Cat Cams Turbo 264/242 Camshafts for Mazda MX-5 1.8 VVT BPZ3 for turbo conversion. These Camshafts are for use in 1840cc BPz3 engines with upgraded shim under bucket cam followers. Will not work with standard shim over bucket followers. Upgraded springs recommended for optimum performance.
- Camshafts must turn smooth in the cylinder head, provide free travel by machining where needed
- Distance between valve seal and retainer at full lift must be 0.6mm at least
- Minimum valve spring travel of 1.0mm at full lift must be provided
- Distance between the valve and piston 1.0mm (pref. 1.5mm). check 5-15? before TDC on the exhaust and after TDC on the intake
- Only for use in competition engines?with adjustable engine management
Camshaft Data | Intake | Exhaust |
---|---|---|
Lash ramp | 0.25mm | 0.25mm |
Duration @ 0.1mm | 264? | 242? |
Duration @ 1.0mm | 232? | 211? |
Valve lift | 11.25mm | 10.00mm |
Lobe angle | 125? | 120? |
Timing @ 1.0mm | -9? / 61? | ?45? / -14? |
Valve lift @ TDC | 0.50mm | 0.35mm |
Parts Required | |
---|---|
Cam Wheels | Y |
Followers | Y |
Valve Lash | Y |
Valve Springs | Y |