Race No. 4
Bosch Spark Plug Grand Prix Presented by Toyota
Nazareth Speedway — Nazareth, PA
April 24-26, 1998
Individual Friday MorningPractice Report
| pos | car | driver | chassis engine tire | laptime | gap to leader | gap to next | mph | km/h | 110% rule |
| 1 | 11 | Christian Fittipaldi | 009.c/XD/G | 19.008 | 0.000 | 0.000 | 179.167 | 288.279 | n/a |
| 2 | 6 | Michael Andretti | 009.c/XD/G | 19.080 | -0.072 | -0.072 | 178.491 | 287.191 | n/a |
| 3 | 26 | Paul Tracy | 98I/HRK/F | 19.115 | -0.107 | -0.035 | 178.164 | 286.665 | 100.37% |
| 4 | 16 | Helio Castro-Neves (R) | 98I/108E/G | 19.256 | -0.248 | -0.141 | 176.859 | 284.566 | 101.11% |
| 5 | 99 | Greg Moore | 98I/108E/F | 19.279 | -0.271 | -0.023 | 176.648 | 284.227 | 101.23% |
| 6 | 27 | Dario Franchitti | 98I/HRK/F | 19.321 | -0.313 | -0.042 | 176.264 | 283.609 | 101.45% |
| 7 | 1 | Alex Zanardi | 98I/HRK/F | 19.334 | -0.326 | -0.013 | 176.146 | 283.418 | 101.52% |
| 8 | 17 | Mauricio Gugelmin | 98I/108E/F | 19.392 | -0.384 | -0.058 | 175.619 | 282.571 | 101.83% |
| 9 | 24 | Robby Gordon | 98I/RV8C/F | 19.423 | -0.415 | -0.031 | 175.339 | 282.120 | 101.99% |
| 10 | 12 | Jimmy Vasser | 98I/HRK/F | 19.476 | -0.468 | -0.053 | 174.861 | 281.352 | 102.27% |
| 11 | 10X | Richie Hearn | 009.c/XD/F | 19.502 | -0.494 | -0.026 | 174.628 | 280.977 | 102.41% |
| 12 | 5X | Gil de Ferran | 98I/HRK/G | 19.547 | -0.539 | -0.045 | 174.226 | 280.330 | 102.64% |
| 13 | 33 | Patrick Carpentier | 98I/108E/F | 19.581 | -0.573 | -0.034 | 173.924 | 279.843 | 102.82% |
| 14 | 20 | Scott Pruett | 98I/XD/F | 19.591 | -0.583 | -0.010 | 173.835 | 279.700 | 102.87% |
| 15 | 5 | Gil de Ferran | 98I/HRK/G | 19.618 | -0.610 | -0.027 | 173.596 | 279.315 | 103.01% |
| 16 | 8X | Bryan Herta | 98I/XD/F | 19.678 | -0.670 | -0.060 | 173.066 | 278.464 | 103.33% |
| 17 | 7 | Bobby Rahal | 98I/XD/F | 19.687 | -0.679 | -0.009 | 172.987 | 278.336 | 103.38% |
| 18 | 9 | JJ Lehto (R) | 98I/108E/F | 19.691 | -0.683 | -0.004 | 172.952 | 278.280 | 103.40% |
| 19 | 25 | Max Papis | 98I/RV8C/F | 19.768 | -0.760 | -0.077 | 172.278 | 277.196 | 103.80% |
| 20 | 40 | Adrian Fernandez | 98I/XD/F | 19.808 | -0.800 | -0.040 | 171.931 | 276.636 | 104.01% |
| 21 | 36 | Alex Barron (R) | 98I/RV8C/G | 19.853 | -0.845 | -0.045 | 171.541 | 276.009 | 104.25% |
| 22 | 21 | Tony Kanaan (R) | 98I/HRK/F | 19.871 | -0.863 | -0.018 | 171.385 | 275.759 | 104.34% |
| 23 | 18 | Mark Blundell | 98I/108E/F | 19.975 | -0.967 | -0.104 | 170.493 | 274.323 | 104.89% |
| 24 | 98 | PJ Jones | 98I/RV8C/G | 20.120 | -1.112 | -0.145 | 169.264 | 272.346 | 105.65% |
| 25 | 19 | Michel Jourdain Jr. | 98I/XD/F | 20.279 | -1.271 | -0.159 | 167.937 | 270.211 | 106.49% |
| 26 | 2 | Al Unser Jr. | P98/108E/G | 20.306 | -1.298 | -0.027 | 167.714 | 269.852 | 106.63% |
| 27 | 77 | Arnd Meier | 97I/XD/G | 20.509 | -1.501 | -0.203 | 166.054 | 267.181 | 107.69% |
| 28 | 20X | Scott Pruett | 98I/XD/F | 20.515 | -1.507 | -0.006 | 166.005 | 267.103 | 107.72% |
| 29 | 3 | Andre Ribeiro | P98/108E/G | 20.538 | -1.530 | -0.023 | 165.819 | 266.804 | 107.85% |
| 30 | 3X | Andre Ribeiro | P98/108E/G | 20.575 | -1.567 | -0.037 | 165.521 | 266.324 | 108.04% |
| 31 | 10 | Richie Hearn | 009.c/XD/F | 20.682 | -1.674 | -0.107 | 164.665 | 264.946 | 108.60% |
| 32 | 34 | Dennis Vitolo | 98I/XD/F | 21.425 | -2.417 | -0.743 | 158.954 | 255.758 | 112.50% |
| 33 | 40X | Adrian Fernandez | 98I/XD/F | 21.439 | -2.431 | -0.014 | 158.851 | 255.591 | 112.58% |