Brake Rotors
Thread Starter
Drifting
Joined: Nov 2013
Posts: 1,282
Likes: 10
From: Ottawa
Brake Rotors
Can someone tell me...I purchased a 2008 C6 Coupe...I'm wanting to change rotors and pads...I have currently cross drilled rotors...Does this mean I have the Z51 package on my car...which have bigger rotors than stock...I managed to get a build sheet and it says option F55 (magnetic selective ride control ) which describes having larger cross drilled rotors...Am I safe to assume I do have the bigger rotors...
Thread Starter
Drifting
Joined: Nov 2013
Posts: 1,282
Likes: 10
From: Ottawa
So according to pictures I sent I would have the F55 package...What I actually I have is a vehicule summary sheet from Global Warranty Management...Stating the Option Codes...But my VIN # was used and this is what came up...I'm puzzled because axle ratio are not the same on my sheet it says 2.56 ratio...Is the only way to get actual information is going to National Corvette Museum...
Instructor
Joined: Mar 2010
Posts: 201
Likes: 14
From: Flower Mound Texas
So according to pictures I sent I would have the F55 package...What I actually I have is a vehicule summary sheet from Global Warranty Management...Stating the Option Codes...But my VIN # was used and this is what came up...I'm puzzled because axle ratio are not the same on my sheet it says 2.56 ratio...Is the only way to get actual information is going to National Corvette Museum...
Thread Starter
Drifting
Joined: Nov 2013
Posts: 1,282
Likes: 10
From: Ottawa
BSPC looked in glove box...there is no " Z51 "...I do have the FE2 - F55...on the Global Build sheet it says ( F55 - Magnetic Selective Ride Control - Includes driver selectable tour and sport settings - larger cross-drilled brake rotors...Is it safe to assume they are the same size rotors as the Z51 package...
Pro
Joined: Nov 2002
Posts: 722
Likes: 0
From: ********************* Florida's Space Coast *********************
BSPC looked in glove box...there is no " Z51 "...I do have the FE2 - F55...on the Global Build sheet it says ( F55 - Magnetic Selective Ride Control - Includes driver selectable tour and sport settings - larger cross-drilled brake rotors...Is it safe to assume they are the same size rotors as the Z51 package...
13.4" front equals Z51
13" rear equals Z51
12.9" front equals base
12" rear equals base
It looks like you have the larger rotors by the pics.
Hope this helps.
Supporting Vendor
Joined: Oct 2002
Posts: 50,281
Likes: 518
From: Cleveland OH
St. Jude Donor '11,'13
You have Z51 rotors
Check out the Carbotech 1521 pad. This pad will perform on the street while maintaining low dust and rotor friendliness and last 2-3 times longer than OEM. I will be happy to help you if your interested, you can call me direct at 216-780-8825.
The Carbotech™ 1521™ is our high performance street compound. The 1521™ compound is known for its release and modulation, along with unmatched rotor friendliness. 1521™ is also a very low dusting and low noise compound with an excellent initial bite. This compound's excellent linear torque production provides incredible braking force without ABS intervention. Carbotech™ 1521™ operating range starts out at ambient and goes up to 800°F (426°C+). 1521™ is suitable for ALL street cars, perfect for your tow vehicle or fleet vehicle. Carbotech™ 1521™ is NOT recommended for ANY track use.
F $140 R $121
Check out the Carbotech 1521 pad. This pad will perform on the street while maintaining low dust and rotor friendliness and last 2-3 times longer than OEM. I will be happy to help you if your interested, you can call me direct at 216-780-8825.
The Carbotech™ 1521™ is our high performance street compound. The 1521™ compound is known for its release and modulation, along with unmatched rotor friendliness. 1521™ is also a very low dusting and low noise compound with an excellent initial bite. This compound's excellent linear torque production provides incredible braking force without ABS intervention. Carbotech™ 1521™ operating range starts out at ambient and goes up to 800°F (426°C+). 1521™ is suitable for ALL street cars, perfect for your tow vehicle or fleet vehicle. Carbotech™ 1521™ is NOT recommended for ANY track use.
F $140 R $121
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Race Director
Joined: Sep 2007
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From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
There is no such thing as a Z51 rotor.
Those larger drilled rotors are listed as (code J55). That'll be the code listed on the glovebox label. They are simply a part of the Z51 option and the F55 option in base cars from '07-'13. They were also a stand alone option for base cars. Only 9 base cars were equipped that way in '08.
As far as the axle ratio in '08, the 2.56 (code GM8) is the standard for an A6 and a 2.73 (code GU2) was an option for both the base suspension (code FE1) and the F55 option (code FE2). The 2.73 was part of the Z51 option with an A6.
If you think it may be different than the glovebox code, then look for the ratio sticker on the differential itself.
Those larger drilled rotors are listed as (code J55). That'll be the code listed on the glovebox label. They are simply a part of the Z51 option and the F55 option in base cars from '07-'13. They were also a stand alone option for base cars. Only 9 base cars were equipped that way in '08.
As far as the axle ratio in '08, the 2.56 (code GM8) is the standard for an A6 and a 2.73 (code GU2) was an option for both the base suspension (code FE1) and the F55 option (code FE2). The 2.73 was part of the Z51 option with an A6.
If you think it may be different than the glovebox code, then look for the ratio sticker on the differential itself.
Last edited by HOXXOH; Dec 31, 2013 at 12:40 PM.
