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Q & A.

Does my turbo require an oil restrictor?

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There were many customers who asked us if their turbos require a restrictor? Here's a brief summary of our suggestions and practices. The function of the oil restrictor is an adjustment of the oil pressure feeds into the bearing system. Ball Bearing We recommend oil pressure of the ball bearing is 40 – 45 psi at maximum engine speed to prevent damage to the turbocharger’s internals. To achieve this pressure, a restrictor with a 1.0 mm~1.5 mm orifice will normally suffice. But you should always verify the oil pressure entering the turbo after the restrictor to ensure the components function...

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Why causes shaft play?

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Shaft play is caused by the bearings in the center section of the turbo wearing out over time. When a bearing is worn, shaft play, a side to side wiggling motion of the shaft occurs.

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STS v.s. STS Advanced

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The STS (Superior Turbine Strike) turbine wheel. It will take a shorter time (decrease 5-8%) to build a boost and, at higher RPM, prevent choking easier because it's less inertia and restrictive than an 11 or 12 blades turbine. The STS Advanced ceramic dual ball bearing technology improves the response speed (time needed to build boost) 10-15% as well as being more durable due to the improved shaft dynamics control. The increased power comes from the enhanced design. It utilizes an inner and outer race with rollers or balls between the two races. The inner race is pressed onto the turbo shaft, and the outer race is pressed into...

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How to tell at a glance that it is a counterfeit?

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The best way is the Kinugawa anti-counterfeit tag comes with the balance reports or user's manuals. But the anti-counterfeit tags must download the specific app to verify yours, it really takes time and privacy issue we realized.     kinugawa anti-counterfeit tag on the balance reports There are 3 summary easy ways you can take action. 1. The actuator type: Our head of actuator type is 6-bolts fixed not as yours such as turb*smart look.  2. The brand iron tag: The pins aligned centrally on the brand iron tag. 3. The MSRP: For example, Subaru WRX STi model, The ball bearing systems , The list...

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When will your customerized turbochargers be shipped?

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We offer a customized your own turbocharger service so that not all complete turbochargers will be stocked ready to ship but all assembly parts will be available when you can drop down the part menus and not indicate "sold out". Please kindly wait for the labor of 3-5 working days and we will ship your order by DHL Express. It usually takes 3-7 days after shipment you can get the turbo. Generally speaking, you will get the customized turbochargers within 6-12 days after your payment is completed. If you have any questions just contact me by Facebook Messenger on our...

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