Drilled/Slotted Brake Rotors?

RDBill · 09-26-2021, 02:21 PM

Does anyone make drilled and slotted front brake rotors for our cars?

mikec3104 · 09-26-2021, 02:30 PM

Interested in this too. Wondering if it would help with brake dust.

Vigilante375 · 09-26-2021, 08:14 PM

I'm sure someone does and I'm certain there will be a number of people that say the factory rotors are good enough. Which I'm one of them....

As for brake dust.... no. Change your pads to something less aggressive like hawk pads but expect less braking performance but way less brake dust.

d15b7 · 09-26-2021, 08:35 PM

If you are tracking the car hard, you do not want drilled rotors. They will crack (and need to be replaced) well before an undrilled rotor. Plus you are giving up some thermal mass (not good). Slotted don’t seem to crack more often than not slotted, but again giving up thermal mass. neither slotted nor drilled will have any effect on reducing dust. That’s a function of pad material.

JamesNoBrakes · 09-26-2021, 10:58 PM

Slotted has some validity for escaping gasses, but like said above, drilled almost always cracks over the long run and doesn't do anything beneficial...except look cool. There's a reason why most of the high end stuff is solid, thermal mass.

SteveV · 09-27-2021, 05:27 AM

This has been covered many times on this forum. No one makes drilled rotors that I have seen. But, Girodisc does make slotted rotors. https://www.girodisc.com/Camaro-ZL1-6th-Gen_c_3011.html

LT4Greg · 09-27-2021, 06:34 AM

I would go with either slotted or OEM rotors for your ZLE.

EDFHOBBIES · 09-27-2021, 08:50 AM

Yes they make them but you usually end up getting a 1 piece setup however the 2 piece brake will still cool better. Now if you can get a 2 piece rotor that's slotted that is the way to go! you are more at risk for heat cracks though but not nearly as bad as drilled holes. Google companies that slot oem rotors or bite the bullet and do carbon brakes!

FrostZ · 09-27-2021, 11:35 AM

Girodisc makes a set of two piece slotted rotors for both the fronts and rears. The fronts use a non standard pad size that's slightly smaller than OEM as they couldn't create a rotor that saved weight with the same radial depth as our OEM rotors. If you are willing to use a SS 1LE pad shape on the fronts with the slotted rotors then that's definitely an option. The rears use the same pad shape as OEM but are several times more expensive than the stock one piece rotors.

Beescuz · 09-28-2021, 07:06 AM

Quote:

Originally Posted by d15b7

If you are tracking the car hard, you do not want drilled rotors. They will crack (and need to be replaced) well before an undrilled rotor. Plus you are giving up some thermal mass (not good). Slotted don’t seem to crack more often than not slotted, but again giving up thermal mass. neither slotted nor drilled will have any effect on reducing dust. That’s a function of pad material.

Correct. Saw a Corvette with drilled rotors brand new crack them at Summit Point Main this summer.

09-26-2021, 02:21 PM	#1
RDBill 902HP 858TQ Drives: 2018 ZL1 A10 Join Date: May 2018 Location: New Jersey Posts: 135	Drilled/Slotted Brake Rotors? Does anyone make drilled and slotted front brake rotors for our cars?

09-26-2021, 10:58 PM	#5
JamesNoBrakes Drives: 2SS 1LE Join Date: Oct 2011 Location: AK Posts: 2,301	Slotted has some validity for escaping gasses, but like said above, drilled almost always cracks over the long run and doesn't do anything beneficial...except look cool. There's a reason why most of the high end stuff is solid, thermal mass. __________________ Everything happens for a reason, except when it doesn't, but even then, you can, in hindsight, fabricate a reason that satisfies your belief system. 2018 2SS 1LE 2023 Colorado ZR2 2022 Stinger GT-line AWD

09-27-2021, 05:27 AM	#6
SteveV Drives: 2018 ZL1 Camaro 6M Red Hot Join Date: Aug 2013 Location: Cary, NC Posts: 1,137 View My Garage	This has been covered many times on this forum. No one makes drilled rotors that I have seen. But, Girodisc does make slotted rotors. https://www.girodisc.com/Camaro-ZL1-6th-Gen_c_3011.html __________________ People are a lot like slinky's: not very helpful most of the time, but they bring a smile to your face when pushed down the stairs...

09-27-2021, 06:34 AM	#7
LT4Greg Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016 Location: Georgia Posts: 5,813	I would go with either slotted or OEM rotors for your ZLE. __________________ ZL1 Coupe, PDR, Exposed carbon fiber hood insert, My Link with Nav, M6 6 speed and Silver Ice Metallic. Mods done: ceramic window tint, GM Accessories Camaro floor mats and Roto-Fab CAI.

09-27-2021, 08:50 AM	#8
EDFHOBBIES Dyno Show Queen LOL Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014 Location: Houston Posts: 4,345 View My Garage	Yes they make them but you usually end up getting a 1 piece setup however the 2 piece brake will still cool better. Now if you can get a 2 piece rotor that's slotted that is the way to go! you are more at risk for heat cracks though but not nearly as bad as drilled holes. Google companies that slot oem rotors or bite the bullet and do carbon brakes! __________________ Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber

09-26-2021, 02:30 PM	#2
mikec3104 Drives: 2020 LT1 Join Date: Feb 2015 Location: MD Posts: 93	Interested in this too. Wondering if it would help with brake dust.

09-26-2021, 08:14 PM	#3
Vigilante375 Drives: 2018 Camaro ZL1 Join Date: Aug 2018 Location: Georgia Posts: 1,368	I'm sure someone does and I'm certain there will be a number of people that say the factory rotors are good enough. Which I'm one of them.... As for brake dust.... no. Change your pads to something less aggressive like hawk pads but expect less braking performance but way less brake dust.

09-26-2021, 08:35 PM	#4
d15b7 Drives: 2020 Camaro ZL1 1 LE Join Date: Mar 2021 Location: MD Posts: 93	If you are tracking the car hard, you do not want drilled rotors. They will crack (and need to be replaced) well before an undrilled rotor. Plus you are giving up some thermal mass (not good). Slotted don’t seem to crack more often than not slotted, but again giving up thermal mass. neither slotted nor drilled will have any effect on reducing dust. That’s a function of pad material.

09-27-2021, 11:35 AM	#9
FrostZ Drives: 2019 A10 ZL1 Join Date: Mar 2020 Location: Massachusetts Posts: 135 View My Garage	Girodisc makes a set of two piece slotted rotors for both the fronts and rears. The fronts use a non standard pad size that's slightly smaller than OEM as they couldn't create a rotor that saved weight with the same radial depth as our OEM rotors. If you are willing to use a SS 1LE pad shape on the fronts with the slotted rotors then that's definitely an option. The rears use the same pad shape as OEM but are several times more expensive than the stock one piece rotors. __________________ Morimoto Headlights, AWE Touring Catback, MM Catch Can, ADM V2 Reservoir, Roto-Fab, C&R Oil Cooler, 1LE Grills

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