M3/M4 lower control arms.

rwalker · 04-25-2016, 12:14 PM

Quote:

Originally Posted by pdx2er

I'm also interested in augerpro's question. Are people still doing the M3/M4 LCAs now that the M2 is out? Seems like the M2 would be more plug and play. Anyone done this?

The parts in question are exactly the same on the M2, M3, and M4.

http://www.realoem.com/bmw/enUS/part...&q=31122284531
http://www.realoem.com/bmw/enUS/part...&q=31122284529

pikcachu · 04-25-2016, 02:26 PM

Quote:

Originally Posted by pdx2er

I'm also interested in augerpro's question. Are people still doing the M3/M4 LCAs now that the M2 is out? Seems like the M2 would be more plug and play. Anyone done this?

the M2 probably uses the M4 LCA's lol
would be nice to compare part numbers

There you go http://www.realoem.com/bmw/enUS/part...&q=31122284530

Same for the tension strut http://www.realoem.com/bmw/enUS/part...&q=31122284532

puffalo · 04-26-2016, 01:21 PM

Was wondering if any of the other Ops have tried creating more negative camber by upgrading the spindles on their M235. Seems BMW makes OEM spindle upgrades to correct for wheel alignment issues after an accident has "tweaked" the front end alignment ? Would this be a viable way to change camber without changing out the LCA and or TS. Thanks

rwalker · 04-26-2016, 05:48 PM

Quote:

Originally Posted by puffalo

Was wondering if any of the other Ops have tried creating more negative camber by upgrading the spindles on their M235. Seems BMW makes OEM spindle upgrades to correct for wheel alignment issues after an accident has "tweaked" the front end alignment ? Would this be a viable way to change camber without changing out the LCA and or TS. Thanks

M235i already has those spindles

Tpeterson · 04-26-2016, 06:10 PM

Quote:

Originally Posted by rwalker

M235i already has those spindles

So then, that would make them an option for more negative camber on a 228i?
But thinking out loud, why not just use M3/M4 LCA anyway?

rwalker · 04-26-2016, 06:18 PM

Quote:

Originally Posted by Tpeterson

So then, that would make them an option for more negative camber on a 228i?

Possibly... I can't find where I read that those -30min spindles were already on these cars, and I can't confirm it in realoem.com. Perhaps these are a useful, pricey way to get an additional -0.5deg. Easy enough to crawl under the car, pull the part numbers and check. I'd do that right now if I weren't on travel.

Quote:

Originally Posted by Tpeterson

But thinking out loud, why not just use M3/M4 LCA anyway?

IMHO, no reason not to use the M3/M4 LCA except for the clearance penalties and the slightly higher NVH.

Tpeterson · 04-26-2016, 08:29 PM

Thanks

Bee Pee · 04-28-2016, 01:28 AM

If running coilovers, perhaps sniff out a set of these m4 GTS top mounts. From the CGI cartoon below, front strut top mounts look offset, perhaps an alternate OEM mod to m4 LCAs for built-in negative camber when upgrading to coilovers.

Depending price and availability etc, could be a viable noise-free alternative to aftermarket camber plates if these parts can be purchased from BMW at a reasonable price and then made to fit 3 or 5 bolt mounts on our cars......

BP

rwalker · 05-08-2016, 01:28 PM

Quote:

Originally Posted by rwalker

Possibly... I can't find where I read that those -30min spindles were already on these cars, and I can't confirm it in realoem.com. Easy enough to crawl under the car, pull the part numbers and check. I'd do that right now if I weren't on travel.

I crawled under the car, but can't decipher the part numbers...

Taunto · 05-09-2016, 07:38 PM

Earlir in the thread I read someone saying that the LCA are not recommended on a X-Drive vehicle due to the stress it would put on the front driveline.
I dont think its going to put any extra stress on the driveline at all.

My question is, will they fit on a Xdrive? is the Subframe mounting spots the same on the Xdrive as they are on the RWD?

Bee Pee · 05-10-2016, 12:57 AM

Taunto

M4LCAs are longer than stock so pushes hub further outboard. Probably not great for the front driveshaft and swivels

MyMiniM3 · 05-10-2016, 09:40 AM

So the camber that is shredding the outside of my M235i's tired is due to the control arms? I was told it could be fixed by camber plates? Does anyone know the true answer?

pikcachu · 05-10-2016, 09:52 AM

Quote:

Originally Posted by MyMiniM3

So the camber that is shredding the outside of my M235i's tired is due to the control arms? I was told it could be fixed by camber plates? Does anyone know the true answer?

It's not due to the control arms themselves... it's due to the little camber...

The only 2 ways to get more camber would be with the M4 LCA's or with camber plates....

M4 LCA's is the cheaper and cheaper to install option but this gives you fixed camber....

Camber plates are more expensive and can make noise but you have full adjustability

MyMiniM3 · 05-10-2016, 09:54 AM

Quote:

Originally Posted by pikcachu

Quote:

Originally Posted by MyMiniM3

So the camber that is shredding the outside of my M235i's tired is due to the control arms? I was told it could be fixed by camber plates? Does anyone know the true answer?

It's not due to the control arms themselves... it's due to the little camber...

The only 2 ways to get more camber would be with the M4 LCA's or with camber plates....

M4 LCA's is the cheaper and cheaper to install option but this gives you fixed camber....

Camber plates are more expensive and can make noise but you have full adjustability

Wow..you just cleared up a lot of ??s I had about this problem thank you!!!

MyMiniM3 · 05-10-2016, 10:09 AM

How does the camber affect the appearance? Sorry a newb to the suspension world.

jaboyd · 05-10-2016, 03:24 PM

Increased negative camber pushes the bottom of the tire outward and the top inward. If you like a more "flush look" adding a modest spacer will move tire outward.

HP Autosport · 05-10-2016, 03:40 PM

Quote:

Originally Posted by pikcachu

It's not due to the control arms themselves... it's due to the little camber...

The only 2 ways to get more camber would be with the M4 LCA's or with camber plates....

M4 LCA's is the cheaper and cheaper to install option but this gives you fixed camber....

Camber plates are more expensive and can make noise but you have full adjustability

What he said!

Some camber plates are quieter than others though.

pikcachu · 05-10-2016, 04:58 PM

Quote:

Originally Posted by HP Autosport

What he said!

Some camber plates are quieter than others though.

Ya... they say Dinan are actually pretty good but don't have personal experience

HP Autosport · 05-10-2016, 05:14 PM

Quote:

Originally Posted by pikcachu

Ya... they say Dinan are actually pretty good but don't have personal experience

Vorshlag should be out soon.

JoeyF228 · 05-12-2016, 09:34 PM

Anybody considering trying M2 front lower control arms? Going to see if my BMW buddy can check the part numbers tomorrow and see how much they are.

rwalker · 05-12-2016, 10:02 PM

Quote:

Originally Posted by JoeyF228

Anybody considering trying M2 front lower control arms? Going to see if my BMW buddy can check the part numbers tomorrow and see how much they are.

M2 LCAs are the same parts as on the M3/4:
http://www.realoem.com/bmw/enUS/part...&q=31122284529

ECS Tuning has great prices:
https://www.ecstuning.com/b-genuine-...t/31122284529/

JoeyF228 · 05-12-2016, 11:02 PM

Quote:

Originally Posted by rwalker

M2 LCAs are the same parts as on the M3/4:
http://www.realoem.com/bmw/enUS/part...&q=31122284529

ECS Tuning has great prices:
https://www.ecstuning.com/b-genuine-...t/31122284529/

I have some buddies at the dealer where i bought my car, used to work there also so they will hook me up on them. Not sure if this is frowned upon but if you guys want to do a group buy i bet i could get a good deal.

04-26-2016, 01:21 PM	#91
puffalo New Member 8 Rep 6 Posts Drives: M235 Coupe 6MT RWD Join Date: Apr 2016 Location: EAST ROCKAWAY, New York iTrader: (0)	Was wondering if any of the other Ops have tried creating more negative camber by upgrading the spindles on their M235. Seems BMW makes OEM spindle upgrades to correct for wheel alignment issues after an accident has "tweaked" the front end alignment ? Would this be a viable way to change camber without changing out the LCA and or TS. Thanks
	Appreciate 0 Quote

04-26-2016, 08:29 PM	#95
Tpeterson Lieutenant 157 Rep 580 Posts Drives: 228i MSport/THP/MT/ Join Date: Feb 2015 Location: Eagan Mn iTrader: (0)	Thanks
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04-28-2016, 01:28 AM	#96
Bee Pee Brigadier General 1779 Rep 4,515 Posts Drives: AW M2 DCT Join Date: Jun 2010 Location: SW London iTrader: (3)	If running coilovers, perhaps sniff out a set of these m4 GTS top mounts. From the CGI cartoon below, front strut top mounts look offset, perhaps an alternate OEM mod to m4 LCAs for built-in negative camber when upgrading to coilovers. Depending price and availability etc, could be a viable noise-free alternative to aftermarket camber plates if these parts can be purchased from BMW at a reasonable price and then made to fit 3 or 5 bolt mounts on our cars...... BP
	Appreciate 0 Quote

05-09-2016, 07:38 PM	#98
Taunto Car Enthusiast 282 Rep 501 Posts Drives: 2016 BMW M235 X-drive Join Date: Apr 2011 Location: Regina iTrader: (0)	Earlir in the thread I read someone saying that the LCA are not recommended on a X-Drive vehicle due to the stress it would put on the front driveline. I dont think its going to put any extra stress on the driveline at all. My question is, will they fit on a Xdrive? is the Subframe mounting spots the same on the Xdrive as they are on the RWD?
	Appreciate 0 Quote

05-10-2016, 12:57 AM	#99
Bee Pee Brigadier General 1779 Rep 4,515 Posts Drives: AW M2 DCT Join Date: Jun 2010 Location: SW London iTrader: (3)	Taunto M4LCAs are longer than stock so pushes hub further outboard. Probably not great for the front driveshaft and swivels
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05-10-2016, 09:40 AM	#100
MyMiniM3 5 30 Rep 197 Posts Drives: 16" BMW M235i Join Date: Feb 2016 Location: Texas iTrader: (1)	So the camber that is shredding the outside of my M235i's tired is due to the control arms? I was told it could be fixed by camber plates? Does anyone know the true answer? __________________ 16' M235i Active Autowerkes Stage 2 Tune/DP/FMIC/CP - Dinan CAI/Lowering Springs - 19x8.5/19x9.5 Forgestar CF5V Bronze Burst
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05-10-2016, 10:09 AM	#103
MyMiniM3 5 30 Rep 197 Posts Drives: 16" BMW M235i Join Date: Feb 2016 Location: Texas iTrader: (1)	How does the camber affect the appearance? Sorry a newb to the suspension world. __________________ 16' M235i Active Autowerkes Stage 2 Tune/DP/FMIC/CP - Dinan CAI/Lowering Springs - 19x8.5/19x9.5 Forgestar CF5V Bronze Burst
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05-10-2016, 03:24 PM	#104
jaboyd Private First Class 39 Rep 127 Posts Drives: 2015 M235i black/black Join Date: Dec 2015 Location: TN iTrader: (0)	Increased negative camber pushes the bottom of the tire outward and the top inward. If you like a more "flush look" adding a modest spacer will move tire outward.
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05-12-2016, 09:34 PM	#108
JoeyF228 Private First Class 27 Rep 103 Posts Drives: 2015 228i M Sport Join Date: Apr 2016 Location: Arkansas iTrader: (0)	Anybody considering trying M2 front lower control arms? Going to see if my BMW buddy can check the part numbers tomorrow and see how much they are.
	Appreciate 0 Quote