[SUHleen]

Originally Posted by Silver99GSX

You are right there I could make a few bucks LOL. It just took us a long time, a lot of hours, and a lot of $$$$ just to get them right in all the right ways (To get everything balanced right takes the longest time). Plus it looks like that company is already making the brackets, So I might leave it up to them to do all the leg work. But who knows, I'll be going up to my buddies house this weekend to help with his 93' RX-7 with a 2JZ swap. Maybe will put our heads together. I'll let every one know at the end of this weekend. The only thing is I would need to buy another set of the CTS-V's Brake calipers, but this time I'd be using the 6-Piston calipers not the 4-Pistons like I did on my Eclipse.


Justin

Justin,

If the FB company does not end up doing it, I do not mind going in on a set of the 6 pots to help with the costs to make it more of an attractive project for you haha Just let me know and keep us updated if you decide to tackle the project.

- Phil

[Silver99GSX]

Originally Posted by SUHleen

Justin,

If the FB company does not end up doing it, I do not mind going in on a set of the 6 pots to help with the costs to make it more of an attractive project for you haha Just let me know and keep us updated if you decide to tackle the project.

- Phil

Sounds good Phil!!! I should have an idea by the end of the weekend. I just need to make sure we can still use the CNC machine and make sure he's up to another fun brake project LOL.


Justin

[dbjb]

Subbed. Interested if you can work out the kinks

[Eat.Sleep.Race]

mmmmm i want those caliperss

[NocturnalEVO]

I haven't come across a thread that got me so excited in quite some time lolll

I've been dying to get a BBK, but just can't afford to throw $3k at them. Really hoping this pans out

[Silver99GSX]

So I did talk to my buddy about making Brackets for the CTS-V 6-Piston Brake Calipers to fit our BMW's and we both have agreed to give it a shot. But the only thing is that he won't be able to help till around late March (He's the one with the CNC Machine). So I have also contacted the company (CTS-V Brake Swap.com) that are going to be making the Bracket's for our BMW's and spoke to Tanner briefly. He is also a A+ vendor on my DSM forum too. Very nice guy to talk with as well. So They might beat us to it. They are a legit company from my experience with them too. So it may just be a race to which one of us are going to make them first lol. I will keep everyone informed on our progress, as well as a DIY if we do beat them to the punch.


Justin

[335m]

Originally Posted by NocturnalEVO

I haven't come across a thread that got me so excited in quite some time lolll

I've been dying to get a BBK, but just can't afford to throw $3k at them. Really hoping this pans out

Where are you seeing them for $3k? Most I have seen are $4k+

[NocturnalEVO]

Originally Posted by 335m

Where are you seeing them for $3k? Most I have seen are $4k+

lmao i can't afford to look in the vendor section. I've been looking in the classifieds section for a used set haha

[xquisit]

Count me in, thanks.

[johny]

How do you know if these brakes will match the stock master brake cylinder that is found on our cars ? Ive read many cases of people trying to fit the 4 pot f30 brakes on the e90 and saying that there pedal goes all the way to the floor and that there wasn't any grab/bite when pushing on the brakes ...

[SUHleen]

Originally Posted by johny

How do you know if these brakes will match the stock master brake cylinder that is found on our cars ? Ive read many cases of people trying to fit the 4 pot f30 brakes on the e90 and saying that there pedal goes all the way to the floor and that there wasn't any grab/bite when pushing on the brakes ...

I'm not saying it is, but it could be install error with air still in the brake lines. I fitted 135i brakes (6 piston Brembo's) on my old 330ci and had nothing but great things to say about them. I do not think it would be that much of a difference in pedal feel...

[Mutagen]

With the f30 fronts only it felt bornal from what in told but front and rear is no good.

[vwetish]

do you notice the wheel weights?

[Mutagen]

What kinda stupid is that? That's very strange but if I have to out weights on my caliper forget if lol.

[HouseN54]

Originally Posted by vwetish

do you notice the wheel weights?

Why the F is there weights on the caliper?

[ajsalida]

Anyone look at these yet?

E90 Front Brembo 4-piston Caliper Upgrade Kit:

http://rallyroad.net/content/e90-fro...er-upgrade-kit

[Yury]

Bracket is no brainer, we have guys in Moscow who design and manufacture brackets to fit any caliper to any car, at around 200 bucks for pair.

[vasillalov]

Guys, guys,

You can't just slap any caliper willi-nilli. You have to be careful with the caliper piston sizes or the brake balance will go to s#!t. If the piston sizes are way wrong, your brakes may not even function correctly at all.

Also, think about pad choices and wheel fitments.

[SUHleen]

Originally Posted by ajsalida

Anyone look at these yet?

E90 Front Brembo 4-piston Caliper Upgrade Kit:

http://rallyroad.net/content/e90-fro...er-upgrade-kit

This option is not the biggest bbk, but it looks like the best bet to keep things somewhat balanced but still have a decent bbk. It almost looks like the f30 brembos.... I think I may give it a shot. I don't do very many auto cross events but want something a little better than stock and something that looks a little better than stock but also do not want to spend $3k plus on a bbk.

This kit plus ECS's two piece front rotors would be a pretty decent setup. And it comes with stainless lines!

[Cloud9blue]

Originally Posted by ajsalida

Anyone look at these yet?

E90 Front Brembo 4-piston Caliper Upgrade Kit:

http://rallyroad.net/content/e90-fro...er-upgrade-kit

interesting... The weak point in OE sliding caliper design is the tiny pad-to-rotor contact area and the rubber guide bushings (uneven pad wear). The rotor size for 335i is actually decent. Sure two piece rotors would be nicer, but whatever... Wondering what are the specs on these calipers and pad selection.

[zero2sixtyZ]

Let's get to calculating brake bias then..

Found this...

M3forum post on calculating Brake Bias:
http://www.m3forum.net/m3forum/showt...p?p=1065614092
Pulling some data that may help..

Piston sizes / surface area for 09-13 CTS-V calipers:
http://lukeskaff.com/?page_id=333

• Front:
• 09-13 CTS-V (J56 Brembo) 30/34/38mm, 6piston
• Piston area: 8.52 sq. in. (5497.8 sq. mm) Fixed
• Part Numbers: (L) 25912477, 172-2487 (R) 25912967, 172-2488

• Rear:
• 09-13 CTS-V (Brembo) 28mm/32mm, 4piston
• Piston area: 2840 sq. mm Fixed
• Part Numbers: (L) 25911138, 172-2486 (R) 25911233

CTS-V Brake Pad Options (could adjust coefficient of friction):
http://www.cadillacforums.com/forums...-pad-data.html

Anyone have data on our master cylinder? This would also depend on what rotor we could use, or would be optimal. Ideally I'd like to use the Z4 35is 2-piece rotors with these for a few pounds in weight savings.

[ajsalida]

For some reason I can't quote posts, but if you look around the rallyroad.net site, they have a similar brembo kit for rear e9x and also C6 Z06 vette BBK for E36 cars for under 1500. Just throwing it out there for some ideas and maybe price point. No reason a Z06 BBK should cost all that much more for a e9x, here's their brake section. No affiliation:

http://rallyroad.net/catalog/3

Me personally I don't track my car but brake pedal feel is poor IMHO, not so much the stopping power. Not even close to my e36m3, which is 20 years old and stock brakes (well euro rotors + mild street pads). Maybe a properly sized 4-piston caliper and more aggressive pads is the answer for e9x.