Sport Camshaft GT/R Left – Porsche 911 S/C (28750)

Improve the performance of your Porsche 911 S/C engine with a GT/R sport camshaft designed for the left side of the engine. This camshaft is intended for performance-focused Porsche builds where improved valve timing, better cylinder filling, and a more responsive engine character are essential.

Thanks to increased intake and exhaust cam lift compared to the factory specification, together with optimized valve opening durations, the camshaft supports more efficient gas exchange and improved engine breathing. It 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 911 S/C
Camshaft type: GT/R – left
SKU / Catalog number of this camshaft: 28750

All camshaft SKUs:
Left: 28750 / Right: 28760

Cam lift: Intake: 8.15 mm / Exhaust: 7.65 mm (stock: 7.10 / 6.70 mm)
Total duration: Intake: 288° / Exhaust: 272° (stock: 277° / 271°)
Duration at 1.0 mm: Intake: 259° / Exhaust: 242° (stock: 247° / 239°)
Duration at 2.0 mm: Intake: 238° / Exhaust: 221° (stock: 223° / 214°)
Valve clearance: stock

Application:
Porsche 911 S/C

A dedicated tuning solution for classic Porsche engines, offering improved performance potential, better response, and a clearly sportier engine character.