BBK for a 128i

[pj.rodriguez]

Damn^^ I would've taken them

[Kgolf31]

Originally Posted by Blacksport

I think my wallet can handle it, STG

My M Roadster has over $10,000 in it...3 piece OZ wheels, Eisenmann stainless exhaust, differential bracing and finned cover; those Wilwood calipers were not a kit, I adapted them and made the brackets.

Same with my Durango...that was a Yukon kit that I adapted to the Durango...Wilwood had a pic of the job on their home page for a few months, and their engineer called me with some questions he had.

Even my Yamaha FZ1 has 6 piston calipers adapted from an R1....that's over $3500 worth of Ohlins forks and rear suspension.

Congrats.

Funny you say that.

I don't have $10,000 in my M Coupe.

It has OEM Wheels, RS3s, Front Swaybar, Rouge Diablo Exhaust, PFC 06s on stock calipers and rotors (oh my!), and a ZHP Shift Knob and track time.

I think it does just fine:





Oh, and my cheap set-up still performing well against a crowd of 100+ drivers. Don't need $3k brakes to stop a car

[pj.rodriguez]

Originally Posted by Kgolf31

Congrats.

Funny you say that.

I don't have $10,000 in my M Coupe.

It has OEM Wheels, RS3s, Front Swaybar, Rouge Diablo Exhaust, PFC 06s on stock calipers and rotors (oh my!), and a ZHP Shift Knob and track time.

I think it does just fine:





Oh, and my cheap set-up still performing well against a crowd of 100+ drivers. Don't need $3k brakes to stop a car

LoL. Don't forget the vinyl numbers! Those cost you a few bucks and it's a nice little mod!

[pj.rodriguez]

And btw to kgolf31, I'm going with carbotech pads since I was reading some decent reviews on them and they offer the pads for a 128, both street pads and combo pads and full race pads.

[Blacksport]

Originally Posted by pj.rodriguez

Damn^^ I would've taken them

Snooze you loose.....

[Blacksport]

Originally Posted by Kgolf31

Congrats.

Funny you say that.

I don't have $10,000 in my M Coupe.

It has OEM Wheels, RS3s, Front Swaybar, Rouge Diablo Exhaust, PFC 06s on stock calipers and rotors (oh my!), and a ZHP Shift Knob and track time.

I think it does just fine:

Don't need $3k brakes to stop a car :rolleyes

Car looks really good, KG, it's rolling over a little more than I'd like, but that's minor....very nice looking car...what engine is in that? It's not the S54 333hp like my M, is it?
YES, you don't need $3k brakes, at least not in a parking lot you don't....my BMW performance fronts were only $1400.....

[Kgolf31]

Originally Posted by Blacksport

Car looks really good, KG, it's rolling over a little more than I'd like, but that's minor....very nice looking car...what engine is in that? It's not the S54 333hp like my M, is it?
YES, you don't need $3k brakes, at least not in a parking lot you don't....my BMW performance fronts were only $1400.....

Limited to rules for certain classes, thus that is why I'm on stock springs/dampers.

I can upgrade the dampers to DAs or similar, but I can't justify spending $2k on shocks right now.

It has the S54.

I also run on airports...and track.

[TheSt|G]

Originally Posted by Blacksport

Car looks really good, KG, it's rolling over a little more than I'd like, but that's minor....very nice looking car...what engine is in that? It's not the S54 333hp like my M, is it?
YES, you don't need $3k brakes, at least not in a parking lot you don't....my BMW performance fronts were only $1400.....

Sigh.

[GMD]

BBK noob here with a question: I thought that the major advantage of a "BBK" was heat dissipation, therefore you get a more consistent pedal feel after lots of hard breaking (less fade?), not necessarily harder breaking. Obviously there may be some exceptions, but in general is this a correct assumption?

Thanks

[Kgolf31]

Originally Posted by GMD

BBK noob here with a question: I thought that the major advantage of a "BBK" was heat dissipation, therefore you get a more consistent pedal feel after lots of hard breaking (less fade?), not necessarily harder breaking. Obviously there may be some exceptions, but in general is this a correct assumption?

Thanks

Yes, this is the benefit towards BBK.

Typically though, unless you're doing Time Trials, Wheel to Wheel Racing...or some other sort of competitive driving on the track...full blown race pads on stock calipers/rotors are sufficient.

You basically have a larger rotor/pad with a BBK, thus you get more thermal mass to dissipate heat.

[Hops128i]

there was a fairly large thread on a brake limp mode supposedly caused by an algorithmic calculation involving parameters like speed, brake pressure... etc, I wonder if a BBK would effect the limp mode ... just wondering

[pj.rodriguez]

Originally Posted by Hops128i

there was a fairly large thread on a brake limp mode supposedly caused by an algorithmic calculation involving parameters like speed, brake pressure... etc, I wonder if a BBK would effect the limp mode ... just wondering

I think I took a read on that thread. Not sure if anyone has since tried installing a BBK and seeing if the limp mode still kicks in after a while. But something tells me that it would since it's based on speed, brake pressure, etc. There's not a single temperature indicator that could change what the computer thinks is happening.

[TheSt|G]

Originally Posted by GMD

BBK noob here with a question: I thought that the major advantage of a "BBK" was heat dissipation, therefore you get a more consistent pedal feel after lots of hard breaking (less fade?), not necessarily harder breaking. Obviously there may be some exceptions, but in general is this a correct assumption?

Thanks

While they do generally have better heat dissipation as well, heat capacity would be the primary benefit. Other than that, you are spot on.

[maupineda]

My 335i Brakes work wonders in my 130i. And they are big so i call it a BB setup :P

[Blacksport]

Originally Posted by maupineda

My 335i Brakes work wonders in my 130i. And they are big so i call it a BB setup :P

That's a good description....mine are well seated now, the difference is really amazing...

[TheSt|G]

Here's a thought for you guys:

If the 135i/BMW Performance brakes are so great, why did BMW specifically not use them on their top performance spec car of the segment, the 1M? Arguably that is the car most setup to be pushed from the factory.

[Kgolf31]

Originally Posted by TheSt|G

Here's a thought for you guys:

If the 135i/BMW Performance brakes are so great, why did BMW specifically not use them on their top performance spec car of the segment, the 1M? Arguably that is the car most setup to be pushed from the factory.

Because BMW didn't want the 1M to overbrake the 135i...duh.

We all know this answer

[Blacksport]

Originally Posted by Kgolf31

Because BMW didn't want the 1M to overbrake the 135i...duh.

We all know this answer

Here's some reasons:

They wanted the best brakes that would fit on that car, so they used M3 brakes, 14.2 front, 13.8 rear.

They knew they'd be running 19" wheels...BMW, like me, thinks a wheel should be stuffed with rotor...the 13.3 rotor would look too small with a 19.

Think about the torque advantage with a 14" rotor over a 13" rotor...huge...now think about the torque advantage over an 11" rotor. Stupendous! Actually, I looked at the 14.2 setup but nixed it for 2 reasons: I didn't want to use 19" wheels, and that setup uses a 2-piston cast-iron sliding caliper...that's a no-no on the front of one of my cars...

[TheSt|G]

Originally Posted by Blacksport

Here's some reasons:

They wanted the best brakes that would fit on that car, so they used M3 brakes, 14.2 front, 13.8 rear.

They knew they'd be running 19" wheels...BMW, like me, thinks a wheel should be stuffed with rotor...the 13.3 rotor would look too small with a 19.

Think about the torque advantage with a 14" rotor over a 13" rotor...huge...now think about the torque advantage over an 11" rotor. Stupendous! Actually, I looked at the 14.2 setup but nixed it for 2 reasons: I didn't want to use 19" wheels, and that setup uses a 2-piston cast-iron sliding caliper...that's a no-no on the front of one of my cars...

Just like on the CSL right? Oh....

[maupineda]

335i brakes are in my book the best option due to...

1. Cheap
2. Out brake the 6 piston setup in the 135i
3. Fill the 18in very nicely
4. Even the caliper looks nice and purposeful, more so than the 345mm ZHP/CSL E46 ones.

[andrey_gta]

Originally Posted by maupineda

335i brakes are in my book the best option due to...

I agree, for a larger caliper & rotor upgrade, not quite a true pro BBK, this is a good method. It was on my list when I found my 135i brake kit for less.

[Blacksport]

Originally Posted by TheSt|G

Just like on the CSL right? Oh....

That's real nice, StG, but that's the rear wheel...

Here's a shot of the 1M's front wheel with it's big 14.2" rotor....a 13" rotor would look small, and the 11" 128i rotor would look pitiful.