Engine Special Features - Lotus Evora 2011 Owner's Handbook Manual

Engine Special Features

The 3.5 litre V6 engine of the Lotus Evora uses chain driven
twin overhead camshafts for each cylinder bank to operate four
valves per cylinder via a Dual VVT-i (Dual Variable Valve Timing
- intelligent) system. The engine also features direct ignition
with individual spark plug mounted coils, ACIS (Acoustic Con-
trol Induction System) and ETCS-i (Electronic Throttle Control
System-intelligent). These control functions contribute towards
improved engine performance, fuel economy and reduced ex-
haust emissions.
The Evora S engine is uprated by the fitment of a Harrop
HTV1320 supercharger (utlizing Eaton TVS Technology
The exhaust silencer fitted to the Evora S utilizes an active valve
designed to reduce the back pressure at high rpm by opening a
by-pass valve allowing the engine to safely generate full power
(also see page 93).
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