Results 1 to 14 of 14

Thread: Question about bilsteim shocks

  1. #1
    Join Date
    Sep 2010
    Location
    Finland
    Posts
    125
    My Cars
    bmw 850i M-tech

    Question about bilstein shocks

    Hi guys.
    I currently have h&r front springs in my car but i find that the front sits a bit too low. The shocks are stock boges and are really soft. When driving in highway it sometimes feels like i'm in a boat. I'm going to get bilstein shocks anyway but i'm wondering that does the bilstein shocks raise the car at all or do i have to buy different springs also.
    Last edited by mikae31; 09-12-2017 at 10:39 AM.

  2. #2
    Pelican Parts's Avatar
    Pelican Parts is offline Senior Member Supporting Vendor
    Join Date
    Aug 2013
    Location
    Harbor City, CA
    Posts
    2,991
    My Cars
    '02 E39 Touring
    Hello - which year is your 8 series and I'm guessing that it does not have the EDC option? The Bilstein shocks are going to put the car at stock height and stiffen up the suspension considerably. Which ones were you looking at? The B8s?
    Your Trusted Source For DIY and Parts
    FREE SHIPPING over $99 click here
    BMW Parts | DIY Tech Articles | Facebook | Twitter | Instagram | YouTube | Promos
    888.280.7799 | 6am - 5pm PST



  3. #3
    Join Date
    Sep 2010
    Location
    Finland
    Posts
    125
    My Cars
    bmw 850i M-tech
    Quote Originally Posted by Pelican Parts View Post
    Hello - which year is your 8 series and I'm guessing that it does not have the EDC option? The Bilstein shocks are going to put the car at stock height and stiffen up the suspension considerably. Which ones were you looking at? The B8s?
    My car is 93 and doesn't have edc. Bilstein doesn't offer anything else than b6 to these cars. Stock height ?? Hardly. I also have another eight with eibach springs and bilsteins and it isn't sitting at stock height.

    It's just that with this car the previous owner had h&r springs installed but with stock boges it is a bit too low. I'd like to know does the bilsteins shocks raise the height at all. I have been under the impression that bilsteins do raise the car a bit but would like to know for sure.
    Last edited by mikae31; 09-12-2017 at 02:57 PM.

  4. #4
    Join Date
    Nov 2013
    Location
    Indianapolis, IN
    Posts
    933
    My Cars
    97 850CI
    Springs set the ride height, not shocks. Shocks control the springs, and the ride of the car. Your problem is the H&R rear springs are too soft. Try to get the CSI rear springs to firm up the rear and get rid of the boat like ride.
    Desecrator of all things Sacred

  5. #5
    Join Date
    Sep 2010
    Location
    Finland
    Posts
    125
    My Cars
    bmw 850i M-tech
    Quote Originally Posted by 72tpik5 View Post
    Springs set the ride height, not shocks. Shocks control the springs, and the ride of the car. Your problem is the H&R rear springs are too soft. Try to get the CSI rear springs to firm up the rear and get rid of the boat like ride.
    Then how come some folks here say that with bilsteins the car sits a bit higher than other shocks??

  6. #6
    Join Date
    Nov 2013
    Location
    Indianapolis, IN
    Posts
    933
    My Cars
    97 850CI
    Good question. Unfortunately, I do not have an answer.
    Desecrator of all things Sacred

  7. #7
    Join Date
    May 2006
    Location
    Woodland Hills, CA
    Posts
    2,849
    My Cars
    Disco II 850i MERs 750il
    It's because the Bilsteins are gas pressurized.

  8. #8
    Join Date
    Dec 2013
    Location
    San Antonio
    Posts
    139
    My Cars
    850i, '76 2002, '76 530
    I am interested in following this thread because i would like to change out shocks and springs once my car is running. I would like to lower the car an inch or so and increase the spring rate to reduce some body roll. But I havent even driven the car yet! The car has 245/50R16 tires on it now. Height at front fender well above center of wheel is 27 1/8"/ 689 mm and 27 3/16"/ 690.5 mm at center of wheel well at the rear. What are the most popular combinations of springs/struts for a lower/stiffer ride? I do like the Bilstein Sports I have on my old bimmers.
    Thanks,

  9. #9
    Join Date
    Aug 2007
    Location
    San Ramon, CA
    Posts
    778
    My Cars
    850Ci, M5, Model-S P85D
    Quote Originally Posted by JDP530 View Post
    I am interested in following this thread because i would like to change out shocks and springs once my car is running. I would like to lower the car an inch or so and increase the spring rate to reduce some body roll. But I havent even driven the car yet! The car has 245/50R16 tires on it now. Height at front fender well above center of wheel is 27 1/8"/ 689 mm and 27 3/16"/ 690.5 mm at center of wheel well at the rear. What are the most popular combinations of springs/struts for a lower/stiffer ride? I do like the Bilstein Sports I have on my old bimmers.
    Thanks,
    Instead of following a thread that may go no where or not detail what you need, why not go directly to the good stuff...
    https://www.bimmerforums.com/forum/s...trut+cartridge
    Last edited by m6bigdog; 09-13-2017 at 02:32 AM.

  10. #10
    Join Date
    Sep 2010
    Location
    Finland
    Posts
    125
    My Cars
    bmw 850i M-tech
    Quote Originally Posted by m6bigdog View Post
    Instead of following a thread that may go no where or not detail what you need, why not go directly to the good stuff...
    https://www.bimmerforums.com/forum/s...trut+cartridge
    I have read your topics but haven't really found an straight answer to this.
    Can you tell me that if i change my shocks to bilsteins do i get a small lift, about 10mm, or do i need to swap to eibach springs?

  11. #11
    Join Date
    Aug 2007
    Location
    San Ramon, CA
    Posts
    778
    My Cars
    850Ci, M5, Model-S P85D
    Quote Originally Posted by mikae31 View Post
    I have read your topics but haven't really found an straight answer to this.
    Can you tell me that if i change my shocks to bilsteins do i get a small lift, about 10mm, or do i need to swap to eibach springs?
    Yes, 10mm is pretty close:
    Bilstein shock are high pressure gas shocks (250-350 internal gas pressure) which produce an extension force (based on the shock rod diameter) that provides a suspension lift proportional to the spring rate.
    The H&R front springs are approximately 160 lbs/in and I anticipate the Bilstein extension force is somewhere between 50-80 lbs.
    Therefore if the front strut has an extension force of 65lbs then the suspension lift due to the shock extension force will be approximately 65/160=.41".
    The extension force it easy to measure with a bathroom scale. Just place a wood block on the scale (to protect the scale) with the shock on top, zero the scale, then push down on the shock to collapse the strut to what you anticipate will be the ride height.
    Calculating the rear suspension lift is more complicated as the wheel rate is but a fraction (.36) of the actual spring rate (410 lbs/in stock) that the extension force is working with to lift the rear suspension. However, you can anticipate a similar increase in ride height.

  12. #12
    Join Date
    Sep 2010
    Location
    Finland
    Posts
    125
    My Cars
    bmw 850i M-tech
    Can someone please clarify just exactly how much lowering difference there is between h&r and eibach front springs?

    I'd like to know for sure that if i go ahead and change my springs from h&r to eibach do i get a small lift or not?

  13. #13
    Join Date
    Jun 2012
    Location
    Woodstock, GA
    Posts
    140
    My Cars
    2001 BMW 540i6
    Get KAW springs from Europe and Bilstein sports. They sit the lowest.

  14. #14
    Join Date
    Sep 2010
    Location
    Finland
    Posts
    125
    My Cars
    bmw 850i M-tech
    Quote Originally Posted by killian665 View Post
    Get KAW springs from Europe and Bilstein sports. They sit the lowest.
    You didn't read previous posts? My goal is to get a bit higher. Also those KAW springs are pretty much the worse thing you can put in such a heavy car.

    I have done my research and read topics that are related to springs and shocks. I must say i'm a bit confused. Can someone please confirm me this?

    When using billstein shocks car always sits a bit (about 10mm) higher than with other shocks, no matter what the springs are?

    I'm asking because i have seen photos with cars equipped with eibachs or h&r's and it seems some are lower than the others.
    Last edited by mikae31; 09-26-2017 at 10:28 AM.

Similar Threads

  1. Question about Monroe shocks hardware.
    By Kell in forum 1992 - 1999 M3 (E36)
    Replies: 12
    Last Post: 12-18-2005, 03:36 PM
  2. Quick Question about Rear Shock Mount Replacement
    By Gforce in forum 1991 - 1999 (E36)
    Replies: 4
    Last Post: 06-27-2005, 06:18 PM
  3. Question about Springs/Shocks?
    By WTFCIRCUS in forum 1992 - 1999 M3 (E36)
    Replies: 6
    Last Post: 06-01-2005, 03:58 AM
  4. Question about stock shocks/struts....
    By madsedan in forum 1992 - 1999 M3 (E36)
    Replies: 3
    Last Post: 04-20-2004, 10:02 PM
  5. Question about springs, shocks, and STRUTS
    By dave is cool in forum 1992 - 1999 M3 (E36)
    Replies: 8
    Last Post: 04-11-2003, 11:50 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •