|
|
01-13-2013, 05:44 AM | #68 |
Lieutenant
22
Rep 469
Posts |
RB listed the rotors on the front to be 4.5lbs lighter each and the rear rotors to be 6lbs lighter each, compared to stock rotors.
Total Rotor Weight Savings per RB = 21lbs. After moving the RB rotors and Stock rotors around in the shop, the fronts rotors felt a lot lighter than Stock ones. I have hard time believing there is only a 4.5lb difference between them. The reason I say this, is because the rear ones felt closer to the stock weight, but yet had a bigger weight difference. Don't get me wrong, the rears where def lighter than stock. Caliper is listed at 4.5lbs and 6lbs with bracket if I'm not mistaken. The brackets where a lot lighter than stock (like a 1.5lbs). Add pads in at roughly 3lbs granted and you are at ~9lbs for a complete assembly. Total Caliper Assembly Weight Savings = ~10lbs ^In my org post like a d-bag, I forgot to include a pad weight...sorry guys My Bad. |
Appreciate
0
|
01-13-2013, 09:04 AM | #69 |
Lieutenant
22
Rep 469
Posts |
Here are the weights of the 3 kits you guys are probably comparing weights to the most. These weights are listed in the sticky: Weight Savings vs. Cost, on this forum section.
BRAKES Stock assembly (F/R): 37.2/30.7 lbs F caliper assemb: 14.5 lbs with pads and rubber line (Badfish weighed this) F rotor assemb: 22.7 lbs (Badfish weighed this) R caliper assemb: 11.0 lbs with pads and rubber line (Badfish weighed this) R rotor assemb: 19.7 lbs (Badfish weighed this) Brembo 365x34 (F) 345x28 (R) Kit Brembo F caliper assemb: 14.0 lb (weighed by sparkyg) Brembo F rotor assemb: 24.5 lb (weighed by sparkyg) Brembo R caliper assemb: 9.5 lb (weighed by sparkyg) Brembo R rotor assemb: 15.0 lb (weighed by sparkyg) Cost: ~$6100 Weight savings: 9.8 lbs cost/benefit: $622/lbs http://www.m3post.com/forums/showthr...15#post5194815 Stoptech 380x35 (F) 355x32 (R) Kit Stoptech F caliper assemb: 13.11 lbs with pads & bracket (Badfish weighed this) Stoptech F rotor assemb: 21.01 lbs (Badfish weighed this) Stoptech R caliper assemb: 11.15 lbs with pads & bracket (Badfish weighed this) Stoptech R rotor assemb: 19.33 lbs (Badfish weighed this) Cost: $5890 Weight savings: 4.6 lbs cost/benefit: $1280/lbs http://www.**********s.com/product.a...BK_E92_M3_RS10 http://www.m3post.com/forums/showthread.php?t=150944 Performance Friction 371x32 (F) 372x30 (R) Kit (prototype, production will use slightly ligther brackets) Performance Friction F caliper and rotor assemb: 28 lbs with pads & bracket (James C weighed this) Performance Friction R caliper and rotor assemb: 34 lbs (James C weighed this) Cost: $8000 Weight savings: 12 lbs cost/benefit: $666/lbs http://www.m3post.com/forums/showthr...=232463&page=3 http://www.nexternal.com/bimmerworl/Product1060 Hope this helps some. |
Appreciate
0
|
01-18-2013, 07:45 AM | #70 |
Colonel
59
Rep 2,186
Posts |
[/QUOTE]All of the major BBK kits weight about the same as OEM brakes (a little less than std to be fair), which was a big turnoff to me. I DIDN'T BUY THIS KIT BECAUSE I'M CHEAP!!! I bought this kit because I come from a racing history and for my application this I talked to their service department for hours, trust me, they know their Sh*t.
Oh I'm prob letting the cat out of the bag, but someone already asked about. "Why only a 4 pot setup?" Lets just say RB has a surprise for us next season with something bigger and badder (?) for the front end and we can still use the 4 pot calipers on the rear! Sorry RB, but people needed to know that so please DON'T hate me!!!!! Plus now the pressure is on to finish your R&D earlier! [/QUOTE] Misleading information. !! I also contacted racing brake and exchanged info with Alex and Kristin and was informed that they are Not working on a rear caliper upgrade. Link above shows Stoptech 355 kit for 2200 which is less than racing brake kit an offers the rear bbk set so the option is there for the future. Please clarify Last edited by Chriskm3; 01-18-2013 at 08:26 AM.. |
Appreciate
0
|
01-18-2013, 08:33 AM | #71 | |
BimmerPost Supporting Vendor
307
Rep 13,093
Posts
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas
iTrader: (45)
Garage List 2013 Nissan GTR [0.00]
2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00] |
Quote:
|
|
Appreciate
0
|
01-18-2013, 11:12 AM | #72 |
Colonel
59
Rep 2,186
Posts |
|
Appreciate
0
|
01-18-2013, 11:14 AM | #73 |
BimmerPost Supporting Vendor
307
Rep 13,093
Posts
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas
iTrader: (45)
Garage List 2013 Nissan GTR [0.00]
2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00] |
|
Appreciate
0
|
01-18-2013, 12:15 PM | #75 |
BimmerPost Supporting Vendor
307
Rep 13,093
Posts
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas
iTrader: (45)
Garage List 2013 Nissan GTR [0.00]
2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00] |
|
Appreciate
0
|
01-18-2013, 01:33 PM | #77 |
BimmerPost Supporting Vendor
307
Rep 13,093
Posts
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas
iTrader: (45)
Garage List 2013 Nissan GTR [0.00]
2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00] |
|
Appreciate
0
|
01-21-2013, 03:59 PM | #79 |
Lieutenant
22
Rep 469
Posts |
Glad to hear about another kit gettin installed! I already told them to sell me their first kit for the rear. It's going to get made one way or another...meaning I'll just have them custom make it for me worse case.
|
Appreciate
0
|
01-21-2013, 07:50 PM | #80 |
trollololol
148
Rep 878
Posts |
I have RB rotors on my G37. Car stops on a dime... Threw in stoptech pads in the front and project mu's in the rear, and it's amazing. When I got corner balanced, I weighed 3690 w/ me in it (I'm like 170ish), so the cars not that light to begin with either.
__________________
|
Appreciate
0
|
01-24-2013, 11:38 AM | #83 |
BimmerPost Supporting Vendor
307
Rep 13,093
Posts
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas
iTrader: (45)
Garage List 2013 Nissan GTR [0.00]
2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00] |
|
Appreciate
0
|
01-26-2013, 02:14 AM | #87 | |
Captain
72
Rep 959
Posts |
Quote:
Can you post the tire and rim size? Thanks. |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|