Nissan MA engine

The Nissan MA engine is a straight-4 SOHC 0.9 L, 1.0 L, or 1.2 L engine introduced in 1982 by Nissan, intended primarily for the K10 series Micra/March model. It shares design elements with the older E engine, such as 8-valve hemispherical cylinder head, but differs in that it uses an aluminium cylinder block. Unusually, the specified ignition timing for the MA10 running on the specified 90 RON gasoline was 2 degrees after top dead centre, reflecting the high flame speed in the compact combustion chambers.

MA09ERT The MA09ERT is a twin-charged design (possessing both a turbocharger and a supercharger), an unusual design, particularly for Japanese vehicles. It powered the March Superturbo, March R, and the March Superturbo R.

The "Nissan PLASMA" (Powerful & Economic, Light, Accurate, Silent, Mighty, Advanced) improved performance and response by adding a supercharger to the (already turbocharged) MA10ET engine, which is a four-cylinder water-cooled OHC engine with a V-type valve arrangement and hemispherical combustion chambers, with sequential fuel injection.

The supercharger improved the response and output in the low-rpm region (where turbochargers are typically less effective), and a new larger HT10 turbocharger aimed to improve output in the high-rpm region. An intercooler and an updated intake manifold were added, the latter having a much larger throttle body and improved fuel rail. The result was an increase in output to from , and a much broader torque range. Other changes included a reduction of engine capacity from 988 cc to 930 cc; this strengthened the engine by increasing the bore wall thickness by 1 mm, and allowed cars using it to enter sub-1300 cc competition classes not otherwise possible due to conversion factors applied to forced induction engines.

The first prototypes were installed in the March Superturbo R/March R (EK10FR type) in 1988; shortly thereafter the engine was installed in the March Superturbo.

The MA09ERT was the first twincharged engine available in Japan; series charging combines the increased low-speed torque of supercharging with the increased high-speed torque and power of turbocharging. The presence of the supercharger also minimizes the effects of turbo lag.

MA09ERT engine

Specifications Water-cooled inline-4, air-to-air intercooler Valve system: SOHC, 2 valves per cylinder Displacement: Bore and stroke: Maximum power: at 6500 rpm Maximum torque: at 5200 rpm Compression ratio: 7.7:1 Weight: Size (length × width × height): Specific fuel consumption (net): 255 g/(PS･h) at 1200 rpm

MA10S

The MA10S is an engine with an electronically controlled carburetor. It was used in the Be-1 and 1982–1992 Micra (K10) and Pao. It has a hemi-head and, unusually, the spark is fired after top dead centre because of the high flame speed in a compact engine with this head design. Compression in the version was relatively low so that it was able to run on 90 RON petrol where available.

Specification Water-cooled inline-4 Displacement: Bore and stroke: Compression ratio: 9.5:1 Maximum power (net): at 6000 rpm Maximum torque (net): at 3600 rpm 1-bbl carburettor

MA10E The MA10E was used in the Nissan Saurus Jr. Displacement: Maximum power: at 5600 rpm

MA10ET

The Nissan MA10ET powered the Figaro and K10 March Turbo. Displacement: Bore and stroke: Maximum power: at 6000 rpm Maximum torque: at 4400 rpm Compression ratio: 8.0:1 Fuel supply device: Nissan Motor ECCS Power resource(V-AH): 12-30

MA12S The MA12S is the designation for the larger engine, featuring an enlarged bore as well as stroke. It was used in the Nissan Micra K10. Displacement: Bore and stroke: Maximum power: at 5600 rpm Maximum torque: at 3600 rpm Compression ratio: 9.0:1

Nissan MA engine

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