spiderwebfx Posted February 10, 2017 Share Posted February 10, 2017 S12 has S14 front coilovers with 8kg springs. damper on lowest setting. Rear has adjustable collar spring seats with I think 6 or 8kg springs and some random Colorado shocks (not damper adjustable). The front end seems to stiff with the small amount of driving it's done so I'm looking at alternative options. Wondering if I should drop down to 6kg/4kg springs? (or even 7kg/5kg if available) It'll mainly be used on road with the odd track day. Kurb weight is 1170kg standard. But SR20DET is roughly 25 kg's heavier than factory motor and has had nothing in terms of taking weight away from the car done. (This might help to reference peoples opinions on there setups) Quote Link to comment Share on other sites More sharing options...
sheepers Posted February 10, 2017 Share Posted February 10, 2017 8 kg is getting up a bit but not super stiff. i would try a 5 or 6kg and see how that feels. if its still to stiff maybe look at some different shocks because it really comes down to how they preform that determines how the front end will feel. just for an experiment you could wind the shock rates up and see how it feels? im guessing they are rebound adjusting only? you'll find that you only really "feel" the shock difference right at the end of the adjustment, most of them have very little change until you get almost to full hard. try fucking around with the shock at a half turn from full hard and see what happens. Quote Link to comment Share on other sites More sharing options...
a.craw4d Posted February 12, 2017 Share Posted February 12, 2017 Been reading a bit on spring rates lately for my silvia (s13), fairly similar weight I think. 6kg front and 4kg rear seems to be quite common for street use. As sheepers said though I think shock rates plays a very big role. Quote Link to comment Share on other sites More sharing options...
spiderwebfx Posted February 12, 2017 Author Share Posted February 12, 2017 Cheers for the help. I'll play with the shocks a bit more when I have the car at work and can drive it around the back yard. Rear shocks aren't adjustable at all but they probably don't help as they're 4x4 shocks. Quote Link to comment Share on other sites More sharing options...
cletus Posted February 12, 2017 Share Posted February 12, 2017 Have you done much open road driving? I have found,often that something that feels too stiff pottering around at 50 k gets better the faster you go 1 Quote Link to comment Share on other sites More sharing options...
Roman Posted February 12, 2017 Share Posted February 12, 2017 In my car I'm running 5kg and 3.5kg and find this is on the verge of what's good for driving on the street (Tyres start skipping off the road over undulations...) Possibly relates to my shocks as well though. 6&4 would be good I reckon. Quote Link to comment Share on other sites More sharing options...
smokin'joe Posted February 12, 2017 Share Posted February 12, 2017 have these for sale if you want something to play around with: could sharpen price if you wanted 2 sets. Quote Link to comment Share on other sites More sharing options...
spiderwebfx Posted February 12, 2017 Author Share Posted February 12, 2017 1 hour ago, smokin'joe said: have these for sale if you want something to play around with: could sharpen price if you wanted 2 sets. Hey I may be interested in the 4.6kg nismo ones. I'll have a look tonight and get back to you. Quote Link to comment Share on other sites More sharing options...
Rhyscar Posted February 17, 2017 Share Posted February 17, 2017 On 2/13/2017 at 10:48, Roman said: In my car I'm running 5kg and 3.5kg and find this is on the verge of what's good for driving on the street (Tyres start skipping off the road over undulations...) Possibly relates to my shocks as well though. 6&4 would be good I reckon. This is 100% shock issue. Good road feeling relies on 3 things; not shit tyres, shock control and weight transfer. For OP I think your suggestion of 6/4 would work well but agree with sheepers comments that it may not solve the issue. I've run really stiff Springs on the road in the past on a sub 1000kg car with relatively average shockage. A semi slick will make it feel 1-2kg softer than it actually is due to increased grip with more roll/weight transfer. I'm an advocate of buying the best shocks you can afford and everything else takes care of itself. Chuck a bilstein at it and suddenly turns into an awesome car to drive... 3 Quote Link to comment Share on other sites More sharing options...
spiderwebfx Posted February 22, 2017 Author Share Posted February 22, 2017 Thanks for all your guys feedback. I'm going to put the hunt for springs on hold and try find some rear shocks that are more suitable to the car. Based on your guys feedback, I think that is the best place to start. Quote Link to comment Share on other sites More sharing options...
spiderwebfx Posted March 29, 2017 Author Share Posted March 29, 2017 Quick update on this. Ended up getting some Tein 5kg rear springs. They made a HUGE difference. Looks like I had 8kg springs all round, which was most of the problem. I'm still waiting for some shocks to arrive to match my front ones. Once they show up I'll be getting some Tein 7kg springs to put in the front as well. That way the shocks match and the springs match. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.