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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Purchased BMW Performance Suspension springs, pair with shorter bump stops?



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      01-04-2012, 09:08 PM   #45
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Yep, they're coming from Germany. Dan@Unitedbmw can get 'em seperate from the PS kit
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      01-04-2012, 11:58 PM   #46
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Quote:
Originally Posted by cvc 22349a View Post
I can post up a pic like you did when I get 'em.
When will you get'em ? Can you also post the part numbers, let's see what realoem list them as...
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      01-05-2012, 12:50 AM   #47
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Quote:
Originally Posted by cvc 22349a View Post
I can post up a pic like you did when I get 'em.
Awesome.
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      01-05-2012, 01:28 PM   #48
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Thats great cvc 22349a, looking forward to hear your thoughts on them.

I have to say so far that the bumpstops LuckyU suggested in combination with the PS springs/FSD have been nothing short of incredible. The car rides quite smoothly now, but cornering is flatter than before. I've let another member of this board try my setup and he also agrees that the ride is quite nice. I'm very happy with the results.
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      01-05-2012, 01:36 PM   #49
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BTW, it seems we've learned alot in this thread, it would be nice to capture this information as a sticky at the top of the page, or at least change the title of the thread so it might help more folks.
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      01-05-2012, 03:46 PM   #50
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I just ordered the m3/z4 bumpstops. I have the ZSP package on my 335 E90. I will take a picture comparing them when I get my new Bumpstops and replace them with my stock ones. Whenever that will be. I guess it depends on when I get my new bumpstops. Don't hold your breath.
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      01-06-2012, 11:48 AM   #51
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Quote:
Originally Posted by cvc 22349a View Post
Yep, they're coming from Germany. Dan@Unitedbmw can get 'em seperate from the PS kit
cvc - What is the turnaround time for the v2 bumpstops ? I prob should go same route so I'm curious to find out more...
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. BMW Perf: springs + v1 dampers
. Short Shifter + ZHP M weighted shift knob. CDV delete.
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      01-07-2012, 05:26 PM   #52
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Quote:
Originally Posted by DaanBMW View Post
cvc - What is the turnaround time for the v2 bumpstops ? I prob should go same route so I'm curious to find out more...
Haven't received them yet; Dan said about 2-3 weeks
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      01-08-2012, 07:20 PM   #53
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Quote:
Originally Posted by jwong77 View Post
Thats great cvc 22349a, looking forward to hear your thoughts on them.

I have to say so far that the bumpstops LuckyU suggested in combination with the PS springs/FSD have been nothing short of incredible. The car rides quite smoothly now, but cornering is flatter than before. I've let another member of this board try my setup and he also agrees that the ride is quite nice. I'm very happy with the results.
Right on
Maybe we can try eachother's rides when I'm down at Sonic MS for the PS springs..
Did you install the Dinan rear shock mounts?
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      05-03-2012, 01:55 PM   #54
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This is proving to be a very interesting thread.

I have tried FSD/Eibach Pro-kit previously and was never really happy with it, something didnt feel quite right somehow.

Could it have been the reduced suspension travel combined with the original bumpstop interference issue?

Also, why do you Guys think that the BMW Performance (yellow) springs work even better than Eibach?

Thanks

Yves
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      05-03-2012, 02:15 PM   #55
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Quote:
Originally Posted by YvesD View Post
Also, why do you Guys think that the BMW Performance (yellow) springs work even better than Eibach?
While I don't have 1st hand experience with both, Eibach's are not really highly regarded from all I've read. You can see their rate is also a bit on the softer side (unless you get slammed on race springs). The BMW PS on the other hand I've not read anyone complain, to the contrary. I'm super-happy with my ride now compared to ZSP, but it's not only the yellow spring I've put on...

Just make sure you use the correct bumpstops for the application.
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      05-03-2012, 02:32 PM   #56
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Thats interesting as FSD/Eibach seems to be the default option for most people? Perhaps the tide is changing as different combos are tried out...

I would really like to try FSD out again but need to get the best spring match right this time.

Matching the Performance spring with the V2 bumpstops makes a lot of sense to me.

Can someone give me Dan@Uniteds email address please?

Yves
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      05-03-2012, 04:59 PM   #57
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Quote:
Originally Posted by YvesD View Post
Can someone give me Dan@Uniteds email address please?
You can pm him, or post on one of his threads on the 1 forum - use same login as here. (I don't have his address.)
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. BMS Powerbox. Cyba scoops + charcoal delete. Wavetrac LSD
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. Short Shifter + ZHP M weighted shift knob. CDV delete.
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      05-04-2012, 03:22 PM   #58
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So, reading this again, you are looking for more 'performance' from your springs rather than 'comfort'?

The BMW spring set is stiffer than Eibach PK so should be a bit less comfortable on the road too. Correct?

Yves

Quote:
Originally Posted by DaanBMW View Post
While I don't have 1st hand experience with both, Eibach's are not really highly regarded from all I've read. You can see their rate is also a bit on the softer side
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      05-04-2012, 05:08 PM   #59
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Quote:
Originally Posted by YvesD View Post
So, reading this again, you are looking for more 'performance' from your springs rather than 'comfort'?

The BMW spring set is stiffer than Eibach PK so should be a bit less comfortable on the road too. Correct?
Depends... on many things.... On bad roads it feels less comfortable vs. ZSP. On normal roads the ride is more comfortable because you finally get some damping from the shocks, whereas the ZSP felt "empty". I would not swap my current spring/shock combo for the original ZSP even from a strict comfort standpoint (this is highly subjective, but true), and except for the few encounters of really bad roads (think rail crossings) overall the ride is better.

I did it for better handling but without losing too much comfort - and it's exceeded my expectations. Compared to my VW where I've put bilsteins sports + h&r sports, the BMW PS is light years better for both handling and comfort.
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      05-16-2012, 01:35 AM   #60
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Does anyone know if the BMW Performance bumpstops are shorter than the E36/Z4 ones?

Cheers

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      05-16-2012, 10:56 AM   #61
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Quote:
Originally Posted by YvesD View Post
Does anyone know if the BMW Performance bumpstops are shorter than the E36/Z4 ones?

Cheers

Yves
The front E36 M3 bumpstops are shorter and softer than the new BMW PS bstops for our cars. The E85 Z4 rear bstops are approx the same height as the new BMW PS bstops. Someone measured the heights in another thread and I compared w/my measurements.
If I were going to use lowering springs other than BMW PS, I'd use the E36 M3 F and E85 Z4 R bstops.
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      05-16-2012, 11:34 AM   #62
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I just purchased V2 Perf Susp Kit and can post pics of parts and P/Ns if anybody is interested before they get installed on Fri.
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      05-16-2012, 11:56 AM   #63
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Quote:
Originally Posted by cvc 22349a View Post
The front E36 M3 bumpstops are shorter and softer than the new BMW PS bstops for our cars. The E85 Z4 rear bstops are approx the same height as the new BMW PS bstops. Someone measured the heights in another thread and I compared w/my measurements.
If I were going to use lowering springs other than BMW PS, I'd use the E36 M3 F and E85 Z4 R bstops.
This is the thread where I posted the measurements: http://www.e90post.com/forums/showthread.php?t=687825

This is a thread with the other measurements: http://www.e90post.com/forums/showthread.php?t=641140

This is a thread with a photo of the M3 front vs. OEM Sport: http://www.e90post.com/forums/showthread.php?t=437485

I hope this information helps someone else. It took forever for me to piece all of the information together. I am happy with the M3/Z4 combo with H&R sport spring so far. I installed them this past weekend and will post pics and a review of the setup at some point...
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      05-16-2012, 12:10 PM   #64
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cvc, ENIGMA, Sonorous,

Thanks for all the info, very helpful.

My set up is going to be Koni FSD & Eibach Pro-kit with Dinan rear shock mounts.

Sounds like the E36/Z4 route is best for me.

Cheers

Yves
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      05-16-2012, 12:36 PM   #65
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Hey,
I initially bought the e36 bumpstop for the fronts and once I got the V2 performance bumpstop P/N, I returned e36 one. From what I remember the front V2 Perf bumpstop was smaller than the e36 one.

Does anyone have a pic of them side by side.
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      05-16-2012, 03:07 PM   #66
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Based on sonorous' measurements and mine, the E36M3 F bstops are approx. 1/4" shorter than the F PS bstops.
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