Racing Brake 2-Piece rotors
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Racing Brake 2-Piece rotors
Just thought i'd share my install will everyone.
Long story short, i needed new rotors because my OEM rotors had 70k miles, lots of autocross and 8 track days on them. At one of my last track day my pads bit the bullet prematurely (Racing Brake ET800 -- dont buy them if you want to take your car to a track) and scored the front rotors pretty good. They were too low to turn so i just decided to run them for a while to try and smooth them out again but the grooves were too deep. I had about .5mm left of material on the fronts and about 1mm of material left in the rear. I had originally planned to replace just my front rotors but a couple weeks ago i noticed a 1-1.5 inch crack in one of my rear rotors so i just decided to replace all of them. I was planning on buying the one-piece rotors to save money but I waited until the last minute to order them (track day next weekend) and they were completely out of stock. So rather than but some cheap crap i'm just going to end up replacing i just went for it and got the two piece.
I was surprised with how easy rotors are to replace but i ran into a bit of a snag. the hardware that holds the friction surface to the hat was rubbing on the caliper bracket. So i whipped out the dremel and went to town on it. I had to do this (see pic below) on all four rotors but the front were the worst.
So far i've just bedded them in and went for a short test run. They seem solid though. No strange vibrations or noises so i think the install was a success![Big Grin](https://www.rx8club.com/images/smilies/biggrin.gif)
Like i said, track day is next weekend so i'll really get to see how they perform. I'll be running Carbotech XP10/XP8 and have some new stainless lines installed thanks to epikeddie. I'll update as i go.
Crappy iPhone pics -- left my good camera at the g/f's![Frown](https://www.rx8club.com/images/smilies/frown.gif)
Front on left, rear on right
![](http://a.imageshack.us/img6/902/img0441rp.jpg)
Backside of front rotor
![](http://a.imageshack.us/img696/8155/img0443xn.jpg)
Dremel action.
![](http://a.imageshack.us/img525/4188/img0446l.jpg)
Rear semi-installed
![](http://a.imageshack.us/img716/5893/img0449qw.jpg)
Front semi-installed
![](http://a.imageshack.us/img210/3729/img0445p.jpg)
Finished product
Long story short, i needed new rotors because my OEM rotors had 70k miles, lots of autocross and 8 track days on them. At one of my last track day my pads bit the bullet prematurely (Racing Brake ET800 -- dont buy them if you want to take your car to a track) and scored the front rotors pretty good. They were too low to turn so i just decided to run them for a while to try and smooth them out again but the grooves were too deep. I had about .5mm left of material on the fronts and about 1mm of material left in the rear. I had originally planned to replace just my front rotors but a couple weeks ago i noticed a 1-1.5 inch crack in one of my rear rotors so i just decided to replace all of them. I was planning on buying the one-piece rotors to save money but I waited until the last minute to order them (track day next weekend) and they were completely out of stock. So rather than but some cheap crap i'm just going to end up replacing i just went for it and got the two piece.
I was surprised with how easy rotors are to replace but i ran into a bit of a snag. the hardware that holds the friction surface to the hat was rubbing on the caliper bracket. So i whipped out the dremel and went to town on it. I had to do this (see pic below) on all four rotors but the front were the worst.
So far i've just bedded them in and went for a short test run. They seem solid though. No strange vibrations or noises so i think the install was a success
![Big Grin](https://www.rx8club.com/images/smilies/biggrin.gif)
Like i said, track day is next weekend so i'll really get to see how they perform. I'll be running Carbotech XP10/XP8 and have some new stainless lines installed thanks to epikeddie. I'll update as i go.
Crappy iPhone pics -- left my good camera at the g/f's
![Frown](https://www.rx8club.com/images/smilies/frown.gif)
Front on left, rear on right
![](http://a.imageshack.us/img6/902/img0441rp.jpg)
Backside of front rotor
![](http://a.imageshack.us/img696/8155/img0443xn.jpg)
Dremel action.
![](http://a.imageshack.us/img525/4188/img0446l.jpg)
Rear semi-installed
![](http://a.imageshack.us/img716/5893/img0449qw.jpg)
Front semi-installed
![](http://a.imageshack.us/img210/3729/img0445p.jpg)
Finished product
![](http://a.imageshack.us/img24/961/img0450e.jpg)
#3
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yeah kind of. $1128 to my door in 3 days. I wasn't thrilled spending $600 more than i planned but i figured for as much as i'm at the track it would be worth it. From what i've heard these things wear very good and should last me quite a while. Friction plates are only slightly cheaper than One-piece rotors so i guess that's a minor plus. I'll probably break even in about 30 years
![Wink](https://www.rx8club.com/images/smilies/wink.gif)
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Strange and I'm puzzled, they look nothing like my Racing Brake two-piece which fit perfectly?????
Did they change the design or something?
I'm all over the RB site, and I can't find any that look like yours. Can you link the page?
Regardless, I'm sure you will like them. Mine are doing fine and have been on about 4 years now I guess. No real track duty though.
Did they change the design or something?
I'm all over the RB site, and I can't find any that look like yours. Can you link the page?
Regardless, I'm sure you will like them. Mine are doing fine and have been on about 4 years now I guess. No real track duty though.
![](https://www.rx8club.com/attachments/series-i-wheels-tires-brakes-suspension-55/160846d1281836343-racing-brake-2-piece-rotors-rb_rotors_2020-311-2.jpg)
Last edited by Mazurfer; 08-14-2010 at 08:58 PM.
#7
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I ran the same ones except open slotted for about 10k miles, with 1k being track miles. Upgraded to a bbk front and rear, so I will have mine up for sale soon along with some track pads and new ss lines.
I had a minor rub on the caliper bracket when turning. The rotors did the sanding for me after 5 min of doing circles around the block.
I had a minor rub on the caliper bracket when turning. The rotors did the sanding for me after 5 min of doing circles around the block.
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His rotors dont seem to have the RB patented "center mount design" which they display on their webpage. I have a set of front and rear 13" rotors coming next week, ill post pics of what they look like. Not sure Im liking the "new" design as much if they changed it. Looks like they would be heavier and lack in ventilation compared to the old design...
Strange and I'm puzzled, they look nothing like my Racing Brake two-piece which fit perfectly?????
Did they change the design or something?
I'm all over the RB site, and I can't find any that look like yours. Can you link the page?
Regardless, I'm sure you will like them. Mine are doing fine and have been on about 4 years now I guess. No real track duty though.
![](https://www.rx8club.com/attachments/series-i-wheels-tires-brakes-suspension-55/160846d1281836343-racing-brake-2-piece-rotors-rb_rotors_2020-311-2.jpg)
Did they change the design or something?
I'm all over the RB site, and I can't find any that look like yours. Can you link the page?
Regardless, I'm sure you will like them. Mine are doing fine and have been on about 4 years now I guess. No real track duty though.
![](https://www.rx8club.com/attachments/series-i-wheels-tires-brakes-suspension-55/160846d1281836343-racing-brake-2-piece-rotors-rb_rotors_2020-311-2.jpg)
#9
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I did realize they looked different than the pics on their website. I just assumed they had a different design for each application. But if Mazsufer's look different than mine i dont know what's going on. Maybe they changed their design around a bit.
Yes the end links are EVO-R. They're decent but my rears are completely rusted. Must have been salt getting kicked up on them from over the winter
Yes the end links are EVO-R. They're decent but my rears are completely rusted. Must have been salt getting kicked up on them from over the winter
![Frown](https://www.rx8club.com/images/smilies/frown.gif)
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Those arent 1 piece rotors...they are indeed two piece. But they arent ventilated like the 2 piece rotors are supposed to be....if mine show up next week looking the same Im not gonna be happy lol
#15
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Guess I didn't notice the change. My latest set don't have the windowed hats. Can't say that I can tell performance wise. Rocked the house at a time trials event last weekend and the RB brakes were flawless. ![Dunno](https://www.rx8club.com/images/smilies/dunno.gif)
I've used OE endlinks without issue. My car is corner balanced too. Never had any issue with OE links. If it ain't broke don't throw money at it .....
.
![Dunno](https://www.rx8club.com/images/smilies/dunno.gif)
I've used OE endlinks without issue. My car is corner balanced too. Never had any issue with OE links. If it ain't broke don't throw money at it .....
.
Last edited by TeamRX8; 08-15-2010 at 07:04 AM.
#16
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![Rant](https://www.rx8club.com/images/smilies/rant.gif)
Not only, these have so little air vent spacing aound the ring... like 3/8in not the 3/4in holes of the earlier ones. Time for a little discussion with RB Monday
![Anger](https://www.rx8club.com/images/smilies/anger.gif)
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I also searched the site for about 1/2 an hour trying to locate what they sent him. Not sure it's a big deal, but seems odd.
I
'm off to find an actual picture of mine on the car. I'll also check the date and see how long mine have been on. I was afraid I'd take some **** for pointing out that they are different, but it seems like I have peaked others curiosity as well.
![Uhh](https://www.rx8club.com/images/smilies/uhh.gif)
No pictures really worth putting up. There are just rotors, so I guess I didn't take a shot other than having the wheels on and showing the painted calipers........can't see the open hats all that well in my shots, but they are there! I bought them in March of 07.
Last edited by Mazurfer; 08-15-2010 at 07:50 AM.
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His rotors dont seem to have the RB patented "center mount design" which they display on their webpage. I have a set of front and rear 13" rotors coming next week, ill post pics of what they look like. Not sure Im liking the "new" design as much if they changed it. Looks like they would be heavier and lack in ventilation compared to the old design...
![Frown](https://www.rx8club.com/images/smilies/frown.gif)
Oh and rears are ~12", but fronts are ~13".
Funny, just found this picture where they are talking about interference issues on some cars and it does show the open hat design either.
![](http://www.racingbrake.com/v/images/rx8_rear_two-piece_rotor_sm.jpg)
I do not remember back in 07 any talk of any interference issue and I had none.
Last edited by Mazurfer; 08-15-2010 at 07:36 AM.
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![Rant](https://www.rx8club.com/images/smilies/rant.gif)
Not only, these have so little air vent spacing aound the ring... like 3/8in not the 3/4in holes of the earlier ones. Time for a little discussion with RB Monday
![Anger](https://www.rx8club.com/images/smilies/anger.gif)
![](http://www.racingbrake.com/v/images/patent_7568560.jpg)
But the mounting points on this rotor are exactly the same as the mounting points on my rotors
![Dunno](https://www.rx8club.com/images/smilies/dunno.gif)
![](https://www.rx8club.com/attachments/series-i-wheels-tires-brakes-suspension-55/160846d1281836343-racing-brake-2-piece-rotors-rb_rotors_2020-311-2.jpg)
If you look at the back of my rotor the tabs bend in and mount what looks like the center.
![](http://a.imageshack.us/img696/8155/img0443xn.jpg)
#20
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Except i just read that center mount was to allow for more air from the inboard and outboard sides.. not just the fact that it's mounted in the center of the rotor.. Oh well i tried.
edit: Actually, you can kind of tell in the RB pic that the tabs alternate side to side. So never mind again...
edit: Actually, you can kind of tell in the RB pic that the tabs alternate side to side. So never mind again...
Last edited by JantzenRX-8; 08-15-2010 at 07:38 AM.
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Jantzen,
Again.......sorry didn't mean to thread jack, but I thought it was strange and I noticed it right away that they weren't open.
I wonder what they will tell you?
Let us know please.
Again.......sorry didn't mean to thread jack, but I thought it was strange and I noticed it right away that they weren't open.
I wonder what they will tell you?
Let us know please.
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No its fine. I'm glad you guys brought it up. I'm curious to what they will say as well. It's very odd they would just abandon one of their patented technologies. The only thing i can imagine i a strength issue. But i kind of doubt it and i can't find any info on people having problems with them.
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That's what I thought.....strength? Maybe they have data that shows strength outweighs the cooling effect of having them open?
Maybe they got some feedback that showed cracked tabs?
Regardless.............they should update the pics/diagrams though........IMO.
They have a loosely worded disclaimer on some of the diagrams/pics, but not on them all and it certainly isn't clear is it.
Let's see what Brian says.
Maybe they got some feedback that showed cracked tabs?
Regardless.............they should update the pics/diagrams though........IMO.
They have a loosely worded disclaimer on some of the diagrams/pics, but not on them all and it certainly isn't clear is it.
Let's see what Brian says.
Last edited by Mazurfer; 08-15-2010 at 07:58 AM.
#24
Momentum Keeps Me Going
Jantzen I too discovered the bracket scraping clearance issue and I had to use a bench grinder to take away the excess material on the OEM calipers brackets....and it wasn't just a bit here and there but a good slice of each side of each one. I don't see how RB could have test fitted them sucessfully without this being done. Kind of strange and a bit of PITA work to take so much off the caliper brackets.
First set I got years ago I had just the front ones. Same issue but much less of a problem. Rather than grinding, I just put a washer on the bracket bolts to hold them a bit inwards. That worked, but this time there was much more interference and I wanted to do it 'right' lol.
First set I got years ago I had just the front ones. Same issue but much less of a problem. Rather than grinding, I just put a washer on the bracket bolts to hold them a bit inwards. That worked, but this time there was much more interference and I wanted to do it 'right' lol.
Last edited by Spin9k; 08-15-2010 at 08:22 AM.