OS Giken OS-88 Six Speed Sequential Gearbox Standard ratio R32 R33 R34 Skyline
This sequential transmission was designed to specifically fit the engine characteristics of Nissan's RB26DETT engine to allow it to perform to its maximum potential. To withstand the incredible punishment a race tuned RB26DETT is capable of delivering to the drivetrain, OS Giken engineered and manufactured a reinforced transmission case made from high-quality forged materials. By optimizing gear size and settings, they have increased the gear axis distance to 88mm, resulting in a 6-speed sequential transmission capable of withstanding up to 1500 horsepower. In addition, the unique dog link mechanism enables accurate shift changes, as well as provides a positive shift feel. Each unit is hand made and thoroughly examined to exacting standards prior to shipment to ensure the highest quality.
The OS88 is comprised of synchro-less helical cut gears and is the perfect complement for a tuned RB26DETT motor. It can be ordered with 4 different sets of gear ratios to suit almost any engine power profile and racing purpose. They also offer an assortment of optional parts to provide the ultimate solution for the serious racer.
- Standard: 1st ? 2.609 / 2nd ? 1.934 / 3rd ? 1.521 / 4th ? 1.210 / 5th ? 1.00 / 6th ? 0.852
- Option ratio 1: 1st ? 2.609 / 2nd ? 1.934 / 3rd ? 1.521 / 4th ? 1.210 / 5th ? 1.00 / 6th ? 0.785
- Option ratio 2: 1st ? 2.890 / 2nd ? 1.981 / 3rd ? 1.468 / 4th ? 1.174 / 5th ? 1.00 / 6th ? 0.757
- Option ratio 3: 1st ? 2.516 / 2nd ? 1.865 / 3rd ? 1.468 / 4th ? 1.174 / 5th ? 1.00 / 6th ? 0.822
- Standard ratio
- 1st: 2.609 / 2nd: 1.934 / 3rd: 1.521 / 4th: 1.210 / 5th: 1.00 / 6th: 0.852
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