Winning and Losing Races in the Pits

Races can be won or lost in the pits through the timing of the stops, through the pit crew�s performance, or through malfunction. The timing of the stops is decided by the race strategists; the time taken for the actual stop is determined by the amount of fuel delivered and the efficiency of the pit crew. The most frequent cause of a pit stop delay is an equipment problem.

Timing of stops
Before the race, the team strategists will have worked out an ideal plan of action. This plan is based on the characteristics of the track, the car�s grid position and the grid position of the main. But once the race gets underway, the strategy can be fine-tuned by tactics.
If a rival holds up a driver for example, it may be advantageous to pit early and hope to set a strong enough pace immediately after the stop to pass the rival when he makes his stop. On the other hand, being able to run longer than your rival before pitting may find you the winning margin. In this scenario, your driver may be able to put in the critical fast laps after the rival has pitted; these laps could enable your man to rejoin ahead after he makes his own pit stop.
Changeable weather during the race brings all sorts of opportunities for winning pit tactics too.

Crew performance
Getting the whole crew to put in an error-free performance is the first prerequisite here. Under the most extreme pressure, the wheel guys have to ensure they don�t cross-thread a wheel nut and that the correct tyres goes on the correct side of the car; the jack man mustn�t miscue his lift; and so on. Although all crew members must perform at their peak, how quickly the refuellers can attach the hose, refuel, and disconnect is really the critical path to how quick the stop is. The fuel goes in at a pre-determined rate and the wheel changing takes up only a fraction of the time of the refuelling. So, assuming nothing goes wrong, it all hangs on how quickly those two refuellers can do their stuff. In a closely matched race, the time they take can be the difference between winning and losing.
Stalling due to driver error at the pit stops is now largely a thing of the past as they use their launch control electronics to get them underway.


Equipment malfunction
Typical malfunctions that have cost teams races include sticking wheel nuts �where the expansion of the metal due to heat causes the nuts to seize on their splines � and problematic refuelling rigs. The standard fuel rigs have proved notoriously temperamental and have frequently failed to deliver the programmed amount of fuel, for example. For this reason, teams usually have the other car�s rig on stand-by just in case, with a third refueller manning it, ready for action.
Faulty connections on the steering wheel controlling the launch control can also cause the car to stall. This lost Jacques Villeneuve over a lap in the 2003 Austrian Grand Prix and lost him what had been a real chance of finishing in the points.