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2023–2025 Nissan Z Radiator & Cooling FAQ's

Please read our FAQs page to find out more.

What cooling mods most help a tuned VR30?

A higher‑efficiency radiator, upgraded intercoolers, sealed shrouds/under‑trays, and a thermostatic oil cooler stabilize temps on hot days and track sessions.

Any tips for bleeding the Z cooling system?

Elevate the nose, use 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.