TOMEI TA307A-NS05A Valve Springs RB26

( Brand: Tomei ), ( Manufacturer Part Number: TA307A-NS05A ), ( Part Type: Valve Spring )

Review TOMEI Valve Springs

Tomei Ta307A-NS05A RB26 Valve Springs

The Tomei Ta307A-NS05A RB26 Valve Springs are a high-performance upgrade for those seeking to enhance the responsiveness and reliability of their RB26 engines. Manufactured by the renowned aftermarket automotive parts specialist, Tomei, these valve springs are designed specifically for the RB26 engine found in Nissan's iconic Skyline GT-R and other R33 and R34 models.

These valve springs are constructed using Tomei's proprietary advanced alloy called "Nitroside II" which ensures excellent strength and durability. The NS05A version of these springs offer a significant increase in spring rate compared to the stock valve springs. Specifically, they provide a seal pressure of approximately 119 psi (825 kPa) or 20% higher than stock. This increased pressure ensures that the valves maintain proper seal under significant boost pressure and higher RPM, therefore, delivering improved engine response, power output, and reduced valvetrain noise.

Moreover, these Tomei Ta307A-NS05A RB26 Valve Springs feature a dual-spring design, which provides a consistent and stable valve force over the entire RPM range. Each spring has a dual-cone design, delivering a more precise valve action and reducing valvetrain friction. This leads to a smoother engine operation and reduced engine wear, which eventually contributes to a longer engine lifespan.

Installing these high-performance valve springs is a straightforward process, and they are compatible with various camshaft configurations. However, it is always recommended to consult a professional mechanic or tune shop for installation to ensure proper setup and to confirm compatibility with other upgrades, if any, in your engine.

In conclusion, the Tomei Ta307A-NS05A RB26 Valve Springs are an excellent choice for RB26 engine enthusiasts looking to unlock more power, durability, and responsiveness from their beloved engines. With their advanced design, superior materials, and race-proven track record, these springs deliver the perfect combination of power and reliability that serious tuners seek.

Tomei's Ta307A-NS05A RB26 valve springs are popular aftermarket options for those looking to upgrade the stock springs in their RB26 engines. responses below present the pros and cons of purchasing these springs, followed by a conclusion and recommendation.

1. High RPM response: The Tomei Ta307A-NS05A springs are designed to provide excellent high RPM response, making them suitable for high-performance applications and race use.

2. Enhanced durability: The multi-spring design reduces the likelihood of valve bounce and fatigue, providing increased durability and reliability.

3. Adjustability: These springs feature an adjustable spring retainers, offering the ability to fine-tune the valve clearance for optimal performance.

4. Improved performance: The Ta307A-NS05A springs provide increased lift and improved airflow into the combustion chamber, resulting in improved engine performance.

5. OEM or racing applications: These springs cater to a wide range of applications, from street driving to professional racing.

1. Cost: Compared to stock springs, Tomei Ta307A-NS05A springs can be quite expensive.

2. Installation: Installing aftermarket valve springs is a complex process that may require professional assistance. Additionally, slight differences in valve clearance settings between the stock and aftermarket springs may necessitate additional re-adjustments to the clearance.

3. Mandrel bending vs. coil bind: The Ta307A-NS05A springs may not have coil bind, but they are mandrel bent, which can lead to some gas flow restrictions within the intake port.

Tomei Ta307A-NS05A RB26 valve springs offer enhanced performance and durability for those looking to take their RB26 engine to the next level. While they come with some downsides, such as cost and the complexity of installation, the benefits of improved high RPM response, adjustability, and reliability make them a popular choice for many enthusiasts and racers.

If you are planning on pushing the limits of your RB26 engine, especially in high-performance applications or racing situations, the Tomei Ta307A-NS05A valve springs are a solid investment. However, consider your budget and technical capabilities before deciding to purchase and install these springs, as they may not be suitable for all buyers due to their cost and installation complexity. For those less experienced with engine modifications, it might be recommended to seek professional assistance for installation.

Details:

Set of Tomei type A valve springs for an RB26. Pics are the Used item next to my old stock RB26 springs. Used for less than 2000 miles. Used these when I rebuilt my RB26 to refresh the head on stock cams.

part #: ta307ans05a prices

• $285.00-$513.00

specifications voomvalve:

• brand: Tomei
• mpn: Ta307a-ns05a
• part type: Valve Spring

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• credit card: Diners-club
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offer voomvalve:

• sold: 0
• started: February 10, 2025
• quantity: 1
• availability: In Stock
• options: Ship-to-home

general voomvalve:

• Engines Engine Parts > Valvetrain Components > Valves
• condition: Used

shipping voomvalve:

• type: Fixed
• cost: $19.15
• service: USPS Priority Mail
• class: Expedited
• transit: 3-10 Days
• carrier: USPS

seller voomvalve:

• city: Jacksonville, Florida
• # reviews: 235
• rating: 100.0%

returns voomvalve:

• policy: No Returns

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