cfjan

So they never make the setup that Atgani tested into production? Because it looks like he was using the stock calipers... ?!

NJ-GT

StopTech makes a STR kit that is a little lighter than the Brembo GTR. The STR contains new billet calipers and two piece alu/iron rotors. They are racing in the Speed WC with these brakes. They are as light as the stock PCCB but better performance.

Optionally, you can get the StopTech CCB rotors, they are available for any STR kit, and they are a lot lighter than any OEM CCB/PCCB.

mikymu

They make one for GT3? Can we use the OEM calipers?

NJ-GT

996, 997.1, 997.2 GT3/RS/GT2.

New calipers in the kit. STR60 uses cast iron rotors and aluminum hubs, as light as the stock PCCB. With the Stoptech CCB rotors for the STR60, you lose close to 30 lbs on unsprung weight compared to PCCB.

Atgani

The ST rotors weighed slightly more than the standard PCCBs ( sorry it's been a few years now so I can't remember the exact figure) but for the sake of arguement the ST rotor was something like 6.7 kilos as opposed to the original PCCB at 5.5 kg The stock 350 mm steel rotors were somewhere between 10.5 and 11.5kg IIRC ?

As I understand it the ST rotors were priced competitively when compared to the original (still available) gen 2-3 350mm PCCB rotor.

The rotors are manufactured from Carbon Silicon Carbide and utilise the existing callipers.

http://surface-transforms.com/siteengine/120/CFRCs.stm

I sold my car and retained the rotors, there were issues with pad compounds (the compound recommended by Pagid gave inconsistent performance) it appears that the inconsistency was due to incorrect bedding in rather than the compound being incorrect.

I intend to fit the rotors to another GT2 or possibly to another project car I'm planning.

NJ-GT

The STR (new kit) calipers are much lighter than the stock Porsche GT2/GT3 calipers, about half the weight, the STR rotors are a little lighter than the ST rotors.

The new STR kit has about the same weight of the stock PCCB (rotors and calipers combined) , and the STR kit with CCB is 26 lbs lighter than the STR kit with cast iron rotors.

DK911

Having had both, I have to disagree. For the track, I'd take steel because of the expense of replacing the PCCB's (I'm talking about tracking for fun here, if I was being paid to win I'd use PCCB's of course).

For the street, I like the PCCB's. They last forever in street use. They don't squeel (at least mine don't). My steel rotors would always squeel like a garbage truck at every stop light, and it's worth the price to me just to get rid of that. I don't see and dis-advantage for street use other than the initial price. Why do you think steel is FAR superior for street use??

Nizer

NJ-GT: Would love to see actual side-by-side numbers to verify weight claims (PCCBs vs STRs as well as the carbon upgrades). Can't find anything on StopTech's site and I emailed Fabryce at GMG asking same question a few days ago but haven't received a response (suspect they're a little busy prepping for Daytona).

Backmarker

I had a quote from Movit a few years back and they were almost same cost as gen 2 pccb for my 996gt3

BTW I went from pccb/p50 greens to deman/rs29 and noticed no difference in handling and minimal difference in performance of brakes

My plan is to buy up all the pccb rotors rotting in garages in 10 years when everyone has moved on to other cars and the wife lays down the law on those $10k discs...

GT3

Link, please?

mikymu

LOL ... Hope I can get my hands on some used PCCB before you

Movit is .... $$$$$$$

I am working with David Zeckhausen to get all the weight spec on the stoptech rotor. Give us couple more days ... stay tune

Nizer

This is all I could find on the CCBs. Not much info:
http://www.stoptech.com/company_info...peedster.shtml

Here's what they have on big brake kits. Again, not much hard data to allow verification of weight claims:
http://www.stoptech.com/Products/BBK/summary.shtml

mikymu

Here is what David Zeckhausen found out for me on the StopTech 2-piece floating rotor direct replacement for PCCB. 15.9 lbs rear is pretty amazing considering rear PCCB weigh 12 lbs and steel OEM rear rotor weigh 22 lbs.

Front Rotor

22.1 pounds total per rotor assembly
380x35mm AeroRotor: 19.4 lb
Front hat: 2.15 lb
Mounting hardware: 0.2 lb

Rear rotor

15.9 pounds total per rotor assembly
345x28mm AeroRotor: 12.5 lb
Rear hat: 3.15 lb
Mounting hardware: 0.2 lb

cfjan

So StopTech does have PCCB direct replacement?!

Do they have 350mm front for the 6GT3? From the webpage, doesn't appear to be..

GT3

That is pretty good.




Any info on the ST carbon ceramic rotors?