Excellent timing to ask that question. I’m working with Girodisc on developing rotors for the 4BW. Prototype should be ready in a couple of weeks and I’ll test it at VIR late April.
ct4 v blackwing upgraded rotors
- Thread starter TRTL PWR
- Start date
This project is for a complete replacement ( hats + rings).
Clearly after you own the hats , you can purchase new rings.
At this point, no option to use OE hat with their rings ( like you can do with C7 / Gen 6)
Matt27
Seasoned Member
Awesome. I think last time these were discussed (potentially for a group buy) pricing was higher than the OE rotors. Be interesting to see what they come in at and obviously the hat/ring system is probably better for the longer term, though admittedly I've never used them.
Updated: KNS brakes confirmed that some other companies are also close to being able to deliver rotors, in addition to Girodisc.
Last edited:
Kanetch
Seasoned Member
Anybody have experience going from an OEM Brembo rotor to an aftermarket Girodisc or DBA? Just curious when these start becoming available for our BWs, are the aftermarket ones more durable? If they cost more can we at least expect a longer life? How much?
Matt27
Seasoned Member
Ugh - hopefully you still had a good day out there. Keep us posted and thanks for putting in the time.
PL69
Seasoned Member
Any updates on this ? I am selling my G80 M3 to buy a CT4BW. I go to the track at least 10 times per season.
I found the part numbers for Ferodo DS3.12 pads if anybody is interested.
Front: FRP3133G
Rear: FRP3137G
I found the part numbers for Ferodo DS3.12 pads if anybody is interested.
Front: FRP3133G
Rear: FRP3137G
TRTL PWR
Seasoned Member
no updates on rotors that I'm aware of...ive been looking
Girodisc is working with an additional tester to resolve the issues we were facing.
In the meantime, I've purchased OE rotors from Rockauto. Original OE GM number was changed.
New numbers are:
86783048
86783049
Paid $1115 delivered + tax
In the meantime, I've purchased OE rotors from Rockauto. Original OE GM number was changed.
New numbers are:
86783048
86783049
Paid $1115 delivered + tax
strohw
Seasoned Member
The rears aren't correct. We have the same fronts as the Camaro SS but not the rear. Mbar mentioned he thought it was the zl1 rear brake.
PL69
Seasoned Member
strohw
Seasoned Member
Is it the same pad as the zl1 rear? I haven't got around to looking it up yet.
PL69
Seasoned Member
We need to figure all these things out, these cars deserve being used in the way they were designed !
Kanetch
Seasoned Member
I asked Coby at KNSBrakes about that exact Giro part num. He claimed it will not fit our Brembo hats. Unfortunately he gave no details as to why.
PL69
Seasoned Member
@strohw So this would be the ZL1 1LE pad, only difference seems to me thickness, shaving 1mm isn't the end of the world but there are good chances they fit straight up. I saw your post where you tried the other shape (ss 1le was it?) And they were going over the edge and missing on the inside.
www.ferodoracing.com
FERODORACING - FCP1348G
FERODORACING - Car Racing Brake Pads - FCP1348G - DS3.12: GT, V8, Stock Car, heavy duty track use
Last edited:
strohw
Seasoned Member
@strohw So this would be the ZL1 1LE pad, only difference seems to me thickness, shaving 1mm isn't the end of the world but there are good chances they fit straight up. I saw your post where you tried the other shape (ss 1le was it?) And they were going over the edge and missing on the inside.
FERODORACING - FCP1348G
FERODORACING - Car Racing Brake Pads - FCP1348G - DS3.12: GT, V8, Stock Car, heavy duty track use
Ok. I'm probably going to run the stock rear pads until they die and make a decision then.
jodakid69
Seasoned Member
Here are the ones I just had installed. My First track day is on Monday July 3rd. We will see. The rears are slightly smaller that the stock OEM pads, but the tech did not mention an issue.
UPDATE: First track day using these pads.
My report is that I see improvement with stopping power once you are up to temperature at the Track. I did an unscientific test by reviewing PDR recordings on the same track with the stock pads and then with the EBC pads. I max speed to the NJMP start-finish tower is 133MPH at which point I go on full brakes. The EBC pads seem to perform about the same from 135 down to 110MPH - Marker 3, but then improve between 110 and 95 @ Marker 2. That was my impression at the track that the stopping grip increased with the new EBC pads. With the stock pads, stopping was either linear or with a slight fade. For now, I will keep braking at the tower and enjoy the better safety margin.
Stock Pads @ the 2 Marker:
EBC Pads @ the 2 Marker:
| DP81853.15SR11 | EBC SR11 Race Pads 2019 Cadillac ATS-V All Models - Front |
| DP83023.15SR11 | EBC SR11 Race Pads MPN: DP83023.15SR11 |
UPDATE: First track day using these pads.
My report is that I see improvement with stopping power once you are up to temperature at the Track. I did an unscientific test by reviewing PDR recordings on the same track with the stock pads and then with the EBC pads. I max speed to the NJMP start-finish tower is 133MPH at which point I go on full brakes. The EBC pads seem to perform about the same from 135 down to 110MPH - Marker 3, but then improve between 110 and 95 @ Marker 2. That was my impression at the track that the stopping grip increased with the new EBC pads. With the stock pads, stopping was either linear or with a slight fade. For now, I will keep braking at the tower and enjoy the better safety margin.
Stock Pads @ the 2 Marker:
EBC Pads @ the 2 Marker:
Last edited:
Similar threads
Win 2 Supercharged Cadillacs!
Supporting Vendors
