Summit Racing™ Pro Hemi Turbo Camshafts

Summit Racing™ Pro Hemi turbo camshafts are easy on the valvetrain and stable at high rpm. They require springs and a tune, along with phaser limiter and an MDS (multi-displacement system) delete. The smaller cams in the turbo group are designed for maximum spool and strong power through the range, while the larger cams are designed for larger displacement with T6 turbos or twins. We offer several choices; pick the best fit for your turbocharged car. Notes: * Pro Hemi Stage 1 turbo cam is optimized for T4 single turbos. It spools quick with a 5.7L, has great midrange, and good top-end. It works with a factory converter, but a tune and phaser limiter are required. A free flowing aftermarket exhaust is recommended. * Pro Hemi Stage 2 turbo cam is optimized for T4 single turbos. It spools great with a 5.7L, has great midrange, and top-end. It is the maximum cam we would recommend with a factory converter, but a tune and phaser limiter is required. A free flowing aftermarket exhaust is recommended. * Pro Hemi Stage 3 turbo cam is optimized for larger T4 single turbos and will spool well on a 5.7L. It has great midrange, a strong top-end, and good valvetrain stability at high rpms. It likes a 3200 converter and an open exhaust is a must. * Pro Hemi Stage 4 turbo cam is optimized for higher flowing T6 single turbos on 6.2L engines and larger. It spools well with great midrange, excellent top-end, and the valvetrain is stable at high rpm. It likes a 3600 converter and an open dump exhaust is recommended. Show Less