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Tomei Oil Galley Orifice / Restrictor - RB20 RB25 RB26 RB30

Tomei Oil Galley Orifice / Restrictor - RB20 RB25 RB26 RB30

by Tomei
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$7.00
$7.00 - $7.00
$7.00
$6.30
$6.30 - $6.30
$6.30

Tomei TB2040-NS05A Oil Galley Orifice / Restrictor - RB20 RB25 RB26 RB30

 

The Orifice controls the amount of oil flow that is delivered to the head to lubricate the parts in the cylinder head and to cool down the engine assembly. However the stock oil-gallery orifice has a hole that is too large which allows too much oil to be delivered to the cylinder head which will cause the problems as listed below. 



(1) Too much blow-by Gas,
(2) Blowing engine oil,
(3) Leaking oil through the valve guides,
(4) Insufficient oil delivery to the crank journal,
(5) Allows air pockets into the system from when the oil pan is under horizontal G-Forces. 



The TOMEI oil gallery orifice was designed from the experience and data we had obtained from the development of our N1 endurance and drag racing engines. By restricting the diameter of the orifice to ?1.5mm (Normal is ?2.0mm) we succeeded in securing enough lubrication to the camshaft and valve while maintaining the correct amount of oil in the oil pan which resolved the common problems. (For added Blow by prevention, we recommend using the TOMEI 3D Profile pistons.)

SKU TB2040-NS05A
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About Raw Brokerage

About Raw Brokerage

Founded at the beginning of 2008 in Orlando, Florida, Raw Brokerage now has coast to coast presence in Fresno, California. The company started out as a used Nissan RB engine parts website connecting enthusiasts with hard-to-find parts in the United States. Since then Raw Brokerage has expanded into two locations where it distributes thousands of new and used performance automotive parts and performs extensive car and engine builds specializing in the Nissan Skyline platform. We have accounts on over 300 brands and access to over 1,000,000 parts. Raw Brokerage focuses on its core values of integrity, value, and service. This allows our team to ensure top-level customer satisfaction that you can rely on. Regardless of motorsport, we are here to assist in getting your car to perform to its highest potential. So shop with confidence with us when looking for your next body kit, engine block, turbo, or other performance parts.

What does that mean for you?

What does that mean for you?

Our team is dedicated to more than just customer service, we are driven to provide customer success. Just like you, we are car enthusiasts looking to enjoy the process of the build, the satisfaction of the improvements, and the success at the track.

With over a decade operating in the performance automotive industry, our team has been there, broke that part, compared the alternatives, and has been part of countless projects.

Just like our cars and yours, we're a company focused on always improving. We seek to provide quality information and process your order quickly and accurately.

This is the reason why countless car owners return each day to Raw Brokerage for their aftermarket performance parts needs.

Customer Reviews

Based on 8 reviews
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M
Mark Herrera (Bowling Green, US)
mod needed

Great item. Not for the weak

Z
Zenki 95RB! (Kissimmee, US)
My local RB / Nissan guys

Raw has been one of the many companies locally in FL to support my Nissan 240 RB25det over the years.Spoke to the guys and they fixed the shipping on these oil restrictors. A much needed part fot my RB overall.
Thanks guys..

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b
bradley Meinen (San Jose, US)
They were great!!

They went into the block fine.

C
Christopher Egidi (Sacramento, US)
The best buy for the money!

Tomei quality at a great price! Thanks guys!!

D
Dennis Slenders (Eindhoven, NL)

Tomei Oil Galley Orifice / Restrictor - RB20 RB25 RB26 RB30

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Warning: Cancer and Reproductive Harm

As per California's Prop65 Laws, we are REQUIRED to warn you that the products we sell will put you near a vehicle, which emits dangerous chemicals or worse. Please review the following link before purchasing. www.p65warnings.ca.gov