"How to": Slot BC Coilovers on Protege5/MP3/MSP/ES

I've had a few people request me to create a simple "how to" thread on slotting coilovers.
This will give you the added camber you need. Whether it be for better cornering, or to fit some crazy offset wheel, this mod may help you out.
I would like to thank Adam aka Protege03ak46 for the killer idea. I merely did the video, albeit not a great one. lol
While I do know that this is not for everyone, I expect to keep this thread clean and free from flaming and negative comments. No need for that here. You either find it useful or not. Thats it. :)

You'll find the following in the description of the video as well:

Special thanks to Adam (Protege03ak46) for the idea! Thanks bro!
This is just a "how to" as I did it. Your particular application may vary. This process *should* work for most similar bodied coilover set ups that dont have camber plates.
I did notice however, when you start to approach the -5* camber mark, the brake line tab on the BC coilover, digs into the frame. So its either use less camber, or break off the tab and zip tie the line, like Adam suggested.

Again, this procedure worked out great for me. Very little rubbing now, whereas I was rubbing quite a bit before.
Take your time when doing this and use at your own risk.



1. remove top 17mm bolt
2. loosen the lower 17mm bolt only
3. measure top hole
4. lube up the top hole with wd or similar
5. insert drill into top hole (7/16 bit)
6. put one lug nut onto stud
7. put socket over lug nut
8. take pipe on slide it over socket
9. pull up on bar as you start drilling
10. dont use too much force while pulling up on the bar. go slow
11. lube more if needed
12. measure your cut again
13. clean everything off
14. reinstall socket over lug
15. pull up on bar while tightening the lower 17mm bolt 1st
16. now tighten the upper bolt still pulling up on the bar. this will help insure you are using all the camber the new slotting has to offer
17. enjoy new camber

*Note* This is for the rear only, but will most likely be a similar process for the front if you choose to do so.

 
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Thanks for posting the How to!!! I should of done it a long time ago but Im to lazy, lol.

This is not my idea, ALL credit goes to my homie mike, aka weaksauce. He taught me and I just posted up the ruff idea.
 
*update*

so after a month or so of doing this mod, Im please say I've found no slippage of bolts or any other adverse effects.


:)
 
There wouldnt be, most major coilover brands do it. If you do to much and need to pull it out a bit Id recommend getting some lock nuts like this:

C22975.jpg
 
So is this safe to do on an upgraded spring/strut combo? Just trying to get near 1.5* camber up front.
 
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More than safe. I've seen Moton, a very very high grade coilovers system ranging from 7-15 grand have slotted struts. Very safe.
 
oh yea, indeed safe. however, you mentioned a spring/strut set up not coilovers right? you may have limited room for slotting on regular struts. since the spring/strut set up is much larger in diameter than a coilover set up, it will limit the amount of camber you get. the more camber added, the spring will now be angled inward more possibly hitting the spring against the inner portion of the wheel well.
so, in your case, I would recommend a slight slotting, camber bolts, or rotate the strut hats to get a bit more camber like shown here:

Image2.jpg


but yes, it is safe and I'd like to see how much camber can be had using this slotting method on a regular spring/strut set up.
 
Alright cool good to know. A small slot job is all im looking to do on my tokico/spring setup. Sounds like camber bolts are known to slip during cornering, and will only give around -1* so im thinking -1.5* up front should be a good start. I haven't thought about spring clearance with that much camber, so I may grab a set of ground control coils to have on hand before trying out the springs in case it doesn't work. I'll keep you posted though. Thanks for the info!
 
So how much did you slot your struts? I was afraid of going too crazy with the camber, so I figured i'd be fine with slotting the hole out a 1/4 in. since im already around -.8* up front. So far it looks like doing this to a spring/strut combo is ok, as long as you avoid running too much camber.
 
I slotted mine quite a bit. lol maybe close to an inch? I have pics of it at home I can post if you want.
glad you're finding this how to useful.
thanks for reporting your findings as well. seems it is ok for a spring/strut combo as long as its not too much camber.
how does it drive now?
 
Oh damn I was waay off. Slotting to a 1/4 in. still gave me about -1.1* so im happy with that for now. As far as the ride, it feels more stable mid-corner. Everything feels just as solid before I did this mod. I checked the bolts today and didn't notice any slippage at all! I think im going to slot the struts maybe another half inch, then slot the rears so I have at least -1* back there also. Thanks to both of you guys for this mod!

I don't need to see any pics, but it may help to add some to the first post for others looking to do this to their struts.
 
i'm fixing to do the same with a coil/strut combo.. for the time being.. do you have pics of what yours looked like?? also how much of a gap was between the wheel and strut.. i have about 1 1/4" cleareance. and i'm look to get maybe -1* front and hopefully -1.5* in the back.. and ideas and pix would be helpful to me.
 
Yeah I'm def gonna do it lil bye lil and test fit as I'm goin. I don't wana end up havin the wheel hit the strut.. I was lookin at the diagram you posted on turning the mount for certain camber amd caster. What would be the most beneficial setting for my setup. 17x9 25
 

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