2017 Suzuki GSX-R1000: New Intro Videos Show Variable Valve Timing And Other Tech Features In Action

2017 Suzuki GSX-R1000: New Intro Videos Show Variable Valve Timing And Other Tech Features In Action

© 2016, Roadracing World Publishing, Inc. By In the Suzuki Racing VVT (Variable Valve Timing System) steel balls are positioned in grooves in the intake cam sprocket and adjacent guide plate. When moved outward by centrifugal force, they stack in different grooves during low and high RPM. During high RPM operation the system rotates the intake cam, retarding intake cam timing which elevates peak power. During low RPM operation, the camshaft returns to the prior position. VVTS optimizes intake valve timing is for both high-RPM, and low and mid-RPM ranges. So extra top-end power is available, without dropping low-to-mid range output..

Suzuki Racing VVT (Variable Valve Timing System)

The SR-VVT system was first used in MotoGP racing more than 10 years ago, and is now being used on a production machine for the first time. It uses centrifugal force and fits in the intake cam sprocket assembly, with steel balls positioned in curved grooves in the intake cam sprocket itself and straight grooves in an adjacent guide plate held in place by diaphragm springs and a spring clip. As rpm increases, the balls move outward, aligning the grooves and retarding the intake valve timing for better top-end power.


Suzuki Racing Finger Follower Valve Train

The new Suzuki 2017 GSX-R1000 valve train system is transformed from previous model’s bucket-tappet system to a finger follower rocker arm type to improve valve control and allow higher RPM. The reduced moving mass also allows increased valve lift and higher peak RPM, increasing peak output. Valve response and control is also enhanced throughout the rev range.


Suzuki Exhaust Tuning-Alpha (SET-A)

Suzuki engineers added two servo-operated SET-A butterfly valves, one in each header balance tube. The SET-A valve in each header balance tube remains closed to enhance lower-RPM and mid-range power, then opens to add significant power at higher RPM.

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