Morning!
I am wondering if the brake rotor for an e31 US spec and Euro spec are interchangeable?
I just made a purchase of e31 4pot calipers, and need a rotor set to go along with. I see the US spec rotor has a different part number than the Euro spec counterpart, however the dimensions are the same at 324mmx30mm.
Can anyone confirm that the US spec rotor will match the offset of the euro spec Brembo caliper before I make a purchase?
Thanks for your time.
CURRENT:
Racecar: '81 e21 320i Group2. GT28 @ 25psi, MS2, e28 M5 suspension/brakes underneath, forged, cammed, 400bhp, 2190lbs, etc, etc...
Daily: '95 e34 540/6. DUDMD tuned, vogtland/koni, Schnitzers, other minor touches.
Project: '94 525iT. S50 swapped, supercharger in the works, manual swapped, Airlift supsension, Mpars, Brembo's, clean machine.
New daily: e60 530i sport package. Stock.
I remember looking into this and finding out that the later rotors are a bit lighter. My rotors were Centric 121.34035 and they worked fine.
CURRENT:
Racecar: '81 e21 320i Group2. GT28 @ 25psi, MS2, e28 M5 suspension/brakes underneath, forged, cammed, 400bhp, 2190lbs, etc, etc...
Daily: '95 e34 540/6. DUDMD tuned, vogtland/koni, Schnitzers, other minor touches.
Project: '94 525iT. S50 swapped, supercharger in the works, manual swapped, Airlift supsension, Mpars, Brembo's, clean machine.
New daily: e60 530i sport package. Stock.
Feel free to PM, but where did you find E31 Brembos and roughly how much did you pay? I'm asking for BBK research, nothing more.
If they're lighter it may be a higher carbon metal composition. Assuming same dimensions
Last edited by Billyj; 07-21-2017 at 10:42 PM.
E46 m3 disks fitted the e36 m3 when I put the 840i brembos on. Perhaps look day at the Dba calaligue to confirm the offset.
BMW’s
90 E34 M5
84 E24 M635csi standalone ecu with coil on plug
94 E34 540i/6 SC 5-17psi Flex fuel/standalone ecu
97 Z3 2.8
97 E36 M3 euro SC still u/c
OTHERS
11 Audi S5 APR stg2
19 Volkswagen Amarok V6
CURRENT:
Racecar: '81 e21 320i Group2. GT28 @ 25psi, MS2, e28 M5 suspension/brakes underneath, forged, cammed, 400bhp, 2190lbs, etc, etc...
Daily: '95 e34 540/6. DUDMD tuned, vogtland/koni, Schnitzers, other minor touches.
Project: '94 525iT. S50 swapped, supercharger in the works, manual swapped, Airlift supsension, Mpars, Brembo's, clean machine.
New daily: e60 530i sport package. Stock.
That was a good deal. I paid something like $750 for remanufactured ones shipped from the UK, including a core charge.
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