E92 M3 Rear Subframe + Diff upgrade

Nigelo · 11-29-2012, 09:47 AM

Nothing major - its going to be a slow one as this is my daily car and I still have to locate a spare 335i or M3 prop for reasonable money (most breakers seem to want £200+, which is more than I paid for an entire subframe!)

Once I have that, things will happen much quicker!

Peter@Advan · 12-11-2012, 12:35 AM

Hi all
Just completed the new set up all good to go.

Complete with the 135 rear brake setup.
there are so many parts that you can mix and match on these cars thats why i like them.

MrBlonde · 12-11-2012, 12:55 AM

Nice.

Zuzu · 12-11-2012, 01:18 AM

Looking good Steve..

Newby · 12-11-2012, 02:50 AM

Best combination, e9x m3 subframe, final drive and arms with 135i brakes and rotors! Did the 135i rotor fit over m3 hand brake shoes and the caliper bolt up to m3 swivel bearing?

I dummy fitted 135i twin piston caliper onto rear of 1M today with the standard(1M/M3) 24mm thick rotor and it was no dice. I didn't get as far as to try the 135i rotor. I did however try F20 M135i rotors and caliper, m135i rotor won't fit over the hand brake shoes.

RimasRS · 12-11-2012, 03:35 AM

Quote:

Originally Posted by skycat

Hi all
Just completed the new set up all good to go.

Complete with the 135 rear brake setup.
there are so many parts that you can mix and match on these cars thats why i like them.

Ughh that makes my life a little easier. Can you comment on that was everything bolt on? Do you know torque values of the bolts around diff by chance? Also did you reused old bolts or you bought them new?

Thank You

dontask · 12-11-2012, 08:06 AM

Peter,

Can you measure up the frankenshaft so that we can get a custom CF drive shaft made some day? I think a few of us want this mod done, would prefer a custom Drive shaft for (1) reliability with the extra torque and (2) bragging rights..

Drawn05 · 12-12-2012, 03:58 AM

FUCK YEAH

Stuart@BMRAutowerkes · 12-12-2012, 05:00 AM

Nice... great 60ft time too.

Gumball · 12-12-2012, 04:53 PM

Steve, Looks so good ! Truly impressive up close!

BMW86 · 12-12-2012, 08:17 PM

That's pretty decent!

DR-JEKL · 01-04-2013, 07:32 AM

Just out of curiosity is there an advantage to swapping the rear subframe over to a E92 M3 item instead of just doing the usual m3 subframe bushes?

I'm eventually going to be installing a wavetrac lsd and was thinking of upgrading to M3 subframe bushes whilst the work is being done which I believe are around $500 fitted, when a used m3 subframe with bushes is up for sale for $600 ish... ( $600 for the subframe alone, no ancillary items)

Nigelo · 01-04-2013, 07:47 PM

Apart from the bushes and the M3 diff, I think the next benefit is the lightness and better geometry of the suspension arms... Assuming the subframe comes complete.

If it comes with hubs and brakes too, then it can form the rear part of a BBK upgrade.

John_01 · 01-04-2013, 08:25 PM

I'd really like to know more about the change in rear end geometry. Can you get close to the M3's rear end stability just by swapping a $500 sub-frame and bushes?

pavo335 · 01-04-2013, 10:33 PM

Quote:

Originally Posted by John_01

I'd really like to know more about the change in rear end geometry. Can you get close to the M3's rear end stability just by swapping a $500 sub-frame and bushes?

You'll need it all and the front to 'balance' the suspension

RimasRS · 01-05-2013, 05:59 AM

I think it is a bit to much transforming all the parts also going with BBK in that case you need master brake cylinder front brakes front suspension etc... If you have possibility to do complete subframe with all bushes and rods go ahead and do it because it will have all bushes on it including diff mounts and all other. About which one is lighter I wouldn't be so sure...
It is good idea to do m3 bushes rods and I would do at the same rear sway bar from 335xi or 335 convertible which is 15mm thick compared with our 12mm

John_01 · 01-05-2013, 07:20 AM

Quote:

Originally Posted by pavo335

You'll need it all and the front to 'balance' the suspension

I have already done the front end with M3 arms, so balance and more predictability is what I'd like to achieve. I'd prefer to understand the actual issue instead of just going to replace everything with a large helping of M3 parts. I'm also wondering if can get an improvement in balance just by adjusting rear toe and camber - That seems the obvious first step to look at.

Newby · 01-07-2013, 05:19 AM

Why would you need a master cyl... It's the same part number. Also.. Front subframe is the same, only difference is the arms and front anti roll bar(1M).

OP, are you using the standard 135i swivel bearing, handbrake setup and rear caliper? 135i twin pot doesn't bolt onto M3 rear hub and doesn't sit in right position on disc. Also, discs pictured aren't m3

any info would be great.

Drawn05 · 01-07-2013, 05:26 AM

Quote:

Originally Posted by Newby

Why would you need a master cyl... It's the same part number. Also.. Front subframe is the same, only difference is the arms and front anti roll bar(1M).

OP, are you using the standard 135i swivel bearing, handbrake setup and rear caliper? 135i twin pot doesn't bolt onto M3 rear hub and doesn't sit in right position on disc. Also, discs pictured aren't m3

any info would be great.

The rhd e90/92 M3 and rhd e82 135i brake master cylinder are not the same part number.

I am using the 135i wheel hub so as to use the 135i calipers and rotors.

pavo335 · 01-07-2013, 01:30 PM

Quote:

Originally Posted by John_01

Quote:

Originally Posted by pavo335

You'll need it all and the front to 'balance' the suspension

I have already done the front end with M3 arms, so balance and more predictability is what I'd like to achieve. I'd prefer to understand the actual issue instead of just going to replace everything with a large helping of M3 parts. I'm also wondering if can get an improvement in balance just by adjusting rear toe and camber - That seems the obvious first step to look at.

Yep plus a sway and I'd say your 90% there. Have a look at hpa Harold has the kits in stages. The front is real easy, the rear though is rather more time consuming and IMHO if your going to do bushings then you might as well do it all while it's apart

MrBlonde · 01-07-2013, 05:50 PM

Quote:

Originally Posted by pavo335

Yep plus a sway and I'd say your 90% there. Have a look at hpa Harold has the kits in stages. The front is real easy, the rear though is rather more time consuming and IMHO if your going to do bushings then you might as well do it all while it's apart

Bingo.

JB4-335 · 01-07-2013, 11:36 PM

Quote:

Originally Posted by Drawn05

The rhd e90/92 M3 and rhd e82 135i brake master cylinder are not the same part number.

I am using the 135i wheel hub so as to use the 135i calipers and rotors.

Now that you've had the new rear end in for a while, how's it coming along Steve?

12-11-2012, 12:35 AM	#68
Peter@Advan Drives: 335 coupe ADVAN Join Date: May 2011 Location: Sydney Posts: 1,255 iTrader: (0)	135 / M3 diff Hi all Just completed the new set up all good to go. Complete with the 135 rear brake setup. there are so many parts that you can mix and match on these cars thats why i like them. Attached Images
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12-11-2012, 12:55 AM	#69
MrBlonde Welcome! To the House of Batiatus! Drives: 368 M Coupe, E82 135i, E70 X5 Join Date: Jan 2008 Location: Sydney Posts: 2,656 iTrader: (0)	Nice. __________________ .-=[ Kenny ]=-. 1999 BMW M Coupe 10.775 @ 134.35 mph w/1.600 60' (Best 136.07 mph) 25th August 2004. +2010 X5 35D+ Check out the 1Addicts Drag Racing Standings and Drag Racing 101.
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12-11-2012, 01:18 AM	#70
Zuzu Major General Drives: VO 1M Beast Join Date: Mar 2008 Location: SyDnEy Oz Posts: 7,317 iTrader: (0)	Looking good Steve.. __________________ COBB tune . ETS FMIC . aFe CAI . Meisterschaft GT exhaust . Custom Midpipes . CDV . BM OCC . H&R springs :
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12-11-2012, 08:06 AM	#73
dontask Second Lieutenant Drives: White BMW 135i Join Date: Mar 2009 Location: Brisbane Posts: 264 iTrader: (0)	Peter, Can you measure up the frankenshaft so that we can get a custom CF drive shaft made some day? I think a few of us want this mod done, would prefer a custom Drive shaft for (1) reliability with the extra torque and (2) bragging rights.. __________________ Modded 135i RHD Bumblebee
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12-12-2012, 03:58 AM	#74
Drawn05 Captain Drives: Yes Join Date: Dec 2010 Location: Left Posts: 768 iTrader: (0)	My two word review FUCK YEAH
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11-29-2012, 09:47 AM	#67
Nigelo Lieutenant Drives: E92 335i se Join Date: Aug 2011 Location: Northern Ireland Posts: 528 iTrader: (1)	Nothing major - its going to be a slow one as this is my daily car and I still have to locate a spare 335i or M3 prop for reasonable money (most breakers seem to want £200+, which is more than I paid for an entire subframe!) Once I have that, things will happen much quicker!
	0

12-11-2012, 02:50 AM	#71
Newby 1Mtech Drives: BMW Join Date: Aug 2012 Location: Australia Posts: 62 iTrader: (0)	Best combination, e9x m3 subframe, final drive and arms with 135i brakes and rotors! Did the 135i rotor fit over m3 hand brake shoes and the caliper bolt up to m3 swivel bearing? I dummy fitted 135i twin piston caliper onto rear of 1M today with the standard(1M/M3) 24mm thick rotor and it was no dice. I didn't get as far as to try the 135i rotor. I did however try F20 M135i rotors and caliper, m135i rotor won't fit over the hand brake shoes.
	0

12-12-2012, 05:00 AM	#75
Stuart@BMRAutowerkes Brigadier General Drives: a black car Join Date: Sep 2010 Location: Sydney Posts: 4,742 iTrader: (3)	Nice... great 60ft time too. __________________ www.bmraw.com
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12-12-2012, 04:53 PM	#76
Gumball Lieutenant Drives: A45 Join Date: Sep 2008 Location: Sydney Posts: 579 iTrader: (0)	Steve, Looks so good ! Truly impressive up close!
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12-12-2012, 08:17 PM	#77
BMW86 Major General Drives: BMW 135i / Kawa Ninja Join Date: Jul 2008 Location: Australia Posts: 8,842 iTrader: (0)	That's pretty decent! __________________ BMW 135i N54 TWIN TURBO Quarter Mile 12.173@113.70mph - Street Tyres Queensland Raceway Sprint 1:01:22 - Street Tyres Queensland Raceway Clubman 1:04:74 - Street Tyres Lakeside Raceway 1:03:97 - Street Tyres
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01-04-2013, 07:32 AM	#78
DR-JEKL Lieutenant Colonel Drives: Space Grey 335i 6MT Join Date: Jul 2012 Location: Newcastle Ozstraylia Posts: 1,546 iTrader: (0)	Just out of curiosity is there an advantage to swapping the rear subframe over to a E92 M3 item instead of just doing the usual m3 subframe bushes? I'm eventually going to be installing a wavetrac lsd and was thinking of upgrading to M3 subframe bushes whilst the work is being done which I believe are around $500 fitted, when a used m3 subframe with bushes is up for sale for $600 ish... ( $600 for the subframe alone, no ancillary items)
	0

01-04-2013, 07:47 PM	#79
Nigelo Lieutenant Drives: E92 335i se Join Date: Aug 2011 Location: Northern Ireland Posts: 528 iTrader: (1)	Apart from the bushes and the M3 diff, I think the next benefit is the lightness and better geometry of the suspension arms... Assuming the subframe comes complete. If it comes with hubs and brakes too, then it can form the rear part of a BBK upgrade.
	0

01-04-2013, 08:25 PM	#80
John_01 Lieutenant Colonel Drives: E90 325i, E82 135i Join Date: Mar 2009 Location: Sydney, Australia Posts: 1,914 iTrader: (0)	I'd really like to know more about the change in rear end geometry. Can you get close to the M3's rear end stability just by swapping a $500 sub-frame and bushes?
	0

01-05-2013, 05:59 AM	#82
RimasRS Colonel Drives: 135i MT 2009 AW Join Date: Sep 2010 Location: Europe Posts: 2,379 iTrader: (0)	I think it is a bit to much transforming all the parts also going with BBK in that case you need master brake cylinder front brakes front suspension etc... If you have possibility to do complete subframe with all bushes and rods go ahead and do it because it will have all bushes on it including diff mounts and all other. About which one is lighter I wouldn't be so sure... It is good idea to do m3 bushes rods and I would do at the same rear sway bar from 335xi or 335 convertible which is 15mm thick compared with our 12mm
	0

01-07-2013, 05:19 AM	#84
Newby 1Mtech Drives: BMW Join Date: Aug 2012 Location: Australia Posts: 62 iTrader: (0)	Why would you need a master cyl... It's the same part number. Also.. Front subframe is the same, only difference is the arms and front anti roll bar(1M). OP, are you using the standard 135i swivel bearing, handbrake setup and rear caliper? 135i twin pot doesn't bolt onto M3 rear hub and doesn't sit in right position on disc. Also, discs pictured aren't m3 any info would be great.
	0

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