GT500 Brake Swapping The R

[Epiphany]

I agree. Huge potential if somebody can figure out a way to get the cost down without sacrificing CC performance.

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[50 Deep]

How are you guys seasoning your new pads and rotors? I want to be sure the flavor on mine come out right

2020 GT500 & 2017 GT350R brakes and pads side by side.

29lb rotor vs a 42lb rotor.

 

[MNGT350]

Imagine what kind of handling and acceleration the R model would have had with CCB and carbon fiber wheels !!!

I'd be interested in updating to CCB on my R if they made it available at a reasonable price point.

I just assembled these front rotors with my son this afternoon, will be on the car with the signature SV502 wheels this spring. 50 pounds off the front rotating mass, 20 off the rear. Adding lightness. (a grand less than the racing brake version.)

http://www.tonybracing.com/tbrperformance/

I'm counting on the car feeling a bit different...... I figure the 8-9 grand is what I would have paid for an R, at least that's how I rationalized the money side of things!

 

[Alain]

I just assembled these front rotors with my son this afternoon, will be on the car with the signature SV502 wheels this spring. 50 pounds off the front rotating mass, 20 off the rear. Adding lightness. (a grand less than the racing brake version.)

http://www.tonybracing.com/tbrperformance/

I'm counting on the car feeling a bit different...... I figure the 8-9 grand is what I would have paid for an R, at least that's how I rationalized the money side of things!

Make sure you report back on performance when you get a chance man.

is that ~4K price for all four corners or just the fronts ?

 

[MNGT350]

Just fronts. Racing Brake has rears as well, I think they cost about the same as the fronts.

It looks like it’s only about 7 pounds per rotor weight savings however. So I’m not feeling the need to further drain the bank account.

 

[JAJ]

Maybe Racing Brake will come out with something like that.

Funny you should mention that. I contacted RB (who made my GT350 kit) and checked to see what they have. Turns out they have 420x40 front and 370x30 rear rotor kits for the Audi RS7.

Front assembled rotors weigh 19 pounds, rear are 11.2 pounds. All four rotors come in just over 60 pounds, compared to the GT500 set somewhere around 110 to 120 pounds (fronts are 42# each and I'm guessing the rear rotors are 15 to 20 pounds each).

So, if anyone is waiting on a GT500 (@Tomster?) and wants to lighten up the unsprung mass, a call to RB might prompt them to make GT500 hats for the rotors they already have. 60 pounds off should make some kind of a difference...

 

[bauern]

Funny you should mention that. I contacted RB (who made my GT350 kit) and checked to see what they have. Turns out they have 420x40 front and 370x30 rear rotor kits for the Audi RS7.

Front assembled rotors weigh 19 pounds, rear are 11.2 pounds. All four rotors come in just over 60 pounds, compared to the GT500 set somewhere around 110 to 120 pounds (fronts are 42# each and I'm guessing the rear rotors are 15 to 20 pounds each).

So, if anyone is waiting on a GT500 (@Tomster?) and wants to lighten up the unsprung mass, a call to RB might prompt them to make GT500 hats for the rotors they already have. 60 pounds off should make some kind of a difference...

They already show fronts for the 2020 GT500. On sale $6600.

 

[JAJ]

They already show fronts for the 2020 GT500. On sale $6600.

Even better!

 

[50 Deep]

 

[DCShelby]

Looks nice. Here in DC those tires would get destroyed on the pock marked roads we have here. I actually have a memory of where the deep ones are located now, to avoid them. The problems are new ones that pop up! RB sells really good stuff. I used to run Carbotech XP8 in my Alcon brakes on my S4. In the city they were sort of dangerous cause they never got hot enough to really work. I suppose the CCR setup would be even dicier in city and daily driving, but super at Summit Point Main turn one entrance.

 

[JAJ]

...RB sells really good stuff. I used to run Carbotech XP8 in my Alcon brakes on my S4. In the city they were sort of dangerous cause they never got hot enough to really work. I suppose the CCR setup would be even dicier in city and daily driving...

Actually, having run the CCB's since 2017, the braking in city driving is excellent. I have been using Pagid RSL29's and they're great when cold, so it's very civilized in the city and great on the track too. I'm looking at switching up to Pagid RSC1's this year when the 29's wear out.

 

[Casualtenbeers]

That setup looks really nice. Thanks for sharing the info. I’m curious, how do the 2020 GT500 pads compare to the OEM GT350 pads in terms of thickness? The GT350 OEM pad material appears to be shared with the 2020 GT500. I would guess that material wouldn’t last as long on the heavier car.

 

[YBLEHSGT350R]

I might have missed it but will the GT500 rear calipers fit on GT350R - I have carbon ceramics on 4 corners and feel I need a little more rear clamping pressure on 1/2 mile shootouts

 

[JAJ]

I might have missed it but will the GT500 rear calipers fit on GT350R - I have carbon ceramics on 4 corners and feel I need a little more rear clamping pressure on 1/2 mile shootouts

I have the CCM's on my GT350 as well, and I went a track season with the factory rear calipers and concluded that I wanted more thermal capacity at the rear, so I installed these:

The RB4M3 takes an "F40" pad shape, which is much bigger in every dimension than the OEM Brembo pads.

Here's the in-service picture from a track day in August this year:

 

[YBLEHSGT350R]

That’s awesome - I just emailed for availability - I have a line on some GT500 ones - just need pads - they are 3.5” hole to hole and I just haven’t measured mine.

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