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Tomei Oil Galley Orifice TB2040-NS05A for Nissan 240SX S13, Aluminum, Black - TB2040-NS05A

Alright, let's talk about the Tomei oil gallery orifice. If you're running an RB26DETT, you probably know how crucial oil flow is for keeping everything running smoothly. The factory setup has a bit of a flaw with an orifice that's just too big, which can lead to some pretty annoying issues. We're talking about blowing engine oil, leaking through valve guides, and even insufficient oil getting to your crank journal. Not exactly what you want when you're pushing your car to the limit.

What Tomei did here is pretty clever. They've dialed down the orifice size to φ1.5mm from the stock φ2.0mm. This small change makes a big difference. It ensures that your camshaft and valves get the right amount of lubrication while keeping enough oil in the pan. This tweak helps to eliminate those pesky problems that come with too much oil flowing where it shouldn't. Plus, if you're looking to reduce blow-by, pairing this with Tomei's 3D profile pistons is a solid move.

Specifications:

  • Model: Nissan RB26DETT

Installation Instructions:

Fitment:

  • Nissan Skyline R32 1989-1994
  • Nissan Skyline R33 1995-1998
  • Nissan Skyline R34 1999-2002

Note:

  • This orifice is meant to be combined with the STD orifice for optimal performance.
  • Only for solid type RB25 and RB20 engines—don't use it on lash type RB20 and RB25 engines.

So, if you're looking to keep your RB26DETT in tip-top shape, this Tomei oil gallery orifice is definitely worth considering. It's a straightforward upgrade that can help you avoid some common headaches down the road.

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 $5.78
Shipping Weight: 1.00
Length: 10
Width: 6
Height: 1
Product Added At Wednesday 16 March, 2022
Product Modified At Monday 23 June, 2025
Imported By ETLOverride
Last Edited By kathI@vividracing.com
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Tomei Powered USA Inc $4.90 $7.35 ? ? ? 2025-06-23 11:45:37


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