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1989–1994 Nissan Skyline GT-R Radiator & Cooling FAQ's

Please read our FAQs page to find out more.

What cooling mods most help a tuned RB26?

A higher‑efficiency radiator, sealed shrouds/under‑trays, quality oil cooler, and ducting stabilize temps during hot laps or summer driving.

Any tips for bleeding the R32 cooling system?

Elevate the nose, open bleed points, and run the heater to purge air. Recheck after heat cycles—air pockets can spike temps and stress seals.

Do I need an oil cooler for HPDE?

Sustained high RPM and boost raise oil temps. A thermostatic oil cooler with proper ducting keeps viscosity in range and protects bearings.