Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Valve Spring

Valve Spring
Free Length 52.9 mm (2.08 inch)
Installed Height (Exhaust) 45.75 mm (1.8 inch)
Installed Height (Intake) 45.75 mm (1.8 inch)
Pressure (Closed) 340 N at 45.75 mm (76 lb. at 1.8 inch)
Pressure (Open) 980 N at 33.55 mm (220 lb. at 1.32 inch)