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S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


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Old 05-09-2013, 03:53 PM   #1
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s13 Help me choose coilovers

I'm currently running a set of Whiteline Group 4 coilovers in my S13 DD. They are 5kg front, 4kg rear, and I'm pretty happy with them. If anything, I'd say they are actually a tad more stiff than I'd like, but they're almost perfect. The car hasn't had much else done to it aside from poly bushings in the control arms and a few other places to help cope with the extra stiffness.

Unfortunately, one of the dampers was damaged and I need to replace it. It looks like nobody sells these anymore... plus I was beginning to doubt their sturdiness even before I had one fail.

That being said, I've decided to just upgrade all four corners and toss out the Whiteline. Unfortunately I just haven't been watching the DD market since I was expecting to have these Whitelines for a while, so I have no idea what all is out there. I was looking at some Stance coilovers for my track car but they don't seem to have anything more street-like available.

Cost is not really an issue here. I expect to spend $1500-2000 but am willing to go higher if it's worth it. The car is a daily driver, but I do take it offroad as I'm a ham radio operator and volunteer at local rallies. So my perfect suspension would eliminate body roll without making me slow to a crawl over speed bumps and potholes.

Let the recommendations commence, and thanks in advance for any advice!
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Old 05-09-2013, 03:58 PM   #2
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There is a thread on coilovers, if you use search you will find it. It has anything you want to know about coilovers.
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That's a one-way trip to understeer land...
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Maybe you should petition the retards who are paying 5k for an S13.

Need to adjust your idle?
http://zilvia.net/f/s-chassis/395413...-pictures.html
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Old 05-09-2013, 04:10 PM   #3
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Cost is not really an issue here. I expect to spend $1500-2000 but am willing to go higher if it's worth it. The car is a daily driver, but I do take it offroad as I'm a ham radio operator and volunteer at local rallies. So my perfect suspension would eliminate body roll without making me slow to a crawl over speed bumps and potholes.
You're asking too much from a bunch of street guys here. I'd rather go with stock suspension if I'm gonna take off roading. The online other shocks I know for offroading and street are custom valve Ohlins, but they're double your expected cost.
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Old 05-09-2013, 05:12 PM   #4
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There is a thread on coilovers, if you use search you will find it. It has anything you want to know about coilovers.
Thanks I couldn't find anything like that upon my initial searching but I think it's because I was restricting to the S-chassis subforum. I think I found the thread you're talking about now and will give it a good reading.

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You're asking too much from a bunch of street guys here. I'd rather go with stock suspension if I'm gonna take off roading. The online other shocks I know for offroading and street are custom valve Ohlins, but they're double your expected cost.
I will definitely look into Ohlins, those look really nice, thanks for the tip! $3-4k is not outside my price range, if they are worth it. I'm definitely not going with stock, I tried to tolerate that for a while but there's way too much body roll. Good dampers can work magic in this regard, hence why I'm ok with spending a lot to get what I'm looking for. People seem to refer to Ohlins as magic, and that's what I want: magic dampers.
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Old 05-09-2013, 07:24 PM   #5
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http://zilvia.net/f/tech-talk/154534...d-end-all.html

That guy, I don't have any info on your somewhat unique situation but there is a lot of info in there and maybe you could find something that sounds like what you want.
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That's a one-way trip to understeer land...
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Maybe you should petition the retards who are paying 5k for an S13.

Need to adjust your idle?
http://zilvia.net/f/s-chassis/395413...-pictures.html
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Old 05-09-2013, 08:18 PM   #6
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5k and 3k spring rates...shit, nothing off the shelf on the market is that soft. You're best bet would be contacting Fortune Auto and have them custom make you a set of 500s with those spring rates with Swift Springs.
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Old 05-09-2013, 08:41 PM   #7
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5k and 3k spring rates...shit, nothing off the shelf on the market is that soft. You're best bet would be contacting Fortune Auto and have them custom make you a set of 500s with those spring rates with Swift Springs.
My biggest concern of their dampeners don't have the travel of their dampeners long enough to the point where the OP end up tripoding like nuts on the bumpy dirt road.
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Old 05-09-2013, 08:48 PM   #8
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I would definetly try contacting Terry at Fortune Auto. They can build custom coilovers to your spec. Be it valving, springrates, and if I remember correctly they can do some custom struts as well to allow for a high rideheight.
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Old 05-10-2013, 01:47 PM   #9
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I have Stance GR+Pro with Swift springs that are 8k and 6k and I could not be happier. Great daily and track performance.
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Old 05-10-2013, 06:51 PM   #10
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I have Stance GR+Pro with Swift springs that are 8k and 6k and I could not be happier. Great daily and track performance.
His track is the part of the track you try and stay off of, the dirt.
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That's a one-way trip to understeer land...
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Maybe you should petition the retards who are paying 5k for an S13.

Need to adjust your idle?
http://zilvia.net/f/s-chassis/395413...-pictures.html
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Old 05-11-2013, 03:13 AM   #11
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Fortune autos!
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Old 05-14-2013, 11:58 AM   #12
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You need to take this question to Nissanroadracing.com

They are much more knowledgable, and despite the fact they are all about asphalt tracking, they will still help you. The Koni + Ground control springs with Custom Housings may be another option for you (which is discussed there heavily).
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Old 05-14-2013, 12:24 PM   #13
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KW V3's are 6/4 kg/mm. If you still have too much body roll then get thicker sway bars.

If you're looking to go better then I would talk to the people at Performance Shock Inc. I've bought stuff from them in the past and they seem to be very knowledgeable.
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Old 07-02-2013, 09:08 AM   #14
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I ended up going with a set of Fortune Auto 500's with 5kg/4kg and I'm very pleased with them so far! The dampers were actually even softer than I expected, I've cranked them up to 14/12 currently (24 being the stiffest setting) and may need to go even stiffer.

The dampers themselves are top quality. I'm very impressed. I'm having some trouble with wheel hop in the rear, but still dialing in the dampers so that may go away.

Thanks everyone for the advice!
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Old 07-02-2013, 12:38 PM   #15
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Quote:
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I ended up going with a set of Fortune Auto 500's with 5kg/4kg and I'm very pleased with them so far! The dampers were actually even softer than I expected, I've cranked them up to 14/12 currently (24 being the stiffest setting) and may need to go even stiffer.

The dampers themselves are top quality. I'm very impressed. I'm having some trouble with wheel hop in the rear, but still dialing in the dampers so that may go away.

Thanks everyone for the advice!
You're not going to get ride of the wheel hop. The dampening travel is much more limited on those coilovers compared to stock. I have friends who are in rally cross and they would say either go oem or oem replacements or penskies with 6 inch travel.
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Old 07-02-2013, 12:45 PM   #16
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Wheel hop can also be related to worn subframe/diff bushings...

Suprised you went FA. There was a set of Ohlins and a set of Motons both from Pikes Peak cars fs on NRR recently.

Good call on the Konis. Been trying to get a set of those myself.... Housings are Hard to come by nowadays.

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Old 07-08-2013, 08:35 PM   #17
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Quote:
Originally Posted by Pergatory View Post
I'm currently running a set of Whiteline Group 4 coilovers in my S13 DD. They are 5kg front, 4kg rear, and I'm pretty happy with them. If anything, I'd say they are actually a tad more stiff than I'd like, but they're almost perfect. The car hasn't had much else done to it aside from poly bushings in the control arms and a few other places to help cope with the extra stiffness.

Unfortunately, one of the dampers was damaged and I need to replace it. It looks like nobody sells these anymore... plus I was beginning to doubt their sturdiness even before I had one fail.

That being said, I've decided to just upgrade all four corners and toss out the Whiteline. Unfortunately I just haven't been watching the DD market since I was expecting to have these Whitelines for a while, so I have no idea what all is out there. I was looking at some Stance coilovers for my track car but they don't seem to have anything more street-like available.

Cost is not really an issue here. I expect to spend $1500-2000 but am willing to go higher if it's worth it. The car is a daily driver, but I do take it offroad as I'm a ham radio operator and volunteer at local rallies. So my perfect suspension would eliminate body roll without making me slow to a crawl over speed bumps and potholes.

Let the recommendations commence, and thanks in advance for any advice!
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