Friday, May 18, 2012

Big Brake conversion E28/E24


This conversion set up is to go on the 535i E28 and 635csi  E24 cars (Not for E30 or E36 use)

Front Brakes:

E32 (all US models, 735, 740, 750)
The calipers are single piston. To be used with 302mm diameter x 28mm thick rotors.
Caliper part #: 34 11 1 160 363/364 (199.50 Eur)
Rotor Part #: 34 11 1 159 896 (superceded by 34 11 6 756 090) (72.30 Eur)
Carrier Part #: 34 11 1 160 365 (91.80 Eur)
Note: E36 US M3 pads can fit this application.

E28 M5/ E24 M6 (US and Euro)
The calipers are 4 piston. To be used with 300mm diameter x 30mm thick rotors. E32 302mm diameter x 28mm thick rotors can be substituted.
Caliper Part #: 34 11 2 225 002/003 (432.60 Eur)
Rotor Part #: 34 11 2 225 007 (102.60 Eur)
Substitute Rotor Part #: 34 11 1 159 896 (superceded by 34 11 6 756 090) (72.30 Eur)
No carrier.

E34 (all US models, 525i/535i/530i)
The calipers are single piston. To be used with 302mm diameter x 22mm ventilated thick rotor.
Caliper Part #: 34 11 1 160 367/368 (194.00 Eur)
Rotor Part #: 34 11 1 160 936 (75.50 Eur)
Carrier Part #: 34 11 1 160 366 (91.80 Eur)

E34 (540i, US model)
The calipers are single piston, floating. To be used with 302mm diameter x 28mm thick rotors.
Caliper part #: 34 11 1 160 363/364 (199.50 Eur)
Rotor Part #: 34 11 1 159 896 (superceded by 34 11 6 756 090) (72.30 Eur)
Carrier Part #: 34 11 1 160 365 (91.80 Eur)

E34 M5 3.6 (US model), E34 540i Sport (US model)
The calipers are single piston. To be used with 315mm diameter x 28mm thick rotors.
Caliper Part #: 34 11 2 226 407/408 (also 34 11 2 226 873/874) ( 281.00 Eur)
Rotors Part #: 34 11 2 226 385 (100.50 Eur)
Carrier Part #: 34 11 2 226 875 (136.50 Eur)

E34 M5 Euro Nurburgring brakes
The calipers are 4 piston calipers, to be used with 345mm diameter x 32mm thick directionally ventilated rotors.
Caliper Part #: 34 11 2 227 115/116 (555 Eur)
Rotor Part #: 34 11 2 227 735/736 (198 Eur)
No carrier.

E31 (US model, up to 8/93)
The calipers are single piston. To be used with 324mm x 30mm thick rotors
Caliper Part #: 34 11 1 160 325/326 (215.00 Eur)
Rotor Part #: 34 11 1 159 895 (77.50 Eur)
Carrier Part #: 34 11 1 160 327 (94.50 Eur)

E31 (US model, after 8/93)
The calipers are four piston, known as “Brembo” brakes. To be used with 324mm x 30mm thick rotors.
Caliper Part #: 34 11 1 161 177/178 (289.00 Eur)
Rotors Part #: 34 11 1 161 086 (superceded by 34 11 6 756 087) (100.50 Eur)
850CSi Rotor Part #: 34 11 6 757 746 (75.50 Eur) (same used on E32 750i Euro, and E38 and E39 V8 engine cars).
No carrier.


Rear Brakes:

E34 non-vented (US model 535i/530i/525i)
The calipers are single piston. To be used with 300mm x 10mm thick solid rotors
Caliper Part #: 34 21 1 157 557/558 (superceded by 34 21 1 160 381/382) (135.50 Eur)
Rotors Part #: 34 21 1 162 305 (superceded by 34 21 1 160 305) (49.00 Eur)
Carrier Part #: 34 21 1 160 383 (83.10 Eur)

E34 vented (US model 540i/M5/540i Sport)
The calipers are single piston. To be used with 300mm diameter x 20mm thick vented rotors
Caliper Part #: 34 21 1 159 657/658 (superceded by 34 21 1 160 399/400) (155.00 Eur)
Rotor Part #: 34 21 1 165 265 (70.80 Eur)
Carrier Part #: 34 21 1 160 384 (83.10 Eur)

E32 non-vented (US model 735)
The calipers are single piston. To be used with 300mm diameter x 12mm thick solid rotors. E34 solid rotors are required. Carrier information as to which is acceptable is unavailable at this time.
Caliper Part #: 34 21 1 160 353/354 (152.00 Eur)
Rotor Part #: 34 21 1 165 257 (60.50 Eur)
Carrier Part #: 34 21 1 160 355 (83.10 Eur)

E32 vented (US model 740i/750iL)
The calipers are single piston. To be used with 300mm x 20mm thick vented rotors (E34 vented rotors must be used!)
Caliper Part #: 34 21 1 160 399/400 (155.00 Eur)
Rotor Part #: 34 21 1 165 265 (540i) (70.80 Eur)
Rotors that came on E32 Part #: 34 21 1 162 967 (will not fit E28/E24 application. Reference use only.) (69.80 Eur)
Carrier Part #: 34 21 1 160 384 (83.10 Eur)

E34 Nurburgring (M5 Euro)
To be sued with 328mm diameter x 20mm thick vented rotors.
Caliper Part #: 34 11 2 227 873/874 (191.00 Eur)
Rotor Part #: 34 11 2 227 844 (93.40 Eur)
Carrier Part #: 34 11 2 227 875 (127.00 Eur)

Here are an example list of stages of braking upgrades and the minimum wheel size you can safely fit. The amount of benefit you receive from the upgrade is mainly dependant on the pads and rotors you use.

Stage 1: E32/540i fronts
Minimum wheel size: 15” wheels
Stage 2: E28 M5/ E24 M6 fronts
Minimum wheel size: TRX, only *some* 15” wheels, 16” wheels
Stage 3: E32/540i fronts, E34 solid rears
Minimum wheel size: 15” wheels front and rear
Stage 4: E28 M5/ E24 M6 fronts, E34 solid rears
Minimum wheel size: TRX, only *some* 15”, 16” wheels front; 15” wheels rear
Stage 5: E32/540i fronts, E34/E32 vented rears
Minimum wheel size: 15” wheels front and rear
Stage 6: E28 M5/ E24 M6 fronts, E34/E32 vented rears
Minimum wheel size: TRX, only *some* 15”, 16” wheels front; 15” wheels rear
Stage 7: E34 US M5/US 540i Sport front and rear
Minimum wheel size: some 16” wheels front; 15” wheels rear
Stage 8: E31 front, E34/E32 vented rears
Minimum wheel size: some 16” wheels front; 15” wheels rear
Stage 9: E34 Euro, E31 850CSi Euro (Nurburgring brakes)
Minimum wheel size: 17” wheels front; 16” wheels rear

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