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Discussion Starter #1
Would like to upgrade the front brakes with brakes from e60, wondering if someone tried before, are the calipers bold on fit?
Thanks
 

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Check the BBK from Angry *** Solutions; just bought them a couple weeks back. Haven't put them on yet but I've heard good things. Brakes and calipers from the F30 3 Series.

Some more discussion in this thread:
 

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Discussion Starter #4
Check the BBK from Angry *** Solutions; just bought them a couple weeks back. Haven't put them on yet but I've heard good things. Brakes and calipers from the F30 3 Series.

Some more discussion in this thread:
Thanks. that is really great option at a budget. But for the rear?
 

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OP, I replied to you via email, but thought I would reply publicly as well.

We will not be building an adaptor for the rear two piston setups featured on the F80, or F30 with M Sport brakes. There is not a simple or sufficiently elegant way to adapt those rear components, particularly under the budget of a custom four piston rear setup.

Our planned rear upgrade to optionally accompany the Street Front upgrade, and to pair with our 355mm/6 piston AP RadiCal Race upgrade, is an E46 M3-based sliding caliper kit. This kit will feature one piece (optional two piece) 328x20mm rotors, matching the late E34 M5 rear rotor, and E46 M3 rear caliper, which has a larger piston than even the late E34 M5 rear sliding caliper.

Functionally and economically, this rear upgrade will outstrip any alternative and offer unbeatable availability and plug-and-play usability with important street features like the stock handbrake.
 

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Discussion Starter #7
OP, I replied to you via email, but thought I would reply publicly as well.

We will not be building an adaptor for the rear two piston setups featured on the F80, or F30 with M Sport brakes. There is not a simple or sufficiently elegant way to adapt those rear components, particularly under the budget of a custom four piston rear setup.

Our planned rear upgrade to optionally accompany the Street Front upgrade, and to pair with our 355mm/6 piston AP RadiCal Race upgrade, is an E46 M3-based sliding caliper kit. This kit will feature one piece (optional two piece) 328x20mm rotors, matching the late E34 M5 rear rotor, and E46 M3 rear caliper, which has a larger piston than even the late E34 M5 rear sliding caliper.

Functionally and economically, this rear upgrade will outstrip any alternative and offer unbeatable availability and plug-and-play usability with important street features like the stock handbrake.
so the rear e46 m3 caliper will bot on?
 

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Discussion Starter #9
We haven't had time to test this yet! I thought you had moved onto larger options because the 328mm rotor was not large enough for you?
right, i want bigger rotors but for e46 are more options aftermarket brakes, up to 345mm rotors from stoptech, or e60 up to 355mm rotors
 

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View attachment 935928
And the rear brakes on.
Awesome!! Love it!!
Please provide more specifics on the donor E-series and work to install the bigger rear rotor upgrade.
Are these rears 345x24mm rear rotor and rear caliper from the E60 M5?
Caliper Carrier for the upgrade?
E-Brake shoe upgrade? E34 is 180mm the E60 is 185mm
Rotor Dust shield replacement?
 

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Awesome!! Love it!!
Please provide more specifics on the donor E-series and work to install the bigger rear rotor upgrade.
Are these rears 345x24mm rear rotor and rear caliper from the E60 M5?
Caliper Carrier for the upgrade?
E-Brake shoe upgrade? E34 is 180mm the E60 is 185mm
Rotor Dust shield replacement?
Rear rotors 370mm if m5e60
 

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Discussion Starter #16
Awesome!! Love it!!
Please provide more specifics on the donor E-series and work to install the bigger rear rotor upgrade.
Are these rears 345x24mm rear rotor and rear caliper from the E60 M5?
Caliper Carrier for the upgrade?
E-Brake shoe upgrade? E34 is 180mm the E60 is 185mm
Rotor Dust shield replacement?
rotors are from m5, 370x24 and caliper but carrier from 550i because it's smaller.
Ebrake works with stock shims, just adjusted to grab the rotor
dust shield trimmed and done.
 

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After further review, I'm curious what your goal(s) are in swapping to this setup. The only advantage I see is the larger rotors, for which you are paying a hefty unsprung (and rotational) mass penalty in the name of some extra thermal capacity you will not need.

The front setup alone is 47lbs per corner, compared to about 35lbs a corner stock. If the goal is mainly looks, fine, but then why not go for a multi-piston Brembo or the like?

Do not get me wrong, I enjoy and support any experimentation on this chassis, but I am curious to see a response about the weight.
 

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Discussion Starter #18
After further review, I'm curious what your goal(s) are in swapping to this setup. The only advantage I see is the larger rotors, for which you are paying a hefty unsprung (and rotational) mass penalty in the name of some extra thermal capacity you will not need.

The front setup alone is 47lbs per corner, compared to about 35lbs a corner stock. If the goal is mainly looks, fine, but then why not go for a multi-piston Brembo or the like?

Do not get me wrong, I enjoy and support any experimentation on this chassis, but I am curious to see a response about the weight.
Actually main reason is look and keep it close to stock, mean still using bmw parts than second still a lot better brackes and keeping the system working properly with about same amount of caliper pistons. Yes it’s a little heavier than e34 brakes and little more expensive, but not much compared to brembo 6 pistons or AP Racing, and even they don’t have such a big rotor and the multi pistons calipers are a lot heavier than this setup, and not the last point is unique, not many people does that. It’s easy to spend 5k and put some brembo’s.
 
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