

      I have had too many of those over the years, my cars have a toolkit or at minimum a cheapy multi tool thing because its too easy to be snookered by some stupid plastic clip that stops you checking the battery terminal isn't loose.
    • Duncan
      WGNC34 - floor mats

      By Duncan · Posted

      Basically, if there is a part# on the nissan catalogue, it is a genuine part. There is a thing called "new old stock" which is stuff made years ago but never sold (or landfilled), but it is super hit and miss what you can buy. Other than some expensive Nismo stuff there is nothing new being made that suits these cars. The only time to be a little careful is (mostly in the US I think, but maybe Japan too), Nissan started rebranding some cheap crap maintenance parts like oil filters as "Pitworks"; stay away from them, if you are buying cheap just buy whatever the local car parts shop carries The three part numbers have an explanation on Amayama: 0V005 is auto, base style 0V015 is manual 0V505 is auto, hectic momo branded ones, maximum F&F points there!
×
×
  • Create New...