Exoracing Brass AN04 Turbo Oil Feed Restrictor 0.9mm

A brass 0.9mm (0.035") oil feed restrictor with an AN04 to 7/16"-24 UNF thread, 29mm long overall with 12.5mm on both the AN04 and UNF ends. It is a universal fitment for most aftermarket turbos and is used with a compatible AN04 oil feed line. Weight is 19g.

• Machined from high-quality brass, 29mm long overall with 12.5mm on the AN04 end and 12.5mm on the 7/16"-24 UNF end, weighing 19g.
• Restrictor hole size is 0.9mm/0.035", with an AN04 to 7/16"-24 UNF thread and a screw-in design.
• Universal fitment for most aftermarket turbos, for use with a compatible AN04 oil feed line.
• Exoracing states that oil pressure entering a ball-bearing turbocharger should be between 40psi and 45psi depending on brand, and that many engines run higher pressure, creating the need for 0.9mm restrictors.
• According to Exoracing, using an oil restrictor prevents oil leaks and enhances boost response by minimising oil windage in the bearing.

Check before you order

• Check your turbo thread before ordering and attempting to install

Specifications from Exoracing

Fitting notes from Exoracing

• Torque setting: Torque to 10Ft/lb and reinstall the turbo oil feed line
• Fitting: Fitted using a 14mm socket or spanner, replacing the old restrictor if necessary
• Before fitting: Ensure the turbocharger is cool to the touch to reduce the risk of injury or burns
• Before fitting: Drain the oil to reduce the risk of spillage and remove the oil feed line from the turbocharger
• After fitting: Fill the car with oil, run the turbo through a few cycles and periodically check for leaks
• Installation: Professional installation is recommended
• Overtightening warning: Do not overtighten as this could strip the turbo threads or snap the fitting; torque to 10 Ft/lb

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