A blow off valveinstall can be a fairly easy process depending on your car, but by doing so you can maximize your engines performance while also extending it’s life. A blow off valve (BOV) is a valve that is designed to expunge excess air prior to it being re-circulated into the turbocharger, thus reducing stress on the engine by relieving unwanted pressure and compression surge. Here are several tips to help you during the installation process.
Always disconnect and remove the battery prior to installing a blow off valve. While you may be able to complete the installation without doing so it is always an extremely good idea to disconnect the battery to any work inside the engine compartment, for your safety.
An auto repair manual will be extremely helpful, especially in locating your existing re-circulating valve, which will be replaced by your new blow off valve.
Any vehicle with a mass airflow sensor may require additional work to your engine control unit (ECU). Most of these aftermarket ECU units, or modifications, can be quickly installed to assist in ensuring your engine runs properly after the modification.
Installing an aftermarket BOV may void warranties on your vehicle, something you should be aware of ahead of time.
Installing a BOV on an unmodified, stock turbo car will be minimal at best.
Engine bog is common between gears, it means the valve is working properly.