s2kshepard

My car is equipped with KWv3 coilovers and karcepts sway bars. The car still uses stock kwv3 457lb springs (8k equivalent). It is a track only car and I am finding that I am hitting my splitter quite a bit under braking (compounded by the fact that I would like to lower my splitter for better front grip). The car is driving fairly balanced, if understeering due to the rear aero overpowering the front aero, but I would like to reduce dive to support a lower splitter primarily.

Any idea what springs I may want to go to? Car is track only, but I understand KWv3 can't really be revalved. Not concerned with street ride quality, I have no interior/stiff motor mounts/etc.

s2kshepard

255 square NT01s on 17x10 wheels if it matters. Mostly I just want to go stiffer so I don't instantly break my splitter when I lower it.

spaded.racer

What size are the current springs(length and O.D.)?

roel03

KWV3 uses 2.5" springs in a 6" length.

General rule of thumb is to stay within 20% of spring rate without revalving. You may want to look into other coilovers since it sounds like you want to go plenty stiff.

spaded.racer

Super common size if he does decide to play around a bit. Should be able to find used sets fairly easy.

afzan

KW doesn't use 2.5" they use 60mm

2.5" and 6" length will work, I used Eibachs along with a 2.5" -> 60mm perch adapter to make them sit a bit better but I don't think the valving coped well with the 650F/600R I was running -- I ended up upgrading later

spdracerut

Honestly, I would invest in a new setup. I'm on Clubsports running 12k/10k front/rear and it's still soft for a pure track car. It's my mixed use car/fun weekend car, so it works for me. But it's not optimal for a track-only car. Track only guys seem to be running around 16k springs for which you'd have to get specific valving. That's with aero and 255 wide tires of the ultra sticky 'street' tire variety.

s2kshepard

WTT kwv3 + cash for penskes. I'll add cash and a hug.

B serious

I think I still have a marketplace post with my 12K/10K H&R's that I wanna sell.

They're the EXACT size you need for V3's. I bought them for my V3's.

60mm ID, 140mm height.

s2kshepard

I don't see it - how much would you liked?