Acura GT3

Know everything about iRacing's Acura GT3 including technical specs, braking tips and more.

Acura GT3 - GT3 race car

Image © iRacing.com Motorsport Simulations

Chassis

Weight 2910lbs
Drive RWD

Power

Engine 3.5 Liters
Power 520bhp
Torque 457lb-ft

Brakes

Type Manual Bias
Pad Compounds 3 Compounds
Electronics DSC Available

Bias Range

Adjustable

ABS

DSC Available

Downforce

High

Setup

Advanced

How the Acura GT3 Handles Braking

The Acura NSX GT3 Evo features a sophisticated braking system built around adjustable master cylinders for both front and rear axles, allowing precise control over brake bias distribution. The car offers three brake pad compounds—Low, Medium, and High—that trade modulation for raw stopping power, with higher compounds increasing effectiveness but reducing feel. The 12-position DSC system provides remarkable flexibility, with positions 2-7 optimized for dry conditions and 8-12 for wet weather, though higher intervention levels can extend braking distances if set too aggressively for available grip.

Brake bias setup requires careful consideration of the car's aerodynamic platform, as the NSX performs best with relatively low rake. When rear ride height increases during heavy braking—particularly problematic if you're chasing maximum downforce targets—you'll experience both a forward balance shift and overall downforce loss, creating instability. This makes brake bias tuning inseparable from suspension setup, especially when adjusting front camber, which improves mid-corner grip but reduces braking performance and necessitates rearward bias compensation.

Driver technique centers on managing weight transfer through damper tuning. Higher rear low-speed rebound damping can slow the car's pitch rate under braking, increasing stability and mechanical understeer at corner entry. The differential preload also plays a crucial role during the brake-to-throttle transition, with increased preload smoothing the changeover and improving entry stability, though at the cost of sharper on-throttle oversteer.

Grounded in official iRacing manual data
Practice in the App

Stop Guessing, Start Improving

Many drivers slam the brakes with all their strength, but the fastest modulate pressure, use the brake to rotate the car, and exit as fast as possible. Train that skill here.

Train Anywhere, Anytime

Browser-based training works with any racing pedals or controllers. Fanatec, Thrustmaster, Logitech, Simucube — no installation required.

Pro-Designed Exercises

Access exercises created by professional sim racers like Suellio Almeida. Learn the exact braking patterns used by the fastest drivers.

Import Acura GT3 Telemetry

Drop your Garage61 lap CSV and extract braking data for every corner. Generate personalized practice exercises based on YOUR telemetry, not generic patterns.

Track Your Progress

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And There's Much More

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3 Essential Setup Tips

Tip 1

Brake Bias

Brake bias controls front/rear brake force distribution. Start with 56-58% front for most cars. Engine placement matters: front-engine cars need more front bias (58-62%), mid-engine cars run balanced (54-58%), rear-engine cars need less (50-54%). Understeering under braking? Add 1-2% front bias. Rear feels loose in braking zones? Reduce front bias by 1-2%.

Tip 2

Know Your Car

Check if your car has ABS, traction control, or brake mapping. ABS allows later braking but can increase stopping distance—adjust activation threshold in setup. High-downforce cars brake later and harder at speed but lose grip quickly as downforce bleeds off. Low-downforce cars require earlier, progressive braking with more trail-braking to rotate.

Tip 3

Quick Fixes

Locking fronts frequently? Reduce front bias 1-2% or brake earlier with gradual pressure. Car won't turn in under braking? Increase front bias 1% and practice trail-braking deeper into corners. Rear unstable in braking zones? Reduce rear bias or use smoother pedal release.

Master Your Braking

Common questions about braking in this car. Practice these techniques in our free app.

What's the best brake bias for the Acura GT3?

Most cars work well starting with 56-58% front bias. Adjust based on behavior: if you're locking fronts frequently, reduce front bias by 1-2%. If the rear feels unstable under braking, increase front bias. Engine placement matters too—front-engine cars typically need more front bias (58-62%), while mid/rear-engine cars run more balanced (54-58%). Always adjust in small increments and test.

Does the Acura GT3 have ABS or traction control?

Check your car's setup screen for available driver aids. Cars with ABS allow later, more aggressive braking but may increase stopping distances. If ABS is available, you can adjust its activation threshold in setup—higher thresholds give more control but require smoother inputs. Cars without ABS require progressive brake application to avoid lockups. Practice threshold braking in our app to develop the muscle memory for both scenarios.

Why do my brakes lock up in the Acura GT3?

Brake lockups typically happen from: (1) Too much front brake bias—reduce by 1-2%. (2) Too aggressive initial brake application—practice progressive pressure buildup. (3) Trail-braking too deep into the corner—release brake pressure earlier. (4) Cold tires or brakes—take an extra warm-up lap. (5) Downforce loss at lower speeds—brake earlier and lighter through slow corners. Use our Hold Pressure and Threshold Braking exercises to build the sensitivity needed to stay just below the lockup point.

How late can I brake in the Acura GT3 compared to similar cars?

Braking points depend on: (1) Downforce level—high-downforce cars brake 50-100ft later than low-downforce cars. (2) Weight—lighter cars brake later but have less grip margin. (3) Brake size and cooling—larger brakes handle repeated heavy braking better. (4) ABS availability—ABS cars can brake slightly later. Start conservative and move your braking point later by 5-10ft each lap until you find the limit. The key is consistency, not just maximum lateness.

How can I practice braking in the Acura GT3?

Braking Lab offers free web-based exercises that work with any wheel/pedal setup—no download needed. Try Hold Pressure to develop steady brake application, Trail Braking to master corner entry, and Threshold Braking to find the lockup limit safely. Each exercise gives instant feedback and tracks your progress. Practice 10 minutes before your race session to build muscle memory that translates directly to the track.

Ready to Master the Acura GT3?

Put this knowledge into practice with Braking Lab's interactive brake training exercises. Import your telemetry and get personalized feedback.