Brembo Press Release Including Technical Specs For Its C8 Stingray Brakes

[John]

Always nice to have source information on the C8. Thanks Brembo. https://www.brembo.com/en/Comunicati...20%20Final.pdf

[JB]

Cool braking system information.

fwiw some enthusiasts are missing the slots in the rotors...

i could care less yet I have a feeling the aftermarket will meet the desires of slotted rotors..

i wont buy them but it will be interesting to see how many corvette owners do.

[Phil1098]

That's interesting stuff, thank you John. OK, here is what I noticed, they are using a new Non-Asbestos-Organic pad on the base car and low-met (assuming low metallic) pad on Z51. Z51 also gets monobloc calipers at all four corners, but base gets them on the rear (same part number too, even though Z51 gets larger rotor). In the past, organic brake pads have generally produced tons of brake dust. It will be interesting to see if these do too. I am actually excited about the EPB as I always set the parking brake before I put an automatic in park so I don't put a load (assuming some grade) against the transmission.

I would say the thing that hits me the hardest is the fact the rear rotors are larger than the fronts. Now before somebody says well duh Phil, its mid engine, a 911 Porsche uses same size rotors front and rear and it's a rear engine car putting even more weight on the rear wheels. This C8 is not going to have any perceptible nose dive at all, it's going to be more like an open wheel race car in that regard. I can't wait!

[HMDS]

Looks to me like the z51 gets same size rotors all around and that the front pads are larger on both models.

[pfbz]

Looks to me like the z51 gets same size rotors all around and that the front pads are larger on both models.

Just for completeness, the order guide says Z51 also gets staggered rotors, 345mm front, 350mm rear (vs. 321mm/339mm standard). Looks like they inadvertently left out the Z51 front rotor size in the Brembo press release.

Big, but not huge. My guess is the Z06 C8 will go to six-pot brembos and 380mm rotors.

But really brake cooling is typically the issue... 350mm rotors with air ducts that provide great cooling will easily out-perform 380mm rotors with so-so cooling. Time will tell, but the C8 isn't a lightweight at 3,400 pounds. Add plenty of power and what will almost certainly be very high speeds by the end of longer straights, and if it has poor cooling it will become extremely evident (and a key limitation) when tracking these guys.

Anyone stick there head down to look for brake cooling ducts on any of the C8 prototypes being shown around?

[HMDS]

Just for completeness, the order guide says Z51 also gets staggered rotors, 345mm front, 350mm rear (vs. 321mm/339mm standard). Looks like they inadvertently left out the Z51 front rotor size in the Brembo press release.

Big, but not huge. My guess is the Z06 C8 will go to six-pot brembos and 380mm rotors.

But really brake cooling is typically the issue... 350mm rotors with air ducts that provide great cooling will easily out-perform 380mm rotors with so-so cooling. Time will tell, but the C8 isn't a lightweight at 3,400 pounds. Add plenty of power and what will almost certainly be very high speeds by the end of longer straights, and if it has poor cooling it will become extremely evident (and a key limitation) when tracking these guys.

Anyone stick there head down to look for brake cooling ducts on any of the C8 prototypes being shown around?

Thx for that, I have not read the order guide.

[HMDS]

My daughter and I went out to phx this weekend to look at a blue z51- which was absolutely mobbed with fans.

The front brake ducts ended and dumped at the wheel well. There were no deflectors or tubing to get the air to the rotors. Maybe it was incomplete as it is a preproduction tour car.

On the rears, maybe I missed it,but I saw no provision to provide fresh air to the rotors. Zero.

The car was cool and I like it.

[C7Redneck]

Ahhhh brakes. My biggest issue with my C7 Z51 and why i’m waiting for the C8 Z06.

A mid engine has the advantage of rear weight / braking to even out the heating and wear. Yay!

But here is what concerns me about tracking the C8 Z51 brakes, at least at my altitude. Denver.

Notice all the screws you have to remove each time you want to inspect or swap pads? 3 I think from the back side! It might be better than those C7 style pins though!

I’m wondering what the zero Cu no asbestos pads are going to do to heat build up and brake fade?

Third, we have a new electrical braking system. I’m anxious to hear if you can feel the brakes fade and mush through your toes or whether, like the electrical steering, we have to rely on other senses?

Forth, it seems the parking brake is really the rear brake pads. Correct? So if they are hot or wet you’d better not set the parking brake.

[meyerweb]

Ahhhh brakes. My biggest issue with my C7 Z51 and why i’m waiting for the C8 Z06.

A mid engine has the advantage of rear weight / braking to even out the heating and wear. Yay!

But here is what concerns me about tracking the C8 Z51 brakes, at least at my altitude. Denver.

Notice all the screws you have to remove each time you want to inspect or swap pads? 3 I think from the back side! It might be better than those C7 style pins though!

I’m wondering what the zero Cu no asbestos pads are going to do to heat build up and brake fade?

Third, we have a new electrical braking system. I’m anxious to hear if you can feel the brakes fade and mush through your toes or whether, like the electrical steering, we have to rely on other senses?

Forth, it seems the parking brake is really the rear brake pads. Correct? So if they are hot or wet you’d better not set the parking brake.

For # 4, no. There is a second caliper on each rear wheel that is the parking brake. The main calipers and pads are separate.

I wonder about the electric brake booster, too. The amount of force required can be adjusted, but whether this is done in response to real time conditions, or only through the configuration screen is yet to be determined.

[RoketRdr]

Ahhhh brakes. My biggest issue with my C7 Z51 and why i’m waiting for the C8 Z06.

A mid engine has the advantage of rear weight / braking to even out the heating and wear. Yay!

But here is what concerns me about tracking the C8 Z51 brakes, at least at my altitude. Denver.

Notice all the screws you have to remove each time you want to inspect or swap pads? 3 I think from the back side! It might be better than those C7 style pins though!

I’m wondering what the zero Cu no asbestos pads are going to do to heat build up and brake fade?

Third, we have a new electrical braking system. I’m anxious to hear if you can feel the brakes fade and mush through your toes or whether, like the electrical steering, we have to rely on other senses?

Forth, it seems the parking brake is really the rear brake pads. Correct? So if they are hot or wet you’d better not set the parking brake

I asked the question about tactical feedback in another thread but no one knows yet. I think it will be safe to assume that the brakes will have this function. Would be crazy not to and could cause major issues for those who track their cars. There is a second set of smaller pads for the ebrake.

[Dumbell2]

Yellow brakes are really growing on me.

[pfbz]

That's a great picture of the Z51 front caliper...

A little hard to judge scale, but to me it looks massive compared to the base caliper.

[pfbz]

From the Z51 thread, this is my current compilation of Z51 brake upgrades... Accurate?

-------------------


If I understand correctly, the Z51 brake upgrades are several:

• Front brake ducting (though I haven't seen any specific details yet)
• Larger diameter front rotors (321 -> 345mm)
• Larger diameter rear rotors (339 -> 350mm)
• Larger pad size on front calipers. (77 -> 83 cm2)
• Larger pad size on rear calipers (57 -> 62 cm2)
• Upgraded front caliper, monoblock (base calipers 2-piece, Z51 monobloc)
• Upgraded rear caliper? (Brembo press release shows same part number, but I think that is a typo and the part number for the Z51 rear might be perhaps P4.38? Different size pads implies a different caliper)
• Different pads (likely more aggressive, more heat resistant, possibly higher dust)

It's also interesting to note that although the rear rotors are larger than the front (very unusual, even on other mid engine and rear engine cars) the pad area is still much larger up front...

[pfbz]

But here is what concerns me about tracking the C8 Z51 brakes, at least at my altitude. Denver.

Notice all the screws you have to remove each time you want to inspect or swap pads? 3 I think from the back side! It might be better than those C7 style pins though!

I'm also in Denver, and that picture definitely has the best clues on how hard it will be to do a pad swap or inspect...

But my conclusion is a bit different. Looks like easy access to two outboard and two inboard guide pins, torx head, likely low torque as they look like they are just guide pins (I bet a hand ratchet would have them out in less than a minute or two once the wheel is off) and a central retaining pin that might just be held in witha circlip or might have a simple lock bolt on the inboard side (just out of sight in the picture!)

I don't know what it was like to pull pads on previous generation corvettes (you can probably tell from my avatar I'm wandering in from another marque), but the Z51 brakes look like an awesome setup to me, including ease of pad swaps.

I am very interested however to see what exactly the Z51 brake cooling ducts look like. My guess is with good airflow and the right pads, this is going to be awesome track setup, even without Z06 (wishful thinking?)

[C7Redneck]

I'm also in Denver, and that picture definitely has the best clues on how hard it will be to do a pad swap or inspect...

But my conclusion is a bit different. Looks like easy access to two outboard and two inboard guide pins, torx head, likely low torque as they look like they are just guide pins (I bet a hand ratchet would have them out in less than a minute or two once the wheel is off) and a central retaining pin that might just be held in witha circlip or might have a simple lock bolt on the inboard side (just out of sight in the picture!)

I don't know what it was like to pull pads on previous generation corvettes (you can probably tell from my avatar I'm wandering in from another marque), but the Z51 brakes look like an awesome setup to me, including ease of pad swaps.

I am very interested however to see what exactly the Z51 brake cooling ducts look like. My guess is with good airflow and the right pads, this is going to be awesome track setup, even without Z06 (wishful thinking?)

Caymans and 911s run with stock brakes and maybe a little bump up in pads at HPR all the time. So I’m looking forward to that extra braking from the rear in a C8 vs C7.