Turbo Camshaft Upgrades – Why They Work

For years, a common misconception has circulated in the tuning world: “Camshafts don’t make a difference on turbocharged engines.” At STK Performance, we’ve proven that statement wrong. With the release of our 252/262H camshaft set, we’ve shown clear, measurable gains backed by dyno results – not theory.

Why Turbo Engines Benefit from Cams

Turbocharged engines already force more air into the cylinders, but the way that air moves in and out is still controlled by the camshafts. Factory cams are designed for efficiency and emissions, not outright performance. By optimizing valve timing, lift, and duration, performance camshafts improve cylinder filling and exhaust scavenging, helping the turbo work more effectively across the rev range.

Key benefits include:

  • Reduced backpressure – better exhaust flow lets the turbo spool faster and more efficiently.
  • Improved cylinder filling – more air-fuel mix per cycle equals more power.
  • Stronger midrange & top-end – broader powerband compared to restrictive OEM cams.

The Proof is in the Graphs

With the STK Performance 252/262H camshaft set, real-world dyno testing shows clear horsepower and torque increases over stock. Gains are seen not only at peak but throughout the rev range, proving that properly designed turbo camshafts make a significant impact.

The Final Word

Turbo engines do respond to camshaft upgrades. The idea that “boost does all the work” ignores the importance of airflow dynamics inside the engine. With the right cam profile, you’re not just relying on boost pressure – you’re unlocking the engine’s full breathing potential.

At STK Performance, we design camshafts specifically for turbocharged applications, ensuring every profile delivers proven, repeatable results. The numbers speak for themselves.

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