McLaren Overhauls Norris’ Power Unit to Tackle Fuel System Glitch Ahead of Singapore

McLaren’s technical team has rolled out a series of peripheral modifications to Lando Norris’ Mercedes‑powered unit in a bid to eradicate a fuel‑system fault that cost the team a significant amount of time during the opening laps of the Singapore Grand Prix. Per Motorsport.com, the changes involve adjustments to the fuel pump, throttle body and associated plumbing, aiming to improve reliability and prevent the sudden loss of power that saw Norris drop from the front of the field to the back of the pack.

The Singapore race, held on the island’s notoriously hot and humid circuit, exposed the fragility of the power unit’s fuel delivery system. Norris was forced to retire after a sudden drop in power, which the team later identified as a fault in the fuel pressure regulator. The team’s engineers have now re‑engineered the peripheral components to ensure a smoother fuel flow and to guard against similar failures in the next round at the Marina Bay Street Circuit.

While the core power unit remains a Mercedes engine, McLaren’s strategy is to fine‑tune the peripheral parts that interact with it. The adjustments are expected to reduce the risk of a repeat incident and to provide Norris with a more consistent performance. The team has also indicated that they will monitor the changes closely during the practice sessions in Singapore to confirm the effectiveness of the fixes before the race weekend.

For Indian fans, the Singapore Grand Prix will be broadcast live on FanCode at 5:00 PM IST, with the race starting at 7:00 PM IST. McLaren’s focus on reliability could be a game‑changer for Norris, who is looking to climb the championship standings. Keep an eye on the team’s performance in the first practice session, as it will reveal whether the new fuel system tweaks hold up under race‑day conditions.

Source: Motorsport.com