🚨 READ HERE 🚨
First Many Thanks for @gaperformance.om for the clean installation and @rossrperformance for the best product.
- Valve cover inserts ( CHECK VALVES ) for the LOW SIDE PCV ports are one of the important MODS we need to do it to the B58TU.
- First we need to know that the factory does the PCV system on this way ( return the oil vapors to the combustion chamber ) to meet the emissions rules on Europe.
- one of the reasons to block off those ports and vent all those oil vapors to air under boost is to have clean fuel and air mixture because if this oil vapor mixed with the air and fuel it will effect the fuel octane that may cause some timing corrections. Also , to prevent the carbon buildup into the intake valves after high mileage.
- the important reason is to keep the valve cover safe, we are pushing on stage2 for example 22-24psi of boost that above factory boost by 8-10psi so even on stage 2 your valve cover is on danger ⚠️. Imagine you are pushing 30psi or 40psi on a system or plastic things that designed for 14psi.
Note : it’s highly recommended to install full kit OCC with oil cap breather + valves inserts from @rossrperformance
Comments section are open if you want to add more informations or if any one wants to ask about anything.