Camshafts


Fits:
Porsche 986 Boxster 3.2L 1999-2002
Porsche 996 Carrera 3.4L 1998-2001
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Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610522255
The product you are viewing cross references to these numbers
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Precision-Engineered Camshafts – Performance, Reliability, and Power for Porsche Engines
Camshafts are the heartbeat of any Porsche engine, controlling the timing and lift of the intake and exhaust valves to ensure precise combustion and efficient power delivery. A well-tuned camshaft defines how your engine breathes, responds, and performs — whether it’s a daily-driven 911 or a track-focused GT model.
At Design911, we supply a complete range of high-quality and performance-grade camshafts engineered to meet or exceed manufacturer specifications. Each camshaft is precision-machined for exact tolerances, ensuring smooth valve operation, consistent timing, and optimal performance across all driving conditions.
What Do Camshafts Do?
Camshafts regulate how air and fuel enter and exit the combustion chamber. By controlling valve timing, lift, and duration, they play a crucial role in engine power and efficiency.
Core Functions:
- Control
valve timing for optimal engine breathing.
- Determine
power characteristics, from low-end torque to high-rpm performance.
- Synchronise
intake and exhaust cycles for smoother operation.
- Enhance efficiency, combustion stability, and throttle response.
High-performance camshafts are often tuned to deliver sharper throttle response, higher power output, and improved torque delivery for modified or rebuilt engines.
Why Do Camshafts Fail?
Even with Porsche’s engineering excellence, camshafts are
subject to wear over time. Common causes of camshaft failure include:
- Oil
starvation leading to friction and surface wear.
- Excessive
heat or poor lubrication degrading cam lobes.
- Improper
timing belt/chain tension causing misalignment or damage.
- Mechanical
fatigue due to extended mileage or racing conditions.
- Contaminated oil introducing abrasive particles into the valvetrain.
A worn or damaged camshaft can cause loss of power, misfires, rough idle, and reduced engine efficiency — making timely replacement essential to restore peak performance.
Why Replace with Performance-Grade Camshafts?
Replacing worn components with precision-engineered camshafts restores engine reliability and maximises output. Upgraded camshafts can also provide noticeable gains in horsepower and responsiveness.
Key Benefits:
- Restores
valve timing accuracy and smooth engine operation.
- Increases
power and torque, especially in performance-tuned engines.
- Improves
fuel combustion efficiency for cleaner running.
- Ensures
long-term reliability with precision-machined surfaces and premium
materials.
- Perfect fitment with no modification required on compatible Porsche engines.
Whether maintaining a classic flat-six or upgrading a modern turbocharged engine, these camshafts are designed to deliver manufacturer-level precision with motorsport-grade durability.
Highlights:
- Precision-engineered
camshafts for Porsche models old and new.
- Enhanced
performance and reliability, meeting manufacturer standards.
- Motorsport-grade
construction ensures durability under extreme loads.
- Improved
airflow and combustion efficiency for optimal power delivery.
- Ideal for restorations, rebuilds, and performance tuning projects.
- Designed for seamless compatibility with Porsche flat-six, turbo, and hybrid engines.