Hi guys,

Does anyone know the dimensions of the stock front and rear rotors on our cars? I'm working with Wilwood to put together a floating rotor package for the Evo that would work with the stock calipers. Wilwood has a nice variety of rotor surfaces available (look here for pics) and they'd be easy to swap back and forth once we have proper hats.

Specifically, I'd need to know:

rotor width (thickness)
rotor diameter
hat diameter
hat depth

Can anyone here help me out or point me in the right direction? Thanks in advance!

Emre

 

they dont have a casting with the proper "d" dimension....... already checked

 

front
320mm diameter
32mm thick (29.8mm min thickness)
43.5mm total height

rear
300mm diameter
22mm thick (20mm min thickness)
58mm total height

 

What do you mean by "d" dimension? The hat depth?

Emre

 

Thanks for the info

 

Kayaalp,

Wilwood may already have something....

http://www.socalevo.net/forums/viewt...ighlight=rotor

 

What does the stock rotor weigh? or tryign to get to the more important questino if these are 13 lbs for the front (?). How much weight can you shave off?

 

Stock rotor weights.

Front 20.9lbs.
Rear 14.7lbs.

Link for other misc. weights.
http://www.socalevo.net/forums/viewtopic.php?t=379

 

I don’t know where you got those figures, but the service manual I got states the following General Specifications for the service brakes:

Front brakes
Type: 4-opposed piston, ventilated disc
Disc effective dia. thickness mm (in): 263 - 32 (10.4 - 1.3)
Wheel cylinder I.D. mm (in): 40.0 (1.58) - 2, 46.0 (1.81) - 2
Pad thickness mm (in): 10.0 (0.39)
Clearance adjustment: Automatic

Rear brakes
Type: 2-opposed piston, ventilated disc
Disc effective dia. thickness mm (in): 252 - 22 (9.9 - 0.9)
Wheel cylinder I.D. mm (in): 40.0 (1.58) - 2
Pad thickness mm (in): 9.0 (0.35)
Clearance adjustment: Automatic