BP320 Race Camshaft Set for Zetec SE/Sigma 1.6 16v

The Piper Cams FOC16BP320B is a pair of high-performance race camshafts engineered for Ford Zetec SE/Sigma 1.6 16v engines. This specific BP320 profile is designed for demanding race applications, offering an aggressive power band that kicks in at 3800rpm and extends all the way to 8500rpm, maximizing power output in high-RPM scenarios. Detailed specifications for the BP320 profile include a significant valve lift of 0.460 inches on the inlet and 0.401 inches on the exhaust. The duration figures are 288° for the inlet and 284° for the exhaust. Timing figures are noted as 42/66/64/40, with the full lift positioned at 102° on the inlet and 104° on the exhaust. Valve lift at Top Dead Center (TDC) is 0.147" inlet and 0.108” exhaust, and the recommended valve clearances are .010" inlet and .012” exhaust. This race camshaft profile is not recommended for use with standard fuel injection systems. For optimal performance and reliability, it is ideally suited for setups utilizing throttle bodies. Crucially, installation requires the use of a Piper VSSFOC16K valve spring and retainer set to properly manage the increased valve lift and operating speeds. It is also recommended to pair these camshafts with adjustable cam pulleys, available in red, blue, or black finishes, to fine-tune engine timing.