The GSX-S1000’s long-stroke GSX-R engine has been refined to produce a broad, smooth torque curve through the full rev-range with increased peak horsepower.
The GSX-S1000 provides predictable and controllable throttle response with abundant top-end power to provide the rider an exciting riding experience.
New camshaft profiles decrease lift and valve overlap not only to improve emissions, but balance the engine’s performance and drivability, enhancing rider control.
New valve springs are calibrated to the new camshafts to aid performance and improve durability.
The cam chain tensioner and tension adjuster are updated to reduce friction and improve durability.
Suzuki’s legendary Twin Swirl Combustion Chamber (TSCC) design is machined into the cylinder head that, with the flat-top pistons, achieves an optimal 12.2:1 compression ratio that helps deliver a broad spread of power throughout the entire rev range.
Aluminum pistons, engineered with use of Finite Element Method (FEM) analysis, are cast with optimal rigidity and weight.
Ventilation holes between the cylinders reduce pumping loss within the crankcase so the engine can deliver more power and torque.
Suzuki Composite Electrochemical Material (SCEM)–plated cylinders integrated into the upper crankcase reduce friction and improve heat transfer and durability.
The engine finish is revised to present an even stronger image of quality while the design of the engine covers (clutch, stator, and drive sprocket) are updated with a new shape and finish.
New electronic throttle bodies are used on the GSX-S1000, so engine response is smooth and controlled, especially when the rider is applying the throttle to accelerate out of a corner.
These new Ride-by-Wire throttle bodies provide precise control for the Suzuki Drive Mode Selector (SDMS), Traction Control (TC), and Bi-directional Quick Shift system (QS).
Long-tip, 10-hole fuel injectors on each throttle body improve fuel atomization, while the automatic Idle Speed Control (ISC) improves cold starting and stabilizes the engine idle.
The air cleaner has a new internal structure that contributes to the GSX-S1000’s increased engine performance while maintaining the exciting intake sound that the GSX-S1000 is renowned for.
The air cleaner’s external shape is changed to accommodate the larger capacity fuel tank.
Retaining the under-chassis design, sharp looks and exciting note of the prior generation’s system, the GSX-S1000’s new stainless steel, 4-2-1 exhaust system is completely redesigned and tuned.
Behind the header pipes, the redesigned mid-chamber contains a second catalytic converter to help ensure emissions compliance, a low center-of-gravity, and good exhaust flow to help the engine deliver a strong low- to mid-range punch with an exciting rush to redline.
A refined Suzuki Exhaust Tuning (SET) valve manages flow from the mid-chamber into the sculpted muffler that has a pleasing appearance that’s not common to under-chassis exhausts while creating an exciting, distinctive sound.
With the catalytic converters located in the mid-chamber, GSX-S1000 riders can fit an EPA or CARB-compliant silencer from suppliers such as Yoshimura R & D, USA.
The digital ignition fires iridium-type spark plugs that increase spark strength and combustion efficiency, contributing to higher power, more linear throttle response, easier engine start-up, and a more stable idle. These quality components also last longer than conventional spark plugs.
The restyled radiator shrouds efficiently guide cooling air to the high-capacity curved radiator.
A thermostatically controlled cooling fan helps ensure lower coolant temperatures when riding in slow moving traffic. The design also deflects hot air away from the rider at speed.
Additional heat is removed from the engine via the use of a lightweight and compact liquid-cooled oil cooler (like those used on certain GSX-R models).