The standard transmission was a 5-speed manual, derived from the one used in the Mazda 929/Luce (also rear-wheel drive). This tuning resulted in a lower peak power of 78.5 kW (105 bhp) at 6500 rpm. An MX-5 with the optional automatic transmission had its 1.6L engine tuned to develop peak torque at lower rpm's (136 Nm, 100 lbf-ft at 4000 rpm) to better mate with the automatic transmission gearing and torque requirements. This engine, codenamed B6ZE(RS), was specifically designed for the MX-5 and featured a lightened crankshaft, flywheel, and aluminum sump with cooling fins. The engine employs an electronic fuel injection system using a vane-type air flow meter and an electronic ignition system with a camshaft angle sensor instead of a distributor. The original MX-5, with standard manual transmission, came with a 1.6 L (98 cu in) DOHC inline four-cylinder engine, producing 86 kW (115 bhp) at 6,500 rpm, and 136 N⋅m (100 lbf⋅ft) of torque at 5,500 rpm. This example has been modified with the addition of a GReddy TD04 ( Mitsubishi) turbocharger kit. The base model came with stamped steel wheels from the then-current 323/Protege.ġ990 Mazda MX-5 1600cc DOHC 4-cylinder engine. Four-wheel disc brakes, ventilated at the front, were behind alloy wheels with 185/60HR14 radial tires. Suspension was an independent double wishbone on all four wheels, with an anti-roll bar at the front and rear. Without options, the NA weighed only 980 kg (2,160 lb). The body shell of the NA was all-steel with a lightweight aluminum hood. The exterior dimensions and the engine displacement were also in compliance with Japanese Government compact car regulation. Instead, the Mazda MX-5 was sold as the Eunos Roadster, and was joined by the MX-3/AZ-3/Eunos Presso (based on Japanese Mazda dealerships). In Japan, the car was not badged as a Mazda, as the company was in the process of launching different marques for deluxe models, similar to Nissan's Infiniti, Honda's Acura and Toyota's Lexus. Demand initially outstripped production, fueled by enthusiastic press reviews. An optional hardtop was made available at the same time, in sheet moulding compound (SMC). The MX-5, with production code NA, was made available for delivery to buyers worldwide in the following dates: May 1989 (as a 1990 model) in the US and Canada Septemin Japan and 1990 in Europe. The MX-5 was unveiled at the Chicago Auto Show on February 10, 1989, with a price tag of US$14,000 (equivalent to $33,051 in 2022). Since its debut, the MX-5 has won numerous automotive awards and has become the world's best selling sports car. Inspired by the post-war era British sports cars, the MX-5 rejuvenated interest in roadsters after the demise of cars such as the MG B and Triumph Spitfire. The Mazda MX-5 (NA) (sold in Japan as the Eunos Roadster ( ユーノス・ロードスター, Yūnosu Rōdosutā) and in North America as the Mazda MX-5 Miata) is the first generation of the Mazda MX-5 manufactured from 1989 to 1997. 4-speed Mazda Jatco N4AEL (Nissan 4N71B) automatic.4-speed Mazda Jatco N4AHL (Nissan 4N71B) automatic.
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