The Suzuki G engine is a series of three- and four-cylinder internal combustion engines manufactured by Suzuki, Suzuki Motor Corporation for various automobiles, primarily based on the GM M platform, as well as many small trucks such as the Suzuki Samurai and Suzuki Vitara and their derivatives.

Straight-threes

G10/G10 Turbo

The G10 (sometimes referred to as the "G10A" to set it apart from the later #G10B, G10B) is a Straight-three engine, straight-three gasoline four-stroke engine using aluminum alloy for the block, cylinder head and pistons. It is equipped with either a carburetor or electronic fuel injection and was also offered as the G10T with an IHI Corporation, IHI RHB31/32 turbocharger and either Multi-port fuel injection, MPFI or a carburetor. It has a single overhead camshaft driving six valves. Cylinder spacing is , as for the four-cylinder G13/G15/G16 engines. A bore and stroke give the engine a total of of displacement. It produces at 5100 rpm and at 3200 rpm with 9.5:1 compression in the carbureted model, at 5700 rpm and at 3300 rpm in the fuel-injected model. The original home market version originally offered a carbureted JIS at 5500 rpm, later power output fluctuated around . From 1984 to 1988 the standard G10 engine used a hemispherical head carbureted design with mechanical lifters. From 1989 to 2001 the engine received updates in the form of throttle-body fuel injection and hydraulic lifters. A detuned unit, with a slightly different camshaft, two-ring pistons and differently tuned engine control unit, was used in the ultra-fuel-efficient Geo Metro XFi model, which delivered as much as . In the US, the G10 in the 2000 Chevrolet Metro became the last engine available on an American-sold vehicle to use throttle body injection for fuel delivery. Through the 1985-1991 model years a turbocharged MPFI version of the G10 was offered in some markets. This engine delivered at 5500 rpm and at 3500 rpm. This turbocharged engine, with mechanical lifters, was available in both the US and Canadian Firefly/Sprint/Forsa from 1987-88. Only the Canadian Firefly/Sprint had this option, with hydraulic lifters, in the 1989-1991 model years. In the Japanese domestic market, the car was originally carbureted ( Japanese Industrial Standards, JIS at 5500 rpm, at 3500 rpm) and went on sale in June 1984. In October 1987, along with a facelift, the home market Turbo received fuel injection and power output went up to JIS, torque to . It was a short-lived version, however, as by September 1988 the car was no longer on sale in the Japanese domestic market. As the only market in the world, Canada did continue to receive this engine for its versions of the second generation Cultus. Because of the physics of the straight-three engine, the G10 tends not to idle as smoothly as other engines such as a straight-six engine. This engine has a Interference engine, non-interference valvetrain design. Applications: * 1985–2001 Suzuki Cultus and global nameplate siblings: Chevrolet Sprint, Geo/Chevrolet Metro, Pontiac Firefly, Suzuki Swift, Suzuki Forsa * November 1984– Suzuki Cultus AA41S AB41S * 1988– Suzuki Cultus AA43S AA43V AB43S AA44S AB44S Ultralight aircraft * ICP Savannah

Straight-fours

G10B

The G10B was an all-aluminium engine, a inline-four engine, four-cylinder SOHC 16-valve engine which produces at 6000 rpm and of torque at 4500 rpm. It was sold in both carburetted and MPFI form. It was widely used in motorsport in India due to its lightweight and tunability. The mounting points of the engine block were similar to that of the G13 and so an engine swap was a relatively easy task. It was phased out when production of Zen ceased in 2006. It was made only in India but was sold in all countries the Zen was sold. But the Zen which was sold as Suzuki Alto 1.0 in Europe came with a detuned G10B 8-valve engine which produces at 5500 rpm and of torque at 4500 rpm.The engine head & above spares are exactly idential to the Zen Carburettor sold in India from 1993 to 1999. * 1993–2006 Maruti Zen (sold as Suzuki Alto in Europe, Australia). * 2007–2017 Suzuki Cultus hatchback (Pakistan)

G12

The G12B is an inline-four engine using aluminum alloy for the block, cylinder head and pistons. It is derived from the G13BB engine by reducing the bore to to displace . Stroke remains the same at . It has a SOHC 16V head and the fuel delivery is by multi-point fuel injection. It is Bharat stage emission standards, BS6 (equal to early Euro emission standards, Euro 6) emissions compliant. It has lighter pistons and other detail improvements to be a more fuel efficient engine than the G13BB on which it is based. Maruti modified the engine to displace less than 1200 cc to take advantage of the reduced excise duty on such vehicles in India. It produces at 6000 rpm and at 3000 rpm for petrol variant and at 6000 rpm and at 3000 rpm for CNG variant. * 2010–present– Maruti Eeco * 2016–present– Suzuki Carry#T120SS, Maruti Suzuki Super Carry (CNG only)

G13 series

The G13 is an inline-four engine using aluminum alloy for the block, cylinder head and pistons. Displacing for the G13A and for all other G13 engines, fuel delivery is either through a carburetor, throttle body fuel injection or multi-point fuel injection. This engine was made with different valvetrain designs: 8 or 16 valve single overhead camshaft, SOHC or 16 valve double overhead camshaft, DOHC. All G13 engines have a bore and a stroke size of except for the G13A engine which has a stroke. There was also a "#G13C, G13C variant built in Indonesia, combining the longer stroke with a bore.

G13A

The 1324 cc SOHC 8-valve G13A has a Interference engine, non-interference valvetrain design. Horsepower ranges from 60-70 PS with 90-100 N.m of torque. * Bore x Stroke: 74mm x 77mm * Compression Ratio: 8.9:1 * Cylinder Block Deck Height: 186.8mm * Cylinder Head Volume: 32.2cc * Head Gasket Thickness (compressed): 1.2mm * Intake Valve O.D. 36mm * Exhaust Valve O.D. 30mm * It was used in the following vehicles: ** November 1984–1988 Suzuki Cultus/Swift ** 1984–1988 Suzuki Jimny 1300 (JA51) ** 1985–1988 Holden Barina MB/ML (Australia/New Zealand) ** 1986–1990 Suzuki Samurai ** 1992–1998 Suzuki Cultus, Suzuki Margalla (Pakistan)

G13B

This 1298 cc DOHC 16-valve engine with bore and stroke of 74mm x 75.5mm (2.91 in x 2.97 in). It uses the older distributor driven off the intake camshaft, and produces approximately at 6500 rpm / at 5000 rpm. Redline is set at 7400–7600 rpm. The compression ratio is between 10.0–11.5:1. This engine has an Interference engine, interference valvetrain design, making periodic timing belt changes vital to the engine's life. It was used in the following vehicles: *1985 Autozam AZ-1#Suzuki prototypes, Suzuki RS/1 (prototype) * 1986–1994 Suzuki Cultus, Suzuki Cultus/Swift GTi AA33S/AA34S

G13BA

The SOHC 8-valve G13BA with carburettor or single-point fuel injection and produces and of torque. It has 9.5:1 compression ratio and also a Interference engine, non-interference valvetrain design. 1995 to 1997 U.S. and Canadian-market engines gained hydraulic lash adjusters. It was used in the following vehicles: * 1989 Suzuki Sidekick (JA trim) * 1989–1993 Holden Barina - (carburetor: at 6,000 rpm; at 4,000 rpm) * 1989–1997 Suzuki Cultus, Suzuki Swift * 1991–1995 Suzuki Samurai * 1991–2004 Suzuki Cultus, Chevrolet Swift * 1992–1997 Geo Metro * 1993–1998 Suzuki Jimny (JB31/32) * 1994–2000 Maruti Esteem * 1996–2004 Subaru Justy * June 1994–March 2000 Maruti Gypsy King

G13BB

The SOHC 16-valve G13BB (introduced in March 1995) has electronic multi-point fuel injection (MPFI), generating and . The G13BB uses a wasted spark arrangement of two coils bolted directly to the valve cover. This engine uses a MAP sensor to monitor manifold pressure, similar to the G16B series. This engine has a Interference engine, non-interference valvetrain design. It uses the same G series block found in many other Suzuki models and so it is a popular conversion into the Suzuki Sierra/Samurai, which uses either a G13A (85-88) or G13BA (88.5-98). This allows the engine to fit into the engine bay simply as engine and gearbox mounts are identical and both engines are mounted North-South. It was used in the following vehicles: * 1995–2002 Suzuki Cultus Crescent * 1997–2003 Suzuki Cultus, Suzuki Swift * 1998–2001 Geo Metro, Chevrolet Metro/Pontiac Firefly/Suzuki Swift * 1998–2003 Suzuki Jimny * 1998–2007 Suzuki Cultus, Maruti Esteem * 1999–2015 Suzuki Cultus, Changan Linyang * 2000–2004 Suzuki Carry, Suzuki Every Landy/Carry 1.3 * 2000–2017 Maruti Gypsy, Maruti Gypsy King * 2001–2004 Subaru Justy

G13C

The G13C was bored out by one millimeter, for a bore and stroke of and a displacement of . Maximum power was listed at at 6000 rpm in 1999. This engine was developed by Suzuki's Indonesian subsidiary and also available for Malaysian market Suzuki Futura 1400. It was first used in the 1991 Suzuki Carry#Futura, Suzuki Carry Futura. It was used in the following vehicles: * 1991–1999 Suzuki Carry#Futura, Suzuki Carry Futura SL413 (ST130)

G13K

"G13K" is the JDM version of G13B. It has different cams, intake and exhaust manifolds and ECU with cutoff at 8600rpm. It makes 115 hp. It was used in the Japanese version of Swift GTi called Cultus GT-i, replacing the first generation Swift GTi.

G15A

This engine is a 1.5 L (1,493 cc) Multi-valve, 16-valve SOHC engine configuration, generating between at 5500–6500 rpm and at 3000–4000 rpm. It has a bore in conjunction with an stroke. Applications: * 1991–1995 Suzuki Cultus#Second generation (1988), Suzuki Cultus sedan * 1995–2002 Suzuki Cultus Crescent/Baleno * 2000–2018 Suzuki Carry#Futura, Suzuki Carry Futura (ST150, Indonesia) * 2004–present Suzuki APV (Indonesia/Pakistan) * 2011–2019 Suzuki APV, Suzuki Mega Carry (Indonesia)

G16

The G16 is an inline-four engine displacing . It shares the G15A's bore, in a long block with a stroke.

G16A

Either 8-valve SOHC carb or Single-point injection, EPI before 1990 or 16-valve SOHC Single-point injection, EPI after 1990. The 16-valve G16A mainly used in Japan and some selected markets. Applications: * 1989–1992 Suzuki Sidekick (8-valve) * 1988–1990 Suzuki Escudo (8-valve) * 1990–2000 Suzuki Escudo (8-valve) * 1990–2001 Suzuki Cultus sedan * 1996–1998 Suzuki X-90 * 1997–2000 Suzuki Carry#Futura, Suzuki Carry Futura (ST160, Indonesia) * 2005–present Suzuki APV (except for Indonesia and Pakistan)

G16B

The SOHC G16B was the 16-valve version of G16A for worldwide market. The Suzuki G16B engine features an aluminum cylinder block with wet liners and aluminum cylinder head, cylinder bore and piston stroke are 75.0 mm (2.95 in) and 90.0 mm (3.54 in), respectively. Compression ratio rating is 9.5:1. The G16B engine is equipped with Multi-point fuel injection (MPFI) and uses a wasted spark arrangement of two coils bolted directly to the valve cover. This engine produced at 5,600 rpm of and at 4,000 rpm. Used in the following vehicles: * 1992–2005 Suzuki Vitara * 1992–1997 Suzuki Cultus/Swift/Esteem * 1995–2002 Chevrolet Tracker (Americas) * 1995–2007 Suzuki Cultus Crescent, Suzuki Baleno/Esteem * 1996–1998 Geo Tracker * 1996–1998 Suzuki Sidekick

Notes

References

* {{DEFAULTSORT:Suzuki G Engine Suzuki engines, G Straight-three engines Straight-four engines Gasoline engines by model