First generation .28P10.2C 1990.E2.80.931996.29 Infiniti G-series (Q40/Q60)

1 first generation (p10, 1990–1996)

1.1 engine design
1.2 transmission
1.3 equipment
1.4 p10 model refresh changes

first generation (p10, 1990–1996)


1991–1993 g20



1993.5 g20



1994–1996 g20t

the infiniti g20 infiniti s entry-level luxury car in united states 1990 2002, two-year hiatus model years 1997 , 1998, in infiniti i30 became entry-level car. rebadged version of nissan primera sedan, designed european market. launched in september 1990 infiniti s first small car entry-level alternative q45; later advertisements in 1998 second-generation g20 emphasized european heritage tag line born in japan. educated in europe. available in america. 2 generations of g20 exist in united states, hp10 (p10), built 1990 1996, , hp11 (p11), built 1998 2002. g20s front-wheel drive , built in oppama, japan. exterior , interior designs of p10 styled mamoru aoki in 1987.

the g20 first unveiled infiniti dealers @ 1989 new york international auto show (appearing public @ 1990 show), first series production example being assembled on july 10, 1990. final 1996 g20 rolled off assembly line on july 19, 1996. p10 featured first application of nissan s multi-link front suspension in front-wheel-drive car, independent macpherson strut setup in rear. came standard 5-speed manual transmission. options begin automatic transmission, leather interior, , power glass moonroof; touring package (labeled g20t) introduced in 1994 , featured black leather interior sport front bucket seats , fold-down rear seats, limited-slip differential in transmission , spoiler on rear decklid.

engine design

the g20 powered sr20de inline 4-cylinder. transversely mounted dual overhead cam naturally aspirated reciprocating internal combustion engine. displacement 2.0 litre (1998 cc) square (bore × stroke: 86.0 × 86.0 mm). engine shared us-spec nissan sentra/nissan 200sx se-r, nissan nx2000, , host of non-us nissan vehicles. particular version used in g20 produced 140 hp (100 kw) crank in @ first, , 145 hp (108 kw) in 00+ editions (116 126 whp; stock range) , 132 lb·ft (179 n·m) or 136 lb·ft (184 n·m) torque (111 120 wft·lbf; stock range). these engines high-revving redline of 7500 rpm 1991 through 1996 models, 6950 rpm 1999 model, , 6750 rpm 2000-2002 models. due sr20de engine s flexibility, reliability, fuel economy , high power-handling capabilities, low buy-in cost, pre-owned nx2000, se-r powered sentras/200sxs , g20s have become popular , prominent in tuner or import scene subculture.

there 3 major variants of sr20de used in g20. first, used july 1990 december 1993, highport, in injectors , fuel rail located above intake plenum. in january 1994, due tightening emissions restrictions, nissan switched lowport design, in injectors , fuel rail switched places intake plenum. design featured milder intake camshaft. (switching out highport intake cam popular upgrade gain more power.) design used 1994 1996 , again in 1998. in 1999 nissan replaced valvetrain roller-rocker arm lifter design in place of hydraulic rocker arm used, kept lowport intake design; many performance parts not interchangeable between roller-rocker , highport/lowport engines, notably camshafts.

transmission

the g20 featured either 5-speed manual transmission or optional 4-speed automatic. front wheel drive transmissions other sr-powered cars can used few modifications. stock transmission other sr20 transmissions upgraded various modifications in order handle more power. common manual transmission modifications include cryo treating, shot peening, transmission case welding, aftermarket limited slip differential, aftermarket axles, , upgraded clutches. common automatic transmission modifications include built valve bodies, aftermarket torque converters, automatic transmission fluid (atf) coolers, additional atf filters, , aftermarket tcus. higher rated transmission swaps front-wheel drive vq or qr25de powered cars such 2002–2006 nissan sentra se-r spec-v have been performed.

equipment

the g20 badge-engineered version of nissan primera, because infiniti pitched premium brand, featured high level of equipment compared european , japanese relatives. engine available 2.0 litre sr20de inline 4-cylinder; in europe top-of-the-line engine primera lineup. 5-speed manual , 4-speed automatic transmissions both available, 5-speed being praised 1 of best in business. power windows, power locks, power mirrors, air conditioning, four-wheel disc brakes abs, alloy wheels, bose stereo, theft-deterrent system, cruise control, floor mats, , leather-wrapped steering wheel , gearshift knob standard. heated mirrors, leather seats , power moonroof common options, , later offered in package included power seats , keyless entry. later models featured dual front airbags. standard trim called luxury. 2 major trim package upgrades offered: touring, badged g20t, available model years 1994 1996 , 1999 2001, , sport (with no badge modification) offered during model year 2002. these packages featured limited-slip differential in transmission, sportier, more highly bolstered front bucket seats , fold-down rear seats, all-black leather interior, fog lamps, , spoiler on rear decklid. details of these trims varied year year.

p10 model refresh changes

introduced @ 1993 new york auto show, main changes p10 came midyear refresh in april 1993 (model year 1993.5), when dual airbags replaced motorized seatbelts, leather interiors came standard power front seats, matte-black side moldings replaced body-colored ones, refrigerant converted r12 r134a, audio system upgraded 6 speakers cd player instead of previously-standard cassette deck, , other new options such remote keyless entry added. in february 1994, 1994 model year given new larger chrome-plated grille , door handles, lowport engine (replacing original highport sr20de, in intake plenum below fuel injectors , fuel rail), change in vehicle s self-diagnostic system obd-ii, , larger 195/65r14 tires. touring models, introduced in february 1994, featured limited-slip differential in transmission; 195/65r14 yokohama tires, sportier, more highly bolstered black leather front bucket seats , fold-down rear seats; fog lights; , spoiler on rear decklid.

the g20 temporarily discontinued after 1996 model year, leaving i30 infiniti s lowest-priced car 1997 & 1998 model years.