CAT Cams Camshaft Kits for BMW M42 Engines – Precision Performance for Street, Track, and Rally
The BMW M42 engine, known for powering E30 and E36 models, is a favorite among enthusiasts for its low costs and tuning potential. CAT Cams offers high-performance camshaft kits designed to maximize your M42 engine’s capabilities—whether you're building a street car, track car, rally machine, or full race car.
With a wide range of camshaft grinds tailored for different driving styles, CAT Cams provides options for smooth upgrades or aggressive profiles. These camshafts enhance throttle response, improve airflow, and deliver power gains throughout the entire RPM range. Whether you need a mild setup for daily driving or a high-performance grind for motorsport, CAT Cams ensures optimal engine performance and reliability.
Designed for demanding applications, CAT Cams camshaft kits for the M42 offer superior engineering with proven results on and off the track. Backed by years of motorsport experience, these camshafts ensure your M42 engine runs at peak performance under any conditions.
Key Features:
- Designed for BMW M42 engines in E30 and E36 models
- Suitable for street, rally, track, and race applications
- Multiple camshaft profiles for various performance needs
- Enhanced throttle response and broader power band
- Engineered for long-term reliability and optimal performance
Choosing the Right Cam for your Application:
OEM
| Duration @ 0.1mm | Valve Lift | Application |
| 255° Intake / 255° Exhaust | 9.70mm Intake / 9.70mm Exhaust | OEM |
| Duration @ 0.1mm | Valve Lift | Application |
| 257° Intake / 257° Exhaust | 9.90mm Intake / 9.90mm Exhaust | Sport |
| 269° Intake / 269° Exhaust | 10.00mm Intake / 10.00mm Exhaust | Sport |
| 268° Intake / 267° Exhaust | 11.50mm Intake / 10.95mm Exhaust | Hot Street |
| 279° Intake / 274° Exhaust | 11.50mm Intake / 10.95mm Exhaust | Hot Street |
| 282° Intake / 274° Exhaust | 11.50mm Intake / 11.00mm Exhaust | Hot Street |
| 290° Intake / 282° Exhaust | 12.00mm Intake / 11.50mm Exhaust | Rally / Race |
| 298° Intake / 290° Exhaust | 12.50mm Intake / 12.00mm Exhaust | Rally / Race |
| 307° Intake / 298° Exhaust | 13.00mm Intake / 12.50mm Exhaust | Full Race |
| 260° Intake / 242° Exhaust | 11.00mm Intake / 10.00mm Exhaust | Turbo Conversion |
For optimal performance and reliability, 5150 strongly advises replacing your valve springs with your camshafts, even with mild camshaft upgrades. This essential step acts as a preventive measure against potential piston-to-valve contact during instances of over-revving or mis-shifts. By taking this proactive approach, we prioritize your engine's well-being and ensure that you experience the highest levels of performance without compromising on reliability.
BMW M42 Applications:
3 Series
1989-1991 E30 318i / 318is
1992-1996 E36 318i / 318is