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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.

Комментарии • 78

  • @_carsup
    @_carsup Месяц назад

    Awesome video! Many years later I’m still watching this

  • @Phil60084
    @Phil60084 5 лет назад +6

    In a later video can you teach me how to sound just like Chelsea Denofa?

  • @themacintheacc1366
    @themacintheacc1366 Год назад

    Awesome video was wondering is that Y my rear of my 2015 GS 350 hits a little hard when going over bumps and dips

  • @carlosduran9528
    @carlosduran9528 6 лет назад +11

    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?

    • @n3itan
      @n3itan 6 лет назад +1

      Carlos Duran
      Yo tambien quiciara saver mi carro es muy trinco 🤷🏽‍♂️

    • @PopularDollar
      @PopularDollar 5 лет назад

      You found anything? Lol

    • @f3irty278
      @f3irty278 5 лет назад

      No the opposite, more preload = stiffer spring = bouncier ride. Although you most definitely won’t feel a few mm difference regardless.

    • @cop2506
      @cop2506 4 года назад +3

      Do it, make a video, show us lol
      I'm curious also

    • @d1zguy864
      @d1zguy864 3 года назад +5

      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

  • @Dnasty1
    @Dnasty1 2 года назад +1

    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.

  • @11ufcfighter
    @11ufcfighter 6 лет назад +7

    How do you adjust the rear on a Mazdaspeed 3 where the strut and spring are separate ?

    • @Jacob2.0t
      @Jacob2.0t 4 года назад

      Same problem with my 2018 Accord.

    • @motorooster25
      @motorooster25 3 года назад +2

      @@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 ͡☉)_/¯

  • @SomeMechlover
    @SomeMechlover 4 года назад +3

    my left ear liked this

    • @hamzasuede
      @hamzasuede 3 года назад +1

      AYOO 🤣🤣🤣 right ear had the elevator music

  • @tartantyres3829
    @tartantyres3829 3 года назад +2

    Im guessing this can be done while installed in car ( the spring rate part not changing spring)

  • @Stancedude1
    @Stancedude1 6 лет назад +5

    Will h&r sport springs or race springs work or fit on these coilovers?

    • @jeffmorrow3320
      @jeffmorrow3320 6 лет назад

      You can use 326 power and order custom sizes or Swift springs

  • @katieayers6017
    @katieayers6017 Год назад

    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

  • @MuhamadAzizi-wn5qt
    @MuhamadAzizi-wn5qt 4 года назад +1

    simple and i got it .. thanks bro

  • @holdtightyou
    @holdtightyou 7 лет назад +4

    I'm getting a knocking sound coming from the front passenger side. Could this have anything to do with the spring pre-load??

    • @holdtightyou
      @holdtightyou 7 лет назад

      Googly Eyes meaning?

    • @Thesusoperator
      @Thesusoperator 7 лет назад +1

      it could be the lower control arm hitting something or the loose preload like you said.

    • @charliesmith5545
      @charliesmith5545 5 лет назад +1

      Loose but on the top of the coilovers...open hood, tighten the large nut.

  • @HoangNguyen-vh7db
    @HoangNguyen-vh7db 6 лет назад +11

    I adjust my preload to 4mm but it still super bouncing!

    • @darkflames1284
      @darkflames1284 4 года назад +7

      adjust the dampening

    • @d1zguy864
      @d1zguy864 3 года назад +3

      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

    • @themacintheacc1366
      @themacintheacc1366 Год назад

      I had that same issue with my GS I should of gotten the TIEN COILOVERS

  • @Devest8
    @Devest8 2 года назад

    So why did you take the first spring off and put a different spring?

  • @primopobre5997
    @primopobre5997 3 года назад

    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?

  • @Max_ellis74
    @Max_ellis74 Год назад

    Is this required for these coilovers or can I mess with the dial.

  • @joshua_valoi8236
    @joshua_valoi8236 3 года назад +1

    Can i do this on Lexus RX300? I want to increase suspension

    • @DoubtingThomas333
      @DoubtingThomas333 2 года назад +1

      Increase comfort? Minimal preload, max coilover height, very small + on the dampers.

  • @hiroshi138
    @hiroshi138 6 лет назад +3

    Noob question: why would you set preload prior to installation when you don't know yet what the ride height will be?

    • @DoubtingThomas333
      @DoubtingThomas333 2 года назад

      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.

    • @josephfigueroa3527
      @josephfigueroa3527 Год назад +1

      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.

  • @RicondaRacing
    @RicondaRacing 6 месяцев назад

    Do these come from the factory with preload already adjusted?

  • @panagiotisf7228
    @panagiotisf7228 5 лет назад

    Any idea if this will work on megan ez1

  • @DroneWorldbelo
    @DroneWorldbelo 6 лет назад +1

    What is the dust boot aboot? 🇨🇦

    • @delaney4708
      @delaney4708 4 года назад +1

      so that the dust or dirt doesn't get into the piston strut... an cause problems in the long run bro

  • @audearing27
    @audearing27 3 года назад

    Thank you

  • @2vgod460
    @2vgod460 4 года назад +1

    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

    • @dimensionjester9052
      @dimensionjester9052 3 года назад +1

      adjust dampening

    • @d1zguy864
      @d1zguy864 3 года назад +1

      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

  • @cop2506
    @cop2506 4 года назад

    Hey, I see you guys sell bc c139, google says it will fit prius prime, will they? Thanks

  • @MrEvtmazda
    @MrEvtmazda 3 года назад

    Doesn't BC already set the preload from the factory?

    • @SCUUZEM3
      @SCUUZEM3 3 года назад

      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

  • @rufftuff95
    @rufftuff95 4 года назад

    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

    • @brandonlow27
      @brandonlow27 4 года назад

      Yeah mine feels like it was installed by the hulk

    • @brandonlow27
      @brandonlow27 4 года назад

      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.

    • @rufftuff95
      @rufftuff95 4 года назад

      I used a quick press of an impact gun to release the nut.

    • @alexjaxon9928
      @alexjaxon9928 3 года назад +1

      @@brandonlow27 you often have to remove the spring preload first so there is no pressure on the top mount

    • @brandonlow27
      @brandonlow27 3 года назад

      @@alexjaxon9928 I think I did but it was a while ago now so I dont remember. Still a good tip.

  • @pitolon100
    @pitolon100 3 года назад +1

    Just got BC’s for camry 2020 xse from coil-over depot and they making clunk sound

    • @ernestoduran5610
      @ernestoduran5610 3 года назад +1

      Did you fix it? Mine are doing the same exact thing and from my research we’re not the only ones

    • @pitolon100
      @pitolon100 3 года назад

      @@ernestoduran5610 naaah men i have to remove it, i just have $1,300 laying down on my garage never get to fix the noise.

    • @ernestoduran5610
      @ernestoduran5610 3 года назад

      @@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

    • @pitolon100
      @pitolon100 3 года назад

      @@ernestoduran5610 it doesn’t work i try everything u can see on youtube and nothing work out😪😪

    • @ernestoduran5610
      @ernestoduran5610 3 года назад

      @@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.

  • @54tristin
    @54tristin 3 года назад

    Cannot hear a thing

  • @jadennelson7808
    @jadennelson7808 2 года назад +1

    This is so strange to see in 2021

    • @luckylegs8547
      @luckylegs8547 2 года назад

      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

  • @96759boi
    @96759boi 5 лет назад

    “Shpring”

  • @54tristin
    @54tristin 3 года назад

    Sound

  • @moek28
    @moek28 3 года назад

    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. .

  • @Built_it_by-alex
    @Built_it_by-alex 3 года назад

    This is so miss leading

  • @themacintheacc1366
    @themacintheacc1366 Год назад +1

    BC SUCKS 🤢 should of gotten the tein or RSR