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1989–1994 Nissan Skyline GT-R Engine Components FAQ's

Please read our FAQs page to find out more.

What reliability items should I address before raising boost?

Timing belt/water pump, cam/crank seals, hoses, coilpacks/plugs, and a compression/leakdown test. Inspect oil pump engagement and front main hardware on higher‑rev builds.

How do I improve RB26 oil control for track days?

Baffled sump, head oil restrictors, quality oil cooler, and careful breather setup reduce aeration and starvation during long high‑G turns.

Are metal turbine wheels necessary?

Stock ceramic turbine wheels are sensitive to high heat/boost. For sustained higher boost, upgrade to steel‑wheel or N1‑style turbos with matching tuning and fueling.