The Turbosmart OPR is a regulator of oil pressure designed for turbochargers. Turbochargers generally require engine oil supplied at pressure from the engine. Turbochargers have a target window of oil pressure to operate efficiently and safely. Engines typically have an oil pump to provide many parts of the machine, including the turbocharger. However, these pumps generally increase pressure and engine RPMs increase. This is exaggerated on modified; high-performance, and race engines where high base & overall engine oil pressure are achieved and desired by other engine areas, such as crankshafts and camshafts. The role of the OPR is to down-regulate the supply of oil to the turbocharger to better suit its needs.

Turbochargers are designed with a balance in mind, and the oil pressure is considered with this. Within the centre cartridge of the turbocharger, some seals separate the engine oil, bearings and shafts with the exhaust gas and intake charge. These seals are not rubber like you think, but rather a gas ring, more like what is found on a piston. The profile of these seals is designed around an assumption of oil pressure, and when over this pressure, the oil can compromise the seals. The most common symptom is when an engine smokes excessively, caused by engine oil passing the seal and entering the exhaust gas.

The OPR V2 Oil Pressure Regulator is an inline, return-less design that simplifies installation. The same ability to regulate oil pressure is achieved through a Patent Pending oil control strategy within the unit. It is no longer necessary to install a return line like the original OPRt40 to achieve the target oil pressure. The OPR V2 also includes a built-in Stainless Steel 44 Micron Mesh Filter to help safeguard your turbocharger. Another improvement in the new OPR V2 means a fitting kit is no longer required as the units are machines with Male -4AN inlet & outlet, which is yet another part that is no longer needed, increasing the value and easing installation. The OPR V2 from Turbosmart will fit inline to your turbocharger just like a traditional oil filter & will do so much more!

The OPR V2 will achieve 40 psi +/- 10% dependant on several variables, primarily concerned with the grade of engine oil used and its operating temperature. The great news is the entire window of oil pressure the OPR is spec’d to product is well within the design parameters of all known Ball-Bearing Turbochargers. As many journal-bearing turbochargers, as we have found supporting documentation on. We cannot guarantee that this will suit every turbocharger ever produced, as the data to support that claim is unavailable. However, if you have any doubts, you can check with your manufacturer of yours and you will see, this is almost certainly suitable.

This refers to the quality of oil flowing out of the OPR V2 Oil Pressure regulator. If you are concerned the oil is bearing aerated or the quality of the flow is compromised as a by-product of the regulation, don’t be. It’s not and we have designed it not to impact the quality of flow & validated this at feed pressure several times higher than any engine can produce.

There are a few reasons.

The first is these regulators are dynamic, whereas a restrictor is static. A restrictor can modulate oil flow, it simply reduces it with the hope of achieving the required pressure and cannot compensate for oil temperature, oil grade or the increase in pressure as a result of engines operating at higher RPMs or with high performance (hi-pressure) oil pumps. The OPR, on the other hand, can & does.

Aftermarket turbocharger installs mean no restrictor off the shelf suits your variables without trial and error. You could guess lucky, but it would be a guess & is still limited by the grade, temperature and increase in pressure due to RPMs and pump changes. The OPR V2 handles all this for you, installing no different from an inline oil filter.