The
GA16DE is a 1.6 L (1597 cc) engine produced from November 1990 through 1999. All GA16DEs have 16 valves and
DOHC heads. There are two versions, the
NVCS (VTC), which produced 115 hp (85 kW) @6000 rpm and 110 ft·lbf (146 Nm) @4000 rpm and a non-NVCS version (European-spec) which made 102 hp (76 kW). Additionally, 2 versions of the North American NVCS version exist. Earlier motors used pistons with 2 compression rings and 1 oil ring and put out 5 less horsepower, while later GA16DE's have a single compression ring and a single oil ring. The GA16DE shares much of its block and rotating assembly with its predecessor, the GA16i. Some engines have siamesed exhaust manifolds, while others keep the exhausts separated until the catalytic converter. Earlier ECUs contained the fuel & ignition maps on a discrete ROM IC, making retuning relatively easy, later ECUs buried the maps on a larger more integrated microcontroller's firmware, making retuning require the use of a daughterboard.
fuente:
http://en.wikipedia.org/wiki/Nissan_GA_engine