Like Adrian Valles in this morning's race one qualifying, Frenchman Salignon secured his maiden pole in the series after lapping the soaking Donington Park track in 1:36.630.
KTR driver Jaap Van Lagen will start in the top three for the second successive race
Jaap Van Lagen, who was 0.393 seconds slower, will start on his second succsessive front-row start qualifying ahead of Championship contender Tristan Gommendy and Monaco race winner Christian Montanari, who will start fourth.
Danilo Dirani, making his World series by Renault debut with Victory Engineering, impressed in sixth place.
Both groups of cars endured red flags, with the most bizarre incident taking place in the second session: Valles had gone off the circuit at Goddards after touching Alx Danielsson, and despite damaged suspension, got back onto the track.
However, the red flag was waved after Valles dragged some television electricity cables back onto the circuit with him.
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