Schrick 284-deg Camshaft - E28 535i, E34 535i, E24 635CSi (1989), E32 735i (M30 Motronic 2)

This Schrick camshaft for the M30 engine in the 1984-1993 535i, 635CSi, and 735i provides more power and torque in the mid-high RPM ranges, without a drastic loss in low-end torque. Camshaft tuning is all about optimizing air/fuel flow for your specific needs. The 284 cam gives 10.9 of valve lift on the intake and 10.8mm on the exhaust and keeps the valves open longer. No other hardware is required and this cam can be used with stock valve springs and pistons (more gains can be achieved with custom software tuning). Valve clearance should be 0.25mm on the intake and exhaust. The Schrick M30 camshaft is an excellent period-correct modification for your M30 overhaul/update that will breathe new life all the way to red line.

This cam fits M30 engines built 1984 and later and with a bolt-on distributor rotor. Some 1984-1985 engines have a slide-on rotor that requires BMW part #11311288027 to work.

M30 cam specs:
Intake Lobe Duration: 284°
Exhaust Lobe Duration: 280°
Intake Valve Lift: 10.9mm
Exhaust Valve Lift: 10.8mm
Intake Valve Lift @ TDC: 1.9mm
Exhaust Valve Lift @ TDC: 1.7mm
Intake Valve Timing (IO-IC): 32-72
Exhaust Valve Timing (EO-EC): 70-30
Intake Valve Clearance: 0.25mm (0.0098")
Exhaust Valve Clearance: 0.25mm (0.0098")

Manufacturer's Notes:
1. While new springs may not be required, you must ensure the new valve lift does not fully compress the spring. It may be necessary to shim the spring's installed height.
2. Valve timing and valve opening durations are shown minus the ramps.
3. Valve timing is shown in °Crankshaft in relation to TDC.
4. All valve lift figures are shown without deduction of valve lash, i.e. the actual valve lift is the stated valve lift minus the valve lash. Hydraulic lifters have no lash so the valve lift is the actual valve lift.
5. Lumpy or rough idle is caused by valve overlap (intake and exhaust valves open at the same time). Some of the lumpy idle can be adjusted out with a proper valve adjustment using the new specs. Some roughness may remain, depending on the aggressiveness of the cam.

Notice of Emissions Non-Compliance. This product is intended only for vehicles that may never be used, or registered or licensed for use, upon a public highway. This cam is designed to be used with all original, factory-installed equipment, including emissions controls. Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. Installing devices or software that trick, disable, or modify emissions controls and monitors on a pollution-controlled road vehicle is also illegal. This product is sold only for racing, competition, track, hobby, or other off-road use. It is not legal for installation or use in California on any pollution controlled motor vehicle. It is not legal for installation or use on any pollution controlled motor vehicle in any state, province, or jurisdiction governed by, or which has adopted, CARB or EPA regulations.

BMW Fitments:

5 Series
E28 (82-88) > 535i
5 Series
E34 (89-95) > 535i
6 Series
E24 (77-89) > 635CSi
7 Series
E32 (88-94) > 735i
E32 (88-94) > 735iL