HKS Camshaft kit - FA20 Toyota GT86 Subaru BRZ

HKS Camshaft for FA20 compatible with Applied E Model. With HKS Capacity Upgrade Kit, smooth torque increase is expected.

The camshaft design software developed for the locker arm enabled to design high speed valve that is hardly made by other manufacturers. To realize the design by this software, grinding by custom-made small-diameter grindstone was performed to create highly accurate concave camshaft.

To avoid a power loss by a direct ignition fuel pump, small cam lobe design was adopted from the Applied E model.

The lift was increased to the limit of the valve spring while considering surging. The designated valve timing is equivalent to the stock since the variable valve timing unit's operation angle still has some spare angle.

Due to the valve opening/closing speed increase and duration enlargement, using the camshaft variable angle maximally may cause insufficient VP (clearance between the valve and piston) resulting in unnecessary contact of the valve and piston. To avoid this unnecessary contact, use HKS Capacity Upgrade Kit which piston recess shape matches with this camshafts.

STOCK

HKS

INTAKE

EXHAUST

INTAKE

EXHAUST

Duration

255

252

260

266

Max. Valve List

mm

11.00

11.00

11.70

11.70

Clearance
(Camshaft - Locker Arm)

mm

0.13±0.03

0.24±0.03

←

←

Valve Timing

Most Advanced Angle

82

81

←

←

Most Lag Angle

150

135

←

←

VVT Max Variable Angle

68

54

←

←

Valve Spring

STD

STD