Sport Camshaft W Left – Porsche 911S 2.4 190 HP 6-Cyl 12V (28270)

Improve the performance of your classic Porsche 911S 2.4 190 HP engine with a W-type sport camshaft designed for the left side of the engine. This camshaft is intended for Porsche 6-cylinder 12V engines where precise valve timing, efficient gas exchange, and a sporty engine character are essential.

The W camshaft profile provides extended valve opening duration and optimized cam lift parameters, supporting improved cylinder filling and more efficient exhaust flow. This helps enhance throttle response, power delivery, and overall performance potential while maintaining compatibility with the original valve clearance setup.

Technical Data:
Make and model: Porsche 911S 2.4 190 HP 6-Cyl 12V
Camshaft type: W – left
SKU / Catalog number of this camshaft: 28270
Stock camshaft marking: 901105109 01 L

All camshaft SKUs:
Left: 28270 / Right: 28280

Cam lift: Intake: 8.80 mm / Exhaust: 7.95 mm
Total duration: Intake: 326° / Exhaust: 289°
Duration at 0.1 mm: Intake: 362° / Exhaust: 316°
Duration at 1.0 mm: Intake: 281° / Exhaust: 252°
Duration at 2.0 mm: Intake: 259° / Exhaust: 235°
Valve clearance: stock

Application:
Porsche 911S 2.4 190 HP
Porsche 6-Cyl 12V

A dedicated sport camshaft for classic Porsche engines, offering improved performance potential, sharper response, and a true motorsport-inspired character.