Yup, that's the actual color of the phosphorus coating! It's even darker in person.

They have the highest carbon content of ANY cast iron rotor on the market. Because of this, their thermal properties are superior to ANY aftermarket rotor - they can take more heat AND dispense with it faster. They outperformed Brembo replacements in head-to-head testing and are some of the finest OEM replacements on the market. Our vendor insists the performance will be better than ANY other aftermarket replacement rotor, bar none.

We'll be installing these and a set of Porterfield R4-S pads on a donor car this Saturday at the TSW WHQ.

In the very near future (4-6 weeks), we'll be offering:

1. Front or rear rotors a la carte.
2. Front and rear rotor package.
3. Front and rear rotor package with Porterfield pads of your choice (R4-S for the street/AX and R4's for the track (which Dr. Mike tested and loved before going BBK).
4. Complete brake kit - all 4 rotors, Porterfield pads of your choice, SS lines, and Motul RBF600.

Front rotor:


Rear rotor:

 

Initial pricing on the rotors looks like this:

Front rotors only - $119 a set
Rear rotors only - $99 a set
Front and rear - $199 for all 4

This is subject to change, but shouldn't change more than a few bucks either way (up or down).

Once we place the order, we'll have these in hand in 3-5 weeks (depending on freight and customs).

 

They look pretty good. If you don't mind me asking, what country are these being made in?

 

I could tell you, but then we'd have to kill you...

Once we have a big stack here, I can share the country of origin... If I shared the country of origin, we'd be giving up competitive advantage since it would be pretty easy to track down our supplier. That's just something that we don't really want to do at this point...

Suffice it to say that these are top quality, made in a state-of-the-art facility (ISO certified), and this company supplies rotors to several race series in their region. They have been around for 30+ years making nothing but brake rotors. They own 60% market share in their home region and 35% market share in their other center of operations. They supply many OEMs and assembly plants, too.

 

Any chance that you'll be getting these with holes suitable for the new 14mm lugbolts?

 

That's cool, I understand. You have reassured me. You understand, I know, that I just don't want to be coming down some long straight at 110 and find out that they were made in Uzbekistan out of old soup cans.
(No offense intended to the glorious nation of Uzbekistan.)

 

Sure, the day after my rotors arrive in the mail I see these...

 

Well, we're working on a stud solution that would eliminate that need... BUT, for those that want to stay with the M14x1.25 bolts, I can contact our supplier... I need to get my hands on some of the new rotors with the larger holes, get out the digital calipers, and compare to the old ones...

 

I bought some Brembos that await installation. I didn't take into consideration the fact that they weigh so much. Any way of knowing how the TSWs compare to the OEM rotors in terms of weight.

 

Can you comment on the interesting shape of the grooves? Specifically how they compare to the more traditional directional vanes?

Thanks

Interesting stuff coming out of TSW lately, keep up the good work. Can't wait for your coilovers

 

We just compared them head to head... ours are only slightly less weight, 0.5 pounds lighter on the fronts and the same weight as OEM in the rear...

 

The slotting is setup that way to ensure that gases always have somewhere to go, no matter where the pad is in relation to the slotting.

 

How do these compare in diameter to the rotors of my JCW bbk? Would I be able to do a plug-and-play replacement?

 

How about the new frt. GP rotors with 14mm holes for those who want to stay with the stronger 14mm lugs or studs. They'll be on all r56 S cars coming out.

Very nice and functional looking rotors.

 

Weight?

 

11.5 pounds for the fronts - according to our scale, a brand new OEM from the dealer weighed 12 pounds... The rears are slightly lighter than OEM, too, but only slightly - could be within the margin of error of our scales.

 

These are OEM size... IIRC, the JCW BBK rotors are larger? The rears would work, though. Our supplier doesn't have an offering for the JCW yet... We can look into that, though.

 

We'll be sending them a new OEM rotor with the 14mm holes for reference, as soon as we can get our hands on one...

 

im currently testing these rotors out for tsw so if yall have a ? then just ask and ill be happy to respond to it

now thats out of the way

im running the porterfield brake pads that are for autox and street with the rotors and i have a nice set of cooper tires

it usually takes about a couple of days for them to break in and after that it depends on the conditions

i have been driving on both dry and wet surfaces and doing both soft stops and hard stops turning into corners with e brake

the dry surfaces have been a dream they stop on a dime without abs ever ingaging

as for the wet side with the down pour and the road being saturated the rotors preform better then the oem i would say the only time that abs has ever come on in a wet situation was in the hard brake never in the soft brake

anything else just ask

 

Thanks guys for your help. How are the 14mm studs coming along?

 

Quotes are still coming in, but I think we have the conversion studs nailed... After ordering, it'll take 4-6 weeks to get them in hand. They'll look a whole lot like the Turner studs, with a bullet nose and black oxide finish.

 

Thanks again.

 

Rotors are on the way... should have them in hand in 4-6 weeks...

 

These are on the way... 30 days from arrival!

 

Any update on your new carbo-ferro-phospho-slotto rotors? Getting itchy here. Spring is coming, gotta have brakes. Did the ship get lost?

Seriously, is there any reason I shouldn't use these with Hawk HPS/HP+ ? I know you sell Porterfields, but I have some Hawks in hand.