featured:
IMPORTANT SERVICE BULLETIN: ScienceofSpeed recommends replacing
crankshaft pulley on early NSXes.
Click for more details.
new products -
NSX
new -
gauge mounting plate
new -
factory oil
pressure sensor upgrade
new -
LCD Display & Mount
updated -
navigation pod
updated -
lost motion assys
new -
ScienceofSpeed
Twin Turbo System
new -
Clutch
Alignment Tool
new -
coolant expansion tank
new -
Power Enterprises
Timing Belt
new -
front side
marker lamps
new -
ScienceofSpeed
Sport Clutch
new -
OS Giken 4.62:1
SuperLock LSD
new -
reinforced silicone
coolant hose kit
new colors -
NSX floor
mats
new -
Koyo
Aluminum Radiator
new -
targa shock
tower brace
new -
oil feed &
pressure adaptor
The innovative OS Giken Limited Slip
Differential combines the advantages of a helical gear type differential
with a clutch pack differential. Maximum torque can be transferred to a
corner's inside wheel increasing traction and cornering speed. The OS
Giken's patented locking mechanism allows the differential to smoothly
transfer to full locking performance with throttle application.
The OS Giken LSD is manufactured using the highest quality materials and
technology. A 28 clutch
pack with large friction discs allows smooth power transfer resulting in
a balanced chassis. Transfering load from the clutch packs, the patented
locking mechanism allows the differential to be able to transmit maximum power
with minimal power loss caused by heat.
This unique system allows the OS Giken
differential to maximize performance and still offer smooth performance
during normal driving. Differential gears are hot forged which improves
strength and allows miniaturization allowing larger clutch friction
discs to be used for maximum torque holding capability.
The OS Giken differential is available in either 4.06:1 (standard
factory ratio) final drive or shorter 4.44:1 final drive ratio. High
horsepower cars will prefer the 4.06:1 ratio while naturally aspirated
NSX will prefer the acceleration offered by the 4.44:1 ratio.
The 4.06:1 ratio differential includes a 4.06:1 ratio ring gear
(compatible with the factory countershaft and oil gear) while the 4.44:1
ratio differential includes ring gear, countershaft, and oil gear.
The OS Giken LSD and final drive is compatible with all years (available
for 5-spd and 6-spd manual transmissions) and will
not affect the EPS system on EPS equipped (1995-2005) NSX.
Differential is available in 1.0, 1.5, and 2.0 way configuration. 1.5
way offers the best performance for street and track use (Click
for an explanation of 1.0, 1.5, and 2.0 way configuration).
Please note: the 4.62:1 gear ratio has not
been tested with the factory electronic power steering system found on
1995-2005 NSX. The
4.06:1 and 4.44:1 ratios have been tested and confirmed.
specs
fitment:
NSX, all years
gallery
OS Giken SuperLock Differential & complete 4.44:1 final drive gearset - NSX, 5-spd
[dpp-331]
$3,390.00
OS Giken SuperLock Differential & complete 4.44:1 final drive gearset - NSX, 6-spd
[dpp-332]
$3,390.00
OS Giken SuperLock Differential & 4.06:1 ratio ring gear - NSX, all years
[dpp-333]
$2,490.00
OS Giken SuperLock Differential & complete 4.62:1 final drive gearset - NSX, 6-spd
The innovative OS Giken Limited Slip
Differential combines the advantages of a helical gear type differential
with a clutch pack differential. Maximum torque can be transferred to a
corner's inside wheel increasing traction and cornering speed. The OS
Giken's patented locking mechanism allows the differential to smoothly
transfer to full locking performance with throttle application.
NSX, all years
