Naturally Aspirated Engines Parts 1 and 2

Intake Systems – Camshafts – Exhaust Systems

(click here for Part 2, “Ignitions, Cylinder Heads, Pistons & Cylinders, and the Bottom End”)

One of the main attractions of the Porsche 911 is that fabulous engine and the sound it makes! Besides the physical aesthetics, this one of the reasons why the 911 has enjoyed such loyal ownership since 1965.

No other engine design in recent times has been so over-engineered as the air-cooled 911 engine. From the dry-sump oiling system to the 8 main bearing bottom end, these