2011.75 E90 ZCP 6MT M3 - The Ultimate Sedan

[burnrbr]

Originally Posted by kiln

No they are not backwards.

The front and rear drill patterns are pointing in the opposite direction from each other. It does look like the rear rotor is on the wrong side of the car. Generally, drilled rotors have the holes inline with a single vane. If that's true with you rear rotors, the vanes are going the opposite direction which dramatically reduces rear rotor cooling.

Beautiful E90!

[kiln]

Originally Posted by burnrbr

The front and rear drill patterns are pointing in the opposite direction from each other. It does look like the rear rotor is on the wrong side of the car. Generally, drilled rotors have the holes inline with a single vane. If that's true with you rear rotors, the vanes are going the opposite direction which dramatically reduces rear rotor cooling.

Beautiful E90!

lol back from the dead.. sorry to say my friend the rotors are not on the wrong side.. are these on backwards too?

[cognoscenti]

Holy resurrected threads Batman!

[burnrbr]

Originally Posted by kiln

lol back from the dead.. sorry to say my friend the rotors are not on the wrong side.. are these on backwards too?

I didn't notice that I piggie-backed on a bump of an old thread. It seems that a lot of people on here don't do their own part installs and sometimes the people the pay don't do the best job. I was just trying to be helpful.

Nonetheless, I didn't say they were on the wrong side. I said they looked that way based on traditional drill patterns in relation to the rotor vane direction.

I did find a closeup pic of a rear Brembo 380 rotor that does have opposite drill to vane direction:

https://cdn.shopify.com/s/files/1/0747/8713/products/GTREAR4POTDRILLED__19184.1408732620.1280.1280_afe2 9a1c-2e2d-487a-b6ab-0e0ea45b2c26.jpg?v=1463031723

I also found this one with a tradition pattern:

http://ind-distribution.com/ind/media/catalog/product/cache/1/image/800x536/9df78eab33525d08d6e5fb8d27136e95/7/3/7302879968_9213d7cb98_b.jpg

[whoever]

I was all excited just for the seat alone ... until I saw the date.

[F48_Driver]

DROOOOL..

[kiln]

Lol. I cant wait to drive her again. I got about 6 more months left in washington DC. Here she is just waiting for me