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VarioCam Plus.
This two-in-one engine concept
seamlessly adapts in response to
VarioCam Plus combines variable
driver input. The result: instant
valve timing with two-stage lift
acceleration and extremely smooth
on the inlet side. This results in
running.
smoother running, better fuel
economy and lower exhaust emis-
sions. As well as greater top-end
power and low-end torque.
VarioCam Plus
The variation in intake timing is
steplessly controlled by means
of an electro-hydraulic rotary
vane adjuster at the head of the
corresponding camshaft.
To improve throttle response
during the warm-up phase,
VarioCam Plus selects high valve
· 36 ·
lifts with retarded valve timing.
Ignition system.
In the middle and low load ranges,
low valve lifts with advanced
The ignition system in the Boxster
timing reduce fuel consumption
models is designed for high-volt-
and exhaust emissions. High valve
age static distribution. Individual
lifts generate high torques and
ignition coils are controlled directly
maximum output.
by the engine electronics.
Boxster |
Boxster S and Boxster
· 37 ·
Drive
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