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View Poll Results: Which is best?
OEM Volvo 2 22.22%
Brembo 3 33.33%
Bosch Quietcast 1 11.11%
Zimmerman 1 11.11%
Other 2 22.22%
Voters: 9. You may not vote on this poll

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Old 11-30-2019, 10:28 PM   #1
daniels740
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Default Brake rotor opinions

I'm just about to order some brake pads and rotors for my 740 and I want to know what option is best.

For the pads, I'm getting the Bosch quietcast pads for all 4 wheels.

For the rotors, I'm split between the Bosch, Brembo, or OEM Volvo rotors. What are your opinions?

The problem with the Bosch is that only the rear rotors are available, so is it better to just go with Brembo to have the same brand rotor on all wheels?

Also, does anyone know if there are any promo codes I could use for an order for about $300 on Ipd?

Thanks for all the help.

Last edited by daniels740; 12-01-2019 at 12:35 AM..
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Old 11-30-2019, 10:31 PM   #2
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They are all pretty much the same, and mixing rotor brands doesn't matter.
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Old 12-01-2019, 12:30 AM   #3
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It's a hunk of steel, none of the brands listed have special features, or advertise special alloy mixes, carbon impregnation, slots, drilled, etc, they are exactly all the same.

The only reason I'm repeating myself here is because a poll is silly and not needed. Just buy some dam rotors and move on my man.
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Old 12-01-2019, 12:44 AM   #4
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Quote:
Originally Posted by 2turbotoys View Post
It's a hunk of steel, none of the brands listed have special features, or advertise special alloy mixes, carbon impregnation, slots, drilled, etc, they are exactly all the same.

The only reason I'm repeating myself here is because a poll is silly and not needed. Just buy some dam rotors and move on my man.
There absolutely IS a difference, ranging from coatings used for rust prevention to rotor balancing. I am not familiar with the brands so that's why I asked, and I certainly don't agree with the argument that they don't have ANY differences.
As for the poll, maybe it was a bit extra, but I don't see the problem in learning from others opinions.
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Old 12-01-2019, 01:07 AM   #5
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Sorry, no there isn't a difference. They are all well known brands who do things properly. None of them have painted hats, they are all balanced properly, you are over thinking this. I get learning from other opinions, I do it also, just saying this isn't brain surgery, and I gave you a well informed opinion from many years of experience. I appreciate the attention to details, it is just not that necessary on a brake rotor.

If you want a real recommendation, ceramic/carbon pads from Akebono or Powerstop, slotted rotors. Paint the hats with a high temp paint if you plan on keeping them on the car for a million years. I replace rotors with the pads every time so it is kinda not an issue for me.
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Old 12-01-2019, 01:45 AM   #6
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Lousy poll din't even include "white box" rotors...
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Old 12-01-2019, 01:47 AM   #7
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Quote:
Originally Posted by 2turbotoys View Post
It's a hunk of steel, none of the brands listed have special features, or advertise special alloy mixes, carbon impregnation, slots, drilled, etc, they are exactly all the same.

The only reason I'm repeating myself here is because a poll is silly and not needed. Just buy some dam rotors and move on my man.
Uh, no..It is not steel...It is cast iron....like the block...
The rest you are 100% right on..
Excprt for a lotta people they actually want to feel good about their purchases and believe old saws like "you get what you pay for".....so they actually want to believe the cast iron rotor very likely made in China (they were only about 1600 years ahead of the West in cast iron casting once they had invented it) but in this box is somehow substantially better than the very likely exact same rotor very likely made in China in that box>

Shirley you can see the difference in the boxes, can't you?....


truth is nobody really KNOWS where anything comes from any more and they didn't before, either.. so believing one thing is better is important..

Maybe we could suggest he prays?

The various zinc platings is just cosmetic BS and in the plating business there is a big warning where I used to take stuff for zinc plating there was a sign "Not responsible for nitrogen embrittlement on cast iron"... That sign made me ask...they splained..
So I'd never touch a zinc plated rotor...
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Old 12-01-2019, 01:48 AM   #8
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Quote:
Originally Posted by 2turbotoys View Post
Sorry, no there isn't a difference. They are all well known brands who do things properly. None of them have painted hats, they are all balanced properly, you are over thinking this. I get learning from other opinions, I do it also, just saying this isn't brain surgery, and I gave you a well informed opinion from many years of experience. I appreciate the attention to details, it is just not that necessary on a brake rotor.

If you want a real recommendation, ceramic/carbon pads from Akebono or Powerstop, slotted rotors. Paint the hats with a high temp paint if you plan on keeping them on the car for a million years. I replace rotors with the pads every time so it is kinda not an issue for me.

Alright, I'll take your word for it.. I guess I have been over-thinking all this quite a bit. Thanks for all the help.
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Old 12-01-2019, 03:45 AM   #9
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Yes, you have. Buy the cheapest versions and use the savings for something else.
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Old 12-01-2019, 04:25 PM   #10
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I've been buying the blue box Volvo rotors lately. Except the boxes aren't blue any more. Just ordinary cardboard color. Compared to the Brembo brand I used to buy they come packaged well, shrink wrapped and easier to clean off the anti corrosion coating, add to my collection of new caliper bolts with thread lock compound applied -- for about the same price.

On the other hand, we don't race or use ceramic pads, and I'm easy to please.
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Old 12-01-2019, 04:34 PM   #11
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I put Beck/Arnley $10 vented 0832246 rotors from Rockauto on my Lemons race car and have used them for four races. Not a lot of mileage, but a lot of use and heat. They have not warped or cracked. I saw someone at one of the races try drilled rotors, they cracked the first day.

Pads are a different story, I spend a lot of $$ on my race pads.
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Old 12-01-2019, 04:35 PM   #12
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Quote:
Originally Posted by cleanflametrap View Post
I've been buying the blue box Volvo rotors lately. Except the boxes aren't blue any more. Just ordinary cardboard color. Compared to the Brembo brand I used to buy they come packaged well, shrink wrapped and easier to clean off the anti corrosion coating, add to my collection of new caliper bolts with thread lock compound applied -- for about the same price.

On the other hand, we don't race or use ceramic pads, and I'm easy to please.
I think I'll order the Brembo rotors, because as Roy suggested, they are the cheaper option and there's no significant difference. The Volvo rotors are ~$12 more per rotor from iPd, which is where I'm getting them.
That being said, anyone know any iPd promo codes that would apply to an order of around $300?
Thanks for all the help guys.
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Old 12-01-2019, 04:57 PM   #13
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Thinking the model year of your 740 would have been handy.
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Old 12-01-2019, 05:04 PM   #14
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Quote:
Originally Posted by lummert View Post
Thinking the model year of your 740 would have been handy.
1989 Turbocharged. ABS on all 4 wheels. It also has the 11.25 inch rotors in the front with Girling calipers that use #D508 Pads. Sorry I forgot to include all this.
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Old 12-01-2019, 08:25 PM   #15
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Now would have been a good time to upgrade to jumbo rotors and single piston calipers (and mounting brackets) from 92+ 740/940/92-94 960.
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Old 12-02-2019, 06:24 PM   #16
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Installed Zimmermann fronts and rears on mine over a year ago. No problems. The box said Made in Germany, packaging was very nice, they have some coating on the hub section that prevents rusting. Looks to me like a quality product.
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