HKS FA20 Camshaft Set - 2013+ FR-S / BRZ / 86

HKS FA20 Camshaft Set - 2013+ FR-S / BRZ / 86FA20 Camshaft Set for the 2013+ FR S, BRZ, and 86 The HKS FA20 Camshaft Set for the 2013+ Scion FR S, Subaru BRZ, and Toyota 86 is a performance camshaft replacement that changes the valve timing events of the FA20 to shift the power delivery toward higher RPM. The cam profile determines when intake and exhaust valves open and close, and the duration, lift, and timing of those events directly affect where in the RPM range the engine makes its best

FA20 Camshaft Set for the 2013+ FR-S, BRZ, and 86

The HKS FA20 Camshaft Set for the 2013+ Scion FR-S, Subaru BRZ, and Toyota 86 is a performance camshaft replacement that changes the valve timing events of the FA20 to shift the power delivery toward higher RPM. The cam profile determines when intake and exhaust valves open and close, and the duration, lift, and timing of those events directly affect where in the RPM range the engine makes its best power. HKS's performance cam profile extends the high-RPM power band of the FA20, which is the appropriate direction for an engine already known for its willingness to rev.

Specs & Highlights

• Performance camshaft set for FA20
• Revised lift and duration for improved high-RPM output
• Shifts power band toward higher RPM
• Designed for naturally aspirated FA20 builds
• Requires professional installation and engine calibration
• Fitment: 2013+ Scion FR-S / Subaru BRZ / Toyota 86

264°/256° or 272°/264° Duration, 10.5-11.0mm Lift

HKS offers the FA20 camshaft set in two configurations: the Step 1 profile with 264° intake / 256° exhaust duration and 10.5mm / 9.5mm lift, and the Step 2 profile with 272° intake / 264° exhaust and 11.0mm / 10.5mm lift. Both require the AVCS (Active Valve Control System) compatible design that HKS uses to maintain variable timing function. On an otherwise stock FA20, the Step 1 cams produce approximately 15–20 whp with the broadest power spread; Step 2 produces approximately 20–28 whp with a more top-end biased delivery. A retune is required for either step.

Shifting the FA20 Power Band Upward

The FA20 naturally aspirated engine benefits from camshaft work because its factory cam profiles are tuned for a broad power band and emissions compliance rather than peak performance. The HKS cam profile improves high-RPM output at the cost of some low-RPM response. The correct tradeoff for a naturally aspirated sports car engine used by drivers who value the upper rev range.

Retune Required, Best Paired with Headers and Exhaust

Camshaft installation is a significant engine job. The FA20's variable valve timing system (AVCS) must be accounted for, and the engine requires proper calibration after installation to take advantage of the revised cam events. Combined with equal length headers and a full exhaust system, the camshaft set is part of a comprehensive naturally aspirated FA20 build.

The FT Breakdown

HKS camshafts are a high-commitment naturally aspirated power upgrade. They are the correct direction for FA20 owners who are building the engine properly with matched hardware. Headers, exhaust, intake, and who want to extract maximum naturally aspirated performance. For that application, HKS's camshaft engineering is the right specification. The 15–28 whp gain range between Step 1 and Step 2 cams on an otherwise stock FA20 makes camshafts one of the highest-return naturally aspirated modifications available for this engine. Combined with equal length headers, the overlap in the power delivery improvement creates an FA20 that revs with considerably more authority than the factory tune allows. The retune requirement is the commitment that makes camshafts an advanced modification rather than a bolt-on.