NASA TT e46 subframe bulletin

ken o · Wed, Apr-25-2012, 07:33:38 PM

http://www.nasaforums.com/viewtopic.php?f=2&t=57011

TECHNICAL BULLETIN--BMW E46 models--Rear Sub-frame 4-24-12

All BMW E46 models in the 1999–2006 range

Allowance of repair and/or prevention of rear sub-frame connection point failures as noted in the settlement of the class action lawsuit settled 8-10-09 with BMW. The following modifications are permitted without a Modification Point or Modification Factor assessment, and are not intended as performance enhancing modifications:

The material used cannot exceed 0.110” (inches) in thickness. Plates may be trimmed to fit the area being repaired or reinforced. Any vertical offset of the sub-frame or suspension caused by the use of these plates is legal. Holes are allowed for the existing fasteners and for additional holes for rosette welds. Existing cracks or damage may be welded before the repair.
1. One plate (A) not to exceed 206MM x 108mm in size. Two bends are allowed to contour to chassis but must be included in overall size.
2. One plate (B) not to exceed 163mm x 81mm in size. One bend allowed to contour to chassis but must be included in overall size.
3. Two plates (C) not to exceed 134mm x 73mm in size, (one plate per side).
4. Two plates (D) not to exceed 66mm x 42mm in size, (one plate per side).
5. Two plates (E) not to exceed 82mm x 92mm in size, (one plate per side).

Plates (A), (B), (C), and (D), must be placed between the sub-frame and differential carrier and can be attached to the underbody by welding or bonding. Plate (E) can only be used in the trunk area to cover the access hole made to weld the top of the sub-frame connections, and can be attached by welding or bonding.

_________________

BLAU M3 · Thu, Apr-26-2012, 04:16:26 AM

nice....have you already had this done Ken?

ken o · Thu, Apr-26-2012, 10:45:27 AM

Yes. I had Vorshalg install it.

THEHOUNDER · Thu, Apr-26-2012, 11:46:01 AM

The changes in the rules this year are crazy. You now have to take points for SMG, as it was optional equipment. Some would say the Comp package should cost points, as it is non factory equipment.

Sent from my iPhone using Tapatalk

magnetic1 · Thu, Apr-26-2012, 02:15:49 PM

Comp package might net you points for brakes since the calipers (rear) are different.

MrFabulous · Thu, Apr-26-2012, 02:25:46 PM

Is it safe to assume that all currently available reinforcement kits meet this requirement? It would seem logical to measure the Turner kit (for example) and build the rule on those dimensions. But then we all know how governing bodies like to make life interesting.

ken o · Thu, May-24-2012, 03:20:57 PM

The measurements for this bulletin are very close to the Turner kit making it 100% legal to use.

Wed, Apr-25-2012, 07:33:38 PM	#1
ken o Registered User Join Date: Jun 2008 Posts: 525 Reputation: 0 Location: Allen	NASA TT e46 subframe bulletin http://www.nasaforums.com/viewtopic.php?f=2&t=57011 TECHNICAL BULLETIN--BMW E46 models--Rear Sub-frame 4-24-12 All BMW E46 models in the 1999–2006 range Allowance of repair and/or prevention of rear sub-frame connection point failures as noted in the settlement of the class action lawsuit settled 8-10-09 with BMW. The following modifications are permitted without a Modification Point or Modification Factor assessment, and are not intended as performance enhancing modifications: The material used cannot exceed 0.110” (inches) in thickness. Plates may be trimmed to fit the area being repaired or reinforced. Any vertical offset of the sub-frame or suspension caused by the use of these plates is legal. Holes are allowed for the existing fasteners and for additional holes for rosette welds. Existing cracks or damage may be welded before the repair. 1. One plate (A) not to exceed 206MM x 108mm in size. Two bends are allowed to contour to chassis but must be included in overall size. 2. One plate (B) not to exceed 163mm x 81mm in size. One bend allowed to contour to chassis but must be included in overall size. 3. Two plates (C) not to exceed 134mm x 73mm in size, (one plate per side). 4. Two plates (D) not to exceed 66mm x 42mm in size, (one plate per side). 5. Two plates (E) not to exceed 82mm x 92mm in size, (one plate per side). Plates (A), (B), (C), and (D), must be placed between the sub-frame and differential carrier and can be attached to the underbody by welding or bonding. Plate (E) can only be used in the trunk area to cover the access hole made to weld the top of the sub-frame connections, and can be attached by welding or bonding. _________________ __________________ 2011 e92 M3 - Daily Driver, RTR 2003 e46 M3 - TTB, STU, BSP

Thu, Apr-26-2012, 04:16:26 AM	#2
BLAU M3 Registered User Join Date: Feb 2011 Posts: 124 In the garage: '03 BMW M3 Reputation: 0 Location: Bay Area	Re: NASA TT e46 subframe bulletin nice....have you already had this done Ken?

Thu, Apr-26-2012, 10:45:27 AM	#3
ken o Registered User Join Date: Jun 2008 Posts: 525 Reputation: 0 Location: Allen	Re: NASA TT e46 subframe bulletin Yes. I had Vorshalg install it. __________________ 2011 e92 M3 - Daily Driver, RTR 2003 e46 M3 - TTB, STU, BSP

Thu, Apr-26-2012, 11:46:01 AM	#4
THEHOUNDER Old Guy with M3 Join Date: May 2005 Posts: 2,046 Reputation: 0 Location: St. Charles, IL	The changes in the rules this year are crazy. You now have to take points for SMG, as it was optional equipment. Some would say the Comp package should cost points, as it is non factory equipment. Sent from my iPhone using Tapatalk __________________ 2004 Silbergrau SMG/ FLMS "half cage"/ V-CSL Roof/Works Bell SMG/ Fabspeed Headers/ Epic tune/ BW 3.5"/Cobra Sebring (d) - Suzuka (p)/Brembo 355/345 / GSP Gen 1 Pedal /Moton CS / Ground Control Race Bars / AIM Solo DL /Other junk and stuff 2012 Mercedes GL450 - Tow pig 2010 Featherlite 17'6" open 2008 335xi -stock

Thu, Apr-26-2012, 02:15:49 PM	#5
magnetic1 Registered User Join Date: Aug 2006 Posts: 1,045 Reputation: 0 Location: Norbeck, MD	Re: NASA TT e46 subframe bulletin Comp package might net you points for brakes since the calipers (rear) are different. __________________ Wonger VIR Sloppy GTS3 Record 2:04.3 2012 NASA Nationals GTS3 First Loser #121 GTS3 E46 M3 Build/Blog 2003 Avus Blue Individual M3 Street Mule

Thu, Apr-26-2012, 02:25:46 PM	#6
MrFabulous Registered User Join Date: Nov 2011 Posts: 13 Reputation: 0 Location: Chicagoland	Re: NASA TT e46 subframe bulletin Is it safe to assume that all currently available reinforcement kits meet this requirement? It would seem logical to measure the Turner kit (for example) and build the rule on those dimensions. But then we all know how governing bodies like to make life interesting.

Thu, May-24-2012, 03:20:57 PM	#7
ken o Registered User Join Date: Jun 2008 Posts: 525 Reputation: 0 Location: Allen	Re: NASA TT e46 subframe bulletin The measurements for this bulletin are very close to the Turner kit making it 100% legal to use. __________________ 2011 e92 M3 - Daily Driver, RTR 2003 e46 M3 - TTB, STU, BSP

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