2020 Kawasaki KRX Engine

TailGunner said:

Figured those would be the figures, which is precisely where all the KRX's competition is at.

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sxslife said:

I think the whole concern for power originated from not knowing the engine's CC's.
Now we do and FI isn't as much of a priority. At least for now.

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The Kawasaki Teryx KRX 1000 sport side x side’s compact new 999 cc, liquid-cooled, 4-stroke parallel twin engine with a bore and stroke that is set at 92.0 mm x 75.1 mm delivers both high-rpm power and robust low-end torque to accommodate a wide range of situations, from trail running to technical sections.

Dual snorkel air intakes (one for the engine; one for the CVT) are recessed behind the driver and passenger doors and help reduce dust in the intakes. Pre-filters at the intake entrances help ensure minimal dust ingestion and are complimented with a Donaldson air filter located downstream in the engine intake to offer superb dust collection performance.

A large, 20-liter intake chamber helps ensure undisturbed airflow into each of the two intake funnels, enabling a flat torque character to be achieved. The long, race-style intake funnels contribute to the robust low-end torque. The shape and length of the two funnels are different, which helps to achieve a smooth torque feeling. The carefully designed downdraft-style intake layout contributes to improved response, and overall engine height is minimized for a more compact engine.

An electronic throttle valve system enables the ECU to control the volume of both the fuel (via fuel injectors) and the air (via throttle valves) delivered to the engine. Ideal fuel injection and throttle valve position results in smooth, natural engine response and the ideal engine output. Dual 50 mm throttle bodies help flow a large volume of air for quick, crisp response, and fine-atomizing injectors contribute to efficient combustion and engine response. Long-reach spark plugs were chosen to have more contact with the cooling jacket and help to prevent engine knock.

Similar to Kawasaki’s Ninja® ZX™-10R supersport flagship motorcycle, the intake port exits are machined in two stages (first along with the valve seats, then again at an inclined angle) to create a smoother, straighter path for intake air as it enters the combustion chamber. Intake ports are polished – another tuning trick often seen on high-performance motorcycles – further contributing to increased performance. Lightweight cast pistons minimize reciprocating weight, which contributes to high-rpm performance and a low-friction molybdenum coating on the skirts, helping reduce mechanical loss.

Exhaust ports feature D-shaped cross-sections that efficiently expel spent gases for increased performance. Like the intake ports, the exhaust ports are polished to help increase performance. Hydroformed header pipes transition from D-shaped cross-sections, matching the exhaust ports, to circular. Downstream, their diameter increases before joining at the collector and entering the silencer – a design that contributes to both power feeling and quick engine response. A patent pending, innovative balancer weight layout and compact oil pan contribute to the compact engine design. Baffle plates in the oil pan help to ensure that the oil pump is fed with oil even at extreme angles of roll. A large-capacity radiator is ideally situated at the front behind the prominent grill, where it can easily get cooling air, and is positioned so that it is protected by both the grill and the frame.

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Richmond said:

It's cool to see Kawasaki draw inspiration from its motorcycles for the design of the engine.

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