The Rocket Sports Racing duo of Bruno Junqueira and Chris Cumming were fastest during Friday’s second practice session at Lime Rock Park.

Junqueira, the 2002 Indy 500 polesitter, posted a lap of 0:48.919 to lead Starworks Motorsport’s Renger van der Zande whose 0:48.953 was marginally faster than the 0:49.055 managed by Tom Kimber-Smith in the PR1/Mathiasen entry. Colin Braun, who led FP1 in his CORE autosport PC, was fourth with a 0:49.076.

Magnus Racing’s Andy Lally improved from third in FP1 to first in FP2 with Porsche 911 GT America GTD entry. His 0:53.536 was a full 0.560 seconds clear of Christopher Haase’s Paul Miller Racing Audi R8 LMS (0:54.096), 0.656 ahead of Kuno Wittmer’s TRG-AMR Aston Martin V12 Vantage (0:54.192).

16 cars partook in FP2; the 17th entry for the No. 97 Turner Motorsport BMW Z4 is currently being repaired after a crash in FP1.

Qualifying for IMSA’s Northeast Grand Prix is up next at 5:15 p.m. ET