Blitz Super Sound Blow Off Vave VD Venturi Drive BOV. The purposes of BLITZ Blow Off Valve VD is to relieve compressor surge without reducing compressor speed. It controls boost pressure that is built up by the turbo and vents it into the atmosphere (some are recirculate) when the car is not under load (in between shifts). This prevents pressure from backing up into the compressor housing, causing the turbo impeller blade to rapidly stop or even worse, to spin backwards (compressor surge or backspin).
- Employs the Dual Drive System succeeded from the Super Sound Blow Off Valve DD.
- Employs high quality aluminum die-cast for the body.
- Ensured heat dissipation radiation by designing the body and funnel with ribs.
- Creates a sharp sound by adopting the Venturi effect.
- Defric Coated Piston made smooth movement even under dusty conditions.
- 36mm Diameter Big Valve with Special Rubber Seal ensured an outstanding sealing ability at high boost.
- Recirculation Flanges are available at optional in 3 diameter sizes.
| Year | Make | Model | Trim | App Notes |
| 1989 - 1990 | Nissan | Silvia | (S13) L4 1.8L CA18DET | None |
| 1989 - 1990 | Nissan | 180SX | (S13) L4 1.8L CA18DET | None |
| 1989 - 1990 | Nissan | 200SX (Non-US) | (S13) L4 1.8L CA18DET | None |
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