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boiling point. An auxiliary electric
water pump will continue to circulate
coolant through the turbo even after
the engine shuts down to help cool
the turbo and bearings. To further
ensure reliable engine performance
under tough conditions, sodium-filled
exhaust valves were included in the
cylinder head.Uninterrupted Fun Factor
Producing a fun car to drive is one
thing—ensuring the fun factor isn’t
limited is another. The Veloster N
feels like a modern take on the sport
compact cars of the ’90s. In Normal
mode, the Veloster N drives like a
comfortable, levelheaded commutercar. At the push of a button, switching
to N mode, it transforms into a
corner-killing weekend warrior. The
touchscreen display that, moments
earlier, showed you which XM channel
you were listening to now relays
everything from real-time G-force
values to power and torque output and
boost pressure. Switch to the lap timer,
and you’re ready to see if your split
times are improving or not. With the
N Performance Package, the Veloster
N gets its maximum factory output
of 275 hp and, with it, a lot of fun
factor. An electronic valve opens the
secondary exhaust outlet, changing
the exhaust note from a hum to a
snarl. Coming off the throttle, you getTHE INNER WORKINGS OF THE E-CVVT
IN ORDER to adjust the camshaft timing while the engine is running, it is
necessary to overcome significant centrifugal force. While the exhaust cam
relies on oil (hydraulic) pressure to adjust the cam timing, the intake side
ELECTRIC MOTOR CYCLOIDAL DRIVEThe E-CVVT system is composed of the cam gear cover, the E-CVVT drive motor, and the hollow
camshaft it’s bolted onto.The intake cam timing has an adjustment range of roughly 45 degrees from
maximum retard to maximum advance.Rather than relying on a vacuum-controlled wastegate actuator and a boost
control solenoid, the Theta II-i turbocharger relies on an electronic wastegate
actuator.The Veloster N feels like a
modern takeon the sport
compact cars of the ’90s.