GT350 Rotors and Pads

[VoodooBoss]

That will depend on a few things. Price, price and price.

Seriously price is a consideration but in addition the weight. Also if the stock rotors start cracking at the holes prematurely that would drive me to an alternative solution with slots. TBD.

Regarding the rust wouldn't the Girodisc rotors rust too?

 

[8250RPM]

I'll buy the Griodisc just for the slotted reason. As long as they aren't heavier. I'm sure the Griodisc are zinc coated.

 

[cloud9]

I just ordered spare front rotors to keep in the trailer and noticed they aren't marked LH or RH, but they do have a different part #. When I ordered them on the fordparts.com site, they didn't have the -E or -F in the part #, just the description. They are marked on the box but I had to research the correct part #s. I added the part #s to the first post.

•Two (2) Rear Rotors - FR3Z-2C026-C
•One (1) Front Left Rotor - FR3Z-1125-F
•One (1) Front Right Rotor - FR3Z-1125-E

Visually the internal vanes run with the curve flowing out from the hub toward the back of the car.

 

[VoodooBoss]

Can you please add their weights to the Weights and Measures thread?

 

[cloud9]

Can you please add their weights to the Weights and Measures thread?

Will do it's an even 30 lbs. These things look ridiculous!! It's the size of a normal passenger car wheel.

 

[8250RPM]

Do you think aftermarket rotors will weigh less then the 30#


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[cloud9]

Do you think aftermarket rotors will weigh less then the 30#


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I don't see how without compromising durability. It already has an aluminum hat and vaned and drilled rings. These look like serious rotors. The way the vanes look they should flow tons of air and be efficient at cooling.

 

[8250RPM]

I agree but girodisc seems to think they can make a rotor for our cars and weigh a few pounds less. I don't see how.

Their 380mm X 34mm weighs 24.1 pounds

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[cloud9]

I agree but girodisc seems to think they can make a rotor for our cars and weigh a few pounds less. I don't see how.


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I also don't want to spend $600-$800 per set versus $390 for these just to save a couple pounds. I have a feeling I'll be going through a few sets a year. ;D

 

[8250RPM]

I agree


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[VoodooBoss]

I agree but girodisc seems to think they can make a rotor for our cars and weigh a few pounds less. I don't see how.

Their 380mm X 34mm weighs 24.1 pounds

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Ours are 395x35 so they'll weigh more. I think they can make them lighter but by how much? They would need to be about 5lbs lighter each to even consider that added expense. Now if the stock drilled rotors crack at the holes that's another matter.

 

[8250RPM]

If you look at girodisc Facebook page it's funny how many people ditch the carbon ceramic rotors on other cars for iron rotors.


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[cloud9]

If you look at girodisc Facebook page it's funny how many people ditch the carbon ceramic rotors on other cars for iron rotors.


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The carbon ceramic rotors and carbon fiber wheels are cool and play well in the magazine tests, but from a practical standpoint are generally unaffordable to actually use on the track as amateurs.

 

[VoodooBoss]

If you look at girodisc Facebook page it's funny how many people ditch the carbon ceramic rotors on other cars for iron rotors.


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This.

Thank you Ford for not taking us down that detour. ;D

 

[VoodooBoss]

Ours are 395x35 so they'll weigh more. I think they can make them lighter but by how much? They would need to be about 5lbs lighter each to even consider that added expense. Now if the stock drilled rotors crack at the holes that's another matter.

My rotors have 4,300 miles on them and about 3,300 of those are with Pagid RS29 race pads. That includes five track days. There is the typical heat check cracks but nothing serious so far. They are holding up well from my perspective.