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Tomei 0.2mm 8pcs SR Series Valve Spring Seat Set Nissan 13 Silvia | 14 Silvia | 15 Silvia | 180SX 1988-2002 - TA305A-NS08A

Tomei TA305A-NS08A Valve Spring Seat Set

The Tomei TA305A-NS08A Valve Spring Seat Set is engineered for precision and performance in high-revving applications. Designed specifically for the Nissan SR20DE and SR20DET engines, these valve spring seats are a critical component for those looking to optimize their engine's performance at elevated RPMs.

Key Features

  • Material: Crafted from oil-tempered chromium-silicone alloy steel, known for its superior fatigue resistance and durability.
  • Design: Utilizes an advanced oval wire design that allows for greater compression, making it compatible with both stock and aftermarket high lift camshafts.
  • Surface Treatment: Nitriding process enhances surface compression repulsion, significantly increasing the fatigue limit, ideal for high lift camshafts and extreme RPM conditions.
  • Performance Tuning: Allows for precise adjustments in spring load, ensuring uniform specifications across all valve components, which is essential for maintaining engine performance under load.

Installation Notes

When installing the Tomei TA305A-NS08A Valve Spring Seats, it's crucial to ensure that the load applied to each spring is balanced. This will prevent issues such as surging or sticking under load, which can lead to power loss or even catastrophic engine damage. The valve spring seats aid in adjusting the spring load back to optimal specifications, allowing the engine to rev freely.

Compatibility

  • Nissan 180SX (1989-1999)
  • Nissan 240SX S13 (1989-1994)
  • Nissan 240SX S14 (1995-1998)
  • Nissan Silvia S15 (1999-2002)

Performance Benefits

  • Enhanced reliability at high RPMs, reducing the risk of valve float.
  • Improved initial response and durability against metal fatigue.
  • High sag resistance, ensuring consistent performance over time.
  • Minimized resonance and surging through optimized spring rates.

The Tomei TA305A-NS08A Valve Spring Seat Set is a must-have for any serious Nissan SR20 engine build, ensuring that your engine can handle the demands of high performance without compromising reliability.

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Who is Tomei?

Tomei is one of the most recognizable brands when it comes to performance tuning. The company started in 1968 by Mr. Seiichi Suzuki and initially tuned race cars. Their concept is “To produce a great product for ultimate driving pleasure” which has translated into all their parts, making it a sought-after brand worldwide. Today, Tomei is used by various enthusiasts, tuners, professional drivers, and racers everywhere.

Racing Heritage

Tomei has its roots firmly attached to motorsports racing. With its experience in creating fast cars for decades, it was able to create parts that are considered as one of the most.sophisticated and technologically advanced parts in the market. Not only does it produce power. It ensures that it maintains its reliability as well.

The company offers a wide range of products, ranging from engine components such as camshafts, valve springs, pistons, connecting rods, cam gears, gaskets, limited slip differentials, exhaust systems, and more. Their parts are designed to perform well, not only on the streets, but on the track as well.

They have various race track records under their belt to prove it.

Purchase Tomei Products at Vivid Racing

If you want to upgrade the performance of your vehicle, then Tomei is the right brand for you. The company has consistently provided its customers with high-perfromance products that deliver what it promised. Using only the highest quality of materials available, which includes Titanium, they are able to develop parts that are strong and lightweight. This is the formula for a better performing engine. Visit Vivid Racing and check out their list of products that would fit your specific requirement.

















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Sale price None
Wholesale price $9.09
Shipping Weight: 1.00
Length: 10
Width: 6
Height: 1
Product Added At Sunday 30 July, 2023
Product Modified At Monday 23 June, 2025
Imported By ETLOverride
Last Edited By kathI@vividracing.com
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