BMW M50 / M52 / S50 / S52 Valve Spring Kit – SuperTech

80 lb Seat Pressure

• Seat: 80 lbs @ 35.70mm

• Open: 195 lbs @ 10mm

• Max Lift: 12.70mm

• Spring Rate: 11.50 lbs/mm

• Kit Qty: 24 pcs

94 lb Seat Pressure

• Seat: 94 lbs @ 35.70mm

• Open: 209 lbs @ 10mm

• Max Lift: 12.50mm

• Spring Rate: 11.50 lbs/mm

• Kit Qty: 24 pcs

🔹 Which Option Should I Choose?

• 80 lb option – Ideal for street builds, mild cams, NA setups, and moderate RPM

• 94 lb option – Recommended for aggressive cam profiles, higher RPM, turbo/supercharged builds