What are the drawbacks of the standard system?
The standard system can cope with the requirements of a standard road car when driven at moderate speeds. If the turbocharger boost level is increased, so is the level of blow-by, and the sizes of the standard pipework naturally restrict the flow levels. If the pipework is unable to sufficiently vent the crankcase, the problems outlined above may occur. If improvements are made to the suspension or braking systems on the car, there is a greater risk of oil surge occurring and overloading the standard system. As the standard system vents back to the air filter, any oil expelled may be drawn back into the engine & burned. Burning oil inside a high performance engine is not recommended, and can often lead to detonation. The detonation can lead to deterioration of the piston rings which in turn will increase blow-by. The increase in blow-by will in turn make the engine expel more oil into the air filter; a vicious circle! Also, as wear occurs inside the engine due to use, piston ring blow
