BC Racing Coilover Install

Discussion in 'Modifications And Maintenance' started by Justin, Sep 14, 2007.

  1. Justin
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    Justin Well-Known Member

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    Let me just say, these BC Racing coilovers are GORGEOUS!! Very high quality build that will take the pounding of the GrimmSpeed team car. I have heard/read alot of good things about these coilovers so i decided to pull the trigger and get them and i'm glad i did.
    I went with the 8K/6K setup and also got an extra set of 8K and 6K springs so i can swap them out to see what the best set up is. These come with very strong camber plates and pillow ball mounts(soo much better than the stock mount). In the next few days we will be getting their prototype rear camber plate as well. They are 32 way adjustable as well.
    Install went fairly quickly and there were direct bolt on to the 97 Impreza L. Below i have detailed step by step instructions.
    If you are looking for a great street/track setup..this is it.

    Installation
    Tools:
    12mm wrench/socket
    19mm wrench/socket
    Breaker bar(not needed but helps alot)
    Jack
    Safety glasses

    1. The harderst part of the entire install will be breaking free the 2 19mm bolts at the base of the strut. You will want to soak these in liquid wrench/PB blaster for 1/2 hour+ before you even try to loosen them. After soaking use a 19mm socket on a breaker bar to bust the nut loose. On the fronts, the top bolt is the camber bolt, make sure to put this bolt back in the top spot when reinstalling.
    [​IMG]

    2. Take off the brakeline bracket that attaches to the stock strut bottom. This is a 12mm bolt. See in pic above
    3. Take off the abs sensor bracket. This is also a 12mm bolt. See in pic above
    4. Now you will want to prop up the jack underneath the hub/control arm to hold the hub assembly in place. This helps not to stretch things out like your brake lines. Jack the jack up just enough to put a little pressure on the hub.
    [​IMG]

    5. With the jack in place you can now take off the 3 12 mm nuts at the top of the strut/strut top. These arent torque'd down much so they will be easy to get off. Before taking the 3rd one all the way off you will want to be holding on to the spring because once you take this last 12mm nut off the strut/spring will come loose.
    [​IMG]

    6. You have not taken the oem strut out.
    7. To start reinstallation of the BC Racing coilovers slide the strut top into the 3 holes in the wheel well. You may need to spin the strut a bit to properly align the tophat studs. Once aligned, loosely place the 3 12mm nuts on top of the strut. At this point you can let go of the strut as it will hang freely.
    [​IMG]

    8. Since the BC Racing coilver is shorter you will want to jack up the jack a few more inches to move the hub assembly closer to the bottom bolt holes on the strut.
    9. Insert the 19mm camber bolt into the top hole, then repeat with the bottom 19mm bolt through the bottom hole. Tighten down nuts onto both 19mm bolts.
    [​IMG]

    10. Reattach the abs sensor to the coilver with the 12mm bolt. See above pic
    11. Brake line bracket. This is the only piece that didnt bolt directly up. You will need to get a bolt, washer, and nut to tighten the brakeline bracket onto the strut base because there is not a thread female side on the BC strut like their is on the stock strut.
    12. You can now tighten down all 3 12mm tophate bolts.
    13. Now rinse and repeat for the 3 other corners.

    The install is very straight forward and should take you 2-4 hours depending on your experience level. You will want to play with the front top 19mm camber bolts to get the camber set to your liking.

    I will be writing updates on these bad boys as time goes on so you can all see how they preform.
    Justin Grimm
    www.grimmspeed.com
    AIM: GrimmSpd

    Few more fun pics

    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
  2. Nuke
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    Nuke Well-Known Member

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    Shaweet, can't wait to see these 'the L'
     
  3. Dynapar
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    Dynapar Well-Known Member

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    gonna be a bumpy ride on the gravel. how much can you adjust the dampening?
     
  4. curly2k3
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    curly2k3 Well-Known Member

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    turn the knob on the top for his
     
  5. esperunit
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    esperunit Well-Known Member

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    tarmac coilovers + gravel = not fun.


    Is this a dirt car or a track car? Those rates are way high for gravel.
     
  6. AWDimprezaL
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    AWDimprezaL has more posts than you

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    uh oh!
     
  7. prezawagon
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    prezawagon Well-Known Member

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    Wow those are short. How much ride height adjustment do these have? Can you get it back up close to stock ride height if you wanted?
     
  8. Justin
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    Justin Well-Known Member

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    this obviously isnt going to be our gravel/dirt/winter setup. i need to chat with tein about getting their Type gravels. i believe you can jack the car back up to stock height with the BCs
     
  9. curly2k3
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    curly2k3 Well-Known Member

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    you wont get it back up to stock with the BCs i dont think, but you can go down further :)
     
  10. Dynapar
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    Dynapar Well-Known Member

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    ^ that car is coming on the duluth trip right? there will be some gravel to test it on.
     
  11. Justin
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    Justin Well-Known Member

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    it freaking better be done by then. chux is coming down to install the wiring on wednesday then i just have to wait on the rest of the parts that i didnt get when i bought all the parts i need from the donor car.
     
  12. carl
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    carl Well-Known Member

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    i've driven mine on gravel with bc's - it's fine as long as you don't go fast haha
     
  13. Justin
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    Justin Well-Known Member

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    ok..well then they wont suit my needs :jumpy:
     
  14. Dynapar
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    Dynapar Well-Known Member

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    ^ ya know when you go fast you kinda float over the bumps...
     
  15. Vector
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    Vector Rally Organizer

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    I've never heard anything good about the longevity of the Teins on gravel (yes, including the Type Gravel). Look at Hotbits for a decent priced gravel strut/coilover.

    Mark "Mayhem83" Utecht runs them on his IIRA ice racer/RallyCross car and they work quite nicely.
     
  16. Dynapar
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    Dynapar Well-Known Member

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    ^ 95lwrx has some coils that came on the ice racer. must be whatever mark was using. they worked pretty well. very stiff iirc.
     
  17. Justin
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    Justin Well-Known Member

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    ok ill look at hotbits for sure then
     
  18. Vector
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    Vector Rally Organizer

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    I know that Mark sold the Ground Control coilovers (coilover prings and adapters to fit on a normal strut perch) that came on his GC before he made it into an ice race car, perhaps you are talking about those? Those are just springs and collars, the Hotbits are full integrated coilovers & dampers like the BCs.
     
  19. 95lwrx
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    95lwrx Well-Known Member

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    yes those are from his old ice racer, that setup is wrx struts with the heavy duty full length springs(not sure on brand) i imagine he is running a nicer setup on his current car :biggrin:
     
  20. Justin
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    Justin Well-Known Member

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    good place to find good deals on hotbits?
     
  21. Vector
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    Vector Rally Organizer

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  22. Justin
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    Justin Well-Known Member

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    hmm 1400 for the non adjustables. i wonder if you need the adjustable ones
     
  23. Vector
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    Vector Rally Organizer

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    Doubt it. Most people just get themselves into more trouble with the adjustables.
     
  24. FuJi K
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    FuJi K Well-Known Member

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    A few got to ride in my waggie with these BC coilovers. I have 8k all around.
     
  25. Justin
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    Justin Well-Known Member

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    we got the new prototype rear camber plates in today from BC Racing. These arent on the market yet so we are trying them out for BC. install was pretty simple with just the supplied tools(preload adjusting wrenches, 6mm allen), 14mm wrench, and a 17mm wrench. everything bolted up perfectly except i had to move the outside allen head bolts to the inside because they were hitting on the fender hole.

    first you will want to mark your current preload position for the spring. we used some fashionable pink finger nail polish to mark the spot.
    [​IMG]
    these are the wrenches that are included with the coilovers to adjust the spring preload. loosen the lower one first, then proceed with the second. loosen them enough to take all pressure off the spring so you can begin taken the plate/tophat off.
    [​IMG]
    these are the wrenches you'll need. this is the stock non-adjustable BC Racing tophats. first step will be taken the dampener adjuster off and the main nut the holds the plate on. when you get the dampener adjuster off you will expose a 6mm allen..this is used to hold the stud still while taking off the 17mm nut.
    [​IMG]
    next you will want to slide off the collar that sits around the stud. once the collar is off you can slide the plate off.
    [​IMG]
    here is a pic of the plate completely off. now we will start to install the new adjustable camber plates.
    [​IMG]

    put the new camber plate on. then slide collar back around the stud. tighten down the 17mm nut. you will need to use the allen wrench again to hold the stud from spinning. reinstall the dampener adjuster with your 14mm wrench.
    [​IMG]
    now the camber plate is completely installed. while trying to put the coilver onto the car i noticed that one of the small allen bolts was hitting on the side of the fender hole.
    [​IMG]
    to solve this problem you need to move both outside allen bolts to the middle slot.
    [​IMG]

    this is what the allen bolts should look like once moved over.
    [​IMG]

    now the coilover will slide back up into the fender and bolt right in with the 3 12mm nuts that hold the coilver to the fender.

    Hope that helps all of you out that will be doing this mod in the future when these plates come onto the market.
    Justin Grimm
    www.grimmspeed.com
    AIM: GrimmSpd
     
  26. Dynapar
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    Dynapar Well-Known Member

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    ^ where can you shave off wieght in the last pic?
     
  27. LVT
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    LVT Well-Known Member

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    fuji has the BC coilovers on his car. They work great and are pretty stiff. he has the 8k all around springs. they suck for long drives though that's for sure...................... =D
     
  28. ImportImage
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    ImportImage Vendor

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    depends what you set dampening at...im driving it 8 hours on saturday...you can bet it'll be on soft :)
     
  29. wall of tvs
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    wall of tvs Well-Known Member

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    lmao!

    They probably don't work well with jumps, either. :p
     
  30. nightracerwrx
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    nightracerwrx New Member

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    I love my BC's so far. No complaints yet. Had them on for 4 months.