Product Description:
Upgrade your factory corrugated plastic, failure-prone PCV breather hose with the high-performance, reliable 034Motorsport PCV Breather Hose, engineered for enhanced durability and long-lasting performance.
The PCV, or Positive Crankcase Ventilation system, on the EA839 is located on bank 2 of the engine (The right side of the engine). It is designed to ventilate the engine's positive crankcase pressure through the breather hose into the intake tract or charge air system. The breather hose plays an integral role in this ventilation system, which uses two check valves to control the flow of crankcase pressure.
How Does the PCV System Operate?
The Positive Crankcase Ventilation System on the EA839 works to remove excess pressure from the crankcase system and relies on the vacuum from the engine’s intake system to operate properly. At idle or cruising while not in boost, the engine’s charge air system operates under vacuum, drawing air in continuously. During this state, the PCV system utilizes this vacuum to release crankcase pressure into the charge air system through the connection just after the throttle body.
However, when the vehicle is under boost (during acceleration), this connection becomes pressurized, meaning it can no longer provide a vacuum source for crankcase ventilation. When this happens, a check valve in the breather hose closes off this connection, preventing boost pressure from entering the crankcase. At this point, the breather hose is able to draw vacuum from the turbo inlet connection, as this creates vacuum through a siphoning effect as the turbocharger draws air in through the intake.
Whether you are sitting at a stoplight or romping on a backroad, a properly operating PCV system is crucial for maintaining the engine’s performance and preventing harmful pressure buildup.
Features:
- Direct Replacement of the Failure Prone OE PCV Hose
- Ensures High Flow Crankcase Ventilation to Prevent Crankcase Pressurization
- Eliminates Potential Boost Leak at OE Plastic Check Valve Housing
- Supports Boost Pressures to 40+ PSI
- Compatible with OEM and Upgraded Turbocharger Inlets
- CNC-Machined, Billet Aluminum Check Valve Body (Black Anodized), with a Heat and Chemical Resistant, Durable Rubber Diaphragm
- 4-Ply, Reinforced, Silicone Hose
- Retains Factory Engine Cover
- Simple Installation
- Covered by Lifetime Warranty
