question about the brake upgrade reguarding the rotors

[coupe240sxguy]

Wanting to do the do the "300zx brake upgrade" on my S13. Wanting to put the stock z32 wheel with the Z32 hub, on with the Mitsubushi 3000GT VR4 rotor (yes the rotor will fit on the hub, same bolt pattern and thickness (30mm), the only difference was just that the rotor surface was 15mm further outboard and it was a whopping 12.375 inches in diameter. ) Has any one ever heard of the rotor being used off of a 3000gt vr4? This is just for a rotor upgrade. I do understand that I would have to get the outboard part of the rotor machined.

[coupe240sxguy]

i will sit on my couch and eat popcorn

[safin]

i would also like to know

[94_240sx]

I think I've heard about it. You can use Mustang Cobra rotors too. Anyway, 350z track edition rotors(12.75 inches in diameter) are more common that those 2. Whatever it is, it's just a matter of finding brackets, and it's easier to find brackets for 350z rotors than others.

[Fla240sx]

sorry this idea just sounds dumb

15mm is a lot when talking about rotors

ok so its 30mm wide and your going to machine off half of that? there goes your balance, heat dissapation, and t hats not even diving into the concept that shaving 15mm off the surface will probably take away the entire rotor area that the pad touches...........

if the rotor is moved out 15mm, then the caliper bracket must also move

just get regular z32 rotors........

[94_240sx]

I realized that I misunderstood after I read your post. Yeah, you should just use z32 rotors. That's better.

[nismofly]

why would you get the vr4 rotors if you were just going to make them smaller? that wouldnt even be possible because the material youd be taking away would be the swept area of the rotor

makes no sense whatsoever, just get z32 rotors

[coupe240sxguy]

Sorry for the long delay on the post been out of town. It sounds like most everyone is under the impression that I am going to shave it down like "resurfacing" the rotor. That is notwhat I am going to shave. It's the OUTSIDE or the OUTBOARD of the rotor. When I shave off the edge of the rotor the caliper will then fit and bolt up. If I dont shave the rotor, then the rotor will be to big and will not bolt up.

[94_240sx]

why would you get the vr4 rotors if you were just going to make them smaller?

^^That's what he meant. You are going to shave the OUTSIDE or the OUTBOARD of the rotor. Right? We understood what you were trying to do. Get z32 rotors or get brackets, so you can use vr4 rotors without modification.

[nismofly]

If I dont shave the rotor, then the rotor will be to big and will not bolt up.

exactly, thats what i already said...so why not get the rotor that fits correctly to begin with?

[94_240sx]

exactly, thats what i already said...so why not get the rotor that fits correctly to begin with?

He wants to use it cuz it's thicker? How thick is vr4 rotor? It's gotta be thicker than z32 or 350z track rotor, but how much?350z track rotor is 324mm and cobra rotor is 330mm BTW.And this is very famous picture of vr4 rotor.

http://www.team3s.com/FAQbrokenrotor.htm

[positron1]

[nismofly]

that picture proves something i mentioned before though

see how theres like a gap between the hub part of the hat and the swept area? yeah if you decrease the swept area youll actually have the pad over that gap instead of on the rotor, so youll be squeezing air

thats a great way to decrease brake performance, since youre only going to be using half the pad