School me on e36m3 rotors and calipers on e30m3 struts.

[golde30]

so is this the equivalent of running 12mm spacers behind the wheel on the front? wouldnt that make up for clearance issues of wheel to caliper?

[Todd Black 88]

Not sure I am reading your question correctly, but the 12.8 mm spacer goes behind the rotor, on the hub, to space the high offset rotor outwards to keep from fouling the strut and knuckle, and to get the rotor centered in the calipers location mounted on the e30 m3 strut.

It doesn't change anything as to the caliper contacting the rear of flat spoked wheels.

[markseven]

FWIW E38 Style 5s will hit the rattle clip on stock E30 M3 calipers, so I presume they would need a spacer to clear E36 cali's.

[BlackbirdM3]

Just out of curiosity, what's the point? Both are single piston calipers. Brake pads are going to be about the same price, what are you gaining? If I were to do a brake upgrade, I'd make sure I had at least a two if not 4 or more piston caliper on there that was lighter than stock.

Will

[Mr. Horsepower]

so is this the equivalent of running 12mm spacers behind the wheel on the front? wouldnt that make up for clearance issues of wheel to caliper?

That is correct. Every wheel you are using need to substract 12.8mm on the offset. I have been using this setup for 2011, 2012, 2013 and 2014 season without any problems at all. I have tracked the car pretty hard.

Now I'm going another route with custom ackermannarms with zero degree angle, that makes me able to mount the E36M3 disc direct onto the hub and make some custom brackets for a 4 pot caliper. Stop Tech or so.

In order to get BBS RC090 on I had to grind a bit on the calipers as seen here:



With RC090 (Style5) on the car. Offset is then ET7.2 at front. As seen here with Yokohama Advan A048-R 215/45-17 tires.