Verified Data(June 9, 2026)
Patch:v1.0
Coverage:45 Entities
Database Updated:June 2026
Source:Game Files + Community Testing
Engine version:v1.0
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Preliminary / Pre-Release

Mechanics and performance indices for unreleased titles are community-calibrated estimates and subject to patch changes upon official launch.

โš ๏ธ MAY 2026 METRICS WARNING:Choosing high-displacement swaps (like V8 or EV motor swaps) adds significant weight to the front chassis, which increases simulated launch acceleration but degrades handling indices by up to 10% on tight touge tracks.
Simulated Performance Index
950S2
Shift from S2 950
Performance Index Gearing
Speed Limit Index9 / 10
Lateral Cornering Grip9.6 / 10
Drivetrain Acceleration8.9 / 10
Estimated Weight2,900 LBS
Power/Weight Index0.297 HP/LB
Interactive Tool Reference

PI ROI Calculator .

Handling & Power Trade-offs

Our calculator evaluates base handling characteristics against PI upgrade headroom to help identify efficient chassis investments for street and sprint races.

Dataset Status
Preliminary Model

How to Use This Tool

Select your car class and target PI budget. The calculator balances drivetrain output and tire grip to project optimal transmission and suspension priorities.

Formulas & Limitations

Calculations apply established Forza franchise friction curves. Official values will be updated following title updates and patch notes.

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