Cross Drilled Rotors
02-17-2009, 06:16 PM
#21
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My Ride: 2005 530i, Orient Blue, M-tech Front, otherwise stock.
Originally Posted by Trinity Autosport' post='794215' date='Feb 16 2009, 01:20 PM
The rotor's are from Stoptech or Centric. What r1concept does is drill it and slot the blank rotors. Please PM me and I can try to get you a better price 
Can you give me a quote on the discs? I just ordered the axxis pads from you. Thanks!
~Lawrence
02-17-2009, 07:12 PM
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Originally Posted by ktlocklear' post='794897' date='Feb 17 2009, 09:03 AM
Depends on what process they use to drill the holes....if they just straight drill them, they are more likely to crack....if they chamfer the holes it won't weaken the rotor. Still, I would only use ebay rotors for daily driving. If you do any kind of track driving, I would get the real deal
Chamfered holes are less prone to cracking than straight drilled, but they still weaken the rotor a LOT.
Next time you're at a parking complex, take a peak at the rotors of any Porsche 996. They're huge, Brembo made units with cast in holes (the holes are actually cast into the cooling vanes to improve cooling and resist cracking), that are all chamfered... chances are, they'll be cracked.
They still crack so often and so quickly that Porsche actually writes in their literature how much they can spiderweb before they need to be replaced!
IMHO, go slotted if you like the looks. There are a lot of great slotted rotors. Heck, you can go really fancy with the slots if you want the look (and have the money):
Performance wise though, solid face will work just fine. Modern brake pads do not outgas.
02-17-2009, 07:17 PM
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My Ride: 530I Silver gray with gray leather with Premium Package, Logic 7 Premium sound system with Ipod interface, xenon adaptive headlights, Active steering, Power retractable rear sunshade, Comfort seats, Cold weather package and M5 OEM 166 wheels, Sprintbooster. Ceramic Tint all around, Bilstein Sports shocks with Eibach springs, Brake performance Rotors and Axxis ceramic pads.
has anyone use Brake Performance? I was doing some surfing on the net and came up with this
http://brakeperformance.com/site/brake_rot...8&ad=google
http://brakeperformance.com/site/brake_rot...8&ad=google
02-17-2009, 11:20 PM
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Originally Posted by NobleForums' post='795512' date='Feb 18 2009, 12:12 PM
Chamfered holes are less prone to cracking than straight drilled, but they still weaken the rotor a LOT.
Next time you're at a parking complex, take a peak at the rotors of any Porsche 996. They're huge, Brembo made units with cast in holes (the holes are actually cast into the cooling vanes to improve cooling and resist cracking), that are all chamfered... chances are, they'll be cracked.
They still crack so often and so quickly that Porsche actually writes in their literature how much they can spiderweb before they need to be replaced!
IMHO, go slotted if you like the looks. There are a lot of great slotted rotors. Heck, you can go really fancy with the slots if you want the look (and have the money):
Performance wise though, solid face will work just fine. Modern brake pads do not outgas.
Next time you're at a parking complex, take a peak at the rotors of any Porsche 996. They're huge, Brembo made units with cast in holes (the holes are actually cast into the cooling vanes to improve cooling and resist cracking), that are all chamfered... chances are, they'll be cracked.
They still crack so often and so quickly that Porsche actually writes in their literature how much they can spiderweb before they need to be replaced!
IMHO, go slotted if you like the looks. There are a lot of great slotted rotors. Heck, you can go really fancy with the slots if you want the look (and have the money):
Performance wise though, solid face will work just fine. Modern brake pads do not outgas.
02-17-2009, 11:30 PM
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Originally Posted by al_ongvano' post='795515' date='Feb 18 2009, 12:17 PM
has anyone use Brake Performance? I was doing some surfing on the net and came up with this
http://brakeperformance.com/site/brake_rot...8&ad=google
http://brakeperformance.com/site/brake_rot...8&ad=google
I like these and a good price too
02-18-2009, 12:31 AM
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Originally Posted by pinguhk' post='795636' date='Feb 18 2009, 12:20 AM
most of these makes do not make disk for our E60
All it takes is money.
Looking cool is one thing, but realistically, performance wise solid > slotted >>>>>> crossdrilled.
05-24-2009, 02:20 PM
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My Ride: 545i Sport
Model Year: 2004
Engine: N62
OEM Stock M5 Cross-drilled rotors FTW 
Front 374mm X 36mm / 14.7in X 0.94in
Rear 370mm X 24mm / 14.6in X 1.42in
The rotors are of a "floating" two-piece design for reduced risk of cone distortion.
Compound construction (Aluminum inner "hat" and cast-iron outer portion) eliminates any vibration in extreme use.
Front 374mm X 36mm / 14.7in X 0.94in
Rear 370mm X 24mm / 14.6in X 1.42in
The rotors are of a "floating" two-piece design for reduced risk of cone distortion.
Compound construction (Aluminum inner "hat" and cast-iron outer portion) eliminates any vibration in extreme use.
05-24-2009, 02:24 PM
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Originally Posted by Rizbel' post='888601' date='May 24 2009, 06:20 PM
OEM Stock M5 Cross-drilled rotors FTW
Attachment 80188
Attachment 80190
374mm X 36mm 14.7in X 0.94in
Attachment 80189
370mm X 24mm 14.6in X 1.42in
The rotors are of a "floating" two-piece design for reduced risk of cone distortion.
Compound construction (Aluminum inner "hat" and cast-iron outer portion) eliminates any vibration in extreme use.
Attachment 80188
Attachment 80190
374mm X 36mm 14.7in X 0.94in
Attachment 80189
370mm X 24mm 14.6in X 1.42in
The rotors are of a "floating" two-piece design for reduced risk of cone distortion.
Compound construction (Aluminum inner "hat" and cast-iron outer portion) eliminates any vibration in extreme use.
those are niceeeeeeee
how much are the front onces, I think I can install them myself.
05-24-2009, 02:29 PM
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My Ride: 545i Sport
Model Year: 2004
Engine: N62
Originally Posted by Ellicit' post='888603' date='May 24 2009, 03:24 PM
those are niceeeeeeee
how much are the front onces, I think I can install them myself.
how much are the front onces, I think I can install them myself.