Details
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