BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Cosmetic/Visual (Exterior + Interior) Modifications
 
INDustry distribution
Post Reply
 
Thread Tools Search this Thread
      07-10-2012, 03:37 PM   #1
radiantm3
Apex Everything!
 
radiantm3's Avatar
 
Drives: >1000 HP in my garage
Join Date: Sep 2008
Location: Danville, CA

Posts: 3,815
iTrader: (6)

Garage List
2011 E92 M3  [4.80]
2013 BMW X5M  [4.33]
Warning: 3M tape is not enough for some front splitters

What happened to my 2 month old $2000 Challenge GT3 front splitter:



First of all I want to state that no one is to blame for this but me (for the most part). I got this part about 2 months ago and we installed it using 4 factory screws and the 3M tape that was already applied to it. After a few weeks of driving I noticed one side of the double-sided tape start to come a bit loose in some areas. I assumed that it might have been caused by the clearbra install I had done to the splitter about an hour after we installed it. I thought maybe some of the soapy liquid from the clear bra might have dripped into the cracks and loosened things up.

I took the car to Laguna Seca a few days later and by the end of the day half the splitter was hanging off. The other side was stuck on pretty good still so I just drove home without removing it. When I got home I removed the splitter and removed all of the double-sided tape. This time, we completely prepped the splitter and the bottom of my bumper with adhesion promoter before applying a new strip of tape. When we were done, I made sure to let the car sit for a good 1.5 hours and then drove it home (taking only local streets at no more than 40mph) to let it sit for another day.

Splitter seemed fine and stuck well for the next few weeks. Then I had a track day at Thunderhill which is about a 2.5 hour drive on the freeway. After that drive, I noticed the splitter starting to come loose again in some areas. I did my first session in the morning and checked the splitter in the paddock. Looked no worse than it was when I got there so I left it on. Halfway through my second session I started to hear something rubbing occasionally. At first I thought it was just cars around me because I only really noticed it when I was passing cars. But when I was exiting the track after the session I could hear that it was definitely me dragging something on the ground. I pull into the paddock and the splitter is hanging from the car.

So I know the guys at Challenge have been recommending that if you track the car, you should add more screws to hold the splitter on, but for that to work, the bolts would have to be toward the front of the splitter and I just don't feel right about drilling into the front area of my bumper. Also the splitter kept coming loose just from freeway driving. On the plus side, this diffuser is obviously producing downforce.

So in retrospect, I should have went with glue instead of the 3M tape. I think that would have been the better solution. Again, I'm not trying to blame anyone for what happened but me. I just figured I'd share my mistake with the community so you don't end up destroying an expensive diffuser yourself.
__________________
(1:40 @ Laguna Seca, 2:03 @ Thunderhill, 1:52 @ Infineon)
radiantm3 is offline   United_States
0
Reply With Quote
      07-10-2012, 07:15 PM   #2
Denk
Lieutenant Colonel
 
Drives: E92 M3 ZCP
Join Date: May 2011
Location: PNW

Posts: 1,882
iTrader: (2)

Ouch, that stings a little. Tape makes it easy to replace but with the wind force exerted on decent size lips, spoilers and splitters I'd go hardcore...Betalink it!
Denk is offline   United_States
0
Reply With Quote
      07-10-2012, 07:23 PM   #3
Sean05
Putcha ang ganda...
 
Sean05's Avatar
 
Drives: 08 MR E92 M3
Join Date: Feb 2010
Location: Los Angeles, Brea CA.

Posts: 5,331
iTrader: (9)

Send a message via Yahoo to Sean05
OUCH
__________________
Sean05 is offline   Philippines
0
Reply With Quote
      07-10-2012, 07:54 PM   #4
armyav8tor
n1smo
 
armyav8tor's Avatar
 
Drives: E92 M3
Join Date: Apr 2008
Location: North Carolina

Posts: 1,447
iTrader: (1)

Garage List
That sucks, sorry to hear. If it makes you feel any better, your car looked just fine without the front lip.
armyav8tor is offline   United_States
0
Reply With Quote
      07-10-2012, 08:00 PM   #5
radiantm3
Apex Everything!
 
radiantm3's Avatar
 
Drives: >1000 HP in my garage
Join Date: Sep 2008
Location: Danville, CA

Posts: 3,815
iTrader: (6)

Garage List
2011 E92 M3  [4.80]
2013 BMW X5M  [4.33]
Quote:
Originally Posted by armyav8tor View Post
That sucks, sorry to hear. If it makes you feel any better, your car looked just fine without the front lip.
Well the lip was functional too (had brake cooling ducts).
__________________
(1:40 @ Laguna Seca, 2:03 @ Thunderhill, 1:52 @ Infineon)
radiantm3 is offline   United_States
0
Reply With Quote
      07-10-2012, 08:07 PM   #6
Kwando
Captain
 
Kwando's Avatar
 
Drives: Yes
Join Date: Jan 2011
Location: London, Ontario

Posts: 924
iTrader: (0)

Ouch. Can it be repaired and refinished?
Kwando is offline  
0
Reply With Quote
      07-10-2012, 09:13 PM   #7
radiantm3
Apex Everything!
 
radiantm3's Avatar
 
Drives: >1000 HP in my garage
Join Date: Sep 2008
Location: Danville, CA

Posts: 3,815
iTrader: (6)

Garage List
2011 E92 M3  [4.80]
2013 BMW X5M  [4.33]
Quote:
Originally Posted by Kwando View Post
Ouch. Can it be repaired and refinished?
I have no idea to be honest. The front and top of the diffuser is perfectly fine (clear bra'd). It's the bottom that has a hole in it.
__________________
(1:40 @ Laguna Seca, 2:03 @ Thunderhill, 1:52 @ Infineon)
radiantm3 is offline   United_States
0
Reply With Quote
      07-10-2012, 09:29 PM   #8
SchnellM3
Digger
 
SchnellM3's Avatar
 
Drives: 03 E46 M3, 09 E92 M3, 09 X6 50
Join Date: Jun 2009
Location: Pa

Posts: 2,616
iTrader: (5)

Garage List
Dam, that's a pretty big hit


I'd really put the screws in the next time, it will come off much easier than if you glue it and decide to switch it up in the future.... Just have someone else do it while you're not looking, that's what I did and I was in the same boat as you....
__________________
2009 E92 M3 /// Melbourne Red /// Fox Red /// M DKG

Full Innotech Exhaust - DINAN Intake - IND Engine Bay Appearance - IND Hand Stitched Boot Covers - and much more....
SchnellM3 is offline   United_States
0
Reply With Quote
      07-11-2012, 02:06 AM   #9
Endless619
DHS
 
Endless619's Avatar
 
Drives: bmw x5, m3, Acura TL
Join Date: Oct 2010
Location: Disneyland

Posts: 3,929
iTrader: (14)

Garage List
Quote:
Originally Posted by SchnellM3 View Post
Dam, that's a pretty big hit


I'd really put the screws in the next time, it will come off much easier than if you glue it and decide to switch it up in the future.... Just have someone else do it while you're not looking, that's what I did and I was in the same boat as you....
Agreed. I used 8 screws and 3m tape and its like cemented on. Never worry even when I scrape. lol just scuffs up the bottom and doesn't move an inch. So recommend more screws and same tape and you will be fine. I wouldn't glue.
Endless619 is offline   Spain
0
Reply With Quote
      07-11-2012, 03:33 AM   #10
Robmaster
Colonel
 
Robmaster's Avatar
 
Drives: 2010 E82 135, 2005 E87 130i
Join Date: Apr 2007
Location: Switzerland

Posts: 2,689
iTrader: (3)

for a functional lip --- Beta Link! it will never come off...
Robmaster is offline   Switzerland
0
Reply With Quote
      07-11-2012, 08:54 AM   #11
THE TECH
BimmerPost Supporting Vendor

 
THE TECH's Avatar
 
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas

Posts: 13,088
iTrader: (44)

Garage List
Send a message via AIM to THE TECH Send a message via Skype™ to THE TECH
That sucks man.
THE TECH is offline   United_States
0
Reply With Quote
      07-11-2012, 02:32 PM   #12
M3PO
Colonel
 
M3PO's Avatar
 
Drives: '08 IB E92
Join Date: Sep 2011
Location: OC

Posts: 2,733
iTrader: (6)

I use a few large dabs of silicone in key locations. It can be removed if needed but the silicone is VERY strong while being a bit flexible (good when you scrape it).
__________________
2008 IB E92 M3| BBS | KW | Arkym | Platte Forme A.G. | Active Autowerke | K&N | Fabspeed | Dinan | Evolve-R
M3PO is offline  
0
Reply With Quote
      07-11-2012, 02:55 PM   #13
Nate@IND
BimmerPost Supporting Vendor

 
Nate@IND's Avatar
 
Drives: BMW
Join Date: Oct 2006
Location: Chicago

Posts: 10,283
iTrader: (19)

Sorry to see that

Send me some more photo by pm. Might be able to repair it.
__________________
Nate@IND is offline  
0
Reply With Quote
      07-11-2012, 03:25 PM   #14
radiantm3
Apex Everything!
 
radiantm3's Avatar
 
Drives: >1000 HP in my garage
Join Date: Sep 2008
Location: Danville, CA

Posts: 3,815
iTrader: (6)

Garage List
2011 E92 M3  [4.80]
2013 BMW X5M  [4.33]
Quote:
Originally Posted by Nate@IND View Post
Sorry to see that

Send me some more photo by pm. Might be able to repair it.
Will do. Thanks Nate.
__________________
(1:40 @ Laguna Seca, 2:03 @ Thunderhill, 1:52 @ Infineon)
radiantm3 is offline   United_States
0
Reply With Quote
      07-11-2012, 03:40 PM   #15
THE TECH
BimmerPost Supporting Vendor

 
THE TECH's Avatar
 
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas

Posts: 13,088
iTrader: (44)

Garage List
Send a message via AIM to THE TECH Send a message via Skype™ to THE TECH
Fiberglass would repair just not sure if you would want it after that. Maybe use as a track only piece?
__________________
THE TECH is offline   United_States
0
Reply With Quote
      07-12-2012, 11:47 AM   #16
Bweitz1
Private First Class
 
Bweitz1's Avatar
 
Drives: 2010 E90 M3
Join Date: Jan 2009
Location: Bellmore, NY/ Boca Raton, FL

Posts: 148
iTrader: (2)

Send a message via AIM to Bweitz1
I'm about to order my 3rd challenge cf front lip. Cracked both pretty bad, was able to fix the first one and paint it but like the cf so going to order a new challenge lip ASAP.. I personally think its the best lip on the market..
__________________
Bweitz1 is offline   United_States
0
Reply With Quote
      07-12-2012, 12:45 PM   #17
blackmist222777
Captain
 
blackmist222777's Avatar
 
Drives: E92 M3
Join Date: Apr 2012
Location: SF Bay Area

Posts: 780
iTrader: (6)

i ended up placing one screw in the front along with the 3M tape and regular screws. i have a thill event next month. hopefully that holds well enough. i have been checking it and it seems as strong as the day i installed it. guess well see.
__________________

2011 E92 BMW M3 AW (current)
2004 E46 BMW M3 TIAG
2004 E46 BMW M3 LSB
blackmist222777 is offline  
0
Reply With Quote
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 10:54 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST