Supertech Dual Valve Spring Kit 64 lb Subaru EJ20 / EJ25 Turbo WRX / WRX STI

Supertech Dual Valve Spring Kit 64 lb - Subaru EJ20 / EJ25 Turbo - WRX / WRX STI

Supertech dual valve spring kit for the turbocharged EJ20 and EJ25 DOHC engines in the Subaru WRX and WRX STI, Forester GT / XT and Liberty GT. It is a matched set of 16 springs, retainers and spring seat locators, rated at 64 lb @ 35.6mm on the seat and 199 lb @ 11.5mm open, for camshafts up to 15.30mm of valve lift. The dual (inner and outer) spring gives more seat and open pressure than the factory spring, to stop valve float with bigger cams and more boost.

Note: Not for the 2015-on WRX (VA), which has the FA20 engine. Check spring installed height and coil bind against your camshaft before fitting. Installation by a professional engine builder is recommended.

Features

• Seat pressure 64 lb @ 35.6mm
• Open pressure 199 lb @ 11.5mm
• Max valve lift 15.30mm
• Coil bind 20.70mm
• Spring rate 12.1 lb/mm
• 16 springs, 16 retainers and 16 seat locators: a full 16-valve set

Pairs Well With

• Supertech Valve Locks 6mm 6 Degree - Subaru EJ20 Turbo / EJ25 - WRX / WRX STI / Forester / Liberty
• Supertech Polyacrylic Intake Valve Stem Seals - Subaru EJ20 Turbo / EJ25 - WRX / WRX STI / Forester / Liberty
• Supertech Viton Exhaust Valve Stem Seals - Subaru EJ20 Turbo / EJ25 - WRX / WRX STI / Forester / Liberty
• ARP 2000 Head Stud Kit - Subaru EJ20 / EJ25 DOHC - WRX / STI (GC / GD / GE / GH / GR / GV / VA) / Forester (SF / SG / SH) / Liberty GT (BE / BH / BL / BP)

Shop more: Supertech

Need help choosing parts? Contact our team at sales@chicaneaustralia.com.au.