D2/ KSport coilovers

Forum for Nissan wheel fitment, tire selection, suspension setup and brake discussions.
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93RPS13
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have u tried to drift with that setup? THanks


sleepyRPS13
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hey ace didnt u wreck u car recently ? i saw it on the zilvia

j-z
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so how does it handle?

j-z
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so how are they after having them for awhile?

AceInhole
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sleepyRPS13 wrote:hey ace didnt u wreck u car recently ? i saw it on the zilvia


yup. crashed and broke one of the coilovers. already bought and received the replacement. $160 for the shock, $100 EMS shipping. Got here in about a week.

Already building up a new car. I'll have more reviews after the first autocross.

candela
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whens the next autocross :p

AceInhole
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next autocross was yesterday.

I had so so little time and so much to do to get the car ready for autocross that I didn't have time to put the swaybars in (and my stock one is off). I ran the car anyays with no swaybars and it wasn't too bad:

At first it was fairly unpredictable as one of my camber plates was adjusted wrong. After fixing that, it seemed alright and I was able to pull off a decent time. I can't say much because the lack of swaybars really changed how the car felt. I wasn't very confident at all through quick transitions, even though the car handled it well. 2 autocrosses back to back this coming weekend. I'll be fully prepared by then.

Doogz
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Where the heck is your class at? Btw, the corner workers must love your giant numbers :)

EDIT: nm, it says SM in your sig. After you get things set up, how about giving me a heads up as to what settings you run with them for autox because i just got in on the other group buy and it'd be nice to have a good starting point to tweak from at my next autox.

AceInhole
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Doogz wrote:Where the heck is your class at? Btw, the corner workers must love your giant numbers :)

EDIT: nm, it says SM in your sig. After you get things set up, how about giving me a heads up as to what settings you run with them for autox because i just got in on the other group buy and it'd be nice to have a good starting point to tweak from at my next autox.


This wasn't an SCCA autocross, and the club that hosts it doesn't require class markings for numbers. Those are my old numbers from my black car.... getting new numbers made on friday.

For settings I'm running around 3deg camber up front, 2.25 rear, 7deg caster, 0 toe. I need to get back onto an alignment rack asap verify it cause it's all just tweaked by eyeball in relation to my last setup. It held pretty well, just need to get the swaybars back on.

Nismo_Freak
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Did you verify the camber settings via a pyrometer?

Whats your height setting?

Whats the spring rate you are currently running and which damper and with what dampening level?

I've contemplated setting the front for more camber ( 2.0 deg. -> 2.5 deg. ) and I'd like to know why you set it at 3, which is pretty severe.

AceInhole
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My friend and I literally threw the car together the night before so ALL the settings were pretty off. I can't verify that it's 3deg but it looked about so (my eyeballing has been prooven to be pretty accurate actually). I'll verify it on the alignment rack soon. I usually check temp by hand (no pyrometer yet) but I didn't even do that since I hadn't slept since we spent all night getting the car ready.

Height was as high as the rear would go, and we tried to set the front like an inch higher than slammed and somehow I failed as the front definitely sat lower.

Spring rates are 9/ 7, dampening at 3.5, 3.0 turns from full low. Since then I've bumped it up to 5.0/ 4.5 and it feels much better. I'll know more this weekend, as hopefully I'll be autocrossing twice with some sleep beforehand so I'm actually conscious, LoL.

Last year I ran the car with 2.5 front, 2.25 rear camber and I had a lot of outside front tire wear. The car is stiffer now so I think the additional camber is un-justified, actually. 2.5 should be fine. Like I said, there's an event coming up on Sat. so hopefully with the swaybars on I'll be able to test it out and dial it in correctly. I didn't bother playing with it last Sunday since I knew the swaybars would just throw everything off.

Nismo_Freak
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With the sways that stiff I'd run 2 - 2.25 deg. camber ... the outside shoulder wear I've found is due to the compressing suspension's corresponding toe bump and the load being primarily placed on the corner of the tire.

AceInhole
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I'm probably going to revert back to the 2.5deg and maybe reduce caster. Gonna experiment a bit this weekend. Sways are on. The car is scarily flat....

Doogz
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Hey ace, where is that review you promised us?? ;)

AceInhole
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I blew my diff up on the way to the event on Sunday.... :-( Finally have my VLSD in now, though.

I WAS able to do 3 runs on Saturday at a local event before I had to get to a dyno session. Also finally got some new magnets:

That right there is about all the body roll you can expect from the coilovers. With more spring preload it should flatten out a bit more, but braking through a turn will pretty much be as hard as it gets on these things. I for one think it's very flat, although I wonder what a difference an 11/ 9 setup would make (i'm tempted to try it). I really need to replace the front whiteline swaybar endlinks with something more solid, too.

As for performance, I now have the dampers set at 5.5/ 5 full turns from soft (Front/ Rear). There's still just about a full turn of adjustment left on the front (and a corresponding 1.5 turns for rear), so I think 11/9 may be as much as these things can take. The 9/7 setup is DEFINITELY good enough for track and autocross, though. The visible body roll comes from a LOT of lateral acceleration (R compound tires, 245 wide on all four corners). Really, going stiffer for Autocross would probably hurt more than help, since cracks/ bumps/ surface irregularities will just toss the car around more and your tires will spend more time off the ground, lol.

I still really need to flog these things, since at the last event I found out my rear toe control arms were bent. My rear end HAD to have had some toe out or something. I've replaced the rear arms and the car is much more stable.

Finally, my friend Jimmy just received his set (express shipped) and we installed his AT the autocross event (we don't need to walk the course at such an event. It's small enough and relaxed enough that we just get the general layout and modify our lines while driving). Everyone that passed by commented on how nice the coilovers looked, and complimented on the quality. The mounts are very nice peices! Anyways, here's a copy of his review from our local forum:Quote »Thanks to PJ for helpin' me gettin' them installed 45 minutes before the auto-x started.

I'm still gettin' them broken in (went for a hour joy ride today through some rural roads) hoping to settle the springs a little. The 9 kg/mm springs up front and the 7 kg/mm springs in the back aren't too bad at all...but aren't "comfortable" either...lets just say it keeps the ride very...controlled.

I've screwed around with the dampening a little, stopping every couple miles or so and tweaking. I'm still differentiating between tire bounce, and under dampening. But adjusting them from full soft to full stiff is quite different. Although the ride is still stiff due to the high spring rates, the body roll is much more apparent at full soft. So naturally, next, I tried full stiff, both front and rear, and gave it a good couple miles. Its much easier to point out that the rear was overdampened, but the front still seemed pretty compliant. So who knows what my final dampening will be. I'm running 4.5 turns up front, and 3 turns in the rear (from soft) and we'll see how it goes. Note, I'm also running just stock SE swaybars currently. I need to get back on to auto-x to test it out fully...but so far, they're quite the bomb. [/quote]I hope this helps!! There's a double header event coming on the weekend of the 17th, so I'll DEFINITELY have a lot more to say after then!! After missing the first event of my main season, I'll definitely be milking these things for all their worth at the next race!!

Doogz
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Sorry to here about the diff man. But i definately like the new magnets :)

That is still extremely flat and it makes me half tempted to use 7/5 instead of 9/7 as i have an extra set of 5s coming in. Then again i don't want to be a wuss either! Good luck to ya on the 17th and let us know how that weekend goes for ya.

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93RPS13
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damn i starting to like these coilovers more and more...

have you tried drifting with the coilovers yet? thanks

AceInhole
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haven't tried drifting yet. waiting for DGTrials and DOW to start up. The venues they're trying to host up here are all $100 POS events. I only drift for fun. hopefully it won't be much longer, or hopefully they've already started up and I just didn't know it.

crzycav86
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Wow. Great reviews.

Keep us updated :)

Dystopia
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ace you must be out of the loop it is now DOF

AceInhole
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Dystopia wrote:ace you must be out of the loop it is now DOF
lol. i wait for people to ask me if i'm going to events... then caravan with them. haven't even checked the dgtrials.com site in a while....

thanks for the info though! hoping to be there for a a few events again this year.

spitz7985
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AceInhole wrote:although I wonder what a difference an 11/ 9 setup would make (i'm tempted to try it).

Doogz wrote:That is still extremely flat and it makes me half tempted to use 7/5 instead of 9/7 as i have an extra set of 5s coming in. Then again i don't want to be a wuss either!


Stiffer springs aren't necessarily better. Too stiff and you're tires will have a harder time following road imperfections. When you're tire isn't pressed hard against the ground, you have less traction.

spitz7985
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AceInhole wrote:9's are longest, 5's are shortest
hpro123 wrote:Strange thing is you said the 5s are 7" and the others are longer... It should probalby be the other way around..


To calculate the rate of a linear spring-

Gd^4 8ND^3

whereG= 11.25 x 10^6 (11,250,000)d= thickness of wire in inchesN= number of active coilsD= mean spring diameter (inches)

To get the mean spring diameter, add the inside diameter and the outside diameter and divide by 2.

As you can see, length is nowhere in this formula. Therefore, length does not play a factor in the rate of a linear spring.

j-z
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hey ace i just got my coil overs yesterday and went to put one side on today. im having the same problem youre having with the rear. wtf? why did they make them like that? it feels as if my shock is almost out of the shock body and its still dropped on its nuts. i feel like it may weaken the entire assembly because its threaded out so far. what did you do? should i just thread the shock out more to get my desired height? the fronts are fine, its the rears that worry me. oh yeah everyone, the coilovers are REALLY NICE. HIGH quality, but weird design for the rears on the s14 that i know of. also, what would be a good dampining adjustment for a 7/5 rate setup just for all around good handling and sticking to the road?

barrigas14
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the rear is very easy to do. bolt the coil to the bottom bracket...then get a car jack and lift it into place. takes a few minutes.

anyways any having problems with clearing the coilovers? my stock S14 SE rims are rubbing on the coils...i can't figure out why. also is there an easy way to get the sides lined up (lowered the same on each side) better?

publicenemy137
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^ hmm so when you installed the coilovers in, ur rims are rubbing on the coilovers??? Anyone else have this prob?

VitaminT
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I will know today. Don't thinkg the rears were a problem but keep in mind I have a S13 with those same 5lug S14se wheels. Maybe the fronts wont clash.

barrigas14...did yours rub on front or rear or both?

barrigas14
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they just rubbed on the front. the tire not rim. what i had to do though was to rise the coilspring up and then the perch down to get more clearance. i added a spacer just incase...and now they clear. but the drop isn't much. i think it is the tires though. 225 in the front and rear. so i think that is the problem. no matter might be getting some rims now.

publicenemy137
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^ yea if you want to raise it real low someone said they had to remove stuff from their fender

VitaminT
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Yeah those 225s are killing you. They clear on my S13 with S14se rims (5lug conversion) and the stock size 205s. It is pretty close, but I am sooooo happy that they clear because I knew it was going to be a close one.

Keep in mind by raising the upper perches you are preloading the spring.


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