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BC Racing Coilovers How To Adjust Spring Preload
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- Опубликовано: 8 ноя 2015
- This video will show you how to install new springs on your BC Racing coilovers. This video will be helpful to those looking to change out spring rates, or upgrade to swift springs. The video will also explain how to properly adjust the spring preload of your BC Racing coilovers for most street setups.
Awesome video! Many years later I’m still watching this
In a later video can you teach me how to sound just like Chelsea Denofa?
Awesome video was wondering is that Y my rear of my 2015 GS 350 hits a little hard when going over bumps and dips
What happen if I compress it more then 4mm? The ride it's gonna be more stiff and if I loosen it will make it more softer? How about if I change it from 4mm to 10mm does it more softer handling?
Carlos Duran
Yo tambien quiciara saver mi carro es muy trinco 🤷🏽♂️
You found anything? Lol
No the opposite, more preload = stiffer spring = bouncier ride. Although you most definitely won’t feel a few mm difference regardless.
Do it, make a video, show us lol
I'm curious also
These are linear spring rates, won't make it harder, BC recommends 4mm of preload due to the valve travel inside the shock. increasing the preload would net the shock valve sitting higher and reducing bump travel. if you do that you'd have to soften the damper setting or it will be bouncy, adding preload helps push the wheel into the ground for increased traction but you can only do that if the spring isn't binding and you are able to soften the dampening enough to suit
If the ride is not as planted after adjusting height do I need to add more preload? After raising my rear (divorced spring setup) the car has kind of a floaty feeling in the back.
How do you adjust the rear on a Mazdaspeed 3 where the strut and spring are separate ?
Same problem with my 2018 Accord.
@@Jacob2.0t And basically all BMW's... Can't find any manual including adjusting spring preload AT LEAST for factory "stock bc racing" settings. That could include the stiffness settings also. I wish BC Racing could at least answer their Customer Service line and answer the basic questions and at least let fans spread the specs, but they don't... Made several calls and no one ever even answered, voicemail isn't something you could rely also...
I Have the DS series Coilovers and since it's their more expensive model I'd expect just a little more "gratitude" with at least giving me the sheets! I can't rate the suspensions performance by just guessing on which click on rebound will do it's best. Spring rate could be adjusted way better if i could also have a graph for that front spring.
If they tested their actual performance they should have them, so why not brag about it? Looks like its just generic coilovers that just look more premium. Put together from just standard parts and putting nice paint'n sticker lol... The car drives nice but it's a never ending story of thinking which spring preload compared to how many clicks you did on the struts.. xD
If i'd know for example, that their "best settings" just how they designed are 16 clicks out and let's say 1/8th spring compression on front and back. Then I'll know the baseline they want me to be on. I cant verify any of that since the springs weren't preloaded evenly, front left-right wasn't even with clicks, one was 17 one 19 out, back was even 18 out.
For now I think we just wasted money trying to go for a bit higher quality setup, but we didn't go high enough that it matters... Customer service doesn't exist, and you'll need to at lest look for a good shock test bed to test it's best performance to really dial it in cause you're not getting any logs from BC... ¯\_( ͡☉ ͜ʖ ͡☉)_/¯
my left ear liked this
AYOO 🤣🤣🤣 right ear had the elevator music
Im guessing this can be done while installed in car ( the spring rate part not changing spring)
Yes. Unloaded of course.
Will h&r sport springs or race springs work or fit on these coilovers?
You can use 326 power and order custom sizes or Swift springs
So just bought these fronts for vy ss ,heads cam 303rwkw manual from new what's best way to set them up for street/light track duties,are they way off from factory or pritty close just need fine tuning?? I just don't want touch it to much if it's already set up as all
simple and i got it .. thanks bro
I'm getting a knocking sound coming from the front passenger side. Could this have anything to do with the spring pre-load??
Googly Eyes meaning?
it could be the lower control arm hitting something or the loose preload like you said.
Loose but on the top of the coilovers...open hood, tighten the large nut.
I adjust my preload to 4mm but it still super bouncing!
adjust the dampening
This once setup with preload properly and you find that sweet spot. 3-4 clicks on either side from that sweet spot will affect handling drastically, stiffer = understeer less traction, softer more grip, also more responsive steerings or less responsive, for the rear end stiffer more oversteer, and softer more grip, on my drift car from the sweet spot at the track I run 3 clicks softer on front, and 3 clicks harder on rear, then just play with tires pressures, also varies from track to track and speeds I'm drifting at, suspension isn't really set it once and forget it if you want the most oout of it
I had that same issue with my GS I should of gotten the TIEN COILOVERS
So why did you take the first spring off and put a different spring?
My 95 civic uses a D2 coilover that the last owner use it in track... But is terrible to use in the street, many punches because the springs are too hard. Adjustable this spring preload would help?
Is this required for these coilovers or can I mess with the dial.
Can i do this on Lexus RX300? I want to increase suspension
Increase comfort? Minimal preload, max coilover height, very small + on the dampers.
Noob question: why would you set preload prior to installation when you don't know yet what the ride height will be?
Because it's best to have minimal preload until they're on the vehicle. Really you want as much damper travel as possible anyway, and you don't want to take away from the dynamic shock loading of the springs.
Springs don't determine ride height on good coilovers. The ride height is set by moving the lower portion of the coilovers up or down. If you notice, there are 3 locking nuts, 2 for the spring and one at the bottom. You loosen the bottom one while it's in the car, and you twist the coilover body up or down.
Do these come from the factory with preload already adjusted?
Yes
Any idea if this will work on megan ez1
What is the dust boot aboot? 🇨🇦
so that the dust or dirt doesn't get into the piston strut... an cause problems in the long run bro
Thank you
Hey bro is there anyway to stop the car from bouncing with these? I just installed them and the back bounces a lot, kind of seem like it’s a very cheap Coilover compared to other brands I was looking at like qa1 and kw
adjust dampening
if it's bouncy its too soft, I found these have a sweet spot once you find it you just want to do 2-3 clicks either way depending on type of driving you want to do
Hey, I see you guys sell bc c139, google says it will fit prius prime, will they? Thanks
Doesn't BC already set the preload from the factory?
only for fronts, because like my bc coilovers reused the old top hat of my rear struts while the fronts had their own and were ready to plug and play
Trying to undo the top nut and it's no where near as easy to undo. Mine are brand new and it's so tight I can't get it undone. I'm afraid of stripping the Allen key hole
Yeah mine feels like it was installed by the hulk
I got it off! I had to install the coilover into my shock tower and snug the nuts to keep the coilover from flipping around like on my bench. Then I adjusted the camber plate all the way to one end to give me more clearance for the wrench. Then I used the 17mm and a 22mm (or any wrench larger than 17mm) to extend my leverage on the 17mm. It wound up making the shock shaft spin a little rather than the nut, but once it was broken loose I spun the nut off pretty easily.
I used a quick press of an impact gun to release the nut.
@@brandonlow27 you often have to remove the spring preload first so there is no pressure on the top mount
@@alexjaxon9928 I think I did but it was a while ago now so I dont remember. Still a good tip.
Just got BC’s for camry 2020 xse from coil-over depot and they making clunk sound
Did you fix it? Mine are doing the same exact thing and from my research we’re not the only ones
@@ernestoduran5610 naaah men i have to remove it, i just have $1,300 laying down on my garage never get to fix the noise.
@@pitolon100 Damn that sucks. Mine have a year warranty through redline360 so I just contacted them to fix the issue. I don’t want to get stuck with them either. I read to grease up the contact points and go softer on the shocks so I’m gonna try that before returning them for a refund. Hopefully they get back to me with an answer
@@ernestoduran5610 it doesn’t work i try everything u can see on youtube and nothing work out😪😪
@@pitolon100 yeah that’s what I worried about. We probably just got a bad set of coil overs. I checked every nut and bolt on the coil over and everything that attaches to it. The grease and damper adjustment will be my last attempt before I ask to return them.
Cannot hear a thing
This is so strange to see in 2021
Ikr now he’s like the best FD driver to date. I miss his bmw chassis they were just so cool to watch him build those old bimmers too
“Shpring”
Sound
this is a terrible video on how to adjust the preload without any real way to measure. stock spring load on my subaru for example is 215lbs per square inch the spring is compressed. are these springs on your coil overs the same? doubt it and i bet they are linear in fashion. so tightening by hand till they are hand tight is a terrible form of measure. if you want to ruin a car you have acheived this. .
This is so miss leading
BC SUCKS 🤢 should of gotten the tein or RSR