Tial Q Blow Off Valve 11 Psi Spring
- Brand: Tial
- Part #: Q.11X
- Adjustable: No
- Color: Silver, Red, Blue, Black, Purple
- Design: Diaphragm
- Includes Gasket(s): No
- OEM Replacement: No
- QTY: 1
- Valve Type: Atmospheric
- Mfgr. Warranty: Limited Lifetime Warranty
The spring pressure in the valve does not correlate with the amount of boost pressure you want to run. The size spring you need is determined by your engine vacuum at idle. Please refer to the charge below to select the right pressure for you.
ENGINE VACUUM READING SPRING COLOR SPRING RATE -22 and -23 in/Hg Brown -12 PSI (-24 in/Hg) -20 and -21 in/Hg Yellow -11 PSI (-22 in/Hg) -16 and -19 in/Hg Un-painted -10 PSI (-20 in/Hg) -12 and -15 in/Hg White -8 PSI (-16 in/Hg) -8 and -11 in/Hg Black -6 PSI (-12 in/Hg)