$42 Rotors on RockAuto?

dreamspeed · 04-06-2018, 09:16 PM

We don't drive F1 cars, there are millions of cars on the road with generic auto store rotors and they are not just smashing into each other.

For regular street driving and emergency stopping these should perform similar to OEM. It's when you brake hard for extended periods that the more "expensive" stuff really shines.

SDPLV · 08-20-2018, 05:34 PM

I'm liking it.

IanMan · 11-19-2018, 05:17 PM

Quote:

Originally Posted by SDPLV

I'm liking it.

Why is your wear pattern off from the norm?

WingZeroX5 · 11-19-2018, 06:41 PM

Quote:

Originally Posted by SDPLV

I'm liking it.

Quote:

Originally Posted by IanMan

Why is your wear pattern off from the norm?

+1, something is wrong there

Z K · 11-19-2018, 06:56 PM

Quote:

Originally Posted by dparm

Centric is the company that owns StopTech. They make a lot of caliper rebuild kits and other brake components. I would put them a notch above the off-brand generic parts and on-par with OEM.

Centric has different lines of brake rotors. They have their normal line which is quite good. They have Stoptech drilled/slotted for enthusiasts. Then they have C-TEK which is a pretty terrible "budget" line.

SDPLV · 11-19-2018, 07:50 PM

Quote:

Originally Posted by IanMan

Quote:

Originally Posted by SDPLV

I'm liking it.

Why is your wear pattern off from the norm?

Don't know. Maybe the picture or maybe there is bad wear. Can't tell when driving out here. Roads where I now live on the East Coast are such sh*t it hardly matters.

IanMan · 11-19-2018, 10:34 PM

Quote:

Originally Posted by SDPLV

Don't know. Maybe the picture or maybe there is bad wear. Can't tell when driving out here. Roads where I now live on the East Coast are such sh*t it hardly matters.

But it does matter.... your pad is only covering a partial area of the rotor...

roastbeef · 11-19-2018, 10:36 PM

Quote:

Originally Posted by SDPLV

I'm liking it.

well, its 100% wrong and probably dangerous. at first, i was thinking the rotors were a little smaller and what i was seeing were the dust shields. looks like your pads are actually only making 3/4" of contact. you can clearly see the machining on the rotor face where the pads aren't making contact.

this is incredibly dangerous, and i would advise not to drive your car.

however, if you are going to drive your car anyways- go find an open road where you have nothing in front of you (for safety), get to about 50 mph and stomp on the brakes. i kinda want to see if the pads will even make contact with the rest of the rotor. post some close-up pics.

StripclubDJ · 11-19-2018, 11:17 PM

My rotor rings are 1500 with hardware and people over here getting away with 40$ rotors

I guess I'm doing it wrong

IanMan · 11-20-2018, 12:52 AM

Quote:

Originally Posted by StripclubDJ

My rotor rings are 1500 with hardware and people over here getting away with 40$ rotors

I guess I'm doing it wrong

I mean, if you want us to call you Paul Walker two weeks from now, be my guess. OP and friend aren't driving their cars like they're supposed to be driven. No fucking way I'd run these rotors in the Malibu Canyons.

roastbeef · 11-20-2018, 01:57 AM

He can drop a ton of weight and just go with this bicycle setup. has about the same pad contact.

GeorgeA · 11-20-2018, 02:29 AM

Still boggles my mind how someone who drives an m3 settles for shit 43$ rotors.. this isn’t a 328...

BMW spent soooo much time on developing and perfecting a car like this and you guys run $43 rotors?! Somethings you just shouldn’t cheap out on, or sell the car and get a 328

SDPLV · 11-20-2018, 06:35 AM

Quote:

Originally Posted by roastbeef

Quote:

Originally Posted by SDPLV

I'm liking it.

well, its 100% wrong and probably dangerous. at first, i was thinking the rotors were a little smaller and what i was seeing were the dust shields. looks like your pads are actually only making 3/4" of contact. you can clearly see the machining on the rotor face where the pads aren't making contact.

this is incredibly dangerous, and i would advise not to drive your car.

however, if you are going to drive your car anyways- go find an open road where you have nothing in front of you (for safety), get to about 50 mph and stomp on the brakes. i kinda want to see if the pads will even make contact with the rest of the rotor. post some close-up pics.

Oh that. Yeah, I need to re-investigate when I actually took that picture. Before or after I had bed the brake pads. That might help...

SDPLV · 11-20-2018, 06:36 AM

Quote:

Originally Posted by IanMan

Quote:

Originally Posted by SDPLV

Don't know. Maybe the picture or maybe there is bad wear. Can't tell when driving out here. Roads where I now live on the East Coast are such sh*t it hardly matters.

But it does matter.... your pad is only covering a partial area of the rotor...

I was confused, thought you were talking about tire wear for some reason. Which I now realize makes no sense since this is a thread on brake rotors.

pbonsalb · 11-20-2018, 06:38 AM

People change parts on cars all the time with cheaper or more expensive aftermarket parts. You don’t need 2 piece rotors — there are plenty of 1 piece rotors in this size. They weigh a little more but 99% of these cars are street cars and few drivers would notice. While I agree expensive cars typically cost more to maintain, I don’t feel the need to have a bmw stamp on every part that goes on my car or to pay a premium price for every part.

drrust · 11-20-2018, 11:04 AM

Quote:

Originally Posted by SDPLV

I'm liking it.

The stock rotors are not fully covered by the stock pads. Rotors will develop a lip as they wear. Also some pads have a 'taper' where the contact area increases with wear. The wear pattern shown would likely develop using a two piece rotor.

Scharbag · 11-20-2018, 12:00 PM

Quote:

Originally Posted by SDPLV

I'm liking it.

Looking at the cross-hatching, it looks like you are only using the outside edge of the rotor. Could be wrong, but you should check the pads to ensure they are seated properly and are not tapered strangely.

Bemo · 11-20-2018, 03:43 PM

Quote:

Originally Posted by GeorgeA

Still boggles my mind how someone who drives an m3 settles for shit 43$ rotors.. this isn't a 328...

BMW spent soooo much time on developing and perfecting a car like this and you guys run $43 rotors?! Somethings you just shouldn't cheap out on, or sell the car and get a 328

Oh so I'm allowed shitty parts on my 328? Good to know but I'll pass!
All my cars get OEM only.

WingZeroX5 · 11-20-2018, 04:21 PM

Quote:

Originally Posted by IanMan

I mean, if you want us to call you Paul Walker two weeks from now, be my guess. OP and friend aren't driving their cars like they're supposed to be driven. No fucking way I'd run these rotors in the Malibu Canyons.

I ran mine at the White Mountains with these

ItsGary · 11-20-2018, 05:31 PM

Quote:

Originally Posted by Bemo

Oh so I'm allowed shitty parts on my 328? Good to know but I'll pass!
All my cars get OEM only.

mine get oem equivalent cause im not about that bmw logo markup on items that are the exact same without the logo

SDPLV · 11-20-2018, 07:07 PM

Quote:

Originally Posted by GeorgeA

Still boggles my mind how someone who drives an m3 settles for shit 43$ rotors.. this isn't a 328...

BMW spent soooo much time on developing and perfecting a car like this and you guys run $43 rotors?! Somethings you just shouldn't cheap out on, or sell the car and get a 328

My car is worth under $20k now and has over 103k miles as a daily commuter. You be aight bruh.

Why would I sell the car tho? Just cause you're offended?

I'm currently looking for a R8 V10 gated manual. Will put $40 rotors on that too if I can find em.

People on here jokin on poor Paul Walker in except that car was probably all stock from Porsche or even higher priced after market products. So much for that OEM theory.

SDPLV · 11-20-2018, 07:16 PM

Quote:

Originally Posted by IanMan

Quote:

Originally Posted by SDPLV

I'm liking it.

Why is your wear pattern off from the norm?

Quote:

Originally Posted by WingZeroX5

Quote:

Originally Posted by SDPLV

I'm liking it.

Quote:

Originally Posted by IanMan

Why is your wear pattern off from the norm?

+1, something is wrong there

Quote:

Originally Posted by IanMan

Quote:

Originally Posted by SDPLV

Don't know. Maybe the picture or maybe there is bad wear. Can't tell when driving out here. Roads where I now live on the East Coast are such sh*t it hardly matters.

But it does matter.... your pad is only covering a partial area of the rotor...

Quote:

Originally Posted by roastbeef

Quote:

Originally Posted by SDPLV

I'm liking it.

well, its 100% wrong and probably dangerous. at first, i was thinking the rotors were a little smaller and what i was seeing were the dust shields. looks like your pads are actually only making 3/4" of contact. you can clearly see the machining on the rotor face where the pads aren't making contact.

this is incredibly dangerous, and i would advise not to drive your car.

however, if you are going to drive your car anyways- go find an open road where you have nothing in front of you (for safety), get to about 50 mph and stomp on the brakes. i kinda want to see if the pads will even make contact with the rest of the rotor. post some close-up pics.

Quote:

Originally Posted by GeorgeA

Still boggles my mind how someone who drives an m3 settles for shit 43$ rotors.. this isn't a 328...

BMW spent soooo much time on developing and perfecting a car like this and you guys run $43 rotors?! Somethings you just shouldn't cheap out on, or sell the car and get a 328

Quote:

Originally Posted by drrust

Quote:

Originally Posted by SDPLV

I'm liking it.

The stock rotors are not fully covered by the stock pads. Rotors will develop a lip as they wear. Also some pads have a 'taper' where the contact area increases with wear. The wear pattern shown would likely develop using a two piece rotor.

Quote:

Originally Posted by Scharbag

Quote:

Originally Posted by SDPLV

I'm liking it.

Looking at the cross-hatching, it looks like you are only using the outside edge of the rotor. Could be wrong, but you should check the pads to ensure they are seated properly and are not tapered strangely.

Pic was taken early on, after initial install.

Those aren't OEM pads. Wear is all even after bedding. Checked all my rotors today.

Car is fine, so am I. So is my wallet. Would buy again without hesitation.

Will get "BEATERM3" license plate to justify $40 rotors.

04-06-2018, 09:16 PM	#111
dreamspeed Lieutenant Colonel 260 Rep 1,616 Posts Drives: 6MT Join Date: Jul 2012 Location: Los Angeles iTrader: (0)	We don't drive F1 cars, there are millions of cars on the road with generic auto store rotors and they are not just smashing into each other. For regular street driving and emergency stopping these should perform similar to OEM. It's when you brake hard for extended periods that the more "expensive" stuff really shines. __________________
	Appreciate 1 SDPLV493.00 Quote

08-20-2018, 05:34 PM	#112
SDPLV Major 493 Rep 1,003 Posts Drives: 2008 E90 M3 DCT Silverstone II Join Date: Aug 2016 Location: Las Vegas iTrader: (1) Garage List 2008 BMW M3 [0.00]	Installed... I'm liking it. Attached Images __________________ Current: 08 E90 M3 DCT SSII w/ BE RB Swap, H8 Lux 180s, MS Drop-in AF, CF spoiler, CF diffuser, OEM CF leather trim, CF DCT paddles, Custom DCT flatbottom wheel, MirrorTap 9500ix, RockAuto rotors, Hawk HPS pads, AMS ECU 93 Oct Map Tune, GTS DCT update, Slambo custom undertray
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11-19-2018, 11:17 PM	#119
StripclubDJ Lieutenant Colonel 4097 Rep 1,605 Posts Drives: e92 m3 Join Date: May 2016 Location: calis iTrader: (2)	My rotor rings are 1500 with hardware and people over here getting away with 40$ rotors I guess I'm doing it wrong
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11-20-2018, 01:57 AM	#121
roastbeef Lieutenant General 11582 Rep 12,722 Posts Drives: E92 M3 Join Date: Nov 2010 Location: Orange County, CA iTrader: (4)	He can drop a ton of weight and just go with this bicycle setup. has about the same pad contact. Attached Images __________________ Instagram; @roastbeefmike
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11-20-2018, 02:29 AM	#122
GeorgeA Major 757 Rep 1,408 Posts Drives: E92 M3 Join Date: Jan 2016 Location: Los Angeles iTrader: (3)	Still boggles my mind how someone who drives an m3 settles for shit 43$ rotors.. this isn’t a 328... BMW spent soooo much time on developing and perfecting a car like this and you guys run $43 rotors?! Somethings you just shouldn’t cheap out on, or sell the car and get a 328
	Appreciate 3 deansbimmer3748.50 IanMan384.00 SYT_Shadow11468.50 Quote

11-20-2018, 06:38 AM	#125
pbonsalb Lieutenant General 5212 Rep 10,594 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	People change parts on cars all the time with cheaper or more expensive aftermarket parts. You don’t need 2 piece rotors — there are plenty of 1 piece rotors in this size. They weigh a little more but 99% of these cars are street cars and few drivers would notice. While I agree expensive cars typically cost more to maintain, I don’t feel the need to have a bmw stamp on every part that goes on my car or to pay a premium price for every part.
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