Calling all Brembo Owners...

[m3f_reefer157_a2694f778b]

I am looking into the investment of the Brembo GranTourismo BBK. The 355 mm are calling my name. Anyone done this? I am predicting that I will have to upgrade to a 19" rim to accomodate the larger calipers. I would like to hear what you guys have to say on this. A buddy of mine had his fenders "rolled" to accomodate some BBS 18's, never heard of anyone else doing that.



Lemme know



Cameron,



'95 Hellrot M3

'73 Inka 2002

[m3f_Tpb31_67f747186d]

What kind of mods do you have or plan to do? That might be a bit of overkill for you braking needs. But I have to say, they will look pretty nice sitting behind some nice rims.

[m3f_reefer157_a2694f778b]

I don't have any "go fast" mods yet, just a few suspension things. I love the look of the Brembo's behind there and I figure if you're gonna spend the money for the looks you may as well get the best performance too. I hate getting something regreting later that I didn't get the next step up.



If you get the Bavarian Autosport Catalog, they have a new set of brakes from a company called ZMI, its on page 17. Check them out. What do you think of them? Never heard of ZMI before though.



again, I want to get the 355mm (14 inches, I had to look at my ruler) but don't know what size or type of rims will work with the bigger disc and caliper. I want to stay away from wheel spacers.



Thanks for your reply,



Cameron



'95 Helrot M3

'73 Inka(Orange) 2002 (Where it all started)

[m3f_95RogueM3]

Well the brembo bbk is indeed overkill unless you are combating brake-fade on the track..but as you said they look cool..and that is important in my book.



There isnt a need to go to 19" wheels as there are plenty of 18" wheels that will accomodate the big bbk. One major exception is ACS wheels as they arent BBK friendly.



While I am unsure of the caliper dimensions of the Brembo 355mm kit, if you go to www.uucmotorwerks.com they also offer a 355mm kit and while I am not suggesting you should buy their kit..they have a wheel clearance guide.



Another, better, option would be to call tire rack as they offer the brembo 355mm kit as well as a wide variety of wheels..so most likely they could give you an idea of what wheels would fit over the kit nicely.



-Richard

[m3f_mazur_fc5757570e]

The M3 project car on European Car magazine has the 14'' Brembos rolling on 18's, so you should be fine.



Here's the link to the section about the brembos they installed (http://www.europeancarweb.com/projectcars/0209ec_m3project/)

[m3f_DSK M3/4_7bd32f4682]

the ZMI stuff is pretty cutting edge stuff- i don't know anyone who's tried it. if you really want the "wow" factor, and don't mind spending the cash, it might be the way to go. in theory, they sound awesome.



the 355mm kit is massive- you're talking viper territory. they will fit under a lot of 18" wheels. but honestly, unless you are running BIG horsepower and hitting the track a lot, they are going to go to waste. most M3s just can't manage to hit the kind of speeds that require use of those brakes.

[m3f_M3AN_5f4dc0ba80]

Yes, 355's will fit under 18's in diameter terms, you'll need a calliper offset chart to make sure the 6-pots fit behind your wheels. Brembo will have a cutout they can provide you with.



I also agree with everybody else, 355's will be overkill for your needs and this car. Consider the 330mm 4-pot option, you'll save some valuable $$$.



As for ZMI, never heard of them and that's not a good thing. Get Brembo or AP Racing, followed by StopTech and a few others... that seems about it.

[m3f_95RogueM3]

but honestly, unless you are running BIG horsepower and hitting the track a lot, they are going to go to waste. most M3s just can't manage to hit the kind of speeds that require use of those brakes.



Are your thoughts that ss lines, axis pads (for example), and a refreshed fluid enough to handle just about all the bolt-on mods?



Do you think the 332mm kit is overkill in the same manner as the 355mm kit, for those not really tracking more than one day a year?



Is it useless as well for the kit to be matched front and rear if i were to go to a bbk...332mm front, 328mm rear?



Finally, are x-drilled rotors so bad? I am talking about the ones offered by Brembo which are said to be machined and chamfered just right.



Thanks Dskm3/4.



-Richard

[m3f_SG_M3_d1201712b5]

My car with stock lines, ate blue, and axxis pads holds up fine on street tires at a DE.



332mm is overkill unless you are tracking heavily. But it will provide better fade resistance and better modulation. If i had the money, i'd buy the stoptech 332mm kit.



the 332 kit with the properly matched rear pads will be fine.



The x-drilled will crack on the street. Club races in stock classes run stock US rotors, not even floaters, that should say something.

[m3f_M3AN_5f4dc0ba80]

Are your thoughts that ss lines, axis pads (for example), and a refreshed fluid enough to handle just about all the bolt-on mods?



Yep, IMO they are... and if they weren't, a set of Euro floaters at your next rotor replacement would take care of it.





Do you think the 332mm kit is overkill in the same manner as the 355mm kit, for those not really tracking more than one day a year?



Yes, but they're very cool looking...





Is it useless as well for the kit to be matched front and rear if i were to go to a bbk...332mm front, 328mm rear?



No not useless but unnecessary IMO. The balance won't be out by enough to worry (maybe a little too much with 355's though).





Finally, are x-drilled rotors so bad? I am talking about the ones offered by Brembo which are said to be machined and chamfered just right.



No, they're not. This is contrary to general opinion though. Properly made cross drilled rotors from a reputable manufacturer should not break (and are warranted not to break) even under relatively extreme usage. AP Racing and Brembo both have discussion papers on this and they are adamant that the common understanding is a misconception based on experience with less reputable rotors. I believe them.