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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Springrates BC Racing Coilovers



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      01-06-2015, 02:30 PM   #1
weebmeister
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Springrates BC Racing Coilovers

Guys, i need a little bit of help.

I want to order BC Racing Coilovers but what spring rates do I need? I'm driving on 19" BBS CH Wheels and the M-Sport Suspension is way to high, haha.



Highest point of the car is 6.5cm (2.9 inch)


Really want to get very low ("slammed") but i don't know where to start with the rates. The "Extreme drop" is only a other spring rates then stock (8/12)

For example I got a couple of picture of Kevin Love his E90. He's rollin on BC's but he had problems on 10k/14k spring rates, he had to remove 2/3 collars.





Hope to hear from you guys and hopefully I can get some info!

(Sorry for my bad english. Haha)

Thanks!
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      01-07-2015, 09:55 AM   #2
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Sounds like the spring rates are fine, maybe 12k in the front and leave 14 in the rear. Im not familiar with his issue. Removing 2/3 of the collar is what throwing me off. I'm assuming it was to go lower. If that's the case, you should just look for shorter springs.
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      01-10-2015, 06:12 AM   #3
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Thanks for the info! Don't want to remove the collar, hehe!

Hope to get some more info, so I can order my coils!
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      01-11-2015, 08:16 AM   #4
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Just get 18/24 and call it a day. If you ever get "serious' about lip to fender and become an addict like I have you are going to want them anyway. Also, buy from Broadway Static not BC
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      01-12-2015, 01:48 AM   #5
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18/24 Woaah! Isn't that way to bumpy, i know i can't complain about the drive experience when the car is slammed but I think it's a bit to much? Hehe.
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      01-12-2015, 02:21 AM   #6
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You are trying to achieve a certain look that forfeits your rights to a smooth(er) ride. While 18/24 would be "bumpy" in a sense its not terrible....if youre worried about a shitty ride then I suggest getting bags. But at 3x the price of coils it might not be within your budget. I ran 12/14 for a little while and it was no where near stiff enough to protect my fender/lip. Just my .02.
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      01-12-2015, 11:19 AM   #7
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Quote:
Originally Posted by mikey G View Post
Just get 18/24 and call it a day. If you ever get "serious' about lip to fender and become an addict like I have you are going to want them anyway. Also, buy from Broadway Static not BC
Quote:
Originally Posted by mikey G View Post
You are trying to achieve a certain look that forfeits your rights to a smooth(er) ride. While 18/24 would be "bumpy" in a sense its not terrible....if youre worried about a shitty ride then I suggest getting bags. But at 3x the price of coils it might not be within your budget. I ran 12/14 for a little while and it was no where near stiff enough to protect my fender/lip. Just my .02.
Done and Done, you have your answer....; I was going to recommend the same..!!!
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      01-12-2015, 12:21 PM   #8
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Also, how the hell did you find me on facebook? lol....im assuming you messaged Ivy League East...but thats funny.
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      01-18-2015, 04:15 PM   #9
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I ordered my BC set! > BC Racing Extreme Low - 14k/20k Springrates

When the set is mounted I will post some pics guys! Thanks for the help anyway!

(PS, thanks MikeyG for the personal tricks and tips!)
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      02-01-2015, 05:19 AM   #10
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BC Racing Extra Low 14k/20k, removed 1 collar at the front.

This isn't the lowest point of the BC coils, maybe in the summer I will slam the car lower.

Can't get the wheels flush because I need to get other tires, spacers and roll my arches.









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