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Tomei Oil Gallery Orifice
Tomei

Orifice controls amount of flowing engine oil that is delivered to lubricate the parts in a cylinder head, and to cool down the engine body.

Orifice controls amount of flowing engine oil that is delivered to lubricate the parts in a cylinder head, and to cool down the engine body. However, stock oil-gallery orifice has given inadequate diameter so that too much oil is delivered to the cylinder head and problems listed below would occur.

(1) Too much blow-by Gas,
(2) Blowing engine oil,
(3) Leaking oil from valve guide,
(4) Insufficient oil delivery to the crank journal, (5) Miss-breathing air from oil pan under the horizontal G

Design of TOMEI oil gallery orifice is based on the experience of developing N1 endurance and drag racing engine. And by limiting diameter of orifice to diameter 1.5 (2.0 Normal), we succeeded in securing enough lubrication to the camshaft and valve while gaining amount of oil in the oil pan, and suppressing these problems. (To prevent blow by, we recommend using TOMEI 3D profile piston.)

 

 

This part usually ships 10 days after payment.

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Product Version Price Order
191071
Nissan Skyline BNR32, BCNR33, BNR34 RB26DETT X 1 ONLY
USD $ 8.23

Vehicle Compatibility

Nissan - Skyline - R32 GTR - BNR32
Nissan - Skyline - R33 GTR - BCNR33
Nissan - Skyline - R34 GTR - BNR34

Vehicle Compatibility

Nissan - Skyline - R32 GTR - BNR32
Nissan - Skyline - R33 GTR - BCNR33
Nissan - Skyline - R34 GTR - BNR34
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Nengun Performance
NENGUN CO. LTD
4798-455 Imazu
Nishi-ku, Fukuoka
Japan, 819-0165

Kobutsuho No.
901080810037