Springs on stock struts dangerous?

Hooy · 01-20-2011, 06:02 PM

I know there are a ton of posts about how the car will feel wobblier and such, but I need a definitive answer before I pull the trigger on some springs.

I have an E92 328i and am actually concerned about high speed stability. How much do springs only affect handling for both straight line highway (hills & slopes) and cornering? Would they compromise the ability to "safely" do 120-130mph?

Tee212 · 01-20-2011, 06:13 PM

Not dangerous but they will wear out sooner. You will gradually feel the slop within 10xxx miles

eunsei · 01-21-2011, 03:16 AM

I have a e90 w/ sport package. Does the sport set up deal with this issue?

V1_R · 01-21-2011, 04:02 AM

I have Eibach lowering springs on stock shocks and they feel great, both straight line high speed and cornering.

I have a few pictures posted in my 'garage' on the forum if you want to see the stance.

MassBimmer · 01-21-2011, 08:07 AM

Lowering springs are not dangerous

mycoupe · 01-21-2011, 11:05 AM

struts need to be valved for the spring rates you are running...this is why it is not a good idea to use lowering springs on stock struts. Also, since the springs sit the car lower, you WILL bottom out the strut rod in the strut body over larger bumps. This will blow out your seals and destroy your struts. I've had it happen on previous cars and even blown out Koni yellows with ground control coilovers before in less than a year due to not revalving them for the stiffer springs. Just a lose lose situation man.

fdriller9 · 01-21-2011, 12:05 PM

Yea I would save up for a spring/shock combo or coil setup.....it's ok if you're planning on upgrading within the next couple months but anything beyond that is risky.

It sucks not having a suspension. My family's old range rover air ride suspension pump went out and it was NOT fun to ride in. lol

01-20-2011, 06:02 PM	#1
Hooy Colonel 205 Rep 2,770 Posts Drives: E92 328i, E92 M3 Join Date: Sep 2009 Location: Houston, TX iTrader: (12) Garage List 2008 E92 328 [5.00]	Springs on stock struts dangerous? I know there are a ton of posts about how the car will feel wobblier and such, but I need a definitive answer before I pull the trigger on some springs. I have an E92 328i and am actually concerned about high speed stability. How much do springs only affect handling for both straight line highway (hills & slopes) and cornering? Would they compromise the ability to "safely" do 120-130mph?
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01-20-2011, 06:13 PM	#2
Tee212 Banned 81 Rep 4,541 Posts Drives: yes Join Date: Oct 2008 Location: Riverside iTrader: (9) Garage List 2010 335 [8.00]	Not dangerous but they will wear out sooner. You will gradually feel the slop within 10xxx miles
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01-21-2011, 03:16 AM	#3
eunsei New Member 3 Rep 26 Posts Drives: Blk E90 330i prem, sport, navi Join Date: Jan 2011 Location: Seattle iTrader: (0)	I have a e90 w/ sport package. Does the sport set up deal with this issue?
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01-21-2011, 04:02 AM	#4
V1_R Captain 36 Rep 738 Posts Drives: G30 530i Join Date: Jul 2010 Location: Phoenix AZ iTrader: (0) Garage List 2007 335i Coupe [10.00]	I have Eibach lowering springs on stock shocks and they feel great, both straight line high speed and cornering. I have a few pictures posted in my 'garage' on the forum if you want to see the stance. __________________ G30 530i
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01-21-2011, 08:07 AM	#5
MassBimmer Major General 307 Rep 7,433 Posts Drives: 2023 i4 M50 Join Date: May 2009 Location: MA iTrader: (6) Garage List 2009 BMW [9.24]	Lowering springs are not dangerous
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01-21-2011, 11:05 AM	#6
mycoupe Banned 55 Rep 1,495 Posts Drives: 07 335i coupe 6spd Join Date: Dec 2009 Location: cincinnati, Ohio iTrader: (5)	struts need to be valved for the spring rates you are running...this is why it is not a good idea to use lowering springs on stock struts. Also, since the springs sit the car lower, you WILL bottom out the strut rod in the strut body over larger bumps. This will blow out your seals and destroy your struts. I've had it happen on previous cars and even blown out Koni yellows with ground control coilovers before in less than a year due to not revalving them for the stiffer springs. Just a lose lose situation man.
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01-21-2011, 12:05 PM	#7
fdriller9 Banned 255 Rep 7,089 Posts Drives: '06 AW 330xi Join Date: Mar 2009 Location: North Jersey/Philly/NYC iTrader: (4) Garage List 2006 330xi [6.44]	Yea I would save up for a spring/shock combo or coil setup.....it's ok if you're planning on upgrading within the next couple months but anything beyond that is risky. It sucks not having a suspension. My family's old range rover air ride suspension pump went out and it was NOT fun to ride in. lol
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