Suzuki R engine

The Suzuki R engine is an inline-three engine that has been produced by Suzuki since 2011. Initially introduced in the third-generation MR Wagon, and intended as a replacement for the K6A engine, the R engine has since been used in various Suzuki's, such as the Alto, the Wagon R, and the Carry.

Suzuki R engine
Overview
Manufacturer	Suzuki
Production	2011-present
Layout
Configuration	Inline-three engine
Displacement	658.2 cc (0.66 L) 657.7 cc (0.7 L)
Cylinder bore	64 mm (2.5 in) 61.5 mm (2.42 in)
Piston stroke	68.2 mm (2.69 in) 73.8 mm (2.91 in)
Cylinder block material	Aluminium
Cylinder head material	Aluminium
Valvetrain	DOHC 4 valves per cylinder with VVT
Valvetrain drive system	Timing Chain
Compression ratio	9.0:1-12.0:1
Combustion
Turbocharger	IHI VZ65 Turbo
Fuel system	Multi-port fuel injection
Fuel type	Petrol
Oil system	Wet sump
Cooling system	Water-cooled
Output
Power output	49–65 PS (48–64 hp; 36–48 kW)
Torque output	58–100 N⋅m (6–10 kg⋅m; 43–74 lb⋅ft)
Chronology
Predecessor	Suzuki K engine (K6A)

Overview

For the release of the third-generation MR Wagon in 2011,^[1] Suzuki introduced a brand-new 658 cc (40.2 cu in) inline-three petrol engine.^[2] The new engine, known as the R06A,^[3] was available in naturally-aspirated and turbocharged forms, which produced 54 and 64 hp (55 and 65 PS; 40 and 48 kW) respectively.^[2] Introduced as a replacement to the K6A that had been in production since 1994, the R06A features four valves per cylinder (for a total of 12), dual overhead camshafts, with a bore and stroke of 64.0 and 68.2 mm (2.52 and 2.69 in) respectively.^[4] In addition, the size and weight of the engine were reduced by adopting a cylinder head integrated into the exhaust manifold and a simpler catalyst case structure. While this is good for fuel economy and emissions, the exhaust is more restricted which lowers horsepower and power potential. The naturally-aspirated versions of the R06A feature variable valve timing (VVT) on both the intake and exhaust valves (the first Suzuki engine to do so), and VVT on the intake valves of the turbocharged models.

For 2012, Suzuki added the naturally-aspirated version of the engine to the Alto's range, with R06A-equipped Altos being called the Alto Eco.^[5] The Wagon R also received both forms of the R06A engine in 2012, to coincide with the release of the fifth-generation model. In 2013, the R06A was used for the new Suzuki Spacia and the updated Suzuki Carry, and in 2014, it was used for the new Suzuki Hustler.^[3] The Carry was the first vehicle to use the R06A engine in a rear-wheel-drive configuration, and had a slightly detuned 50 PS (49 hp; 37 kW) version of the engine.^[3]

In December 2019,^[6] Suzuki introduced a brand new R engine for the 2020 model Suzuki Wagon R and second-generation Suzuki Hustler. It's a naturally aspirated 657 cc (40.1 cu in) inline-three petrol engine, known as the R06D. Only available in naturally-aspirated form and produced 48 hp (49 PS; 36 kW).

R06A

The R06A is a 658 cc inline three DOHC 12 valve engine with VVT. Available in naturally aspirated or turbocharged. Bore x stroke is 64.0mm x 68.2mm. Compression ratios are 1:9.1 (turbo) and 1:11.0-11.5 (NA). Output is between 49-54 PS @5700-6500 rpm with 58-63 N.m of torque @3500-4000 rpm (NA) and 64 PS @6000 rpm with 95-100 N.m @3000 rpm of torque (turbo). R06A can come paired with Suzuki's mild hybrid system, with the W05A electric motor (3.1 PS and 50 Nm) and a 10Ah battery.

Applications

Naturally-aspirated

• 2011–2016: Suzuki MR Wagon/Nissan Moco
• 2012–2020: Suzuki Wagon R/Mazda Flair
• 2012–present: Suzuki Alto/Mazda Carol
• 2013–present: Suzuki Carry/Mazda Scrum/Nissan NT100 Clipper/Mitsubishi Minicab
• 2013–present: Suzuki Spacia/Mazda Flair Wagon
• 2014–2020: Suzuki Hustler/Mazda Flair Crossover
• 2015–present: Suzuki Every/Mazda Scrum/Nissan NV100 Clipper/Mitsubishi Minicab

Turbocharged

• 2011–2016: Suzuki MR Wagon/Nissan Moco
• 2012–present: Suzuki Wagon R/Mazda Flair
• 2013–present: Suzuki Spacia/Mazda Flair Wagon
• 2014–2021: Suzuki Alto/Mazda Carol
• 2014–present: Suzuki Hustler/Mazda Flair Crossover
• 2015–present: Suzuki Every/Mazda Scrum/Nissan NV100 Clipper/Mitsubishi Minicab/Mitsubishi Town Box
• 2018–present: Suzuki Jimny
• 2021–present Caterham Seven 170 (tuned to 85 PS & 116 Nm)

R06D

The R06D is a naturally aspirated 657 cc inline three DOHC 12 valve engine with VVT. Bore x stroke is 61.5mm x 73.8mm. Compression ratio is 1:12.0. Output is 49 PS @6500 rpm with 58 N.m of torque @5000 rpm. This engine can also come in a mild hybrid configuration, but with the slightly less powerful W04C electric motor (2.6 PS and 40 N.m) and a lower capacity 3Ah battery.

Applications

• 2020–present: Suzuki Hustler/Mazda Flair Crossover
• 2020–present: Suzuki Wagon R/Mazda Flair
• 2021–present: Suzuki Alto Hybrid
• 2021–present: Suzuki Wagon R Smile

References

1. "Suzuki MR Wagon / MR Wagon Wit Special Site" (in Japanese). Suzuki. Archived from the original on 24 June 2014. Retrieved 23 December 2014.
2. Radu, Mihnea (21 January 2011). "2011 Suzuki MR Wagon Launched in Japan". autoevolution. Retrieved 23 December 2014.
3. Kusakabe, Hirokazu (29 August 2013). "R06A型エンジンと5速MTを縦置き！　スズキ、軽トラック「キャリイ」をフルモデルチェンジ！" [Place vertically R06A engine and 5-speed MT! Suzuki, a full model change a light truck "Carry"!] (in Japanese). Autoblog Japan. Retrieved 23 December 2014.
4. "スズキ：R06A型エンジン" [Suzuki: R06A engine] (in Japanese). greeco channel. Retrieved 23 December 2014.
5. "New JDM Suzuki Alto Eco Returns up to 32km/L – 75MPG". Carscoops. 25 November 2011. Retrieved 23 December 2014.
6. Prashant, Singh (31 December 2019). "Suzuki WagonR range gets a new engine in Japan". indianautosblog. Retrieved 30 March 2020.