Boost Assistance: Fragola’s Turbo Oil Restrictor Fitting

A turbocharger is able to create vast amounts of horsepower when used properly and to keep that turbo happy it will need lubrication. In all turbo applications, oil is sourced from the engine itself and that’s usually not a problem unless the oil pressure is lower than needed. To solve this issue an Oil Restrictor can be implemented and now Fragola Performance Systems makes that even easier with their D.I.Y. Turbo Oil Restrictor Fitting.

There are two types of bearing systems in modern turbos, journal bearing, and ball bearing, each are used in different applications. Journal bearing turbos don’t typically need an oil restrictor due to their design, but if they are suffering from leakage around the seal the Oil Restrictor can be used to fix the problem.  With an engine providing more than enough oil pressure to keep a ball bearing turbo lubricated it will benefit more from a restrictor. To make sure the restrictor does its job properly it is placed on the inlet side of the ball bearing turbo.

According to Bring Mclellan from Fragola, their new D.I.Y. Turbo Oil Restrictor Fitting will make adding a restrictor to a ball bearing turbo easier and provide some great benefits.

“An Oil Restrictor has been proven to shorten boost lag by decreasing windage as oil enters the turbo. It also will aid in preventing oil leakage past the turbo seals by regulating oil flow. So, the end user of an Oil Restrictor will see quicker spool times and less leakage and our fitting makes it easier to add it to any turbo. Fragola’s new 80% DIY Oil Restrictor fittings feature 1/8” NPT or 7/16-24 Inverted Flare ends that fits  popular turbo models and will accept a -3 or -4 oil supply line.”

You can check out Fragola’s website for more information about this fitting right here.

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About the author

Brian Wagner

Spending his childhood at different race tracks around Ohio with his family’s 1967 Nova, Brian developed a true love for drag racing. When Brian is not writing, you can find him at the track as a crew chief, doing freelance photography, or beating on his nitrous-fed 2000 Trans Am.
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