Upgrade your Nissan 180SX or Silvia S13, S14, or S15 with the Nismo Reinforced 6 Speed Transmission Assembly from Terra Firma Automotive. This transmission, based on the S15 6-speed transmission, is engineered to deliver an unparalleled high-performance driving experience with an ideal gear ratio and enhanced gear strength. Designed with both drift and street driving in mind, this Nismo transmission offers the perfect balance of performance and reliability.
The Nismo Reinforced 6 Speed Transmission Assembly features a refined gear ratio that enhances driving enjoyment. The first and second gears are brought closer to the third gear, and the sixth gear ratio is closer to the fifth gear. This adjustment provides a smoother transition between gears, improving both performance and drivability. Unlike many competition gears that focus solely on strength and ease of production, resulting in noisy and rough operation, Nismo has meticulously designed gear ratios that facilitate normal street driving without compromising performance.
One of the standout features of this transmission is its improved gear strength. By altering the gear ratio and increasing the gear's diameter, Nismo has significantly enhanced durability. Where gear ratios remain unchanged, the module is fortified by reducing the number of teeth on both the counter and main gears and increasing the size of individual teeth. This design minimizes thrust power shock to the front of the counter-shaft caused by shock torque, reducing the risk of damage to the counter-reverse gear's end surface.
The Nismo Reinforced Cross Transmission also boasts superior operational feeling. By reinforcing and optimizing the gear ratio, this transmission offers a level of operation that far surpasses competition-only dog transmissions or the synchro transmissions of the past. Drivers will appreciate the smooth and responsive shifting, making every drive more enjoyable, whether on the track or the street.
While this transmission is ideal for the S15 (SR20DE), it can also be adapted for use in the S13 and S14 models. However, it's important to note that because the S15 speedometer obtains its signal from an ABS sensor, there is no speed drive gear on the transmission, which means no speedometer indications are available on the S13 and S14. To overcome this, a special speedometer drive gear is available separately and must be attached for proper speedometer functionality in these models.
For those seeking faster track times, the stronger gears and shorter ratios of the Nismo Reinforced 6 Speed Transmission Assembly offer a significant advantage. It is a complete transmission, excluding the shift lever parts and mounting parts, but the S15 can utilize OEM shift lever and mounting parts from the original transmission. When installing this transmission in an S13 or S14, additional parts such as a specific propeller shaft, mounting kit, and clutch kit designed for the S15 Spec R (6MT) may be required, though some of these parts are now discontinued.
Choose the Nismo Reinforced 6 Speed Transmission Assembly from Terra Firma Automotive to elevate your Nissan 180SX or Silvia's performance to new heights. Order now to experience the thrill of precise, high-performance driving with the confidence and quality that only Nismo can deliver.
Ships in original Nissan box. This items must ship freight truck and shipping ranges from $100-$400 dollars depending where you are in the lower 48 United Sates. While we do not ship this item outside of the US or Canada, buyer may arrange international shipping through his own carrier. Once purchased, there are no cancellations. Upon delivery, make sure you inspect the full assembly before signing for it for any damage. Once you sign for this unit upon delivery, we can no longer file any damage claims with the truck company and you are assuming responsibility for the items condition. Any damages must be noted, serve damage should be refused delivery. Terra Firma recommends delivery to a place of business since residential delivers can increase fees dramatically. Mechanic shops are recommended also so they can properly inspect the panels for any damage. Please contact us for a freight quote.
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