Fitment? 2016 Gt 350 Rotors on 2014 Gt500.

Hi Gents

I have been looking for 2 piece front rotors for my 2014 Shelby Gt 500 that I track.

They are mostly all over $1,000 a set. However, on ebay, the GT350 (new) front rotors can be purchased for around $600 a set.

Will the GT 350 15" rotors interchange with the Gt 500 rotors, Keeping the OEM 2014 Brembo six piston. Any mods needed, shims, ect......

The GT 350 rotors are cheap for what they are!

thanks
Steve

I don't believe they will work since the offset is different on those cars... BUT TOB would be the guy to ask I think he had a thread detailing the brakes on those cars... can't find it at the moment

Imatk said:

I don't believe they will work since the offset is different on those cars... BUT TOB would be the guy to ask I think he had a thread detailing the brakes on those cars... can't find it at the moment

Click to expand...

Will the new GT350 brakes fit an S197 car?

Yeah it doesn't look like there's a definitive answer on there :/

After reading TOB's thread that Snoopy referenced, I would say definitely not. The first thing that jumps right out at me is how much larger the 350's rotor diameter is than the 500.

EDIT: it just occured to me that TOB wasn't using a '13-'14 500 rotor for his comparison. He was using a smaller pre-'12 500 rotor. Disregard my comments!

Yeah the only thing that would concern me is the offset.

But I think the only way to find out is to try it :/

The GT350 rotor would be located in the same spot on a '07-'12 as a '13/'14. It all comes down to rotor thickness and diameter. Anyone with a new rotor that can measure how thick it is along with the exact diameter?

I would like to know as well, I would imagine if they fit the GT500 they will fit the S197. The 13-14 GT500 setup is being run on S197's already with no modifications besides wheel changes. It might be awkward if someone sees me in the parking lot with a ruler measuring their GT350 rotors

I just bought a set of 13-14 GT500 two piece slotted rotors from Girodisc. They were right at $1K and save 10lbs of rotational weight on each side.

You have to call for 13-14 GT500. http://www.girodisc.com/Ford_c_29.html

To clarify, how thick are '13/'14 rotors?

I thought I remember reading that these were not suited to road racing.....


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PhoenixM3 said:

I thought I remember reading that these were not suited to road racing.....


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Click to expand...

Why wouldn't a GT350 rotor be suited to road racing? It's kind of the purpose of the car right?

AAAaahhhhmmmm, has anyone checked to see that the 350 front rotor is 15.5" in diameter? Our 500 front rotor diameter is 15" so basically based on that the 350 rotor isn't going to work on our cars.

Tony

There's a bit more to it than that Tony. It starts with getting the offset right such that the rotor will be centered in the caliper. But if the rotor thickness dim's are far off forget it. Rotor diameter isn't a big factor when you are using a custom caliper bracket as you can move the caliper further out radially to accommodate a larger diameter rotor.

Hi Tob, from reading the first posting I am under the impression that the OE poster was looking for GT350 rotors that would be a straight replacement for our rotors or with minimum modding. Shimming if it turns out would allow those rotors to work on our cars would be very minor for them to work.

The fact that the 350 rotors are 0.5" larger in diameter means they will not fit within the original mounting position of our 6 piston Brembo caliper.

Yes I'm sure anything can be made to fit if you put enough thought into it and figure out how to get it on but it wouldn't be a simple mod. In simple terms you would need to move the caliper away from the OE mounting location 1/4" or so to fit the 350 rotor inside (assuming the shimming of it is figured out and the rotor is centered properly inside the caliper with pads in place, also being that the rotor is curved the distance you have to move the caliper out is probably a little less than 1/4" that's getting into the math and I'm not getting into the specifics of that).

So moving the OE Brembo caliper out 1/4" or so to fit the 350 rotor means like you said a different caliper bracket, but this bracket would be a very small bracket for that distance you will move the caliper out. I'm guessing the caliper would have to be moved slightly to a different position laterally so you can bolt the bracket to the original position on the spindle then mount the caliper onto the bracket spaced out slightly (for the rotor) and in a different position on the bracket than where the bracket is mounted to the spindle. Another option is to cut the ears off where the caliper mounts originally and mount a bracket lower on the spindle but spaced properly for the caliper to be in the OE position but positioned higher for the 350 caliper.......................or cut the ears off and weld a spacer to put the caliper higher.

Basically you get the idea.................I have no clue if what I mentioned in the previous paragraph is proper or safe to do (we are talking brakes so these types of mods have to be well planned and thought out before doing them), obviously it is not as simple as just moving the caliper higher on the spindle to get the 350 rotor on.

Tony

You never want to have to cut or weld. That leaves a bracket. No big deal there. The potential issues are thickness compatibility and diameter. The diameter issue can be taken care of with the bracket as I mentioned previously.

I really wanted to get this project off the ground, but then I remembered I'm a drag racer
I actually will try and see if it's feasible next winter.
Several companies like FTBR and Baer now make rotor upgrades for us, in addition to the Girodisc posted. Still, for the cost, can't beat a GT350 rotor.
-J

Yeah if this was an option I would have gone this route... just didn't know one way or another.

we just put a set of wheels on james gt350 and i had him do some measuring of the calipers and what not in order to determine how to make the new wheels work. total pita due to the brakes. dont know if this will somewhat help the discussion in this thread but here are some pics he took. check out how much of the wheel studs are exposed on the front rotors verses the rears. this is what give the wheels such a crazy offset and allows the front wheels to have a bigger lip than the rears

Front brakes


Rear brakes