Contact ApexTurbo to obtain an RMA number before sending in your turbocharger. All service work requires an RMA to ensure proper handling and tracking.

No. ApexTurbo turbochargers must be serviced by ApexTurbo. Attempting to rebuild the turbo yourself puts the turbo at risk due to precision high-speed balancing and specialized internal components.

Yes. All ApexTurbo turbochargers include the required oil feed fitting. Depending on the specific turbocharger model and application, the fitting will be either a -4 AN or -6 AN, selected to match the turbo’s oiling requirements.

No. All ApexTurbo turbochargers feature an internal oil restriction built into the design. This means no external restrictor is required—giving you one less thing to worry about during installation.

ApexTurbo turbochargers operate best with a minimum of 60 psi of oil pressure at operating temperature.

ApexTurbo turbochargers are internally oil-controlled, so external oil restrictors are not required when the turbocharger is installed correctly.

The oil drain must point straight down (within ~10° of vertical).  Excessive rotation can interfere with oil drainage and lead to oil leakage.

Oil visible in the compressor or turbine housing is most commonly caused by installation or system-related issues rather than a failed turbocharger. Typical causes include an improper oil drain angle (the drain must point straight down, within approximately 10° of vertical), a restricted or undersized oil drain line,crankcase pressure or inadequate engine ventilation, or improper turbo clocking.

Remove the Allen-head plug in the CHRA and install the turbo speed sensor into the 3/8-24 port. Gently tighten until it bottoms out, then back off approximately 1/2 turn. Do not overtighten.