Tomei Camshaft - PROCAM - Nissan (R)PS13,P10,W10 SR20DE, Intake, 260 / 11.2mm simple2 adding a stopper ring only

adding a stopper ring only provides limited improvement and O-ringing the cylinder head or block becomes a necessity for a reliable combustion seal

guaranteeing the very best quality

Keep your engine running as Honda engineered it

When aiming to use the 4AG for high end engine speeds this is an absolute must to include in your engine to cope with 10

After years of testing and extensive research

Tomei Camshaft - PROCAM - Nissan (R)PS13,P10,W10 SR20DE, Intake, 260 / 11.2mm simple2 adding a stopper ring onlyWhen opening the intake valve during high acceleration the G from the camshaft requires to send as much mixture to the cylinder, Intake, the shortest time possible. However if the speed is too high it can damaged the Valves, Valve Seats and Valve Springs if the Acceleration G is too high. The Asymmetrical profile design given to the camshafts will allow the Intake and Exhaust Valves to fulfill the target requirement with the wider duration and high