Best option for cross drilled rotors
#12
#13
Contributors
Joined: Aug 2008
Posts: 9,986
Likes: 1
From: Zoo York
My Ride: Alpine White 2006 530Xi (SLD)
The way I understand it, the drilled holes provide cooling to the rotors in heavy operating situations (like track).
Slots produce more friction with the pads, and even though they do wear the pads out more, they provide more stopping power.
My suggestion: do not get the drilled ones unless you use your brakes to the point of fading. I do, occasionally, so I got drilled and slotted (have never felt a fade since - not yet, anyway). As for slotted - its pretty much a no-brainer IMHO, I say get slotted no matter what.
Hope this clears up some confusion.
Slots produce more friction with the pads, and even though they do wear the pads out more, they provide more stopping power.
My suggestion: do not get the drilled ones unless you use your brakes to the point of fading. I do, occasionally, so I got drilled and slotted (have never felt a fade since - not yet, anyway). As for slotted - its pretty much a no-brainer IMHO, I say get slotted no matter what.
Hope this clears up some confusion.
#14
Contributors
Joined: Jul 2010
Posts: 1,727
Likes: 2
From: socal
My Ride: 545I and a half dozen other rides
I don't think holes do anything other than lightening but the amount of holes you see in these rotors do not do a thing. Besides these replacement rotors have cast iron hats compared to the riveted aluminum hats that the oe have. Your performance will be from the brake pads not the rotors.
I bought mine, because they were sporty looking. I have just holes in one car and slots with holes in the other. I got the holes only, thinking that you don't see slots with holes in real race cars. The one with just holes makes more noise while the one with both make less. You won't hear it with the windows up but windows down and a wall next to you, you'd be like...
I bought mine, because they were sporty looking. I have just holes in one car and slots with holes in the other. I got the holes only, thinking that you don't see slots with holes in real race cars. The one with just holes makes more noise while the one with both make less. You won't hear it with the windows up but windows down and a wall next to you, you'd be like...
#15
Members
Joined: Nov 2009
Posts: 192
Likes: 0
From: New Jersey
My Ride: 2004 BMW 545i 6mt, Titanium Silver, Sport Package, Winter Package
I purchased the bav auto cross drilled rotors. $560 for front and rear. and Hawk ceramic front pads and Hawk HPS rear. No and i emphasize NO, Squeaks and no Dust, Yes I said NO dust. I have gone 2 months without washing my wheels and still no dust!
I would not recommend the EBC yellowstuff. I had them and hated them squeals and lots of dust.
I would not recommend the EBC yellowstuff. I had them and hated them squeals and lots of dust.
#16
Members
Joined: Nov 2009
Posts: 192
Likes: 0
From: New Jersey
My Ride: 2004 BMW 545i 6mt, Titanium Silver, Sport Package, Winter Package
Side note: If you want better performance go with the Hawk HPS for the front pads not the ceramic. The HPS produces more dust than the ceramic but they perform better. Its your preference. I prefer no dust so I went with ceramic.
#17
I have the best prices on rotors and hawk hps pads. Yes the rotors come either slotted & drilled, slotted only, drilled only, or blank.
r1concept eline drilled, slotted, both
front - $175/pair
rear - $165/pair
hawk hps pads
front - $100
rear - $75
michael
acute performance
r1concept eline drilled, slotted, both
front - $175/pair
rear - $165/pair
hawk hps pads
front - $100
rear - $75
michael
acute performance
#19
Members
Joined: Nov 2007
Posts: 178
Likes: 0
From: Houston, TX
My Ride: 07 550i Titanium Silver, Black Dakota Leather, Steptronic, Sport, Premium, Nav, Sat. Radio, Logic 7, Comfort Access, Rear Sunshade.
I don't think holes do anything other than lightening but the amount of holes you see in these rotors do not do a thing. Besides these replacement rotors have cast iron hats compared to the riveted aluminum hats that the oe have. Your performance will be from the brake pads not the rotors.
I bought mine, because they were sporty looking. I have just holes in one car and slots with holes in the other. I got the holes only, thinking that you don't see slots with holes in real race cars. The one with just holes makes more noise while the one with both make less. You won't hear it with the windows up but windows down and a wall next to you, you'd be like...
I bought mine, because they were sporty looking. I have just holes in one car and slots with holes in the other. I got the holes only, thinking that you don't see slots with holes in real race cars. The one with just holes makes more noise while the one with both make less. You won't hear it with the windows up but windows down and a wall next to you, you'd be like...