Silchuki14

Hi, recently bought some Zeal Basic Coilovers and they came with Swift Springs. I can't find how to know the spring rate of them. It's written "S-w-i-f-t 140" on the front Springs and "S-w-i-f-t 100" on the rear ones. I supose it's 14K Front and 10K Rear but I wanna be sure I'm correct.

Thanks

Spids5

iTrader: (40)

That is correct.

Silchuki14

Thanks!

Spids5

iTrader: (40)

No problem. If you want to know all the specs on the springs it should be in this pdf.
http://www.swiftsprings.com/fi...s.pdf

PatrickGSR94

iTrader: (1)

holy crap that is stiff, 784 lb/in front and 560 lb/in rear

Silchuki14

Does anyone have a equation or a chart that we can use to convert those "K" in lbs/in???

Ex: 784 lb/in front and 560 lb/in rear <-> 14K Front and 10K Rear

Can't say anything about them for now cause there not on the car yet.

Thanks

PatrickGSR94

iTrader: (1)

1 kg/mm = 55.9974 lb/in. You can just multiply by 56 to get the lb/in number.