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Old 07-18-2008, 12:06 AM   #1
04 Slo Sti
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Default Installed Tein Flex's Bounciness!

hey guys...i installed my Tein flexs...did alot of reasearch before i bought them and now tonite i did some more searching but really no good answers..

so far there awesome for handleing...

i have the car pretty low but not crazy low

i put the setting on 8 in the middle and they were pretty bouncy..

now i'm on the lowest possible and its still crazy bouncy..

its weird...my roads have like real small speed bumps kinda in them and thats were its the worst

pot holes are perfectly fine...and going slow down the road is fine

going like 60 or higher down the highway was terrible...

any ideas

i saw that there dual adjustable but the bottoms are pretty much down and i just adjusted the top parts of the adjusters

tommarow i'm going to go up higher like 10 or so on the adjuster and see what happens
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Old 07-18-2008, 12:14 AM   #2
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What spring rates, and what heights do you have them set to?
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Old 07-18-2008, 12:19 AM   #3
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honestly i dono the spring rates

i bought them used on here and he didn't list that

tires are at the fender arches



not tucking but no gap
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Old 07-18-2008, 12:31 AM   #4
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Quote:
Originally Posted by 04 Slo Sti View Post
honestly i dono the spring rates

i bought them used on here and he didn't list that

tires are at the fender arches



not tucking but no gap
Ok, for both handling and ride comfort, that's WAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAY too low!

For good handling and ride, the lowest you want to drop the car is 14" in the front/13.5" in the rear, measured from the center of the hub straight up to the metal of the fender. If you have no gap, you're a good 1.5-2" below that point. Raise the car up first, then we can start to help you get the rest of it dialed in.
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Old 07-18-2008, 12:40 AM   #5
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honestly i know the whole subaru shouldn't be lowered type of deal but if i'm goin to raise it back up i'll just back to my spring and pink setup

is there anyway to dial it in a lil better

its not insanely bad right now...but i just thought a lil bit better would be nice

thanks guy for the quick replies tho....

if i end up hatin it i'll just back to my stock setup i had
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Old 07-18-2008, 12:41 AM   #6
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I would be very surprised if you can make it ride acceptably at that ride height. However, if you want to try, what damping adjustments do the Flex offer?
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Old 07-18-2008, 02:47 AM   #7
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dude ur obviously not gonna have luxury ride in a performance suspension. If its too bouncy, stiffen it up then you wont get as much of the "on the boat" effect, it will be just shorter bumps. IDK thats all I could think of if you looking for a smoother ride with perf. coilovers lol too soft and you will get that wavey bounce.
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Old 07-18-2008, 03:51 AM   #8
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heh guys guys...

i understand thats its not going to be this nice awesome ride and i've read the FAQ and it even said that there is no reason a coilover cannot ride as good as the stock setup if set up correctly but as you guys have mentioned i'm a lil to low to have it ride as comfortable as it could be

but i dont even want it to ride like stock

hell stock didn't even ride that good compared to some of the other "stock" cars i've ridden it

i've had so many dumped honda's i really don't care how it rides

i was simply just wondering if it was possible...



i'm going to tighten it up for tommarow

id rather have a stiff bump then this wavey garbageeeeeeeeeeee lol

thanks guys tho
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Old 07-18-2008, 03:52 AM   #9
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and oops

The flex is 16 way adjustable i have it on the lowest setting possible so that would be 1

Last edited by 04 Slo Sti; 07-18-2008 at 03:52 AM. Reason: b/ci'm dumb
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Old 07-18-2008, 07:16 AM   #10
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You seem to already know the car's going to ride like crap with those coilovers, so just get used to it, or get different coilovers. And you don't seem to care that everyone's telling you it's too low, which is contributing to the bad ride, so get used to it, raise it, or get different coilovers (but don't slam them).
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Old 07-18-2008, 08:27 AM   #11
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14" and 13.5" is NOT stock. You want suggestions...there's the first one. No more until you actually listen and follow it.

My car is 14.25" 14" and I think it's too low for proper handling.
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Old 07-18-2008, 10:10 AM   #12
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Quote:
Originally Posted by 04 Slo Sti View Post
and oops

The flex is 16 way adjustable i have it on the lowest setting possible so that would be 1
1. You need to raise your car as said.
2. You need to INCREASE the damping, not decrease. Decreasing it to where you have it will make it more bouncy and floaty.

Fact of the matter is, they are going to be rough. I agree with you that there are coilovers that can ride better than stock. Teins don't happen to be one of them.
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Old 07-18-2008, 01:46 PM   #13
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1. Make sure you have the springs correctly pre-loaded (check tein's website for setting up the coilover height and spring pre-load)
2. Try setting the damping at 8(F) / 6 (R) that setting work pretty well for me for daily driving.
on the track i have it set a 1(f) / 2 (r).
3. How many miles have the coilover been on? It maybe the shocks are extremely worn out, therefore causing very rough / bounciness ride.
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Old 07-18-2008, 02:03 PM   #14
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Quote:
Originally Posted by Garage Spec View Post
1. Make sure you have the springs correctly pre-loaded (check tein's website for setting up the coilover height and spring pre-load)
2. Try setting the damping at 8(F) / 6 (R) that setting work pretty well for me for daily driving.
on the track i have it set a 1(f) / 2 (r).
3. How many miles have the coilover been on? It maybe the shocks are extremely worn out, therefore causing very rough / bounciness ride.
And did you lower the ride height using the lower adjustment at the bracket or did you simply drop the spring perch down? If you dropped the spring perch down you are bouncing a lot because you have no travel and its simply bouncing off the bump stops.

Damping is one of those things you have to tune to your liking. The easiest way to do it is start at full stiff and drop the setting one click at a time until you find something that suits your needs. The front will be different from the rear as the spring rates and corner weights are different.

IIRC, the '04 STi spec coilovers were an 8k/6k spring setup. They switched to 10/8 in '05
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Old 07-18-2008, 02:22 PM   #15
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ok so far i've gotten good info from 2 people

everyone just repeated what someone said or what has already been posted years ago that i searched for

i'm going to go back out and mess with it b/c i simply lowered the spring perch which now that i look at it is my problem..

my GF has some crappy ebay springs on stock civic struts and the ride isn't this bad...so its in the lowering part

i'll figure it out
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Old 07-18-2008, 02:26 PM   #16
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Can't really compare a Civic to a Subaru. Civic's from 92-00 have far superior suspensions to the Suby and can be lowered practically to the ground without too many problems.
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Old 07-18-2008, 02:50 PM   #17
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Yeah, as stated, to reduce bounce you need to increase damping, not decrease it. Bouncing is caused by the natural occilation of the spring. If there's no damping, and no friction, the car will bounce forever. That's why dampers were invented in the first place.

If the car is underdamped, it will bouce as there isn't enough damping to stop the occilation of the springs.

If the car is overdamped, very strange things happen. But unless it's stupidly overdamped, it will just reduce the travel of the suspension, make any bumps you go over feel like they're punching you in the ass, and reduce traction.

If the car is critically damped (damped perfictly), then when you go over a bump the wheel will rise up as high as the spring rate will let it, then drop back down to the natural "neutral" position of the spring without overshooting and occiliating.

What people are trying to tell you about raising your ride height isn't just for ride quality, but for handeling as well. You've reduced suspension travel way to much with the ride height that low, and you'll have reduced handeling as a result, in addition to crappy ride comfort.
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Old 07-18-2008, 03:12 PM   #18
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good info and thanks...

but on a side note i went outside and i'm workin on the rears and i was definately on the bump stops

i didn't adjust these accordingly at all

luckly i only drove around the block

and i went to tein's website and to adjust these coilovers you have to go all the way hard and adjust them according everytime you adjust these

so just so we cleared that up

should have them both adjusted in teh next 30 the way i want them and i'll report back

thanks guys
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Old 07-18-2008, 03:19 PM   #19
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Quote:
Originally Posted by 04 Slo Sti View Post
i'm going to go back out and mess with it b/c i simply lowered the spring perch which now that i look at it is my problem..
Yes. That's probably 90% of your problem. You should try to find out what the recommended preload is for those coilovers, set the spring perch there, and then use the lower collar to raise/lower.
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Old 07-18-2008, 05:28 PM   #20
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i fixed the problem guys it was b/c my lower perch was to low on the coilover so i raise it up and wa la

and it does ride good to all the people who said it wouldn't

hell it rides better now lower then it did with my spring setup

but thanks to all who gave helpful info...


this thread can end now lol
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Old 07-18-2008, 09:13 PM   #21
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:sniffle: I love it when a suspension thread has a happy ending.

















except I'm still waiting for my happy ending
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Old 07-19-2008, 01:16 AM   #22
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Quote:
Originally Posted by Garage Spec View Post
1. Make sure you have the springs correctly pre-loaded (check tein's website for setting up the coilover height and spring pre-load)
http://www.tein.com/tech_info/s60.html
They recommend lowering 2.4" in front and 1.6" in the rear. That sounds pretty damned low. I don't think that is as good a baseline as the standard 14/13.5 recommendation.

Quote:
Originally Posted by MasterKwan View Post
Can't really compare a Civic to a Subaru. Civic's from 92-00 have far superior suspensions to the Suby and can be lowered practically to the ground without too many problems.
Yep - double wishbone vs Macpherson strut (I know you know this, just getting it out there for the OP). This is a common mistake for folks who are coming from Hondas (or who have just never done this before but have seen a lot of lowered Hondas)
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