Nissan Skyline R31. Promotional video.

Description

The R31 Skyline of 1986 was a natural evolution on the R30 shape, and also this one was loosely based on the Laurel platform (C32). The design was slightly larger and squarer than previous Skylines. It was available as a Sedan, Hardtop sedan, Coupe and station wagon. Affectionately known as the "Seventhsu" or simply "7th Sukairain" by owners, due to it being the 7th generation Skyline. The R31 Skyline introduced many new technologies and features. The HR31 was the first Skyline to be equipped with the new RB-series of engines. The R31 RB engines are often referred to as "Red Top" engines because of the red cam covers. There were three variants. The earliest series of DOHC RB engines used the NICS (Nissan Induction Control System) injection system with 12 very small intake runners, and a butterfly system to divide the intake ports in half for better low RPM performance. Later versions used ECCS (Electronically Concentrated Control System) engine management, discarded the twelve tiny runners for six much larger ones (though they retained twelve ports on the head, so there was a splitter plate), and received a slightly larger turbocharger. Nissan's RD28, a 2.8 straight-6 engine, featured for a diesel option. Another technological first for the R31 was the introduction of Nissan's proprietary 4-wheel steering system, dubbed HICAS (High Capacity Active Steering). The R31 series were also the only models in the Skyline family to feature a 4-door hardtop variation. These models <b>...</b>

Keywords

nissan, skyline, R31

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