i'm running 275/30 -19's on my 19x9.5's but i have a +18 offset...and i haven't rolled the fenders yet, i get a little rubbing on the rears from dips other than that, works for me...but once i get coilovers and get the fenders rolled, i'm gonna run 245 or 255/35-19's on the rear so it doesn't rub ...
IT'S A DRIVER'S MACHINE THE ULTIMATE!!19" Staggered SSR GT03's on H&R Sports
Last edited by SilberE39; 04-15-2012 at 04:24 AM. Reason: Automerged Doublepost
Just wanted to drop some info on my experience with the BC Racing BR coilovers so far. I have put about 5K miles on the setup and I am extremely happy with the ride quality. I had everything corner balanced and the car handles like its on rails. AWESOME! This has easily been the best purchase I made for this car so far. Worth every penny.
never mind
Last edited by djkev; 07-01-2012 at 03:50 PM.
whats the difference between the normal kit and the one with swift springs?
03 540i6 ///M-Sport #684
Evosport Underdrive Pulleys
M60 Manifold
E60 545i shifter w/ ZHP knob
Michelin Pilot SuperSports
M5 front/rear sway bars
The Swift springs are a higher quality spring and will provide better ride quality as well as overall handling. Swift only makes springs, and they are some of the best springs available on the market, which is why they perform better than the standard BC springs (although there is nothing wrong with the standard springs).
They will make a difference in ride quality on the road, the springs paired with the BC dampers make it ride like a kit for twice the money.
"Keep Attacking..."
Site - www.circuitmotorsports.net
Email - sales@circuitmotorsports.net
Phone - 407-325-2176
Address - 2427 Forsyth Road Unit P Orlando, FL 32807
Wow? Really?
I had the same issue with my BC's. Installed them last fall. Did my first initial adjustment after installing them. Put the car on the alignment rack and went to fine tune the ride height, and found the front left siezed. I spoke with BC for about a month and a half about it. In the end they told me to go pound sand because they've "never head of this before".
Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car.
Horsepower is how fast you hit the wall, torque is how far you take the wall with you.
anyone know what the part number for the front coilovers for a 540it? I was adjusting the height on mine and noticed that there was a sticker on the coilover that said E39 I6..... I've noticed that the ride quality has been very bumpy compared to stock. I've had coilovers before on my other cars so I know that they're supposed to be stiffer, but I can pretty much feel every single bump and the ride is never smooth or comfortable..... Dampening setting is set to 12 clicks from soft. and The car has new lower thurst arms, and sway bar bushing and links.
The BC's AFAIK are standard 6K on all 4 corners. That's what I have for my 528i and I find that the ride is a little too soft. I may upgrade to 8K Swift springs at the end of the year.
All of the shocks and mounts are the same but I believe the spring rates are different. Should be something like 8K/6K for 540i's. I did notice a ride quality change with my E39 but it isn't horrendously different. The biggest change that I had to get used to was due to the pillowball mounts which transfer much more road feel and don't absorb as much vibration as your standard rubber top mounts would have. It's definitely not enjoyable on rough roads and I've learned to avoid these areas with my car...then again I'm sitting pretty low and I have nothing for tire sidewalls so I feel nothing but road on my setup.
Last edited by SilberE39; 08-02-2012 at 01:10 PM. Reason: Automerged Doublepost
I thought i6 was 6k/4k and V8 was 8k/6k.
I have 8k/6k on mine and think they're perfect.
Idk either. Lol
I like the 8k/6k combo though. 8k rear would be way too stiff IMO.
i believe the "I-06" designation is just a part number used by BC and not at all related to the engine of the car. Have a look here: http://bcracing-na.com/wp/wp-content...ATION_LIST.pdf
Interesting. I ordered the kit through a local shop and they were able to get me replacement shock and lower sleeve under warranty. I basically swapped everything over from the original damper onto the new shock.
I'm curious to know what would cause this issue. I have not had a problem since and love these coil-overs.
You're probably right on the 8K springs being too stiff for the rear. I'll likely get stiffer springs for the front and call it a day. Regardless, I won't be doing it until the end of the year and even at that point I will likely get some Swift springs if I'm going to spend the time to do it.
Last edited by SilberE39; 08-03-2012 at 09:21 AM. Reason: Automerged Doublepost
I got the 8k springs for the front. My biggest issue is that the small little bumps and are aggravating a feel like I'm going over railroad tracks. The bigger bumps and dips are fine...
I might have to try switching out the pillow mounts. I don't think I really need to adjust camber anyways...
Hi Guys
I`m just getting ready to order my BC Racing setup for my E39 540 saloon, can anyone advise which is the best size rear adjusters to go for.
I`m going with 8k 6k spring rates.
From what i`v seen, chigga is the only one to go 10k 8k.
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