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 > Wheels + Tires Sponsored by The Tire Rack
  TireRack

KEEP M3POST ALIVE BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER LINK!
Post Reply
 
Thread Tools Search this Thread
      08-05-2011, 09:00 PM   #1
sawzall
Major
 
sawzall's Avatar
 
Drives: 2012 Porsche 911 C2S
Join Date: May 2010
Location: Toronto

Posts: 1,253
iTrader: (0)

Garage List
TE37SL Centre Cap Idea

So, i've been helping a friend who is a mechanical engineer set up a new machine shop. As a part of the deal, he's agreed to machine some parts for me, so I thought i'd see if the community here would like to help out.

As many of you know, the TE37SL does not accept centre caps. I was thinking of creating a centre cap adapter ring that would fit in the TE37SL, and allow you to then fit different Volk centre caps onto the wheel. It would be made of extruded aluminum, and most likely anodized. Any one interested in such a solution, or have suggestions on how to improve something like this?

I going to go to the shop late next week to start on the part, and will post pics as the work progresses.

Oh, and before the flames start, I know this is purely cosmetic, and defeats the weight savings of the SL.

Update:

Here is the non-anodized version:



Last edited by sawzall; 08-30-2011 at 11:57 AM.
sawzall is online now   Canada
0
Reply With Quote
      08-06-2011, 12:40 AM   #2
rjd598
Brigadier General
 
rjd598's Avatar
 
Drives: 10' M3
Join Date: Jan 2009
Location: San Diego,CA

Posts: 4,498
iTrader: (2)

Garage List
2010 BMW M3  [4.50]
1999 BMW M3  [0.00]
I'd be interested in this. Maybe I don't know anything but why would center caps defeat the purpose of the sl? I don't think they weigh that much to seriously make a difference
__________________
10 E90 M3/dct/ztp/zpp/heated seats/eps/19'/iPod
retired- 08 535i/nav/prem./L7/ipod
retired- 06 325i/nav/prem./sat/xenons/style 128

rjd598 is online now   United_States
0
Reply With Quote
      08-06-2011, 09:43 PM   #3
sawzall
Major
 
sawzall's Avatar
 
Drives: 2012 Porsche 911 C2S
Join Date: May 2010
Location: Toronto

Posts: 1,253
iTrader: (0)

Garage List
Quote:
Originally Posted by rjd598 View Post
I'd be interested in this. Maybe I don't know anything but why would center caps defeat the purpose of the sl? I don't think they weigh that much to seriously make a difference
The SL was designed to be as light as possible. They machined out the centre, and in particular the centre cap 'mount', to save weight over the regular TE37. I agree with you that the savings in the centre were probably minimal. And a centre cap adapter will barely weigh anything.
sawzall is online now   Canada
0
Reply With Quote
      08-08-2011, 12:41 PM   #4
persian54
Lieutenant General
 
persian54's Avatar
 
Drives: SL550. Prev: E93 M3/335i/Z435i
Join Date: Jun 2009
Location: The Valley, SoCal

Posts: 15,741
iTrader: (289)

well one thing is that you're not suppose to run center caps on the track (depends on the organization from what I've heard)

so this way, without caps, you don't have to take anything off lol

This could be a sick idea

caps for the street, no caps on the track
persian54 is offline   United_States
0
Reply With Quote
      08-08-2011, 12:43 PM   #5
LateBraking
Brigadier General
 
LateBraking's Avatar
 
Drives: Reliable Cars
Join Date: Sep 2008
Location: Pacific Standard Time

Posts: 3,878
iTrader: (27)

I know some track event organizers ask that you don't run center caps or any loose items, in order to reduce risk of objects flying off and causing damage. I don't know if this applies to all, but it has applied to the ones I've been to.
LateBraking is offline   United_States
0
Reply With Quote
      08-08-2011, 04:31 PM   #6
sawzall
Major
 
sawzall's Avatar
 
Drives: 2012 Porsche 911 C2S
Join Date: May 2010
Location: Toronto

Posts: 1,253
iTrader: (0)

Garage List
Quote:
Originally Posted by LateBraking View Post
I know some track event organizers ask that you don't run center caps or any loose items, in order to reduce risk of objects flying off and causing damage. I don't know if this applies to all, but it has applied to the ones I've been to.
The same rules apply to a few of the tracks i've been to. I'll have this factored into the design by having some sort of opening to insert a pry to take out the adapter.

I'm planning on doing some heat cycle, speed and g force testing to make sure this won't come out during emergency manoeuvres, but even I'll take these off before hitting the track
sawzall is online now   Canada
0
Reply With Quote
      08-08-2011, 04:38 PM   #7
persian54
Lieutenant General
 
persian54's Avatar
 
Drives: SL550. Prev: E93 M3/335i/Z435i
Join Date: Jun 2009
Location: The Valley, SoCal

Posts: 15,741
iTrader: (289)

Keep us posted

As long as it's reasonable, I don't see why it won't work

Cause what I know some people do is they clean the hub and paint it black :P
persian54 is offline   United_States
0
Reply With Quote
      08-08-2011, 05:14 PM   #8
E90///M3`
Major General
 
Drives: 2008 E90M3
Join Date: Jan 2009
Location: Daly City -4- Work///Camarillo is Home

Posts: 5,278
iTrader: (3)

Garage List
2008 BMW E90 M3  [3.80]
sounds like a good idea. subbed
__________________
- Jason P
:Have: 08 E90M3, Varis VRS Front Lip, LS3, ESS Supercharger, Arqray Exhaust, Neez Wheels
:Want: VRS Carbon GT Wing & Cooling Bonnet, LCI Taillights
:Videos: EnvyRidesTV, GPR 1, GPR 2, GPR 3, ///MFEST
E90///M3` is offline   Philippines
0
Reply With Quote
      08-23-2011, 02:54 PM   #9
sawzall
Major
 
sawzall's Avatar
 
Drives: 2012 Porsche 911 C2S
Join Date: May 2010
Location: Toronto

Posts: 1,253
iTrader: (0)

Garage List
Alright, progress has been made. The first prototypes have rolled off the line.

The adapters are milled out of billet T6061-T1 aluminum, and currently is not finished. The plan is ultimately to have them anodized black, but for now, it's easier to test them without any paint. They are designed to work exclusively with the BMW TE37SL Bore of 72.6mm (this is the Volk measurement, not BMW), but can be changed to fit any other TE37SL bore.

They've been designed to accept the GT style Volk centre cap but it should fit any of the o-ring Volk centre caps.

I'm going to be away the next few days on business, but over the weekend, I plan to do some testing (e.g. hard braking, highway cruising) to make sure these things don't just pop off. I'll be the first to say this though, these should not be left on when tracking your car. I'll take more pictures over the weekend with the adapters and caps on the car.

Name:  IMG_0118.jpg
Views: 3098
Size:  107.6 KB

Name:  IMG_0115.jpg
Views: 3065
Size:  131.9 KB

Name:  IMG_0114.jpg
Views: 3034
Size:  133.8 KB

Name:  IMG_0119.jpg
Views: 3031
Size:  129.7 KB

Name:  IMG_0120.jpg
Views: 3039
Size:  146.3 KB

PS. Sorry about the picture quality, I was using my iPhone.

Last edited by sawzall; 08-29-2011 at 11:31 PM.
sawzall is online now   Canada
0
Reply With Quote
      08-23-2011, 03:01 PM   #10
persian54
Lieutenant General
 
persian54's Avatar
 
Drives: SL550. Prev: E93 M3/335i/Z435i
Join Date: Jun 2009
Location: The Valley, SoCal

Posts: 15,741
iTrader: (289)

oo good update
persian54 is offline   United_States
0
Reply With Quote
      08-30-2011, 11:08 AM   #11
sawzall
Major
 
sawzall's Avatar
 
Drives: 2012 Porsche 911 C2S
Join Date: May 2010
Location: Toronto

Posts: 1,253
iTrader: (0)

Garage List
Here it is. The TE37SL *with* centre cap. Testing has almost been completed, it has stayed on at highway speeds, brake pad bedding procedures and some time on the skidpad.

Next step is to anodize the adapter ring black and we're done!



Last edited by sawzall; 09-07-2011 at 07:20 PM.
sawzall is online now   Canada
0
Reply With Quote
      08-30-2011, 12:04 PM   #12
nolan12
Private First Class
 
Drives: M3
Join Date: Jul 2011
Location: South FL

Posts: 146
iTrader: (0)

Looks good!
nolan12 is offline  
0
Reply With Quote
      09-07-2011, 04:24 PM   #13
robspec
Private First Class
 
Drives: 2010 e92 m3
Join Date: Jun 2011
Location: SoCal

Posts: 184
iTrader: (6)

interested
robspec is offline  
0
Reply With Quote
      09-07-2011, 06:08 PM   #14
Brucewonder
Lieutenant Colonel
 
Brucewonder's Avatar
 
Drives: 2011 E92 M3 yea boi
Join Date: Nov 2007
Location: Socal

Posts: 1,543
iTrader: (4)

looks good, makes me want to buy a set of te37SL
__________________
2011.5 E92 ///M3 SSII/FR
Brucewonder is offline  
0
Reply With Quote
      09-07-2011, 06:26 PM   #15
rjd598
Brigadier General
 
rjd598's Avatar
 
Drives: 10' M3
Join Date: Jan 2009
Location: San Diego,CA

Posts: 4,498
iTrader: (2)

Garage List
2010 BMW M3  [4.50]
1999 BMW M3  [0.00]
perfect timing! hopefully ill be placing my order for te37sl's in the next few weeks. DEF want these!
__________________
10 E90 M3/dct/ztp/zpp/heated seats/eps/19'/iPod
retired- 08 535i/nav/prem./L7/ipod
retired- 06 325i/nav/prem./sat/xenons/style 128

rjd598 is online now   United_States
0
Reply With Quote
      09-07-2011, 07:08 PM   #16
sawzall
Major
 
sawzall's Avatar
 
Drives: 2012 Porsche 911 C2S
Join Date: May 2010
Location: Toronto

Posts: 1,253
iTrader: (0)

Garage List
Thanks for the interest folks - i'll definitely let you all know what we end up doing after the prototype testing is done.
sawzall is online now   Canada
0
Reply With Quote
      09-08-2011, 09:10 AM   #17
Johan@WSTO
Colonel
 
Drives: BMW E89 Z4
Join Date: Mar 2008
Location: Chicago

Posts: 2,117
iTrader: (2)

Send a message via AIM to Johan@WSTO Send a message via Skype™ to Johan@WSTO
Looks great! Can't wait to see the car with the wheels in person
Johan@WSTO is offline   United_States
0
Reply With Quote
      09-08-2011, 07:13 PM   #18
persian54
Lieutenant General
 
persian54's Avatar
 
Drives: SL550. Prev: E93 M3/335i/Z435i
Join Date: Jun 2009
Location: The Valley, SoCal

Posts: 15,741
iTrader: (289)

Are those the standard pressed graphite?

they look different
persian54 is offline   United_States
0
Reply With Quote
      09-08-2011, 08:38 PM   #19
sawzall
Major
 
sawzall's Avatar
 
Drives: 2012 Porsche 911 C2S
Join Date: May 2010
Location: Toronto

Posts: 1,253
iTrader: (0)

Garage List
Quote:
Originally Posted by persian54 View Post
Are those the standard pressed graphite?

they look different
They're the standard pressed graphite ones. I find its a really complex colour. Some days it looks like bronze, other days like a shiny gunmetal. And when covered in brake dust, flat grey . It's one of the things I like about it.

Last edited by sawzall; 09-09-2011 at 11:00 AM.
sawzall is online now   Canada
0
Reply With Quote
      09-09-2011, 08:21 AM   #20
reesy_csl
New Member
 
reesy_csl's Avatar
 
Drives: E90 M3 Alpine White
Join Date: Sep 2010
Location: Birmingham, UK

Posts: 25
iTrader: (0)

Subscribed. These look great, in the UK and interested. Keep us updated
reesy_csl is offline  
0
Reply With Quote
      09-10-2011, 12:50 PM   #21
persian54
Lieutenant General
 
persian54's Avatar
 
Drives: SL550. Prev: E93 M3/335i/Z435i
Join Date: Jun 2009
Location: The Valley, SoCal

Posts: 15,741
iTrader: (289)

hmm instead of black, do you think your guy could color match the rims?
either way it looks great
persian54 is offline   United_States
0
Reply With Quote
      09-11-2011, 07:22 PM   #22
sawzall
Major
 
sawzall's Avatar
 
Drives: 2012 Porsche 911 C2S
Join Date: May 2010
Location: Toronto

Posts: 1,253
iTrader: (0)

Garage List
Quote:
Originally Posted by persian54 View Post
hmm instead of black, do you think your guy could color match the rims?
either way it looks great
That was my original thought, but my friend said it would be next to impossible for him to match because the colour is not just the result of paint but also of their machining process. Apparently, the forging process causes their paints to layer in a different way.

We're going to do one set in black, and try to match the red of the valve stem on another. I'm hoping the final set will be ready early next week.
sawzall is online now   Canada
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 03:20 PM.




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