R32 GTR and Z32 30mm Caliper Comparison and Question at the end. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Slidin240Wayz · 12-12-2005, 10:37 PM

Hello everyone,
I just got the R32 GTR calipers in. I have the Z32 Aluminums off the car as well so I can make the comparison. So here goes... Todo es especial (Everything is special).

Red = Z32 30mm Aluminum
Sliver = R32 30mm Aluminum

Top view
The opening is the same on both; 66mm

Piston View
It started at 15mm; app. 36mm on both as well

I didn't take the pic of the Z32 piston, but it measured the same.

Opening for the rotor
Same on both; App. 36mm

Height from bottom to top (not exact inches since the ruler's edge does not start with the first inch). Here is where the difference comes into play.

Z32 at 3 and 15/16 inches

R32 GTR at 4 and 2/16 inches

A difference of 4.76 millimeters. As you can see the measurement is not exact, but I will go by this figure. Since it is just the radius, the 4.76 millimeters difference would allow a rotor that is 9.52mm taller. Once I get one of those cool digital rulers I will get the exact figures.

Weight
They both weight pretty much the the same on my old scale; between 4 and 5 pounds.

I hated the silver that I tried to paint the calipers with, so I went out and bought something a little nicer and this is what I came out with.

So here is the question part.
I have these calipers that can take a bigger rotor. My issue is now, where can I get the rotor for these brakes? After reviewing the ultimate rotor thread I saw that the closest rotors are the ones for the early model Mitsubishi VR4. The later model ones might fit in there as well. Has anyone else done this before? Will I have to worry about the rotor not fitting in the rotor spacing of the caliper? I know I can go with the Z32 rotors, but I want to use these calipers to there fullest potential.

Wishing you all the best,
Carlos Doria

12-12-2005, 10:37 PM	#1
Slidin240Wayz Post Whore! Join Date: Jan 2005 Location: Everywhere Age: 40 Posts: 5,427 Trader Rating: (9) Feedback Score: 9 reviews	R32 GTR and Z32 30mm Caliper Comparison and Question at the end. Hello everyone, I just got the R32 GTR calipers in. I have the Z32 Aluminums off the car as well so I can make the comparison. So here goes... Todo es especial (Everything is special). Red = Z32 30mm Aluminum Sliver = R32 30mm Aluminum Top view The opening is the same on both; 66mm Piston View It started at 15mm; app. 36mm on both as well I didn't take the pic of the Z32 piston, but it measured the same. Opening for the rotor Same on both; App. 36mm Height from bottom to top (not exact inches since the ruler's edge does not start with the first inch). Here is where the difference comes into play. Z32 at 3 and 15/16 inches R32 GTR at 4 and 2/16 inches A difference of 4.76 millimeters. As you can see the measurement is not exact, but I will go by this figure. Since it is just the radius, the 4.76 millimeters difference would allow a rotor that is 9.52mm taller. Once I get one of those cool digital rulers I will get the exact figures. Weight They both weight pretty much the the same on my old scale; between 4 and 5 pounds. I hated the silver that I tried to paint the calipers with, so I went out and bought something a little nicer and this is what I came out with. So here is the question part. I have these calipers that can take a bigger rotor. My issue is now, where can I get the rotor for these brakes? After reviewing the ultimate rotor thread I saw that the closest rotors are the ones for the early model Mitsubishi VR4. The later model ones might fit in there as well. Has anyone else done this before? Will I have to worry about the rotor not fitting in the rotor spacing of the caliper? I know I can go with the Z32 rotors, but I want to use these calipers to there fullest potential. Wishing you all the best, Carlos Doria