In Japan, a special performance tuned version of the NSX is available. The NSX-R model includes a higher ratio final drive gearset that increases the normal NSX 4.062:1 ratio to 4.235:1. This modification results in noticeably faster acceleration times.
In addition to the NSX-R final drive (countershaft, ring gear, and oil gear), this kit also includes the NSX-R stopper plate and spring plate. The stopper plate & spring plate increase LSD lock up rate and breakaway torque. The stopper plate & spring plate are available separately.
Application notes (please contact us with questions):
- 1991-1994 5-spd: direct drop in
- 1995-1996 5-spd: requires differential from 1991-94
- 1997-2005 6-spd: requires differential swap, not compatible with power steering
- 1991-1996 with 6-spd conversion: requires swapping existing 5-spd differential with 6-spd differential
Speed
0-MPH | Baseline | Japanese
5-speed | 4.235 R&P | 4.55 R&P | Japanese
5-speed
4.55 R&P | Japanese
5-speed
4.235 R&P |
|---|
| 0-30 |
2.16 |
2.16 |
2.08 |
1.94 |
1.94 |
2.08 |
| 0-40 |
2.92 |
2.92 |
2.80 |
2.62 |
2.62 |
2.80 |
| 0-50 |
4.16 |
4.11 |
4.11 |
4.02 |
3.91 |
4.04 |
| 0-60 |
5.56 |
5.34 |
5.45 |
5.27 |
5.00 |
5.22 |
| 0-70 |
6.99 |
6.60 |
6.82 |
6.54 |
6.60 |
6.42 |
| 0-80 |
8.46 |
8.52 |
8.23 |
8.45 |
8.24 |
8.44 |
| 0-90 |
10.74 |
10.46 |
10.65 |
10.42 |
9.94 |
10.28 |
| 0-100 |
13.13 |
12.48 |
12.91 |
12.49 |
12.33 |
12.58 |
| 0-110 |
15.66 |
15.67 |
15.31 |
15.40 |
15.39 |
15.64 |
| 0-120 |
19.02 |
19.25 |
19.02 |
18.72 |
18.38 |
18.98 |
| 0-130 |
23.56 |
23.27 |
23.24 |
23.42 |
23.26 |
22.72 |
| 0-140 |
28.93 |
27.91 |
28.13 |
28.90 |
30.36 |
30.04 |
calculated estimates of perfomance gains with available gear options
