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Discussion Starter · #24 ·
Emmel said Michelin is prepared to tackle the near-freezing temperatures forecasted for Saturday night into Sunday morning in this weekend’s race.



Forecasts currently call for a low of 35 degrees Fahrenheit (2 degrees Celsius).



“We don’t think there’s any significant challenges as far as the tires,” Emmel said. “Certainly the drivers will be challenged because tire warm up is going to be difficult.



“Teams will react to that by doing double stints and scrubbing tires to try to help them warm up quicker.



“More pressure in the tire helps get more heat in the tire quicker,” he explained. “As you can imagine, a little bit more pressure in the tire, you have smaller of a contact patch.



“That puts more energy into a smaller area, which actually helps heat the tire up quicker.”

The out-laps are going to be tricky and cold tires will certainly catch some drivers out,



They could take a little bit longer to warm up to as the drivers come out on cold tires from from pits. Certainly a lot of teams will opt to double stint when and where they can to to put drivers back out on hot tires, or maybe change two tires and not change the other two, to give them some heat in the tires as they exit pit lane and go through the the infield section of the course.



Michelin’s bigger concern for tires, notes Emmel, is mounting the tires, which can get problematic when it gets too cold.



“If the temperatures get down to freezing, we’ve put in some provisions in our mounting facility to make sure that there’s sufficient temperature while mounting the tires. That’s really where some of the temperature can get tricky for us. So we’ve enclosed some areas and warmed some areas to make sure that when the tires come out of the truck — through the middle of the night, it gets it’s like an assembly line through there with teams bringing us tires back, new tires going on — we’ve put provisions in to make sure that mountability is not an issue,” he said.



According to several drivers, it’s going to take most of a lap to warm the tires up enough so that they’re not sketchy, and up to three or four, depending on class and car, to get fully up to temperature. Not only are there likely to be several single-car incidents on out-laps as a result, but drivers will have to be quite aware of which cars around them may have just come out of the pits on cold tires.



“The difference of speed between cars that are on their out-laps and cars that are at speed is going to be huge,” explained No. 5 JDC-Miller Motorsports Cadillac driver Tristan Vautier. “I mean, even in the infield, a GTD [on warm tires] is going to be quicker than a DPi getting out of the pits with four sticker tires. So all in all those situations you’re going to be exposed and if you come up at speed in a DPi on an LMP3 or a GTD with a low-experience driver on cold tires, it’s going to be very difficult as well. So it’s going to be a lot of of tricky moments.”



Tire warmers are not permitted in IMSA.



 

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Discussion Starter · #31 ·




The best lap times of the entire event were set during the cold race.



Daytona Road Course (3.56 miles) Race Fastest Lap Times



DPi

Dallara-Cadillac V8 600hp 950kg (#01) _ 1:33.724



Oreca-Acura V6 Turbo 600hp 930kg (#10) _ 1:33.902



LMP2

Oreca 07-Gibson V8 580hp 940kg (#18) _ 1:35.532



LMP3

Ligier JSP320-Nissan V8 460hp 950kg (#74) _ 1:42.133



GTD combined

Porsche 911 GT3 R F6 500hp 1300kg (#2) _ 1:45.087



McLaren 720S GT3 V8 Turbo 500hp 1295kg (#70) _ 1:45.117



Lexus RC F GT3 V8 500hp 1345kg (#14) _ 1:45.120



Ferrari 488 GT3 V8 Turbo 500hp 1330kg (#47) _ 1:45.175



Mercedes-AMG GT3 V8 500hp 1350kg (#97) _ 1:45.379



Aston Martin Vantage GT3 V8 Turbo 500hp 1320kg (#44) _ 1:45.448



Lamborghini Huracan GT3 V10 500hp 1305kg (#19) _ 1:45.598



Acura NSX GT3 V6 Turbo 500hp 1295kg (#66) _ 1:45.902



Corvette C8R GTD V8 500hp 1335kg (#3) _ 1:46.073



BMW M4 GT3 I6 Turbo 500hp 1340kg (#25) _ 1:46.897



Weight does not include driver and fuel.






Latest BoP







DPi











LMP2




LMP3





GTD

Porsche





McLaren





Lexus







Ferrari





Mercedes





Aston Martin





Lamborghini





Acura





Note the brakes glow blue due to cold weather after pit stop.



Corvette





BMW

 

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Discussion Starter · #33 ·
Best DPi Driver and Car Performance

Earl Bamber _ Chip Ganassi Racing _ Dallara-Cadillac V8 (#02)





Best LMP2 Driver and Car Performance

Rinus Veekay _ Racing Team Nederland _ Oreca 07-Gibson V8 (#29)









Best LMP3 Driver and Car Performance

Felipe Fraga _ Riley Motorsports _ Ligier JSP320-Nissan V8 (#74)







Best GTD Pro Driver and Car Performance

Laurens Vanthoor _ KCMG _ Porsche 911 GT3 R F6 (#2)







Best GTD Driver and Car Performance

Nicklas Nielsen _ AF Corse _ Ferrari 488 GT3 V8 Turbo (#21)



 

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Discussion Starter · #34 ·
Daytona Road Course (3.56 miles) Race Sector 1 Fastest Times



DPi

Dallara-Cadillac V8 600hp 950kg (#01) _ 22.362



Oreca-Acura V6 Turbo 600hp 930kg (#60) _ 22.479



LMP2

Oreca 07-Gibson V8 580hp 940kg (#29) _ 22.638



LMP3

Ligier JSP320-Nissan V8 460hp 950kg (#74) _ 24.132



GTD combined

Lexus RC F GT3 V8 500hp 1345kg (#12) _ 24.620



Porsche 911 GT3 R F6 500hp 1300kg (#79) _ 24.685



Mercedes-AMG GT3 V8 500hp 1350kg (#57) _ 24.712



Ferrari 488 GT3 V8 Turbo 500hp 1330kg (#62) _ 24.719



Lamborghini Huracan GT3 V10 500hp 1305kg (#63) _ 24.731



Corvette C8R GTD V8 500hp 1335kg (#4) _ 24.810



McLaren 720S GT3 V8 Turbo 500hp 1295kg (#70) _ 24.862



Acura NSX GT3 V6 Turbo 500hp 1295kg (#66) _ 24.939



Aston Martin Vantage GT3 V8 Turbo 500hp 1320kg (#98) _ 24.990



BMW M4 GT3 I6 Turbo 500hp 1340kg (#24) _ 25.098



Weight does not include driver and fuel.










 

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Discussion Starter · #35 ·
Sector 2 and 3 are more important.



Daytona Road Course (3.56 miles) Race Sector 2 Fastest Times



DPi

Oreca-Acura V6 Turbo 600hp 930kg (#10) _ 43.874



Dallara-Cadillac V8 600hp 950kg (#02) _ 43.876



LMP2

Oreca 07-Gibson V8 580hp 940kg (#68) _ 44.865



LMP3

Ligier JSP320-Nissan V8 460hp 950kg (#33) _ 47.595



GTD combined

Ferrari 488 GT3 V8 Turbo 500hp 1330kg (#47) _ 48.913



Porsche 911 GT3 R F6 500hp 1300kg (#2) _ 48.985



McLaren 720S GT3 V8 Turbo 500hp 1295kg (#70) _ 49.019



Lexus RC F GT3 V8 500hp 1345kg (#14) _ 49.117



Lamborghini Huracan GT3 V10 500hp 1305kg (#39) _ 49.157



Mercedes-AMG GT3 V8 500hp 1350kg (#57) _ 49.159



Aston Martin Vantage GT3 V8 Turbo 500hp 1320kg (#44) _ 49.197



Acura NSX GT3 V6 Turbo 500hp 1295kg (#66) _ 49.255



Corvette C8R GTD V8 500hp 1335kg (#3) _ 49.312



BMW M4 GT3 I6 Turbo 500hp 1340kg (#96) _ 49.847



Weight does not include driver and fuel.










 

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Discussion Starter · #36 ·
Daytona Road Course (3.56 miles) Race Sector 3 Fastest Times



DPi

Dallara-Cadillac V8 600hp 950kg (#01) _ 27.104



Oreca-Acura V6 Turbo 600hp 930kg (#10) _ 27.107



LMP2

Oreca 07-Gibson V8 580hp 940kg (#18) _ 27.710



LMP3

Duqueine D08-Nissan V8 460hp 950kg (#26) _ 30.059



GTD combined

McLaren 720S GT3 V8 Turbo 500hp 1295kg (#70) _ 30.905



Ferrari 488 GT3 V8 Turbo 500hp 1330kg (#47) _ 30.994



Lexus RC F GT3 V8 500hp 1345kg (#12) _ 30.997



Porsche 911 GT3 R F6 500hp 1300kg (#9) _ 31.004



Aston Martin Vantage GT3 V8 Turbo 500hp 1320kg (#44) _ 31.054



Mercedes-AMG GT3 V8 500hp 1350kg (#15) _ 31.106



Corvette C8R GTD V8 500hp 1335kg (#3) _ 31.259



Lamborghini Huracan GT3 V10 500hp 1305kg (#63) _ 31.328



BMW M4 GT3 I6 Turbo 500hp 1340kg (#24) _ 31.510



Acura NSX GT3 V6 Turbo 500hp 1295kg (#66) _ 31.514



Weight does not include driver and fuel.














 

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Discussion Starter · #37 ·
Some GTD Pro/GTD teams were sandbagging during the Roar week.

Their race lap times were much quicker than Roar lap times.



 

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Discussion Starter · #38 ·
Daytona Road Course (3.56 miles) 24 hours Race



1. DPi Oreca-Acura V6 Turbo 600hp 930kg (#60) _ 761 laps _ 42 pit stops _ 17.7 laps per stint



2. DPi Oreca-Acura V6 Turbo 600hp 930kg (#10) _ 761 laps _ 39 pit stops _ 19 laps per stint



3. DPi Dallara-Cadillac V8 600hp 950kg (#5) _ 761 laps _ 40 pit stops _ 18.6 laps per stint



5. LMP2 Oreca 07-Gibson V8 580hp 940kg (#81) _ 751 laps _ 47 pit stops _ 15.6 laps per stint



6. LMP2 Oreca 07-Gibson V8 580hp 940kg (#29) _ 751 laps _ 40 pit stops _ 18.3 laps per stint



13. LMP3 Ligier JSP320-Nissan V8 460hp 950kg (#74) _ 723 laps _ 24 pit stops _ 28.9 laps per stint



18. GTD Pro Porsche 911 GT3 R F6 500hp 1300kg (#9) _ 711 laps _ 26 pit stops _ 26.3 laps per stint



19. GTD Pro Ferrari 488 GT3 V8 Turbo 500hp 1330kg (#62) _ 711 laps _ 28 pit stops _ 24.5 laps per stint



21. GTD Pro Lexus RC F GT3 V8 500hp 1345kg (#14) _ 711 laps _ 25 pit stops _ 27.3 laps per stint



22. GTD Pro Mercedes-AMG GT3 V8 500hp 1350kg (#15) _ 709 laps _ 32 pit stops _ 21.5 laps per stint



23. GTD Porsche 911 GT3 R F6 500hp 1300kg (#16) _ 707 laps _ 27 pit stops _ 25.3 laps per stint



24. GTD Aston Martin Vantage GT3 V8 Turbo 500hp 1320kg (#44) _ 707 laps _ 25 pit stops _ 27.2 laps per stint



25. GTD Mercedes-AMG GT3 V8 500hp 1350kg (#32) _ 707 laps _ 29 pit stops _ 23.6 laps per stint



27. GTD McLaren 720S GT3 V8 Turbo 500hp 1295kg (#70) _ 705 laps _ 29 pit stops _ 23.5 laps per stint



29. GTD Pro Corvette C8R GTD V8 500hp 1335kg (#3) _ 698 laps _ 31 pit stops _ 21.8 laps per stint



30. GTD Pro BMW M4 GT3 I6 Turbo 500hp 1340kg (#25) _ 698 laps _ 34 pit stops _ 19.9 laps per stint



33. GTD Lamborghini Huracan GT3 V10 500hp 1305kg (#71) _ 692 laps _ 25 pit stops _ 26.6 laps per stint



42. GTD Acura NSX GT3 V6 Turbo 500hp 1295kg (#66) _ 659 laps _ 28 pit stops _ 22.7 laps per stint
































DPi





LMP2





LMP3




GTD













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