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Forge recommends the Yellow spring ..... Posted by REM in Seattle [Email] (#4) [Profile/Gallery] (more from REM in Seattle) on Wed, 4 Oct 2006 21:02:27 In Reply to: Viggen BPV questions, Seth, Wed, 4 Oct 2006 17:55:28 Members do not see ads below this line. - Help Keep This Site Online - Signup |
for the Viggen or when using a modified ECU on a NG900/9-3.
From the Forge Motorsport website:
"Valve Spring color coding
Green - 5-15 PSI
Yellow - 15-23 PSI
Blue - 23-30 PSI
Red - 30 + PSI
The above figures are estimates only and should only be considered as a guideline
Please note - fitting a stronger spring into a valve will not increase boost pressure unless existing pressure is being lost. Failure to allow the valve to operate by installing a spring which is to strong may cause damage to the turbocharger."
REM in Seattle
2005 Saab 9-3 Aero Convertible; Steel Gray metallic; 5-speed; 11,000 miles
1998 Saab 900SET; Silver metallic; 5-door; Automatic; 87,000 miles
1984 Saab 900T; Cherry Red; 3-door; 5-speed; 242,000 miles (RIP)
_______________________________________ REM in Seattle Current: 2013 Volvo XC60 R-Design, Rebel Blue, 3.0L 6-cyl turbo, Automatic 2024 MINI Cooper S Convertible, 2.0L 4-cyl turbo, 6-speed manual Former: 2005 Saab 9-3 Aero Convertible, Steel Gray metallic, 2.0L 4-cyl turbo, 5-speed 1998 Saab 900SET 5-door, Silver, 2.0L 4-cyl turbo, Automatic 1991 Alfa Romeo Spider convertible, Alfa Red, 2.0L 4-cyl, 5-speed 1984 Saab 900T 3-door, Red, 2.0L 4-cyl turbo, 5-speed
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