Radium Engineering PCV Catch Can Kit | Mazda RX-7 FD3S (20-0977-FL)

A rotary runs oil through the engine by design. The PCV circuit sends what is left straight back to the intake.

The Radium Engineering PCV Fluid Lock catch can kit for the Mazda RX-7 FD3S pulls oil and water condensation out of the crankcase gases before they reach the intake manifold. Closed loop, so it does not vent to atmosphere: filtered air routes back to the engine to be burned, keeping it emissions and track legal.

What You'll Feel

• An intake tract that stays clean instead of glazing with oil film
• On a turbo 13B, an intercooler that keeps its efficiency rather than collecting oil
• Fluid Lock protection: the can cannot overfill and dump contaminants back into the intake
• A closed system that passes tech and keeps oil smell out of the cabin

Features

• Patented Fluid Lock system preventing reservoir overfill
• 7 fluid ounce can with O-ring sealed dipstick
• Large 10AN ORB inlet and outlet ports, 4AN ORB drain port
• 2-step oil separation baffling
• Vehicle specific anodized mounting bracket

The Details

The PCV hose sees metered vacuum at idle, steady cruise, and deceleration, drawing crankcase vapour, unspent fuel, and oil residue into the manifold right after a hard run. On a rotary that already meters oil into the combustion process, keeping the induction side clean matters for consistent charge quality.

No fixed emptying interval applies: check the dipstick at three to four weeks and set your own schedule from what you find.

Kit Includes

• Fluid Lock catch can with integrated dipstick
• Vehicle specific anodized mounting bracket
• Hose, hose ends, and adapter fittings
• Stainless steel mounting hardware

Applications

• Mazda RX-7 FD3S