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How do I drive the Acura NSX GT3 in iRacing?

By Shane Lowry · updated 2026-09-28

The short answer

Treat it as a forgiving endurance car rather than a delicate prototype. It is a twin-turbo V6 with a sequential gearbox, so shifts need no clutch and the downshift protection will simply refuse a gear that is too fast for the engine — brake hard, then click down. Load the baseline or the track-specific iRacing Setup, then focus on smooth laps and how the tyres wear over a stint.

What the car is

The NSX GT3 is a good place to land: a twin-turbocharged V6 with double wishbone front and multilink rear suspension. It is forgiving, but do not mistake that for slow.

Gearbox and setup habits

The gearbox is sequential, so no clutch is needed in either direction — pull the paddle and go. The downshift protection will ignore a command that is too much for the gear, so brake hard and then click down rather than fighting it.

Do not overthink the setup. The car loads the iRacing Baseline automatically and there are pre-built setups for each track in the garage. Pick the right one and learn the line.

Where the time actually is

Smooth, consistent laps and understanding how the tyres wear across a full fuel run will find you more time than a click will.

That part is track- and driver-specific, so it is worth a proper conversation rather than a guess.

Managing peak grip on the current tyre model across a full fuel run is track-specific. Ask a coach rather than copying a setup from a forum.

Where this comes from: this answer is drawn from section 40 of the GT3: The Endurance Sweetheart — part of the BustaWrench Guide, 57 plain-English sim racing and setup lessons.

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