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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.
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 110 PS (81 kW; 108 hp) from 85 PS (63 kW; 84 hp), 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.
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 50 PS (37 kW) version was relatively low so that it was able to run on 90 RON petrol where available.
The MA10E was used in the Nissan Saurus Jr.
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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.
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 110 PS (81 kW; 108 hp) from 85 PS (63 kW; 84 hp), 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.
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 50 PS (37 kW) version was relatively low so that it was able to run on 90 RON petrol where available.
The MA10E was used in the Nissan Saurus Jr.