850 Rotors, Drilled or Slotted?

Post by **Red-Arrow** » 24 Jul 2011, 00:28

+2 on paint or spraying the. I put mines on without paint only to remove them a week later. I had to buff down the rust and paint the sucker. It still looks mint 1 month later.

Post by **jblackburn** » 24 Jul 2011, 10:24

I didn't have the whirring noise for the first 20,000 miles on mine - it just started recently; mostly on very hot days slowing down from 55+ mph.

The OEM rotors look like crap if you don't paint them after only a few weeks. My Zimmermans came pre-painted (grey) and still look great.

Post by **JDS60R** » 24 Jul 2011, 11:48

Some reading material for those interested

Post by **jimmy57** » 24 Jul 2011, 11:59

If it's your car and the whirring-growling-whizzing noise is "cool" to you and will remain cool when people ride with you then do it.
If it's your wife's car STOP! Get regular rotors.

Post by **JDS60R** » 24 Jul 2011, 13:31

Well said Jimmy

milesursogood · Post by **milesursogood** » 24 Aug 2011, 21:32

Red-Arrow wrote:+2 on paint or spraying the. I put mines on without paint only to remove them a week later. I had to buff down the rust and paint the sucker. It still looks mint 1 month later.

Would any spray paint (i.e., krylon) do that sticks on steel?

Post by **burnout8488** » 24 Aug 2011, 23:13

Neither. Stock blank rotors will stop you faster. And will be less prone to warping, as they can store more heat, which is the purpose of a brake rotor.

Slotted rotors, maybe not as bad, but you won't notice the difference anyway. Drilled or slotted rotors will look cheesy on this car anyway, everyone knows Volvos didn't come with them as OEM to begin with.

Post by **Red-Arrow** » 25 Aug 2011, 05:02

milesursogood wrote: Would any spray paint (i.e., krylon) do that sticks on steel?

It was Kyrlon from Home Depo and its also sold in Walmart. As long as you scrap off the rust with a wire brush it will stick. Honestly I noticed all the new Mercs have the rotors painted as well.

milesursogood · Post by **milesursogood** » 25 Aug 2011, 06:22

Which surfaces do you paint: both inside & outside surfaces that mate w/ the hub & inside of the wheels? or including the inside/outside cylindrical surfaces?

850 Rotors, Drilled or Slotted?

Re: 850 Rotors, Drilled or Slotted?