General Information

The Greddy S-Type Blow Off Valve.
Most recent BOV in service,
removed during ModFest.
R-Type on tap.

Per Greddy's page on BOVs:

Turbo lag is the enemy of any turbocharged vehicle. Our Blow Off Valves are easily adjustable to prevent both premature boost leakage and compressor surge. Each is made of durable cast and billet aluminum frame, and the valve to diapharm ratio provide preformance that cheep piston types can not offer. The spring stiffness adjustment screw and the two different sizes give the GReddy user the option to match vehicles with mild upgrades to heavily tuned engines. Also available in easy to install kit form for most Japanese turbocharged vehicles.

BOV Part #s

Greddy

• Part #370101 Type R [standard spring valve]
  $200.00
  Special thanks to Chris Jensen* for this nice favor. Side note: He also included a hose fitting that I destroyed while test-fitting it. The threads sucked. I torqued on both pieces to get them separated, so I hope the valve body didn't distort from all those gyrations. *Chris Jensen's Amazing Website


• Part #11501650 Type S Universal
  Valve only.
  $227.27


• Part #11511011 Supra Turbo 1987-92 Type S kit
  Includes adapter- IC pipe with mounting flange
  $290.91
• Part #11900451 Aluminum weld-on Flange
  $34.45


• Part #11900482 Outlet Adapter 19mm
  Allows re-routing of BOV outlet to the intake.
  [necessary for AFM'd engines]
  $15.00

Bosch OEM Replacement

• Bosch [Saab] BOV Part #0 280 142 103
  Common replacement for OEM BOV.
  $37.00
• 1" to 3/4" hose Part #GAT 20906
  Adapts BOV to both accordian hose & intake inlet.
  Makes installation of Bosch BOV very convenient.
  $14.36

R-Type Pre-Install Pics

Greddy R-Type Blow Off Valve

All hail.
Greddy R-Type BOV.

Installation Pics

Most Recent Blow Off Valve

Greddy S-Type BOV.

Greddy S-Type BOV faceplate.
Water spots are from the wash it'd just received.

Open end of the Greddy S-Type BOV.

Greddy S-Type BOV in relation to its surroundings.

Last shot of the Greddy S-Type BOV.

Installed with blow off re-routed to the intake.

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Previous Bosch Compressor Bypass Valve

This is the previous setup, using the Bosch-Saab unit. What a fu<#ing waste of time.

Bosch-Saab unit, pic #2.

Bosch-Saab unit, pic #3.

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