Racing Brake E82 2 Piece Rotors Pre-order

[ShocknAwe]

Originally Posted by ThatOneKid

I'm interested. Before committing, just wanted to make sure I'm understanding this right. To make them work we need evo 10 pads in the rear? But can we use upgraded pads all around like hawk ht 10s?

Thanks for any help. These look like an awesome way to save unsprung weight!

Ever decide if you want in? Let me know if you have other questions.

[ShocknAwe]

Bump

[JCip91]

Oh man if this was in the summer time...

[Traf]

Not wanting to ruin your group buy or anything but, wouldn't going M3 CSL rotors be way cheaper ?

[ShocknAwe]

Originally Posted by Traf

Not wanting to ruin your group buy or anything but, wouldn't going M3 CSL rotors be way cheaper ?

Point is to retain the 135i calipers. Are the OE M3 CSL rotors plug and play both front and rear?

[Traf]

Originally Posted by ShocknAwe

Point is to retain the 135i calipers. Are the OE M3 CSL rotors plug and play both front and rear?

Does retain de 135i caliper for front, and you need an adapter which cost around 150$.
As for rear, no idea

[ShocknAwe]

Originally Posted by Traf

Does retain de 135i caliper for front, and you need an adapter which cost around 150$.
As for rear, no idea

The rear is the problem tbh. I haven't seen another option for true 2pc rears other than big $$$ for a matched front/rear bbk which is way overkill for me and most of us honestly.

Do you know what the rotor weighs and how much the adapter weighs?

[Traf]

Both adapter and rotor are lighter, the adapter being way lighter because aluminum.
And the rotor is 345x28mm instead of oem 338x28mm, all pretty well documented on here.

[ShocknAwe]

Update on RB 2pc rear rotor construction. Also cleaned up and edited the original post. Lets get these last 2 so we can get the kits.

Recd an inquiry as forwarded below for your info.

Due to rotor casting consideration, the rear has a change on disc size @335x28, we re-check OE set up and determined the actual pad contact is only 334mm (vs. OE rotor's 338), so 335mm should fit well and can eliminate rusty lip on rotor edge like OE.

Please refer to the dwg below in case you want to update your post to keep the thread going.
https://cimg1.ibsrv.net/gimg/rennlis...e0fcbd0a4c.png



Thanks for your continuing supports.

[ShocknAwe]

Bump.

[ShocknAwe]

Bump. Keeping this alive.

[ajsmithvmi]

I hope you get 5 cause I want the option in the future but can't swing this right now.

[ShocknAwe]

Originally Posted by ajsmithvmi

I hope you get 5 cause I want the option in the future but can't swing this right now.

To be completely honest it's going to get to a point where I'll have to do a brake job and choose something. Hopefully the RB option is available at that point, but at this rate, who knows.

[ShocknAwe]

Got an email from RB tonight. Looks like we may be a go and front rotors in stock or coming in stock. Rear rotors out of stock but short term, read: orderable. Going to confirm with them.

[ENixon]

W00t! w00t!

[OkieSnuffBox]

You may want to research other options. I know in the E30 world RB's were generally panned for failing quickly on track and then RB turning around and saying "just because we sell our parts as track capable doesn't mean you should actually use them, sorry."

[ShocknAwe]

Originally Posted by OkieSnuffBox

You may want to research other options. I know in the E30 world RB's were generally panned for failing quickly on track and then RB turning around and saying "just because we sell our parts as track capable doesn't mean you should actually use them, sorry."

Got any links to substantiate that? Genuinely want to read the accounts of that if so.

[OkieSnuffBox]

Originally Posted by ShocknAwe

Got any links to substantiate that? Genuinely want to read the accounts of that if so.

This was years ago, you could probably find it searching around on R3VLimited.com.

I believe they were VW Corrado rotors (larger and still vented than stock E30 front brakes) for the guys that were doing the RX-7 based BBKs.

Perhaps their quality is up since then, no idea, I understand problems happen it was more their response to the issue.

[houtan]

It seems getting clarification that the rotors do not have a disclaimer saying they are not for racing would be the best thing. That way if there is an issue, you don't need to be concerned about a voided warranty.

I can tell you my friend has both front and rears and had zero issues stopping from 155+ mph at the last half mile event we went to, and it was 95+ degrees. He also consistently brake boosts and just overall beats the shit out of his brakes and has not had one issue. His OEM rotors, on multiple occasions with the same treatment, either warped or started showing hairline cracks. He would also get a soft pedal.

[swagon]

US only, I guess? Or horrendous shipping rates to EU. 😞

[ShocknAwe]

Originally Posted by swagon

US only, I guess? Or horrendous shipping rates to EU. ��

Send them an email!

[OkieSnuffBox]

Originally Posted by houtan

It seems getting clarification that the rotors do not have a disclaimer saying they are not for racing would be the best thing. That way if there is an issue, you don't need to be concerned about a voided warranty.

I can tell you my friend has both front and rears and had zero issues stopping from 155+ mph at the last half mile event we went to, and it was 95+ degrees. He also consistently brake boosts and just overall beats the shit out of his brakes and has not had one issue. His OEM rotors, on multiple occasions with the same treatment, either warped or started showing hairline cracks. He would also get a soft pedal.

One high mph stop or brake boosting, etc, don't put anywhere near the abuse or sustained heat that 20-30 minute open lapping/HPDE/TT sessions put on brakes.