The #6 Acura ARX-05 of reigning IMSA champions Montoya and Dane Cameron lapped the 2.358-mile road course in 1min13.057sec to beat the #31 Cadillac by 0.236sec, while Ricky Taylor was just 0.009sec further back in the second Acura.
A late improvement from Harry Tincknell saw him beat Mazda teammate Oliver Jarvis by 0.02sec to land P4, albeit over half a second off the lead Acura.
Meanwhile the two JDC-Miller Motorsports Cadillacs sandwiched the similar car of championship leader Renger van der Zande in the Wayne Taylor Racing entry.
In GT Le Mans, which comprises just four cars following Porsche’s withdrawal, Antonio Garcia was 0.3sec faster than Corvette Racing teammate Tommy Milner. The two BMW M8s were 0.84 and 1.28sec were off the pace.
In fact, Bruno Spengler’s M8 was less than 1sec faster than the Turner Motorsports BMW M6 of Bill Auberlen which topped GT Daytona.
Behind Auberlen by a mere 0.056sec was Jack Hawksworth in the faster of the two AIM Vasser Sullivan Lexus RC Fs, with Alvaro Parente third in the Meyer Shank Racing Acura ahead of Pat Long’s Wright Motorsports Porsche 911 GT3R and Lawson Aschenbach in the Riley Motorsports Mercedes AMG GT3.
The #30 Audi R8 of Hardpoint Racing, driven by Rob Ferriol and Spencer Pumpelly, did not take part in the session due to a technical problem.
Tomorrow’s practice session begins at 10.55am local (Eastern) time, with qualifying not being held until Sunday (raceday) morning.
|1||6||Dane Cameron||DPi||Acura DPi||1'13.057|
|2||31||Pipo Derani||DPi||Cadillac DPi||1'13.293||0.236|
|3||7||Ricky Taylor||DPi||Acura DPi||1'13.302||0.245|
|4||55||Harry Tincknell||DPi||Mazda DPi||1'13.598||0.541|
|5||77||Tristan Nunez||DPi||Mazda DPi||1'13.618||0.561|
|6||5||Sébastien Bourdais||DPi||Cadillac DPi||1'13.739||0.682|
|7||10||Ryan Briscoe||DPi||Cadillac DPi||1'13.950||0.893|
|8||85||Gabriel Aubry||DPi||Cadillac DPi||1'14.561||1.504|
|9||3||Jordan Taylor||GTLM||Corvette C8.R||1'19.690||6.633|
|10||4||Tommy Milner||GTLM||Corvette C8.R||1'19.991||6.934|
|11||24||John Edwards||GTLM||BMW M8 GTE||1'20.527||7.470|
|12||25||Connor de Phillippi||GTLM||BMW M8 GTE||1'20.966||7.909|
|13||96||Robby Foley||GTD||BMW M6 GT3||1'21.861||8.804|
|14||14||Aaron Telitz||GTD||Lexus RC F GT3||1'21.917||8.860|
|15||57||Mikhail Goikhberg||GTD||Acura NSX GT3||1'21.993||8.936|
|16||16||Patrick Long||GTD||Porsche 911 GT3 R||1'22.224||9.167|
|17||74||Lawson Aschenbach||GTD||Mercedes-AMG GT3||1'22.226||9.169|
|18||86||Matt McMurry||GTD||Acura NSX GT3||1'22.271||9.214|
|19||12||Townsend Bell||GTD||Lexus RC F GT3||1'22.278||9.221|
|20||76||Paul Holton||GTD||McLaren 720S GT3||1'22.315||9.258|
|21||44||John Potter||GTD||Lamborghini Huracan GT3||1'22.325||9.268|
|22||23||Roman De Angelis||GTD||Aston Martin Vantage GT3||1'23.038||9.981|
|23||22||Marc Miller||GTD||Acura NSX GT3||1'23.284||10.227|
|24||30||Spencer Pumpelly||GTD||Audi R8 LMS GT3||0.000|
|View full results|