| Class | Time | Driver | Yr | Make/Model | Date | Avg Spd |
|---|---|---|---|---|---|---|
| AS | 01:43.527 | Kyle Watkins | 2004 | Ford Mustang | 04/15/2007 | 76.5018 |
| ASR | 01:36.330 | Lee Huls | Lola T330 | 08/31/1986 | 82.2174 | |
| CC | 01:34.803 | Greg Lambert | 1993 | Van Dieman RF93 | 07/03/2006 | 83.5417 |
| CF | 01:37.036 | Dan Fritz | Lola T540 | 09/20/1992 | 81.6192 | |
| CSR | 01:23.922 | J R Osborne | 2006 | Stohr WF-1 | 04/13/2008 | 94.3733 |
| DSR | 01:25.861 | J R Osborne | 2006 | Stohr WF-1 | 04/14/2007 | 92.2421 |
| EP | 01:39.856 | Kim Knapp | 2000 | Caterham 7 | 04/17/2005 | 79.3142 |
| ESR | 01:36.684 | Chris Doyle | 2003 | Van Dieman SRSCCA | 07/15/2007 | 81.9163 |
| F440 | 01:42.381 | Al Loehner | Kbs | 09/06/1992 | 77.3581 | |
| F5 | 01:36.768 | Aaron Ellis | Red Devil Ae03 | 04/18/2004 | 81.8452 | |
| FA | 01:26.982 | Bob Tankersley | Swift | 09/18/1993 | 91.0533 | |
| FB | 01:33.082 | Micheal Rock | 2007 | Spreads RM07 | 04/12/2008 | 85.0863 |
| FC | 01:29.303 | Russ Lindemann | 1999 | Van Deiman RF99 | 04/17/2005 | 88.6868 |
| FE | 01:32.085 | Tyler Hunter | 2004 | Van Diemen SCCA | 04/12/2008 | 86.0075 |
| FF | 01:32.700 | Kirk Stevens | Swift | 08/30/1986 | 85.4369 | |
| FM | 01:29.788 | Justin Pestonik | Formula Mazda | 04/16/2000 | 88.2078 | |
| FP | 01:42.984 | Luis Rivera | 1990 | Mazda Miata | 04/17/2005 | 76.9052 |
| FS | 01:37.895 | Brian Ball | Pocket Rocket | 04/28/2002 | 80.9030 | |
| FV | 01:42.457 | Bob Neumister | 1991 | Mysterian | 04/16/2000 | 77.3007 |
| GP | 01:44.254 | Jeff Winter | 1970 | Nissan 510 | 04/27/2003 | 75.9683 |
| GT1 | 01:35.772 | Len Gilmore | Chevy | 04/14/2002 | 82.6964 | |
| GT2 | 01:36.685 | Bruce Phillips | 2002 | Porsche GT3 | 04/08/2006 | 81.9155 |
| GT3 | 01:39.848 | Jim Valdez | 2006 | Bmw E 46 | 04/14/2007 | 79.3206 |
| GT4 | 01:44.784 | Jeff Winter | 1970 | Nissan 510 | 07/20/1997 | 75.5841 |
| GT5 | 01:44.694 | Kirk Olson | 1986 | Honda CRX | 07/19/1997 | 75.6490 |
| GTL | 01:46.016 | John Brumder | 1974 | Honda Civic | 04/17/2005 | 74.7057 |
| HP | 01:47.098 | Jerry Oleson | 1962 | Austin Healey Sprite | 04/14/2007 | 73.9510 |
| ITA | 01:51.105 | Spencer Smith | 1992 | Mazda Miata | 07/02/2006 | 71.2839 |
| ITB | 01:51.905 | Bob Maples | 1971 | BMW 2002 | Pre 1997 | 70.7743 |
| ITC | 01:55.164 | Tom Kottmeier | Datsun | 09/24/1994 | 68.7715 | |
| ITE | 01:39.101 | Richard Winnick | 1987 | Porsche | 04/13/2002 | 79.9185 |
| ITE-O | 01:43.817 | Bob Patterson | 1986 | Porsche 951 | 10/20/2007 | 76.2881 |
| ITE-U | 01:45.312 | Tim Roghair | 1989 | Bmw M3 | 07/17/2005 | 75.2051 |
| ITS | 01:47.205 | Guy Ruse | 1987 | Mazda RX-7 | 07/18/2004 | 73.8772 |
| LC | 01:52.298 | Leslie Barker | Legends | 06/20/1999 | 70.5266 | |
| S2 | 01:32.471 | Mark Mercer | 2000 | Lola 90/91 | 04/17/2004 | 85.6485 |
| S7 | 01:53.250 | Jason Ott | 1983 | Mazda RX-7 | 07/22/2001 | 69.9338 |
| S944 | 01:53.202 | Tim Meyer | 1988 | Porsche 944 | 07/20/2008 | 69.9634 |
| SCA | 01:33.119 | Bob Young | 1991 | Shelby Can-Am | 08/31/1991 | 85.0525 |
| SFV | 01:45.003 | Brandon Peterson | Mysterian | 07/19/1997 | 75.4264 | |
| SM | 01:47.821 | Mark Franklin | 1994 | Mazda Miata | 04/13/2008 | 73.4551 |
| SP | 01:38.764 | Jeff Winter | 1971 | Porsche 914 | 10/18/2008 | 80.1912 |
| SR | 01:47.715 | Dick Downs | Renualt | 05/17/1992 | 73.5274 | |
| SRF | 01:42.470 | John Dunn | Spec Racer Ford | 04/26/2003 | 77.2909 | |
| SSA | 01:53.835 | Bill Hagerty | Mitsubishi | 09/05/1992 | 69.5744 | |
| SSB | 01:47.060 | Robert Schader | 2007 | Mazda MX-5 Miata | 04/12/2008 | 73.9772 |
| SSC | 01:51.455 | Jeff Jensen | 2004 | Mazda 3s | 04/12/2008 | 71.0601 |
| SSGT | 01:49.488 | Michael Pettiford | 1989 | Chevrolet Camaro IROC-Z 1LE | 08/01/1993 | 72.3367 |
| ST | 01:37.034 | Amedee Moran | 2006 | Chevy Corvette | 04/13/2008 | 81.6209 |
| STU | 01:48.779 | Brian Vinson | Acura Integra | 04/14/2007 | 72.8082 | |
| T1 | 01:38.594 | Michael Pettiford | 2002 | Corvette Z06 | 04/16/2005 | 80.3294 |
| T2 | 01:41.305 | Michael Pettiford | 2007 | Pontiac Solstice GXP | 04/12/2008 | 78.1798 |
| T3 | 01:43.632 | Bob Boileau | 2004 | Honda S2000 | 04/15/2007 | 76.4243 |