|
|
| APS Dual-Vent BOV for 02-07 Subaru WRX & 04-09 STi
|
|
| APS High Volume Twin Vent Blow Off Valve for the 02-07 WRX & 04-09 STi has unique blow off valve requirements particularly when fitted with a large turbocharger. A blow off valve is a device that releases pressure from the turbocharger when the throttle is released. APS designed the APS high volume twin vent blow off valve specifically for the 02-07 WRX & 04-09 STi. It is an ideal enhancement for applications using the standard turbocharger up to large 600 hp units. With its huge capacity the APS blow off valve gives you the ultimate in turbocharger durability and improved turbo response particularly during gear changes. | |
| A mammoth 1.417 inch(36 mm) internal bore size delivers huge capacity and at full piston travel, all ports are fully exposed for maximum blow off volume. The APS twin vent BOV features 30 micron hard anodized, T6 billet aluminium body, low friction bronze piston, all stainless steel hardware including spring and Viton 'O' rings. The large primary vent is designed to plumb back to the standard entry point which ensures the best drivability during cruise conditions and cures the erratic idle and engine's rich condition (on gear changes) problems seen with after market external single venting blow off valves. And for large turbochargers running high boost pressure levels, the APS twin vent blow off valve continues to vent through to the second stage port.
|
|
The animation above demonstrates the operation of the APS High Volume Twin Vent BOV.
1. Ports Closed - Under open throttle conditions where turbocharger boost pressure is required, the BOV piston is held shut in order to supply the maximum amount of charge air to the engine
2. Primary Port Open - Under light load conditions where the throttle opening has been reduced or shut, the piston moves partially up the bore travel and opens the primary port to vent charge air back into the inlet tract. This ensures smooth engine operation and alleviates the rich condition and subsequent backfire when utilizing a BOV construction that vents 100% to the atmosphere.
3. Both Ports Open - Under high load conditions where the throttle has been shut, the piston travels fully so that both the primary and the wide mouth secondary ports open to vent the maximum charge air possible. Air vented through the primary port is routed back into the inlet tract. In addition, additional air is vented through the wide mouth secondary port to atmosphere.
|
|
|
|
Shipping costs are calculated upon checkout.
|
NOTE: This APS BOV recirculates and vents to the atmosphere
FITMENT: 02-07 WRX & 04-09 STi. |
| Description |
Part #: |
MSRP: |
Price: |
Inventory |
|
| APS Dual Vent BOV |
APS995-047-000 | $249 | $249 | 15 in stock | |
|
| Search By Part #: |
|
|
| Keyword Search: |
|
|
| Search By Brand |
|
|
Subscribe to our feed for Special Deals!
