Mightymousetech installs Ohlins

cwlo · 02-14-2021, 04:46 PM

No I am referring to the front rotor. Fits perfectly. It is a 1 piece rotor, so weight is a definite downside. I searched high and wide for a 3 piece, even custom, but there were no good options at the time, and this is a pretty inexpensive option.

https://www.rockauto.com/en/moreinfo...=1432799&jsn=1

Biginboca · 02-14-2021, 05:54 PM

Quote:

Originally Posted by cwlo

No I am referring to the front rotor. Fits perfectly. It is a 1 piece rotor, so weight is a definite downside. I searched high and wide for a 3 piece, even custom, but there were no good options at the time, and this is a pretty inexpensive option.

https://www.rockauto.com/en/moreinfo...=1432799&jsn=1

The F8X spindles move the caliper out radially (towards the tire tread, not sidewall) an additional 5mm vs the series spindles. So the 340mm Brembo caliper would fit perfectly on a 350mm rotor on the F8X spindle.

Did you adjust the pads at all or they just overhang outside the rotor the extra 6mm? (338mm diameter your rotor vs 350mm ideally)

cwlo · 02-14-2021, 07:02 PM

I was not aware of the additional overhang of the f80 spindle. Thanks for this info. I will check the pad sweep for any overhang next time I'm in there. Operationally, I have had no issues. Originally, I considered turning down an e90 M3 rotor to size, but was not convinced of a decent and safe result.

MightyMouseTech · 02-16-2021, 02:46 PM

So, just ordered a new right front 1M knuckle. Bonus, it's much cheaper than the M2 knuckle.

Part number 31212283436.

Let's see what I can do with it.

MightyMouseTech · 02-16-2021, 07:50 PM

I should add. One of the final decisions to go this route. Looking at the camber specs, the 1M spec is -1.2 front camber. The 135i is -0.5 degrees. The 1M front lower control arms will add -0.7 camber to a 135i. So, the knuckle itself should not add any camber. So in that regard, this swap is ideal, for me, over the M2 knuckle.

mad_hatter · 02-19-2021, 10:19 AM

I have nothing to add, just subscribing to follow along.

MightyMouseTech · 02-27-2021, 03:27 PM

Soooo......this project may get shelved for a bit. An opportunity may have come up for a bigger plan.

Biginboca · 02-27-2021, 04:13 PM

Quote:

Originally Posted by MightyMouseTech

Soooo......this project may get shelved for a bit. An opportunity may have come up for a bigger plan.

MightyMouseTech · 02-27-2021, 09:43 PM

Quote:

Originally Posted by Biginboca

Quote:

Originally Posted by MightyMouseTech

Soooo......this project may get shelved for a bit. An opportunity may have come up for a bigger plan.

Looks like I am building myself a 128i track car.

asbrr · 02-28-2021, 02:18 PM

Quote:

Originally Posted by MightyMouseTech

Looks like I am building myself a 128i track car.

Do tell / start a new thread if you do!

fe1rx · 02-28-2021, 09:25 PM

Quote:

Originally Posted by asbrr

Do tell / start a new thread if you do!

Agreed!

MightyMouseTech · 03-04-2021, 08:12 AM

Well, got the 1M knuckle in.

Surprisingly, looks like the 1M and M2 knuckles have the same measurement.

lab_rat · 01-01-2023, 04:57 PM

I recently found this thread and have been studying the info. Thanks to everyone who shared knowledge and experience with the specific parts.

MightyMouseTech: Any updates on the 128i track car and/or your 135i?

I'm interested in "OEM/OEM+" suspension modifications for my 135is, but keeping the rest of the car as close to factory specs as possible.

This thread is a great motivator. Thanks!

02-14-2021, 04:46 PM	#45
cwlo Private First Class 84 Rep 110 Posts Drives: 04 m3 Join Date: Dec 2017 Location: Chicago iTrader: (0)	No I am referring to the front rotor. Fits perfectly. It is a 1 piece rotor, so weight is a definite downside. I searched high and wide for a 3 piece, even custom, but there were no good options at the time, and this is a pretty inexpensive option. https://www.rockauto.com/en/moreinfo...=1432799&jsn=1
	Appreciate 1 Biginboca3763.50 Quote

02-14-2021, 07:02 PM	#47
cwlo Private First Class 84 Rep 110 Posts Drives: 04 m3 Join Date: Dec 2017 Location: Chicago iTrader: (0)	I was not aware of the additional overhang of the f80 spindle. Thanks for this info. I will check the pad sweep for any overhang next time I'm in there. Operationally, I have had no issues. Originally, I considered turning down an e90 M3 rotor to size, but was not convinced of a decent and safe result.
	Appreciate 1 Biginboca3763.50 Quote

02-16-2021, 02:46 PM	#48
MightyMouseTech Major General 4338 Rep 6,196 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	So, just ordered a new right front 1M knuckle. Bonus, it's much cheaper than the M2 knuckle. Part number 31212283436. Let's see what I can do with it.
	Appreciate 2 fe1rx1396.50 Biginboca3763.50 Quote

02-16-2021, 07:50 PM	#49
MightyMouseTech Major General 4338 Rep 6,196 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	I should add. One of the final decisions to go this route. Looking at the camber specs, the 1M spec is -1.2 front camber. The 135i is -0.5 degrees. The 1M front lower control arms will add -0.7 camber to a 135i. So, the knuckle itself should not add any camber. So in that regard, this swap is ideal, for me, over the M2 knuckle.
	Appreciate 0 Quote

02-19-2021, 10:19 AM	#50
mad_hatter Enlisted Member 64 Rep 48 Posts Drives: 128i, MK7 GTI Join Date: Feb 2021 Location: Ontario, Canada iTrader: (0)	I have nothing to add, just subscribing to follow along.
	Appreciate 0 Quote

02-27-2021, 03:27 PM	#51
MightyMouseTech Major General 4338 Rep 6,196 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	Soooo......this project may get shelved for a bit. An opportunity may have come up for a bigger plan.
	Appreciate 1 Biginboca3763.50 Quote

03-04-2021, 08:12 AM	#56
MightyMouseTech Major General 4338 Rep 6,196 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	Well, got the 1M knuckle in. Surprisingly, looks like the 1M and M2 knuckles have the same measurement. Attached Images
	Appreciate 0 Quote

01-01-2023, 04:57 PM	#57
lab_rat Captain 395 Rep 662 Posts Drives: 2013 135is (#5 of 586) Join Date: Nov 2013 Location: SATX + Heiligenhaus, DE iTrader: (6)	I recently found this thread and have been studying the info. Thanks to everyone who shared knowledge and experience with the specific parts. MightyMouseTech: Any updates on the 128i track car and/or your 135i? I'm interested in "OEM/OEM+" suspension modifications for my 135is, but keeping the rest of the car as close to factory specs as possible. This thread is a great motivator. Thanks!
	Appreciate 0 Quote