FixVault

Valve Spring

WARNING: This page is about a different car, the 2007 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
VALVE SPRING SPECIFICATIONS

Free height mm (in) 46.90 (1.8465)
Pressure N (kg, lb) at height mm (in) Standard 166 - 188 (16.9 - 19.2, 37.3 - 42.3) at 37.0 (1.457)
Limit 378 - 426 (38.6 - 43.5, 85.0 - 95.8) at 27.8 (1.094)
Out-of-square mm (in) Less than 2.0 (0.079)