What Do Camshafts Do in a Car?

Camshafts control the timing and lift of the engine’s intake and exhaust valves. By rotating in sync with crankshafts, camshafts open and close these valves at optimal moments, allowing the engine to breathe efficiently. The profile, duration, and lift of a camshaft directly impact engine performance, throttle response, and fuel efficiency.

Why Upgrade to a Performance Camshaft?

Enhanced Engine Power

High-performance camshafts can significantly boost horsepower and torque by improving air–fuel flow into and out of the combustion chamber.

Precision Tuning

Performance camshafts are designed to match specific driving styles and performance goals. From street to strip, you can select cam profiles that suit your build.

Better Efficiency

While aggressive camshaft profiles prioritise power, mild cam upgrades can enhance throttle response and fuel efficiency, even in daily-driven vehicles.

Choosing the Right Camshaft for Your Engine

Selecting the right camshaft depends on your engine setup, intended use, and other components, such as piston rings. Engine bearings and crankshafts are components you should also consider. Other key factors include:

• Lift and duration: Determine valve opening and how long the valves stay open.
• Lobe separation angle (LSA): Affects idle quality and power band.
• Compatibility: Ensures it’s designed for your vehicle’s make and model.

Our experts are here to help you navigate your options, including matching camshafts with cylinder heads. For a complete and optimised setup, you may also want to explore car engine lifters. Alternator brackets are another category that may be useful for you.

Cam Kits & Supporting Components

Maximise performance with complete cam kits that include camshaft lifters, pushrods, timing sets, and more. These kits simplify installation and ensure component compatibility for reliable performance gains.

FAQ: Common Questions About Vehicle Camshafts

Is a Camshaft Worth Fixing?

Yes, especially if it’s worn or damaged. A faulty camshaft affects engine timing, performance, and longevity. Upgrading car camshafts with replacement parts can restore optimal function.

What Are the Benefits of Upgrading to a Performance Camshaft?

Benefits include more horsepower, increased torque, improved throttle response, and custom tuning to match your driving needs.

Any Advice on How to Choose the Right Camshaft for My Engine?

Start by assessing your driving goals (daily, race, tow) and existing engine modifications. Then, consult with professionals or browse VPW’s detailed product specs to find the right match among our aftermarket camshafts.