Stage 4 Turbo Cam V2

The Stage 4 Turbo Cam V2 from Brian Tooley Racing is a high-performance camshaft engineered for serious engine builders and turbo enthusiasts looking to maximize airflow and power output in forced-induction applications. This cam profile is designed specifically for turbocharged engines where aggressive valve timing and extended duration are critical to unlocking additional horsepower and torque across the RPM band. Whether you're building a street monster or track-focused machine, this camshaft delivers the valve events needed to complement modern turbocharger efficiency.

The Stage 4 Turbo Cam V2 features Brian Tooley Racing's precision-ground lobe geometry optimized for boost response and peak power generation in turbo engines. The extended duration and aggressive lift profile promote superior cylinder filling at elevated boost levels while maintaining reliable valve actuation throughout the entire powerband. This cam works in concert with upgraded valve springs, rocker arms, and fuel mapping to ensure proper valve control under high RPM and high-boost conditions. The engineering behind this profile reflects years of dyno testing and real-world forced-induction experience, resulting in predictable performance gains without sacrificing engine reliability.

The Stage 4 Turbo Cam V2 is ideal for dedicated boost enthusiasts running 10+ psi who are upgrading their fuel system, ignition, and engine management simultaneously. Installation requires proper valve clearance adjustment, rocker arm verification, and a complete tune to exploit the cam's full potential—this is not a bolt-and-go component. Compatibility depends on your engine platform and existing cylinder head design, so verify fit with your engine builder or consult Brian Tooley Racing's application guide before ordering. Paired with quality fuel injectors, a quality fuel pump, and professional tuning, this camshaft delivers measurable gains in boost capacity and sustained power delivery.