Where To Get Coil Spring Rates Measured

**GUN METAL** · 14-07-2006, 12:49 PM

Just wondering if anone preferably in Syd has the facility to accuratly measure the spring rates in suspension coil springs.

I have built a dodgy machine using bathroom scales and a scale rule but its too bloody dodgey and i will probly end up with a coil spring imbedded in my head if i try it again

As all the local suspension joints say you want to measure WHAT ????

Suggestions anyone ?

**kingmick** · 14-07-2006, 12:59 PM

yep beside the fact you need a test spring of a known weight to make sure it reads right

that them into a good suspension place!

**Pube** · 14-07-2006, 09:31 PM

allsprings at liverpool have the machine that will do the job.

**TurboRA28** · 14-07-2006, 10:30 PM

Noltec at Thornleigh can

**Big T** · 15-07-2006, 03:29 AM

How precise does it need to be? You can use an online calculator using a few basic measurements:

http://not2fast.wryday.com/chassis/spring_rate.shtml

Note this only works for linear springs, not progressive.

Eddie.

**GUN METAL** · 17-07-2006, 10:38 AM

Pube and Turbo thanks for the info

Big T, thanks for the calculator, i have a couple of these as well and have used this one as well

I have got a pretty good idea using both the spring calculator and my home made tester (but got inconsistent results + - 20 %) i am keen to get a more accurate idea before i start changing spring rates.