Gaming

How to PURIST in Forza Horizon 5 (how to build/tune)

📚 Main Topics

Definition of a Purist Build
- No engine swaps, drivetrain swaps, or Forza arrow.
Understanding the Performance Index (PI) System
- How the PI system rates vehicle performance based on AI driving on base game tracks.
- Importance of stock tuning and its implications on performance.
Key Upgrades for Building a Car
- TiresImportance of tire selection based on class and handling.
- Weight ReductionEnhances drivability and is cost-effective in terms of PI.
- Anti-Roll BarsCrucial for handling and stability.
Tire Compounds and Their Applications
- Overview of different tire types (e.g., street, drag, rally) and their suitability for various classes.
Suspension and Handling
- The role of suspension types and how they affect car balance and handling.
- Importance of front tire width and roll cages for cars lacking downforce.
Power Optimization
- Upgrades that help maximize horsepower while hiding power from the PI system.
- The significance of cams, transmission types, and superchargers.
Tuning Sliders
- Adjusting tire pressures, camber, toe, anti-roll bars, spring rates, ride height, and damping for optimal performance.
- Brake settings and their impact on handling.
Differential Settings
- How to tune the differential for better traction and handling based on drive type (rear, front, all-wheel drive).

✨ Key Takeaways

Understanding the PI SystemKnowing how the PI system evaluates cars can help in making strategic upgrades that enhance performance without exceeding class limits.
Tire Selection is CrucialChoosing the right tires based on the car's class and intended use can significantly impact performance.
Balance is KeyAchieving a balance between power, handling, and weight is essential for a successful build.
Tuning is IterativeMost tuning settings can be adjusted based on telemetry data, allowing for fine-tuning to suit personal driving styles.

🧠 Lessons

Experimentation is ImportantDon't hesitate to try different setups and adjustments to find what works best for your driving style.
Focus on Core UpgradesPrioritize upgrades that provide the most significant performance benefits, such as tires and weight reduction.
Stay InformedKeep learning about the game mechanics and community strategies to improve your builds and racing performance.

For further questions or live discussions, viewers are encouraged to engage on Twitch at twitch.tv/hiton228.

Transcript excerpt

0:00 Welcome to Forza Horizon 5, where the online racing is home to a wide variety of wacky builds. Today, I'm going to share how to build the [Music] purest. But what is a purist? There are many interpretations of a purist build. The definition I'll be going with is no engine swaps, no drivetrain swaps, and no Forza arrow.

0:31 Before we can build a purest car, we have to understand how to build. And that involves understanding the performance index system. The PI system is what grades a vehicle's performance. No one really understands it entirely, but the rough theory is that the PI system rates a car by having an AI drive the car on all of base game asphalt tracks with a stock tune and automatic transmission. Since the PI system drives on all the base game tracks, tracks introduced after the game's launch are not accounted for. As an example, the tracks

1:01 introduced in the Rally DLC are tight and technical, so cars with low-end traction dominate easily. Same goes for the Hot Wheels DLC and the handful of sprints added to the game. Those all favor top end and high downforce due to their long and wide straights. The PI system judging a stock tune means in theory, the more adjustable tuning parts we apply, the greater the potential for free pace. All cars in Forza have a preset shift RPM as well as a set shift time. This shift RPM is typically short of what would be considered an optimal shift

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