Forza Horizon 6 features a very interesting vehicle modification mechanic, so some players might think, "How you modify a car in real life is how you modify it in the game." This idea is reasonable, but completely wrong.
The core logic of vehicle modification in the game is fundamentally different from the real world - because this is a racing game that emphasizes Meta and Performance Index (PI) optimization. However, once you understand how the game evaluates vehicle performance, you can easily build super-powerful cars.
In other words, within a limited PI budget, upgrading parts correctly allows you to create a racing car that is competitive in its class.
Basic Concepts
In Forza Horizon 6, a vehicle's performance is primarily determined by two factors: PI and Class.
PI is a numerical rating for all vehicles in the game, ranging from 100 to 998. FH 6 classifies cars into 7 classes based on this value:
- D Class: PI 100-500
- C Class: PI 501-600
- B Class: PI 601-700
- A Class: PI 701-800
- S1 Class: PI 801-900
- S2 Class: PI 901-998
- R Class: Maximum 998
After reading the above, do you want to upgrade your vehicle's class through modifications? Don't do that.
Why? Consider this example: If you obtain an A-class car, you'd naturally want to upgrade it to its maximum potential.
But if your modifications turn it into an R-class car, then here's the problem: a car that barely makes it into R-class will only lose to cars that are already in R-class from the factory.
The correct approach is to keep your vehicle's class within 1-2 levels of its original class when modifying it. For example, if you want to modify an S1-class car, it's best to stick with S1 or S2 after modification, and avoid going for R-class.
Choosing Tires
After understanding the basic concepts of car modification, you need to prepare your tires first. Choosing good tires is the first step to successfully modifying your vehicle.
However, this is where FH6's most mind-bending aspect comes in. If you choose tires using real-world logic, you might suffer a crushing defeat.
Tire Compound
First, let's talk about Tire Compound selection. In reality, Slick Tires are only effective on dry tracks, and Rally Tires are only effective on mud. Racers usually choose tires based on this rule.
But in FH6, the situation is completely different. For example, Rally Tires are suitable for almost all S1-class road races; Drag Tires are suitable for most four-wheel-drive road cars in the game; Semi-slick Tires are suitable for A-class and below road races.
In short, if you have limited credits, you can directly choose Rally Tires.
Tire Width
Next, let's talk about Tire Width. My advice is: widen the tires if possible. Wider tires give your car a larger contact patch, resulting in better grip and faster cornering speeds.
Drivetrain
Finally, there's the drivetrain, which largely depends on your personal preference and target level.
For example, RWD offers extremely high driving fun, and its top speed is usually faster than an AWD car with the same horsepower, but it's extremely prone to slipping and losing control, suitable for drift enthusiasts and lower-level road racing;
AWD is standard answer, offering fast acceleration, stability, and a high margin for error, suitable for almost all S1 level and above races, although its drifting feel isn't as good as RWD.
Modification Order
After dealing with the tires, you can officially begin modifying them.
However, in Forza Horizon 6, there's an optimal order for modifications. Some players immediately upgrade the turbo and engine upon entering the modification interface, trying to maximize horsepower, which is a complete misconception.
The correct order is: pave the road first, then reduce weight, and finally add power.
Step 1
In the modification list, some parts, while not directly and significantly improving performance, are keys to unlocking tuning features. You should prioritize installing these:
- Anti-roll Bars: Used to unlock Chassis Balance Tuning.
- Suspension: Such as Off-road Suspension or Race Suspension.
- Adjustable Wing and Adjustable Front Bumper: Allow you to modify Downforce in Tuning menu.
- Race Differential: Allows you to adjust Acceleration Lock and Deceleration Lock.
Step 2
Next is weight reduction, also known as Weight Reduction. This is the most important and cost-effective upgrade in the entire FH6, bar none.
Why is Weight Reduction so powerful? Because it simultaneously improves three key attributes of the car: acceleration, braking distance, and cornering agility.
Step 3
After completing the first two steps, if there's still PI to add, then consider increasing horsepower. There's a specific order to power upgrades:
- Upgrade Exhaust: This is the fastest way to increase Performance Intake (PI), and you must upgrade to racing-grade.
- Upgrade Intake: Used in conjunction with the exhaust system.
- Upgrade Ignition and Fuel System: Further improve combustion efficiency.
- Upgrade Camshaft: Suitable for high-revving tracks, but it sacrifices Low-end Torque; use with caution off-road.
- Upgrade Displacement: Adding Displacement is equivalent to adding Torque, but it consumes a huge amount of PI, making it generally not worthwhile in lower-level races (Class A and below).
After completing these steps, you'll usually have a good car. Many of these steps require credits, especially when acquiring Tire Compounds and adjusting Displacement.
However, acquiring credits in FH6 usually takes a significant amount of time. An even better approach is to directly buy Forza Horizon 6 Credits from EZG.com. Use promo code RACE for a 15% discount, and we offer 24/7 support.
In addition to these, you can also adjust ARBs, as they are the most effective tool for correcting understeer or oversteer when cornering.
