Spring rate this

[CustomS14A]

I found some JDM springs but the only spring rate that i found on them is 350f 250 r what would this be in Kg

[mrmephistopheles]

if that were in Kg/mm, that would be an awesome spring rate. for a mack truck.

That's lbs/in

[CustomS14A]

It doesn' say but it has to be in lbs but by the look of the spring there are progressive rate springs they lower 2inF 1.75inR

[mrmephistopheles]

no, i'm TELLING YOU it's lbs. Extreme drift coilover setups are usually 18/16 kg/mm (F/R) or around there.. 350lbs/in and 250lb/in sounds like.. Eibach sportlinish. Or thereabouts. (edited by Kevin: No, that's wrong, I'm dumb.)
They lower 2 inches/1.75 inches?

This doesn't sound like a "JDM" spring if it's measured in lbs/in and inches. Japanese springs are almost always measured by kg/mm and mm lowering.

[CustomS14A]

ok there kg/mm springs there web page is in jp 50mm down in the front 40 in the rear with 6.6F 5.2R

[mrmephistopheles]

kg/mm race springs, huh?
they're not progressive then.
hahah great springs.. get ready for a stiff ride.

[mrmephistopheles]

ps.. I really really hate your signature.

[dvdevo]

i hate his signature too.

[the240sxer95]

i also hate it

[West]

6.25kg / 4.47kg is your setup. Could be anything. Typically rip off cheap-o springs or "coilovers" are 350/250 or 450/350 since they have generic springs. They are progressive if the the coils are woven closer/more together tword the top or bottom, or if they are fancy the coil can get thinner/taper off at the top or bottom.

[SirWarrior]

55.xx lbs/in = 1kg/mm

[CustomS14A]

You guys happy :)

[Var]

divide by 55.9

[mrmephistopheles]

You guys happy :)

you have NO idea.