# 1983 24 Hours of Daytona

The Silver Anniversary Edition 24 Hour Pepsi Challenge was a 24-hour endurance sports car race held on February 5–6, 1983 at the Daytona International Speedway road course. The race served as the opening round of the 1983 IMSA GT Championship.
Victory overall and in the GTP class went to the No. 6 Henn's Swap Shop Racing Porsche 935 driven by Bob Wollek, Claude Ballot-Léna, Preston Henn, and A. J. Foyt. Victory in the GTO class went to the No. 7 Racing Beat Mazda RX-7 driven by Pete Halsmer, Bob Reed, and Rick Knoop. Victory in the GTU class went to the No. 92 Kent Racing Mazda RX-7 driven by Lee Mueller, Hugh McDonough, and Terry Visger.

## Race results

Class winners in bold.
| Pos | Class | No | Team | Drivers | Car | Laps |
| 1 | GTP | 6 | Henn's Swap Shop Racing | Bob Wollek Claude Ballot-Léna Preston Henn A. J. Foyt | Porsche 935 | 618 |
| 2 | GTP | 88 | Motorsports Marketing | Terry Wolters Randy Lanier Marty Hinze | March 83G | 612 |
| 3 | GTO | 7 | Racing Beat | Pete Halsmer Bob Reed Rick Knoop | Mazda RX-7 | 598 |
| 4 | GTP | 24 | Pegasus III Racing | M. L. Speer Ken Madren Ray Ratcliff | Porsche 935 | 578 |
| 5 | GTO | 50 | Latino Racing | Diego Febles Kikos Fonseca Roy Valverde | Porsche 911 Carrera RSR | 568 |
| 6 | GTP | 10 | Cooke Racing | Ralph Kent-Cooke Jim Adams John Bright | Lola T600 | 563 |
| 7 | GTO | 05 | T&R Racing | Tico Almeida Miguel Morejon Ernesto Soto | Porsche 911 Carrera RSR | 561 |
| 8 | GTP | 77 | Z&W Enterprises | Walt Bohren Pierre Honneger David Palmer | Mazda GTP | 553 |
| 9 | GTO | 9 | Personalized Autohaus | Wayne Baker Jim Mullen Bob Garretson | Porsche 934 | 551 |
| 10 | GTO | 35 | Pegasus Racing | Paul Gilgan Al Leon Wayne Pickering | Porsche 911 Carrera RSR | 547 |
| 11 | GTP | 47 | Frank Rubino | Frank Rubino Pepe Romero Doc Bundy Dale Whittington | Porsche 935 | 546 |
| 12 | GTU | 92 | Kent Racing | Lee Mueller Hugh McDonough Terry Visger | Mazda RX-7 | 544 |
| 13 | GTO | 58 | Brumos Racing | Kathy Rude Deborah Gregg Bonnie Henn | Porsche 924 Carrera GTR | 531 |
| 14 | GTU | 90 | 901 Shop | Mike Schaefer Jack Refenning John Belperche Doug Zitza | Porsche 911 | 525 |
| 15 | GTO | 61 | Vista Racing | Brent O'Neill Don Courtney Luis Sereix | Chevrolet Monza | 525 |
| 16 DNF | GTP | 86 | Bayside Disposal Racing | Hurley Haywood Bruce Leven Al Holbert | Porsche 935 | 515 |
| 17 | GTU | 60 | Team Morrison | Steve Dietrich Chris Ivey Jim Cook | Mazda RX-7 | 514 |
| 18 | GTO | 85 | Richard Lloyd | Richard Lloyd George Drolsom Jonathan Palmer | Porsche 924 Carrera GTR | 500 |
| 19 | GTU | 38 | Mandeville Auto/Tech | Roger Mandeville Amos Johnson Danny Smith | Mazda RX-7 | 476 |
| 20 | GTO | 4 | Statagraph, Inc. | Billy Hagan Terry Labonte Lloyd Frink | Chevrolet Camaro | 467 |
| 21 | GTU | 63 | RGP 500 Racing | Jim Downing John Maffucci Steve Potter | Mazda RX-7 | 466 |
| 22 | GTO | 29 | Overby's | Robert Overby Chris Doyle Don Bell | Chevrolet Camaro | 438 |
| 23 | GTU | 37 | Burdsall-Welter Racing | Tom Burdsall Peter Welter Al Bacon | Mazda RX-7 | 436 |
| 24 DNF | GTO | 26 | Auriga Racing | Tom Nehl Nelson Silcox R. J. Valentine | Chevrolet Camaro | 426 |
| 25 DNF | GTP | 1 | JLP Racing | John Paul Jr. Rene Rodriguez Joe Castellano | Porsche 935 | 412 |
| 26 DNF | GTO | 13 | Gordon Oftedahl | Duane Eitel Mike Brummer Phil Pate | Pontiac Firebird | 411 |
| 27 | GTO | 28 | Avanti | Herb Adams John Martin Joe Ruttman Leonard Emanuelson | Avanti II | 410 |
| 28 | GTO | 40 | Bieri Racing | Uli Bieri Matt Gysler Duff Hubbard | BMW M1 | 406 |
| 29 | GTU | 97 | All American Racers | Wally Dallenbach Jr. Willy T. Ribbs Whitney Ganz | Toyota Celica | 365 |
| 30 | GTO | 75 | Bard Boand | Bard Boand Richard Anderson Mike Stephens | Chevrolet Corvette | 358 |
| 31 DNF | GTP | 83 | Thomas T. Ciccone | Mike Gassaway Scott Smith Joe Cogbill Joe Cogbill Jr. | Chevrolet Camaro | 357 |
| 32 | GTU | 52 | TFC Racing | Tom Cripe Dick Gauthier David Duncan Jack Swanson | Porsche 911 | 312 |
| 33 DNF | GTU | 71 | Morgan Performance Technology | Charles Morgan Bill Johnson Jim Miller | Datsun 280ZX | 305 |
| 34 DNF | GTU | 27 | Scuderia Rosso | Jim Fowells Ray Mummery Tom Sheehy | Mazda RX-7 | 300 |
| 35 DNF | GTU | 78 | Der Klaus Haus | Klaus Bitterauf Vicki Smith Scott Flanders | Porsche 911 | 299 |
| 36 DNF | GTP | 65 | Ron Spangler | Carson Baird Chip Mead Tom Pumpelly | Ferrari 512 | 294 |
| 37 DNF | GTO | 23 | Superior Racing Team | Raul Garcia Vince DiLella Armando Fernandez | Chevrolet Camaro | 285 |
| 38 | GTO | 01 | Marketing Corporation | John Morton Tom Klausler Ronnie Bucknum | Ford Mustang | 284 |
| 39 DNF | GTO | 72 | John Josey | Gary Baker Sterling Marlin | Chevrolet Corvette | 284 |
| 40 | GTO | 41 | Starved Rock Ledge | Rusty Schmidt Scott Schmidt | Chevrolet Corvette | 263 |
| 41 | GTO | 49 | OMR Engines | Hoyt Overbagh Peter Kirill David Price | Chevrolet Monza | 243 |
| 42 DNF | GTU | 66 | Mike Meyer Racing | Jack Dunham Jeff Kline Jon Compton | Mazda RX-7 | 242 |
| 43 DNF | GTO | 45 | Statagraph, Inc. | Gene Felton Tom Williams Lloyd Frink | Chevrolet Camaro | 223 |
| 44 DNF | GTP | 21 | Nimrod Racing | Lyn St. James John Graham Drake Olson | Nimrod NRA/C2 | 208 |
| 45 DNF | GTO | 79 | Whitehall Productions | Tom Winters Bob Bergstrom Peter Dawe | Porsche 924 Carrera GTR | 193 |
| 46 DNF | GTO | 55 | B de T Racing | Diego Montoya Terry Herman Tony Garcia | BMW M1 | 172 |
| 47 DNF | GTO | 14 | Oftedahl Racing | Bob Raub Sam Moses Carl Shafer | Pontiac Firebird | 165 |
| 48 DNF | GTU | 16 | Paul Goral | Paul Goral Larry Figaro Nort Northam | Porsche 911 | 161 |
| 49 DNF | GTP | 74 | Mark Wagoner | Del Russo Taylor Mike Angus Wayne Dessinger | Chevron GTP | 152 |
| 50 DNF | GTP | 44 | Group 44 | Bob Tullius Bill Adam Pat Bedard | Jaguar XJR-5 | 130 |
| 51 DNF | GTU | 98 | All American Racers | Dennis Aase Al Unser Jr. Mike Chandler | Toyota Celica | 130 |
| 52 DNF | GTO | 89 | Taca El Salvador | "Jamsal" Eduardo Galdamez Eduardo Barrientos | Porsche 911 Carrera RSR | 122 |
| 53 DNF | GTO | 31 | Kendco | Dale Kreider Dick Neland | Chevrolet Camaro | 122 |
| 54 DNF | GTP | 11 | Nimrod Racing | A. J. Foyt Darrell Waltrip Guillermo Maldonado | Nimrod NRA/C2 | 121 |
| 55 DNF | GTO | 67 | Trans Am Specialties | Elliott Forbes-Robinson Gary Witzenburg Tony Swan | Pontiac Firebird | 121 |
| 56 DNF | GTU | 42 | Gary Wonzer | Bill Bean Buzz Cason Gary Wonzer | Porsche 911 | 118 |
| 57 DNF | GTU | 99 | All American Racers | Gene Hackman Masanori Sekiya Kaoru Hoshino | Toyota Celica | 118 |
| 58 DNF | GTO | 64 | John Hulen | John Hulen Ron Coupland Bob Speakman | Porsche 911 Carrera RSR | 118 |
| 59 DNF | GTO | 15 | D&L Performance | Doug Lutz Dave Panaccione Larry Connor Fern Prego | Porsche 911 Carrera RSR | 113 |
| 60 DNF | GTO | 81 | Robert Whitaker | Robert Whitaker Bill McDill Karl Keck | Chevrolet Camaro | 98 |
| 61 DNF | GTO | 36 | Herman & Miller P&A | Paul Miller Jim Busby Ron Grable | Porsche 924 Carrera GTR | 91 |
| 62 | GTO | 06 | Bobby Diehl | Bobby Diehl Roy Newsome | Mazda RX-7 | 87 |
| 63 DNF | GTO | 43 | Bob Gregg Racing | Bob Richardson Bob Young Bob Gregg | Chevrolet Camaro | 85 |
| 64 DNF | GTO | 04 | Paul Canary Racing | Paul Canary Jean-Paul Libert Pascal Witmeur Roger Carmillet | Pontiac Firebird | 85 |
| 65 DNF | GTU | 32 | Richard Cline | Rick Cline Paul Romano Mike Powell | Mazda RX-7 | 82 |
| 66 DNF | GTO | 84 | Motorsport Marketing | Emory Donaldson Steve Pope Ken Murray | Chevrolet Camaro | 79 |
| 67 DNF | GTO | 07 | Heimrath Racing | Ludwig Heimrath Ludwig Heimrath Jr. | Porsche 934 | 71 |
| 68 DNF | GTU | 30 | Case Racing | Jack Rynerson Ron Case | Porsche 911 | 67 |
| 69 DNF | GTU | 51 | Red Roof Inns | Doug Carmean Don Herman John Finger | Mazda RX-7 | 57 |
| 70 DNF | GTU | 82 | Trinity Racing | Joe Varde John Casey Jack Baldwin | Mazda RX-7 | 52 |
| 71 DNF | GTO | 87 | Bob Beasley | Bob Beasley John Ashford Jack Lewis | Porsche 911 Carrera RSR | 52 |
| 72 DNF | GTP | 0 | Interscope Racing | Ted Field Bill Whittington Danny Ongais | Lola T600 | 47 |
| 73 DNF | GTP | 5 | Bob Akin Motor Racing | Bob Akin John O'Steen Dale Whittington | Porsche 935 | 43 |
| 74 DNF | GTP | 03 | Angelo Pallavicini | Angelo Pallavicini Werner Frank | Porsche 935 | 24 |
| 75 DNF | GTO | 02 | Marketing Corp. of America | Milt Minter Ronnie Bucknum | Ford Mustang | 24 |
| 76 DNF | GTP | 6 | JLP Racing | John Paul Phil Currin | Porsche 935 | 15 |
| 77 DNF | GTP | 25 | Red Lobster Racing | Dave Cowart Kenper Miller Mauricio de Narváez | March 82G | 14 |
| 78 DNF | GTO | 09 | Mark Gassaway | Tom Ciccone Vic Shinn Joe Cogbill | Chevrolet Camaro | 6 |
| 79 DNF | GTO | 19 | Van Every Racing | Lance van Every Ash Tisdelle | Porsche 911 Carrera RSR | 0 |
| DNS | GTP | 00 | Interscope Racing | Ted Field Bill Whittington Danny Ongais | Lola T600 | - |
| DNS | GTP | 2 | Hinze Fencing | Marty Hinze | Porsche 935 | - |
| DNS | GTO | 17 | Dingman Bros. Racing | Billy Dingman Roger Bighouse John Gunn | Chevrolet Corvette | - |
| DNS | GTO | 18 | Bill Nelson | Vincent Collins Bill Nelson Lojza Vosta | Pontiac Firebird | - |
| DNS | GTO | 20 | Dale Kreider | Dale Kreider Dave Heinz | Chevrolet Corvette | - |
| DNS | GTU | 39 | Donald Flores | Donald Flores Robert Gottfried Howdy Holmes | Porsche 911 | - |
| DNS | GTU | 69 | Conrado Casado | Ricardo Londoño Diego Londoño Fred Flaquer | Porsche 911 | - |
| DNS | GTU | 73 | G.O. Racing | Ken Grostic Keith Lawhorn | Porsche 914 | - |
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