Am I the only one who read through all the drivel in the Press release or did I miss a thread? BMW is getting serious with this cars performance. I copied this:
"The Sports Suspension also includes with a high-performance brake system incorporating six-piston fixed calipers on the front and two-piston fixed calipers at the rear."

This is really a little sleeper, lighter than a Three, better brakes and cheaper. I may have to re-think Euro delivery on a 335.:firedevil

You just missed everybody talking about it.

Yep, the secret is out. The E92 M3 only has 2 piston calipers, but a much bigger diameter.

I wonder how hard it will be to DIY a LSD on the 135? Coilovers + LSD = a little monster.

Yep, the secret is out. The E92 M3 only has 2 piston calipers, but a much bigger diameter.

I wonder how hard it will be to DIY a LSD on the 135? Coilovers + LSD = a little monster.
Monster indeed. I don't think I'd go coilovers, but Procede and a LSD would melt my butter.

i want the freaking 5 door hatch!

Yep, the secret is out. The E92 M3 only has 2 piston calipers, but a much bigger diameter.

I wonder how hard it will be to DIY a LSD on the 135? Coilovers + LSD = a little monster.

I'm sure most any of the LSD custom shops will gladly make an LSD for your car.

6 piston calipers = marketing BS.

6 piston calipers = marketing BS.
Well, 6-piston calipers don't guaranty a great braking system, but some of the best braking systems in the world use 6-piston calipers. I'd like to know the supplier. They don't look like Brembos from the photos...

btw, the front brake is about 13". saved me a lot of money on bbk

btw, the front brake is about 13". saved me a lot of money on bbk
The rotors are very thin though, so while they provide a good deal of brake torque, they may not have that much thermal reserve and may not stand up to prolonged hard use, due to their relatively low mass.

With iron rotors, it's the mass of the rotors (and effectiveness of the air cooling) that determines how much energy they can dissipate. With a heavy and fast car, you need alot of mass in the rotors!

The rotors are very thin though,


Since when is 25mm "thin"? With ducting, and 400lbs less then the E92 M3 it'll be fine. Go check what Porsche stuck on your Carreras.

my E28 had wider rotors than that.... course they were off a 750iL... :D:D:D:D

IIRC front, vented widths around 30mm are pretty common.

Since when is 25mm "thin"? With ducting, and 400lbs less then the E92 M3 it'll be fine. Go check what Porsche stuck on your Carreras.
32mm thick rotors on my 1973 Porsche (weighs 1,890 lbs)

Since when is 25mm "thin"? With ducting, and 400lbs less then the E92 M3 it'll be fine. Go check what Porsche stuck on your Carreras.
Ouch dude...you do know that along with handling, one of the best features of a Porsche is the brake system? :D

Ouch dude...you do know that along with handling, one of the best features of a Porsche is the brake system? :D
I know !!
Years ago I had a 2002 racecar with Porsche 930 brakes. The rotors were 2 piece with aluminum hats and aluminum metal-matrix rings. Each rotor weighed 4lbs (car weighed 2100lbs). They were 300mm x 22mm.

I'm sure most any of the LSD custom shops will gladly make an LSD for your car.

Well, Dinan is rumored to be working on one for the 335...makes sense they'd be looking into this one too. I'm sure they'll have a nice low price to pick that up. :eyecrazy

I know !!
Years ago I had a 2002 racecar with Porsche 930 brakes. The rotors were 2 piece with aluminum hats and aluminum metal-matrix rings. Each rotor weighed 4lbs (car weighed 2100lbs). They were 300mm x 22mm.
930 brakes are 304mm diameter by 32mm wide...

930 brakes are 304mm diameter by 32mm wide...

Ok, 304mm. But I'm holding an old rotor and it measures 22mm, and I know we had OE 930 calipers (4 piston fronts, 2 piston rears). I don't know ...

Ok, 304mm. But I'm holding an old rotor and it measures 22mm, and I know we had OE 930 calipers (4 piston fronts, 2 piston rears). I don't know ...
How worn is it and what are you using to measure?

Ok, 304mm. But I'm holding an old rotor and it measures 22mm, and I know we had OE 930 calipers (4 piston fronts, 2 piston rears). I don't know ...
930's (1978-1989) had 4-piston calipers in front and rear (304mm X32 front and 309mm X 29mm rear, all cross-drilled rotors), developed from the 917 racer and 1973 Carrera RSR.

The 1976-1977 930 calipers were 2-piston in front and rear (and had much smaller non-drilled rotors - both calipers and rotors are from the 911S and these early brakes are not generally referred to as 930 brakes)

How worn is it and what are you using to measure?
Well it wasn't worn 10mm... yikes.
I know the size of the rotor, but I never measured the calipers. Maybe (although I honestly don't remember doing it) we had the calipers modified?

Well it wasn't worn 10mm... yikes.
I know the size of the rotor, but I never measured the calipers. Maybe (although I honestly don't remember doing it) we had the calipers modified?
Yeah, the 32mm thick rotors are supposed to be discarded when they reach 30mm.