Pole position: Ongais in 2.01,152 = 183,633 kmh
Fastest lap: Stommelen in 1.51,845 = 198,914 kmh

Distance: 24 hours
Average speed: 175,004 kmh
Weather: Warm and dry
Ruleset: Group 5, IMSA GT
Car info: 1978 Cars

Overall result
Pos	Pos in class	#	Team / Entrant Car- Engine	Drivers, Nationality	Engine vol. (cc)	Engine Type	Group	Distance, time	Qualifying position	Qualifying time	Fastest lap	Reason out, remarks
1	1/1	99	Brumos Porsche/Loos Porsche 935-77A	Rolf Stommelen, D Toine Hezemans, NL Peter Gregg, USA	2994 tc	B6	Group 5/Div. 2 IMSA GTX	680 laps, 24:00.45,4	4	2.03,097	1.51,845
2	2/2	6	Dick Barbour Porsche 935	Dick Barbour, USA Manfred Schurti, FL Johnny Rutherford, USA	2994 tc	B6	Group 5/Div. 2 IMSA GTX	650	8	2.06,900
3	1	58	Diego Febles Racing Porsche Carrera RSR	Diego Febles, PR Alec Poole, IRL	2994	B6	IMSA GTO	645	21	2.07,235
4	2	33	Baricua Racing Porsche Carrera RSR	Bonky Fernandez, PR John Paul Sr, USA Phil Currin, USA	2994	B6	IMSA GTO	637	14	2.01,956
5	3/3	14	Porsche Kremer Porsche 935	Josef Brambring, D Louis Krages ("John Winter"), D Dieter Schornstein, D	2994 tc	B6	Group 5/Div. 2 IMSA GTX	635	10	2.13,972
6	4/5	32	Porsche Carrera RSR	Steve Earle, USA Bob Akin, USA Rick Knoop, USA	2994	B6	Group 5/Div. 2 IMSA GTX	632	18	2.05,491
7	5/3	65	David Carradine Ferrari 365 GTB/4 Daytona	John Morton, USA Tony Adamowicz, USA Hal Sahlman, USA Bobby Carradine, USA	4390	V12	Group 5/Div. 2 IMSA GTO	622	16	2.04,021
8	6/6	59	Brumos Porsche Porsche 935	Peter Gregg, USA Claude Ballot-Léna, F Brad Frisselle, USA	2857 tc	B6	Group 5/Div. 2 IMSA GTX	621	6	2.05,951
DSQ		71	Bill Scott Racing Porsche 911 S	Francisco Romero, YV Ernesto Soto, YV Hardie Beloff, USA	2500	B6	IMSA GTU	617	37	2.11,711		Refused inspection
9	7/7	13	Porsche 935	Hal Shaw Jr, USA Jim Busby, USA Howard Meister, USA	2994 tc	B6	Group 5/Div. 2 IMSA GTX	608	9	2.10,939
10	-/2	34	Porsche 911 S	George Drolsom, USA Hugh Davenport, USA Mark Greb, USA	2500	B6	IMSA GTU	592	57	2.18,426
11	8/8	21	Porsche 935	Franz Konrad, A Reinhold Jöst, D Volkert Merl, D	2994 tc	B6	Group 5/Div. 2 IMSA GTX	590	7	2.06,751
12	-/3	08	Porsche 911 S	Terry Wolters, USA Jack Refenning, USA Raymond Mummery, USA	2500	B6	IMSA GTU	584	55	2.17,995
13	-/9	24	Porsche Carrera RSR	Tom Frank, USA Bob Bergstrom, USA	2994	B6	IMSA GTX	580	19	2.05,969
14	-/4	84	Worldparts Datsun 260Z	Chris Doyle, USA John Maffucci, USA Bob Speakman, USA		L6	IMSA GTU	577	56	2.18,414
15	-/5	60	R&R Racing Porsche 911 S	John H. Thomas Jr, USA Ren Tilton, USA Rusty Bond, USA	2500	B6	IMSA GTU	551	34	2.09,410
16	-/6	29	Porsche 911 S	Richard Weiss, USA Bill Alsup, USA Bill Follmer, USA	2500	B6	IMSA GTU	550	35	2.09,947
17	-/10	37	Chevrolet Camaro	Robert Buchler, USA Eddie Johnson, USA Clay Young, USA		V8	IMSA GTX	550	45	2.15,515
18	-/7	22	Music City Racing Porsche 911 E	Bill Harriss, USA Volker Bruckmann, USA Ron Southern, USA	2500	B6	IMSA GTU	546	49	2.16,468
19	9/11	5	Howard O’Flynn Ferrari 365 GT4 Berlinetta Boxer	François Migault, F Lucien Guitteny, F Gregg Young, USA	4390	V12	Group 5/Div. 2 IMSA GTX	521	17	2.04,329
20	/5	68	Porsche Carrera	Luis Mendez, DR Armando Gonzalez, PR Tato Ferrer, PR	2994	B6	IMSA GTO	509	66	2.26,013
21	-/8	91	Datsun 240Z	Bill Cooper, USA Steve Cook, USA Bob Bondurant, USA Ron Southern, USA		L6	IMSA GTU	508	65	2.25,662
22	/6	78	Western Motor Works Ferrari 365 GTB/4 Daytona	Bobby Hillin, USA William Henderson, USA Richard Turner, USA	4390	V12	IMSA GTO	506	52	2.17,357
23	-/9	9	Lancia Stratos	Brian Goellnicht, USA José Marina, USA Jack May, USA Anatoly Arutunoff, USA	2418	V6	IMSA GTU	505	53	2.17,492
24	1/10	36	Porsche 911	Ron Case, USA Dave Panaccione, USA	1991	B6	Group 5/Div. 1 IMSA GTU	500	46	2.15,534
25	2/11	53	Mazda Mazda Savanna RX-3	Jim Downing, USA Stu Fisher, USA Walt Bohren, USA Roger Mandeville, USA	2 x 491	R2	Group 5/Div. 1 IMSA GTU	498	42	2.14,599
26	/12	61	Alfred S. Cosentino Mazda Savanna RX-3	Taku Akaike, J Alfredo Cosentino, USA	2 x 491?	R2	IMSA GTU	498	44	2.14,793
27	-/12	38	Chevrolet Camaro	Bill McDill, USA Mike Meldeau, USA		V8	IMSA GTX	497	29	2.08,893
28	-/8	10	AMC AMX	Guy Church, USA Rick Kump, USA Bob Lee, USA		V8	IMSA GTO	481	62	2.23,999
29	/13	50	MG B GT	Charles Kleinschmidt, USA Lee Culpepper, USA	1798	L4	IMSA GTU	477	68	2.41,167
DNF	-/4	09	Porsche 935	Doc Bundy, USA Gary Belcher, USA Al Holbert, USA	2994 tc	B6	Group 5/Div. 2 IMSA GTX	632	12	1.56,828		Fuel pump
DNF	-/1	01	Porsche 911 S	David White, USA Gary Mesnick, USA J. Dana Roehrig, USA	2500	B6	IMSA GTU	604	26	2.07,839		Engine
DNF	-/4	46	Porsche Carrera RSR	Mauricio de Narvaez, CO Albert Naon, USA Tony Garcia, USA	2994	B6	IMSA GTO	547	36	2.10,725
DNF	-/7	94	Ferrari 365 GTB/4 Daytona	Preston Henn, USA Hal Sahlman, USA Sandy Satullo, USA	4390	V12	IMSA GTO	502	31	2.08,911
NC	-/9	77	AMC Hornet AMX	Amos Johnson, USA Dennis Shaw, USA Charles Woodward, USA		V8	IMSA GTO	475	41	2.14,409
DNF		7	Porsche 935	Ludwig Heimrath, CDN Jacques Bienvenue, CDN Norm Ridgely, CDN	2994 tc	B6	Group 5/Div. 2 IMSA GTX	466	11	1.55,403
DNF		07	Morrison Porsche Carrera RSR	Dave Cowart, USA Charles Mendez, USA Joe Castellano, USA	2994	B6	IMSA GTO	459	61	no time
DNF		82	Chevrolet Camaro	Carmon Solomone, USA Fred Lang, USA Buzz Fyhrie, USA		V8	IMSA GTX	456	24	2.07,497
DNF		15	Bavarian Motors International BMW 3.0 CSL	Bruno Beilcke, USA Sepp Grinbold, USA Alf Gebhardt, USA		L6	IMSA GTX	427	48	2.16,393
NC		55	Lotus Europa ?TC	Emiliano Rodriguez, USA Hiram Cruz, USA	1594	L4	IMSA GTU	402	58	2.18,883
DNF		95	Porsche 935	Hurley Haywood, USA Bob Hagestad, USA Doc Bundy, USA	2994 tc	B6	IMSA GTX	400	60	no time		Clutch
NC		18	Ours & Hours Racing Chevrolet Camaro	Carl Thompson, USA Jack Swanson, USA Brad West, USA		V8	IMSA GTX	395	50	2.16,674
NC		56	Carters Brothers Racing Chevrolet Camaro	Richard Valentine, USA Craig Carter, USA Murray Edwards, CDN		V8	IMSA GTX	361	23	2.07,477		Engine
NC		87	Porsche 911	Pedro Vasquez, USA Ron Oyler, USA Joseph Hamilton, USA Gunter Hamilton, USA (Gunter Seipolt, USA)		B6	IMSA GTU	360	67	2.58,98
NC		02	Chevrolet Corvette	Dick Neland, USA Al Levenson, USA Tom Brown, USA		V8	IMSA GTO	353	43	2.14,709
DNF		52	Mazda Mazda Savanna RX-3	Yoshimi Katayama, J Yojiro Terada, J Roger Mandeville, USA	2 x 491	R2	Group 5/Div. 1 IMSA GTU	271	28	2.08,779
DNF		19	Chevrolet Monza	Chris Cord, USA Jim Adams, USA		V8	IMSA GTX	261	13	1.59,100		Engine
DNF		73	Chevrolet Camaro	Clark Howey, USA Dale Koch, USA David Crabtree, USA		V8	IMSA GTX	259	20	2.06,961
DNF		76	Porsche 911	Frank Thomas, USA Lee Mueller, USA Logan Blackburn, USA		B6	IMSA GTU	224	39	2.12,306
DNF		72	Bil Arnold Chevrolet Corvette	Carl Thompson, USA Billy Hagan, USA Rusty Schmidt, USA		V8	IMSA GTX	169	22	2.07,721
DNF		20	Chevrolet Corvette	Richard Bostyan, USA Jerry Thompson, USA Don Yenko, USA		V8	IMSA GTO	152	15	2.03,360
DNF		25	BMW 3.0 CSL	Kenper Miller, USA Paul Miller, USA (Oscar Kovelesky, USA)		L6	IMSA GTX	125	64	2.25,439		Engine
DNF		05	Chevrolet Monza	Stephen Bond, USA Dale Kreider, USA (Philip Dann, USA)		V8	IMSA GTX	123	51	2.17,172		Wheel
DNF		8	Jolly Club Ferrari Dino 308	Felice Besenzoni, I Luciano Dal Ben, I Byron Wever, USA	3000	V8	Group 5/Div. 2 IMSA GTO	117	33	2.09,180
DNF		48	Chevrolet Corvette	John Carusso, USA Emory Donaldson, USA Luis Sereix, USA		V8	IMSA GTO	90	27	2.08,198		Suspension
DNF		80	Oldsmobile Cutlass	Herb Adams, USA Pat Bedard, USA Marv Thomson, USA		V8	IMSA GTO	89	30	2.08,911		Gearbox
DNF			Ted Field Porsche 935	Danny Ongais, USA Ted Field, USA Milt Minter, USA	2857 tc	B6	Group 5/Div. 2 IMSA GTX	88	1	2.00,152		Engine
DNF		12	Porsche Kremer Porsche 935-77A	Bob Wollek, F Henri Pescarolo, F (Didier Jaunet, F)	2994 tc	B6	Group 5/Div. 2 IMSA GTX	88	2	2.00,398		Engine
DNF		51	Wynn’s International Porsche Carrera RSR	John Hotchkis Sr, USA Bob Kirby, USA Dennis Aase, USA	2994	B6	IMSA GTO	85	63	2.24,85		Engine
DNF		4	Jolly Club Ferrari Dino 308	Dino Mallet, I Bob Bondurant, USA Romeo Camathias, I Sergio Rombolotti, I	3000	V8	Group 5/Div. 2 IMSA GTO	82	32	2.08,936
DNF		03	Chevrolet Camaro	Guido Levetto, USA Dan Rice, USA		V8	IMSA GTX	79	69	no time		Suspension
DNF		54	T & C Porsche Carrera	John Tunstall, USA Steve Behr, USA Lou Timolat, USA	2994	B6	IMSA GTO	70	38	2.11,732		Flywheel
DNF		39	Porsche Carrera	Greg Pickett, USA Neil Bonnet, USA Bruce Canepa, USA	2994	B6	IMSA GTO	67	59	2.22,975		Ignition
DNF		27	Mazda Savanna RX-3	Pierre Honegger, USA Bill Scott, USA Mark Hutchins, USA (Robert Dean, USA)	2 x 491?	R2	IMSA GTU	57	54	2.17,649
DNF		2	McLaren North America BMW 320 Turbo 2.0	David Hobbs, GB Ronnie Peterson, S	1998 tc	L4	Group 5/Div. 2 IMSA GTX	47	3	2.00,578		Engine
DNF		17	Chevrolet Corvette	Sam Fillingham, USA Tim Chitwood, USA (K.P. Jones, USA)		V8	IMSA GTO	45	40	2.14,237		Accident
DNF		3	Porsche 935	Carlo Facetti, I Martino Finotto, I	2994 tc	B6	Group 5/Div. 2 IMSA GTX	6	5	2.04,91
DNF		85	VW-Porsche 914/6	John Hulen, USA Ron Coupland, USA Nick Engels, USA		B6	IMSA GTU		47	2.16,363		Engine
DNS		86	De Tomaso Pantera GT4K	Janet Guthrie, USA Hugh Kleinpeter, USA Jeff Stevens, USA	5763	V8	IMSA GTX		25	2.07,815		Engine
DNS/DNQ?		66	David Carradine Ferrari 365 GTB/4 Daytona	Don Devendorf, USA Tony Adamowicz, USA Jeff Kline, USA	4390	V12	IMSA GTX			2.18,132
DNS/DNQ?		88	Porsche 911	Joseph Hamilton, USA Chuck Wade, USA Marty Hinze, USA		B6	IMSA GTU			2.37,662