M2 madness

[330i ZHP]

I have the IE bars. That mounts on the aluminum block attached to "frame" rails of the unibody. I believe you use the same

[M3M3]

there are multiple versions of that bar.  i have the drop version, not the normal straight version.

 

Edited December 1, 2015 by mlytle

[330i ZHP]

Hmmm.

Correct bar? Although yours uses the newer preferred method of sway links attached to struts.

[M3M3]

you got the right one.  IE does not offer the links on struts.  that is a mod i had GC do.

[330i ZHP]

I know. And it looks like your setup is like modern bmws. I am studying all your changes. So I can learn what works and what doesn't. I repeat, your thread is great

[M3M3]

dang, long time since i posted in this thread....actually a long time since it touched the M2.

 

changed the oil today, then went to flush the brakes.  found piston seal on right side rear wilwood caliper leaking.  no problem, i will just rebuild it.

 

not.  when i called wilwood for some replacement rubber bits, found out they don't sell them for the CPB calipers.  it seems they deem those calipers too hard to rebuild, so they require them to be sent to wilwood for rebuild.  ARGH!  3-4 week turnaround time.  so much for taking the M2 to the track next weekend.  pulled the calipers off to be sent in.

 

then pulled the M3 out of the trailer,  flushed the brakes on that car and found 4 tires with some tread left  to burn off next weekend.

 

it is good to have spares....

[bento]

dang, long time since i posted in this thread....actually a long time since it touched the M2.

 

changed the oil today, then went to flush the brakes.  found piston seal on right side rear wilwood caliper leaking.  no problem, i will just rebuild it.

 

not.  when i called wilwood for some replacement rubber bits, found out they don't sell them for the CPB calipers.  it seems they deem those calipers too hard to rebuild, so they require them to be sent to wilwood for rebuild.  ARGH!  3-4 week turnaround time.  so much for taking the M2 to the track next weekend.  pulled the calipers off to be sent in.

 

then pulled the M3 out of the trailer,  flushed the brakes on that car and found 4 tires with some tread left  to burn off next weekend.

 

it is good to have spares....

This sounds like how I ended up with 5 mountain bikes, so I wouldn't miss out on a big ride or a vacation. Hidden cost of track days; multiple cars or lots of spares. Not cheap either way.

[jim57759]

When does the M2 hit the track next, Marshall?  Hope you can post a video soon.  I find them very inspiring!

[M3M3]

not for a while......distracted with house construction...and the M2 is down hard with now rear brakes.

 

a bit unhappy with wilwood at this point.....called to check on status of my CPB calipers.  i sent them in when the rep said they could only be rebuilt by wilwood.  apparently now i find out they CAN'T BE REBUILT AT ALL!    when the CPB's need rebuilding, like for a new $1 rubber seal, you have to buy an entirely new caliper to replace it.  that is just absurd.

 

DO NOT BUY WILWOOD CPB CALIPERS!!!!!  (they are unfortunately the key element of an otherwise nice IE rear brake kit.)

[jim57759]

Wow, that's bad.  Thanks for the heads up and send us some M3 footage.

 

[ray_]

Ooph. Do you think that shop in VA which rebuilds vintage hydraulic components can do it? ... name escapes me now.

 

Good luck,

[J Mart]

White Post restorations ????

[ray_]

Yes! Them!

 

Thanks,

[M3M3]

chatted with wilwood again.  Dustin was very helpful.  worked out an arrangement to get the leaky caliper replaced, but this will be the last time i use the CPB's.  gotta start work on engineering a different rear brake solution that allows retention of a parking brake.  guess i could always use the VW calipers!

[ClayW]

You can probably come up with a better solution than mine, but I made a spacer for my VW calipers.

ETA: In this position, I can bleed the caliper without removing it and it's not in the way of the shock boss. just FYI.

 

Edited April 12, 2016 by ClayW