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View Full Version : speed bumps in a lowered bimmer


rshorty7
10-25-2005, 06:25 PM
I've always wondered how you go over speed bumps with lowered bimmers that are like an inch or 2 off the ground? Or even like sudden bumps in the road that you don't see until you're right on top of them. Do you scrape your front bumper and under carriage?

e30cabriolet
10-25-2005, 06:29 PM
I have broken three oil pans with my hardly lowered cabrio :( Now I have an IS lip and hate having to be uber careful. I am looking for a I lip so I have a little more room.

One thing I learned the designers of the clips knew what they were doing! I went over a speedbump, not thinking about my new oem 140.00 lip & smacked it, the clip on the driverside let go and all that was needed was for me to push the lip back on and touch up the bottom of the lip. Good (almost) as new.

rshorty7
10-25-2005, 06:32 PM
damn that sucks about your oil pans and lip e30cabriolet. but i mean is there a trick to getting over them without damage, like coming at them on an angle, or do u back up over the speed bumps in a parking lot? lol

Justin e36
10-25-2005, 06:37 PM
I have around 2.5" clearance on my lowered e36 with M3 front bumper, lip, and velocity splitters. I scrape A LOT when I come out of parking lots. I just have to take things on angles, go very slowly, and avoid underground parking garages. :)

e30cabriolet
10-25-2005, 06:37 PM
Sorry I missed the point *shiner*

I go really slowly over them, the freaking dealer here has a really steep driveway which I found out last Thursday when I went there having just gotten my car back from the bodyshop having the new front end & lip put on, naturally I scraped the sh*t out of the lip and was none too thrilled.

on the way out I went at an angle, really slowly and did not scrape.

There are about as many speed bumps (topes in Spanish) here as there are people and I hate them all! (topes not people) lol

rshorty7
10-25-2005, 06:44 PM
ok so going on angles and really slowly helps? but don't u scrape the corner of your bumper or lip then, or does it not hit somehow? like i've seen a super low bimmer go up and down a slope before but i've never seen one take a speed bump and i've always wondered how they do it.

e30cabriolet
10-25-2005, 06:54 PM
Mine is not super low (about 1/2 inch all around) but I have not scraped yet when I have been careful.

rodo
10-25-2005, 07:08 PM
you're from mexico, i'm from argentina :D muy bien, me gusta ver a alguien latino aca! :)

T.Dot_E30
10-25-2005, 07:09 PM
I've only smashed one Fiberglass 'is lip. A few scraps on my oil pan, nothing major.

Now I have an oem lip.

rshorty7
10-25-2005, 07:22 PM
how low are you to the ground?

e30cabriolet
10-25-2005, 07:55 PM
No soy latino. Yo soy gringo nacio de Manhattan y mi familia ir a California cuando hace trece anos. Ahora vive en Ixtapa y Morelia.

My Spanish sucks but I did not need to tell you that you can see it!

lol

Gracias

wd948
10-25-2005, 08:23 PM
i have the same problems, there are some i can go over really slowly and not sratch but others its just impossibile, especially in holland

BMW BMXer
10-25-2005, 10:40 PM
Never hit anything.

bimmer318ti
10-26-2005, 12:23 AM
Thats why there are hydraulics .. with a push of a button your BMW turns into a 4x4 :D jjks.

Mystikal
10-26-2005, 12:55 AM
Front lip 4" off the ground last summer, I scraped lightly on driveways at least once a week. Now it's 4.75" or so off (coilovers), and I haven't touched it all year.

With high spring rates anything is possible. My car doesn't even really bounce going in and out of places, hence the lack of scraping (even with some momentum).

Eurostyle
10-26-2005, 01:16 AM
My front skirt was 3" off the ground, scraped all the time..to the point where one of the bolts holding my diffuser got ripped out half way....one of my fog lights also came off at the same time! lol

jeffrie
10-26-2005, 07:09 AM
I bought an X-brace to save the oil pan, so now I don't really care about the noises from down their. Also have coil overs, now that Mystical said it I don't recall hitting anything since I'v put them on.

moregothanshow
10-26-2005, 09:21 AM
yup! x-brace is a god send for lowered e36's...

BMWags
10-26-2005, 12:35 PM
are there such things for e30's as well? x-braces i mean?

e30cabriolet
10-26-2005, 03:41 PM
There was a protector available but it is nla I have seen them from time to time on ebay or in forums for between 175.00-200.00.

http://www.davelength.net/car/images/skidplate01.jpg

http://www.davelength.net/car/images/skidplate04.jpg

PN's I have found are:

51 71 1 929 451 - non-M up to 9/87

51 71 1 971 001 - non-M from 9/87

51 71 1 961 905 - M3

51 71 1 943 101 - iX

bmwm5lover
10-26-2005, 09:37 PM
I fly over them with my 4X4 e30;

rshorty7
10-26-2005, 10:02 PM
I fly over them with my 4X4 e30;

do you have hydraulics on your e30?

jeffrie
10-26-2005, 10:11 PM
Speed get's you anywere a 4X4 can. & Faster....

e30cabriolet
10-26-2005, 10:30 PM
Front lip 4" off the ground last summer, I scraped lightly on driveways at least once a week. Now it's 4.75" or so off (coilovers), and I haven't touched it all year.

With high spring rates anything is possible. My car doesn't even really bounce going in and out of places, hence the lack of scraping (even with some momentum).

My car is slightly lowered (M3 springs & Bilstein Touring shocks & struts). I just measured my lip is 4.70 off the ground. How the heck is yours only .70 lower?

*EDIT* I saw the 4 # missed the 4.75 damn you are higher yet your car sits lower? WOW. Mebee I need coilovers.

jeffrie
10-26-2005, 10:35 PM
Coil overs can be fine tuned to 1/16th of an inch, well mine can at least. I have a good 6 inches to play with, while being that specific if anal enough.

e30cabriolet
10-26-2005, 10:40 PM
oic ty. Yes I need coilovers. Especially now that I have a 140.00 is lip to protect.