Z4M Front Sway Bar Ripped From Frame

Beedub · 06-28-2012, 01:42 PM

Quote:

Originally Posted by JasonH

Are there any kinds of bolt-on reinforcements or are they all weld-on?

to reinforce the area it would need to be proper weldin/on plates, if i see a failure with the stock units in place i'll re-inforce mine.

inTgr8r · 06-28-2012, 02:59 PM

^whs
Welding is the only way.

Z///Ms · 07-02-2012, 07:42 PM

The only practical solution/fix is a welded reinforcement. The metal in the stock frame around the mounting studs fatigues.

exdos · 07-06-2012, 06:37 AM

If you were to fit a pair of rectangular shaped shims with holes for the bolts between the car chassis and the brackets, when the brackets are fastened on tightly, this would provide reinforcement to the chassis without the need for welding.

Beedub · 07-06-2012, 07:44 AM

Quote:

Originally Posted by exdos

If you were to fit a pair of rectangular shaped shims with holes for the bolts between the car chassis and the brackets, when the brackets are fastened on tightly, this would provide reinforcement to the chassis without the need for welding.

for lasting protection against fatigue, imo welding a proper solution inplace is the only REAL solution and will safe guard this part of the car.

If your cars on stock bars (which i believe are thick enough imo) this isnt an issue, id rather tune the setup with a proper coilover and spring rate setup.

seank · 05-19-2013, 06:09 PM

Well, clunk, clunk, clunk, mine ripped out on the driver side.

3rd case documented. Seems to be a regular case with every performance BMW I have owned.

Finnegan · 05-19-2013, 11:14 PM

Quote:

Originally Posted by seank

Well, clunk, clunk, clunk, mine ripped out on the driver side.

3rd case documented. Seems to be a regular case with every performance BMW I have owned.

Holy cow? Today?

seank · 05-19-2013, 11:28 PM

Yes. Drove the Delta again. I guess it's not smooth enough for upgraded bars. I believe we will see failures with stock bars when these chassis hit 100,000 miles. It is amazing that it lasted this long after looking at it.

exdos · 05-20-2013, 03:24 AM

Have you been running upgraded ARBs? If so, how many miles with this configuration?

inTgr8r · 05-20-2013, 07:29 AM

I just finished reinforcing mine with the epoxy method.
http://www.zpost.com/forums/showthread.php?t=786695

seank · 05-20-2013, 08:38 AM

Quote:

Originally Posted by exdos

Have you been running upgraded ARBs? If so, how many miles with this configuration?

8000 miles.

Finnegan · 05-20-2013, 01:50 PM

Quote:

Originally Posted by seank

Yes. Drove the Delta again. I guess it's not smooth enough for upgraded bars. I believe we will see failures with stock bars when these chassis hit 100,000 miles. It is amazing that it lasted this long after looking at it.

Ugh. The Delta certainly isn't smooth, but them again that's true of just about every road in CA. I was in the East Bay last week on 680 between Concord and San Jose and yikes!

Looks like a spot that should be reinforced if one is keeping the car awhile even with stock bars as you suggest. Ian, thanks for the link (great template there to from Exdos).

06-28-2012, 02:59 PM	#24
inTgr8r Lieutenant General 2426 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	^whs Welding is the only way. __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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07-02-2012, 07:42 PM	#25
Z///Ms New Member 6 Rep 22 Posts Drives: Z3M Rstr, Z3M Coupe, Z4M Coupe Join Date: Jul 2010 Location: PA iTrader: (0)	The only practical solution/fix is a welded reinforcement. The metal in the stock frame around the mounting studs fatigues.
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07-06-2012, 06:37 AM	#26
exdos Second Lieutenant 6 Rep 222 Posts Drives: Z3 M Coupe(S54) and Z4 M Coupe Join Date: Apr 2008 Location: UK iTrader: (0)	If you were to fit a pair of rectangular shaped shims with holes for the bolts between the car chassis and the brackets, when the brackets are fastened on tightly, this would provide reinforcement to the chassis without the need for welding.
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05-19-2013, 06:09 PM	#28
seank enthusiast 48 Rep 1,695 Posts Drives: e30 m3,e90 wagon,sprinter,z4m Join Date: Dec 2011 Location: sacramento, ca iTrader: (4)	Well, clunk, clunk, clunk, mine ripped out on the driver side. 3rd case documented. Seems to be a regular case with every performance BMW I have owned.
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05-19-2013, 11:28 PM	#30
seank enthusiast 48 Rep 1,695 Posts Drives: e30 m3,e90 wagon,sprinter,z4m Join Date: Dec 2011 Location: sacramento, ca iTrader: (4)	Yes. Drove the Delta again. I guess it's not smooth enough for upgraded bars. I believe we will see failures with stock bars when these chassis hit 100,000 miles. It is amazing that it lasted this long after looking at it.
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05-20-2013, 03:24 AM	#31
exdos Second Lieutenant 6 Rep 222 Posts Drives: Z3 M Coupe(S54) and Z4 M Coupe Join Date: Apr 2008 Location: UK iTrader: (0)	Have you been running upgraded ARBs? If so, how many miles with this configuration?
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05-20-2013, 07:29 AM	#32
inTgr8r Lieutenant General 2426 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	I just finished reinforcing mine with the epoxy method. http://www.zpost.com/forums/showthread.php?t=786695 __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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