Looking For Info On R33/r34 Drivetrain Upgrades

[gte]

Are there any aftermarket upgrades for the drivetrain?

Say a different/stronger gear set for the 5 speed box or 6 speed box? I know there is an OS Giken, who else is there and how much are they?

What about final drive ratios, by changing the ring and pinion?

[gte]

It looks as if there are 3 major companies that make upgraded gear sets or transmissions for the GTR

The question is, how much torque will they hold, and do they fit inside of the factory casing, especially the 6 speed upgrades for the r33's? Also, which one is most like a street transmission (meaning it has an "H" pattern to it and helical gears) only stronger?

For the R34 gtr, there is

OS Giken (6 speed replacement)

http://www.greenline.jp/catalogue/bccatpar...gory=drivetrain

For the R33 gtr, there are

http://www.greenline.jp/catalogue/bccatpar...gory=drivetrain

OS Giken

OS Giken Cross Gear Kit (3 speed) -(GL)DTGSR32C01

(Gear Sets) ¥212,520

1st: 2.695, 2nd: 1.703, 3rd: 1.236.

Greenline Motorsports - OS Giken 5th Gear OS Giken 5th Gear -(GL)DTGSR32C02

(Gear Sets) ¥80,388

3 Speed Cross Gear Kit option part. 5th: 0.826.

Greenline Motorsports - OS Giken Heavy Duty Input Shaft OS Giken Heavy Duty Input Shaft -(GL)DTGSR32C03

(Gear Sets) ¥61,908

3 Speed Cross Gear Kit option part. Available for standard or Holinger type input shaft - please specify when ordering.

Greenline Motorsports - OS Giken Cross Gear Kit (3 speed) Set OS Giken Cross Gear Kit (3 speed) Set -(GL)DTGSR32C04

(Gear Sets) ¥258,720

Includes heavy duty input shaft. 1st: 2.695, 2nd: 1.703, 3rd: 1.236. Available for standard or Holinger type input shaft - please specify when ordering.

Greenline Motorsports - OS Giken Cross Gear Kit (5 speed) Set OS Giken Cross Gear Kit (5 speed) Set -(GL)DTGSR32C05

(Gear Sets) ¥300,300

¥245,000

Includes heavy duty input shaft. 1st: 2.695, 2nd: 1.703, 3rd: 1.236, 5th: 0.826. Available for standard or Holinger type input shaft - please specify when ordering.

Greenline Motorsports - OS Giken RB26 6 Speed Sequential Transmission OS Giken RB26 6 Speed Sequential Transmission -(GL)DTGBOSGTR01

(Gearboxes)

1st: 2,609, 2nd: 1.934, 3rd 1.521, 4th: 1.210, 5th: 1.000, 6th: 0.852.

Greenline Motorsports - OS Giken OS-88 Transmission Member OS Giken OS-88 Transmission Member -(GL)DTGBOSGTR02

(Gearboxes) ¥43,313

HKS

HKS Manual Transmission -1603-RN008

(Gearboxes) ¥1,030,838

Version I. 6 speed. 1: 2.519, 2: 1.820, 3: 1.300, 4: 1.000, 5: 0.807, 6: 0.650. For use with HKS clutch.

Greenline Motorsports - HKS Manual Transmission HKS Manual Transmission -1603-RN009

(Gearboxes) ¥1,030,838

Version II. 6 speed. 1: 2.709, 2: 1.904, 3: 1.343, 4: 1.000, 5: 0.832, 6: 0.734. For use with HKS clutch.

Greddy

TRUST GReddy 6 Speed H Pattern Transmission (Helical Gear Type 2) -14920203

(Gearboxes)

6 speed. 1: 2.782, 2: 1.938, 3: 1.506, 4: 1.178, 5: 0.920, 6: 0.777. Final gear: 4.111. Discontinued.

Greenline Motorsports - TRUST GReddy 6 Speed Sequential Transmission TRUST GReddy 6 Speed Sequential Transmission -14520012

(Gearboxes) ¥1,295,910

6 speed. 1: 2.796, 2: 1.994, 3: 1.537, 4: 1.191, 5: 0.918, 6: 0.767. Final gear: 4.111

Greenline Motorsports - TRUST GReddy Front Cover TRUST GReddy Front Cover -14920204

(Gearboxes) ¥17,672

For use with TRUST 6 Speed H Pattern Transmission (Helical Gear Type 2)

Edited April 17, 2008 by gte