Issue with BC BR extreme low coilovers
 

ok so I installed my BC extreme low coilovers this past weekend and so far im having an issue that that is almost unbareable... I had them built w/ 10k springs front and rear. my issue is my car bounces like crazy in the rear. this isnt my first eperience with coilovers so i know there is an issue. Its like there is no dampening going on in the rear. Ive adjusted dampening several times and nothing has helped... Its like i purchased a set of $200 ebay coilovers. If anyone has any insight i would greatly appreciate it. I installed them myself and it was a pretty straight forward install. Idk if there is something i could check or adjust to help this issue... :iono:

I have no experience with suspension but I know that the stock spring rates are far less than 10k. 2.3k front 3.8k rear is the stock setup. Is the fact that your spring rate is so much higher the reason that your car is jumping? Why did you increase your spring rate over 300%? Your new setup seems awful stiff.

not familiar w/ bc products aside from seeing the name everywhere, but do they revalve their shocks to match w/ the higher spring rates? i would be doubtful but again, i'm not familiar with the brand

Have someone watch the car from the outside. You need to determine if the bouncing is from the suspension traveling up and down, or if it's the car bouncing on the tires.

Personally I think 10K rates is crazy high for street use.

@636 @SLICVIC and a few others can chime in

I spoke w/ @636 and he said his is bouncy as well. but i would like to hear what SLIVIC has to say...

I ran 10k springs on my previous car (s2000) and the ride quality seemed so much better. I was running Megan Racing Street series on the s2k so it wasnt like I was running high end coilovers

You did buy Ebay coilovers...

Sounds like you need far, far more damping in the rear. Keep adjusting the damping up and hope that it works.

I have bc br with swift 8/8k springs Upgrade, there's a time that I wish I opted for a softer spring rate. So I can imagine 10k would be super stiff....

uh.. i guess mine is bouncy. It really depends on personal opinion? i have 10k all around , dampening on full stiff all around. Kinda too soft for my fitment thinking about doing 15K maybe idk

OP, have you checked whether the car is sitting on some sort of bumpstop in the rear?

He said its LIKE he bought Ebay coilovers, re-read it.



And, I just don't know if you're used to having such a light car with such stiff springs, It's normal. Rode like this on my civic with 24k.

its normal. I had buddyclub rsd 10k/15k on my civic and its stiff... still is. Riding in my FRS is like rolling around in a cloud compared to the vic.

Same I have the same extreme drop with 10k my dampening is set to 25 all around and yap my car is bouncy too, thinking its from the stiff springs is all.

Wait, is anyone except me reading this and wondering why the OP bothered with springs at all rather than just inserting blocks of wood instead. The idea of the suspension is to keep the tyres in contact road, not bouncing up and down.

Or have I just missed the point?, stiffer to the point where your suspension isn't doing anything but reacting to its own poor set up seems counterintuitive for a car designed for great handling.

Well if his goals are to slam the car (since he got by exteme low) I wouldn't see a problem with those spring rates.

Only problem I have is that everyone seems to think we all should have the same goal. Some people use it as a grocery getter, others a daily beater, and for some, a track beast or weekend warrior

Not everyone has the same goals for the car. I'm sure @SLICVIC has his own goals and those goals aren't making it "functional". Should I care? Nope, him doing what he wants doesnt affect me. Every time someone does something slightly out of what's expected for this car, everyone loses their minds.

I don't have a problem with people doing what that they want with their cars, dropping it on its bump stops then complaining when it bounces because it's oversprung and under damped for daily driving seems odd though.

Its not on bump stops, I guess i overreacted, it was bouncy due to the dampaning adjustment. when at full stiff the car feels way to stiff/bouncy to have any sort of handling characteristics(i guess thats why they call'em low and slow). But at full soft or even a couple of clicks on the dampening the car handles well and doesnt bounce. ride quality feels similar to stock. Its a night and day difference. When I did my initial dampaning adjustments I never went full soft as I assumed that there would be too much suspension traval over bumps and thought that the car would bounce more. I was wrong:bonk: next time I will make sure i exhaust every option prior to posting. I appreciate everyones input!

as far as the spring rates go w/ light vehicles, my previous car was an s2000 which if IIRC is lighter than the FRS and I had 10k F/R spring rates on the coilovers i had. The dampaning was set to full hard and the car handled great, ride quality was good and had no issues. I know they are 2 totally different cars w/ to totally different suspension setups but I used it as a basis for my decision for this car. yes i do love the stance look but i also love to have the ability to take a corner hard when needed. this was def a learning experience.

just chill man, these coilovers were designed to allow full suspension travel no matter which height the car is adjusted to. So even at its lowest its far from bump stops. Also 10k on our cars isnt that horrible, ive heard of some cars ranging from 20k to 30k in the name of fitment. Most ive heard of was 60k. The OPs issue was im sure he never installed 10k springs in a car this light so he wasnt sure if the harsh ride was actually supposed to be That harsh or if he did something wrong, just wanted some clarity i assume.

Bounciness is NOT normal. It's from lack of damping. It's only normal when everyone has subpar dampers.

The damper's job is to absorb oscillation of the springs caused by uneven pavement, and make it so the car hugs the road.

If you have the dampers set to full hard, or closed, then the ride will be really, really stiff.

Glad you figured out the issue, enjoy them!

Glad to see my suggestion worked! :D

Yes thanks a lot @636!!

How long did they take to arrive ?

they took 3 weeks from order to door step.