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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 12-29-2013, 09:12 PM
Blue Demon Blue Demon is offline
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Lowering Spring Eibach

How low should be lower my car with Eibach springs for 20 inch rims? I was thinking about .5 for the rear and 1.5 for the front. Also, would it ride bouncy on the highway? Any thoughts or suggestion on it.
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  #2  
Old 12-30-2013, 04:51 AM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by Blue Demon View Post
How low should be lower my car with Eibach springs for 20 inch rims? I was thinking about .5 for the rear and 1.5 for the front. Also, would it ride bouncy on the highway? Any thoughts or suggestion on it.

Whelp, I wasn't aware that Eibach made springs for 20" rims.

But Koni makes shocks that can be matched to Eibach's. Yellow they are, and those you should buy, for shocks unmatched to springs are the road to Perdition!





Blue Demon, and you want to avoid having that handle apply to this job, which if your purchase Eibach Sport linear springs can lower your ride 1/2 - 3/4" from Sport suspension stance. See and talk to THESE FOLKS.

.

Last edited by CALWATERBOY; 12-30-2013 at 04:52 AM.
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  #3  
Old 12-30-2013, 09:42 AM
fdriller9 fdriller9 is offline
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Any ride lowered with JUST lowering springs will be bouncy.

Think about it...your stock shocks are valve for the stock springs. When you lower, you move that range and the valving becomes incorrect.

I have no comment about the 20s...well I do, but I'm not going to say it.
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Old 12-30-2013, 09:49 AM
hondo402000 hondo402000 is offline
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I would believe that BMW would take into account the spring rates, shock valving and the tire side wall height when configuring the suspension
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Old 12-30-2013, 09:03 PM
techietaichi techietaichi is offline
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I ride H&R Sport Springs on my stock shocks and I'm not "bouncy". It was dropped by Turner Motorsports almost a year ago pretty evenly, 1.3 in the rear and 1.4 up front if my memory serves me right and I can fly like I was on a fully stock suspension. However, I do remember them mentioning that my bump stops were slightly modified, that might explain the non-bounciness. Hmm? And about those "dubs", you sure you want to do that man? 18's are spot on, 19's look good if you're conservative about the style, 20's.... You sure, you sure? Are you going to "stance" this fine German auto?
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Last edited by techietaichi; 12-30-2013 at 09:08 PM.
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Old 12-30-2013, 09:59 PM
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captainaudio captainaudio is offline
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Originally Posted by techietaichi View Post
I ride H&R Sport Springs on my stock shocks and I'm not "bouncy". It was dropped by Turner Motorsports almost a year ago pretty evenly, 1.3 in the rear and 1.4 up front if my memory serves me right and I can fly like I was on a fully stock suspension. However, I do remember them mentioning that my bump stops were slightly modified, that might explain the non-bounciness. Hmm? And about those "dubs", you sure you want to do that man? 18's are spot on, 19's look good if you're conservative about the style, 20's.... You sure, you sure? Are you going to "stance" this fine German auto?
If its worth doing its worth overdoing.

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Old 12-31-2013, 01:44 PM
techietaichi techietaichi is offline
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If its worth doing its worth overdoing.
Ok, that's just bleeping ridiculous!
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Old 12-31-2013, 02:25 PM
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captainaudio captainaudio is offline
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Originally Posted by techietaichi View Post
Ok, that's just bleeping ridiculous!


Gotcha!



Photoshop!

CA
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Last edited by captainaudio; 12-31-2013 at 02:31 PM.
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  #9  
Old 01-01-2014, 03:50 PM
riviera1969 riviera1969 is offline
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I have 19"

I have Eibach springs 1.5 lower in front and 1" in back, also 19" 235-35-19 in front and 265-30-19 in the back. You do change the ride depends on runflats or lower profile tires.
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  #10  
Old 03-08-2014, 02:34 AM
notanotherbmw notanotherbmw is offline
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Im looking at the same. I put lowered springs in a Commodore with the standard struts and they are buggered now. If you think about it, the struts are for the standard height. So lowering them MUST add pressure to them and they eventually give way. I want to put MSport or HR springs in, but I really think they need the struts too. What do you think?
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