Forged rims bring maximum strength-to-weight and excellent crack resistance after curbing, often with superior heat paths from rotors. Flow-formed options balance budget and performance with respectable mass. Cast wheels suit street duty but struggle under repeated peaks. Whichever you choose, inspect often, torque properly, and avoid spacers unless hub-centric and proven.
Luxury EV torque punishes soft compounds if widths are conservative. Upsize contact patch within fender clearance, then pick a compound that survives heat cycles without chunking. Slightly taller sidewalls can add compliance, protecting rims and harmonizing springs. Track notes plus pyrometer readings will validate choices more honestly than marketing promises.
Square setups simplify rotation and stabilize balance in long sessions, helpful when power delivery is rear-biased by software. Staggered can add traction but traps you with fewer rotation options. If you choose staggered, monitor rear shoulder temps closely, schedule rotations aggressively, and budget for accelerated wear aligned with your event calendar.
Aim inlets where pressure is high, route with gentle bends, and secure with heat-resistant liners. If front-end space is tight, consider backing plates with directional vanes. Validate with temperature paints on rotor faces and hub sensors; watch reductions lap to lap before finalizing vents or wheel arch exits that affect stability.
Open spokes and internal channels can accelerate airflow over calipers and rotors, but must maintain stiffness against lateral loads. Evaluate with infrared cameras after hard stops and cooldown laps. The goal is uniform temperatures across rings and hats, not the coldest possible readings that mask uneven pad application or deflection.
Flat floors reduce drag but can starve brakes and hubs of scavenging flow. Subtle NACA profiles and extractor vents restore balance without booming noise. Coordinate with battery thermal limits and inverter cooling strategies so late-session push laps remain available. Share logs; we can triangulate airflow updates with your temperature deltas and lap trace shifts.
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