1999 JRCC Round 4
MRX-2 4WD Setting Sheet (Kenji Osaka)
| Name：Kenji Osaka | Date： 1999/05/09 | Track：BOSS (JRCC4) | |
| Engine：RX21SP JP 27 | Piug：7Tf | Fuel：Byron3000 | Body：Mugen
Lola Body Position Rear spoiler：5 → 0 → 5 mm |
| Head clearance：....... 0.5 mm | Muffler：086 115 mm | ||
| Clutch bell clearance： 0.5 mm | |||
| Clutch spring adj. nut： 0.9 mm | |||
| Track condition: | |||
| Q'fy.1 | Q'fy.2 | Final | |||
 |
Front rebound stop | +2 mm | 0 mm | 0 mm | 0 mm |
| Rear rebound stop | +7 mm | +8 mm / | +8 mm / | +8 mm / | |
 |
Front damper piston | Stock | 1.4X1 | 1.4X1 | 1.4X1 |
| damper oil | #400 | #500 | #500 | #400 | |
| spring | Stock | Black/ | Black/ / | Black/ / | |
| spring adj. pos. | mm | 6 mm | 5.7 mm | 6 mm | |
| Front track width | 252 mm | 254 mm | 254 mm | 254 mm | |
| road clearance | 7 mm | 6 mm | 6 mm | 6 mm | |
| camber angle | -1° | -1.5° | -1.5° | -1.5° | |
| toe | 0°〜out | 1 out | 1 out | 1 out | |
| anti-sway bar |  |
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| upper arm pos. | 2 mm | 2 mm | 2mm | 2 mm | |
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Rear damper piston | Stock | 1.1X2 | 1.1X2 | 1.1X2 |
| damper oil | #400 | #500 | #500 | #400 | |
| damper position | 1 | 1 | 1 | 1 | |
| spring | Stock | Blue | Blue | Black | |
| spring adj. pos. | mm | 2 mm | 2 mm | 3 mm | |
| Rear track width | 262 mm | 264 mm | 264 mm | 264 mm | |
| road clearance | 8 mm | 6 mm | 6 mm | 6.5 mm | |
| camber angle | -2° | -2.5° | -2.5° | -2.5° | |
| anti-sway bar | Stock | 3 (0) | 3 (0) | 3 (0) | |
| toe-in | 0.5°〜1° | 1° | 1° | 1° | |
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Front tire type | FAH35M | FAH35M | FAH35M | |
| tire dia. (start) | L68.5/R68.5 | L64.0/R64.0 | L66.5/R66.5 | L65.8/R65.8 | |
| tire dia. (finish) | L/R | L63.5/R63.5 | L65.8/R65.8 | L63.8/R64.0 | |
| Rear tire type | FPH35M | FPH35M | FPH35M | ||
| tire dia. (start) | L76/R76 | L74.0/R74.0 | L73.5/R73.5 | L72.9/R72.9 | |
| tire dia. (finish) | L/R | L73.5/R73.5 | L72.9/R72.9 | L70.0/R70.5 | |
| 2speed gear 1st. | / | 17/50 | 17/50 | 17/50 | |
| 2nd. | / | 20/46 | 20/46 | 20/46 | |
| Roll-cut 1st. | mm | 32.9 mm | 32.7 mm | 32.5 mm | |
| 2nd. | mm | 42.1 mm | 41.8 mm | 41.5 mm | |
| Pulley A (25 or 26) | 26 | 19-26 | 26 | 26 | |
| Over drive ratio | 0.998 | 1.000 | 1.000 | 1.001 | |
| Track traction | % | 80% | 80% | 85% | |
| Result | 19L 5'1" | 19L 5'3" | |||
| Best lap time (1L) | 15'46 | 15'53 | 15'40 |
：14 mm