NSX-R 4.23:1 Final Drive Gearset

Description

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
BaselineJapanese
5-speed
4.235 R&P4.55 R&PJapanese 
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

Includes

  • NSX-R 4.23:1 countershaft
  • NSX-R 4.23:1 ring gear
  • NSX-R 4.23:1 oil gear
  • NSX-R stopper plate
  • NSX-R spring plate
Honda 5-spd NSX-R 4.23 final drive kit - NSX, 1991-94

dpp-161

$1,720.75
Honda 6-spd NSX-R 4.23 final drive kit - NSX, 1991-05

dpp-164

$1,743.75