2026 Formula 1 explained: all you need to know about the new race start procedure

The 2026 Formula 1 season represents the most comprehensive technical reset in decades, and the implications extend far beyond aerodynamics and power unit architecture. One of the most significant changes comes at the moment that matters most: the race start. The removal of the MGU-H (Motor Generator Unit – Heat) from the new power unit regulations has fundamentally altered how drivers must prepare their cars for the critical launch into Turn 1.

Understanding turbo lag in the new regulations

With this component now eliminated, the turbocharger relies entirely on exhaust gas energy to achieve the 100,000rpm necessary for full boost delivery. This creates turbo lag—the frustrating delay between throttle input and maximum power availability. Without the MGU-H's assistance, drivers must manually rev the engine to higher levels before the start, allowing exhaust gases sufficient time to spool the turbo to full speed. As one source notes, "The higher the engine is being revved, the faster the exhausts flow, and the faster the turbo spins."

The new five-second pre-start warning system

This window allows drivers to progressively build engine revs to the optimal target before the standard starting light sequence begins. The procedure essentially grants drivers time to manage the critical balance between engine revs and turbo spin-up, ensuring the turbocharger reaches full operating speed precisely as the lights extinguish. This precision is vital for optimal launch control and avoiding losing positions before the first corner.

Early season unpredictability

While the procedure was trialed successfully in pre-season testing, its real-world implementation remains uncertain. The FIA itself acknowledged that "with the introduction of such significant regulatory changes, there are collective learnings to be taken from pre-season testing and the initial rounds of the 2026 championship." Teams and drivers will require several races to fully master the new protocol, likely resulting in unusually chaotic starts during the opening rounds—potentially creating unexpected overtaking opportunities before drivers reach the first chicane.