Inventory of Nissan Skylines (Hakosuka, R30, R31, R32, R33, R34) Import GTR with JDM EXPO The GTSR in particular was introduced in 1987 as a special edition car with Group A specifications that was limited to 800 units The R31 series saw the first application of the Nissan RB inlinesix engine that continued production with subsequent Skyline generations The GTSR uses a two liter variant with a double overhead camshaft (DOHC) valvetrain and single turbocharger that The ultimate version of the R31 was the RBDETR powered HR31 GTSR Coupe of which 3 units were built to allow homologation for Group A Touring Car racing Introduced in late 1987, it had a reworked version of the normal RBDET with a much larger turbocharger on a tubular steel exhaust manifold, as well as a much larger frontmounted intercooler boosting It S 1987 Again A Fully Refreshed Gts R Speedhunters Gt r r34 skyline