What is the main benefit of a close-ratio gear kit?

A close-ratio gear kit tightens the RPM drop between gear shifts. This helps keep your engine in its optimal powerband more consistently, leading to improved acceleration and responsiveness, especially during spirited driving or track use.

What specific gear ratios are included in this kit?

This OS Giken kit includes a 2.717 ratio for first gear, a 1.722 ratio for second gear, and a 1.232 ratio for third gear. These ratios are designed to provide a more aggressive acceleration curve compared to stock gearing.

Does this kit include everything needed for installation?

This kit includes the specific gear sets for the transmission. However, transmission disassembly and reassembly often require specialized tools and potentially other related components like seals or gaskets. Always refer to the manufacturer's installation guide for a complete list of requirements.

1989-1998 Nissan 240SX Close Ratio Gear Kit

Name: OS Giken Nissan Silvia (S14) 3-Speed Close Ratio Gear Kit 2.717/1.722/1.232
Brand: OS Giken
SKU: os-giken-os-giken-nissan-silvia-s14-3-speed-close-ratio-gear-kit-2-717-1-722-1-2-t14-118792
Price: 2499.84 USD
Availability: BackOrder

OS Giken Nissan Silvia (S14) 3-Speed Close Ratio Gear Kit 2.717/1.722/1.232

$2499.84

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1989-1998 Nissan 240SX. OS Giken close ratio 3-speed gear kit for improved acceleration.

Key Features

Fits 1989-1998 Nissan 240SX.
Includes 2.717 first gear, 1.722 second gear, and 1.232 third gear ratios.
Tightens gear spread for improved acceleration.
Keeps the engine in its powerband between shifts.
Constructed from high-strength materials for durability.
Designed for performance driving and track applications.

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Product Details

The OS Giken NS052-GR gear kit features a 2.717 first gear, a 1.722 second gear, and a 1.232 third gear ratio. This specific set of ratios is designed to tighten up the gear spread in your transmission, allowing your 1989-1998 Nissan 240SX to accelerate more quickly through each gear. By reducing the RPM drop between shifts, the engine stays in its powerband more effectively, which is crucial for performance driving and track use.

OS Giken is well-known for its high-performance drivetrain components, and this close-ratio gear kit is no exception. The gears are precision-machined from high-strength materials to withstand the increased stress that comes with aggressive driving. This kit is intended for enthusiasts looking to extract the most performance from their transmission, offering a noticeable improvement in acceleration and responsiveness. Installation involves disassembling the transmission and replacing the factory gear sets with these updated ratios.

This kit includes the necessary gear sets to modify your transmission's gearing. It is important to note that this is a performance upgrade and may require professional installation. Ensure you consult the manufacturer's installation instructions for specific details regarding the process and any additional components or modifications that might be needed for optimal performance and reliability.