Radium Engineering Dual Catch Can Kit | 1989-1994 Nissan Skyline GT-R (20-590-FL)

The RB26 got a ventilation system worthy of careful measurement, crossover hose and all.

The Radium Engineering Dual Catch Can Kit for the Nissan Skyline GT-R is designed specifically for the RB26DETT with careful measurement and consideration to make a proper system: it retains a true PCV system with catch cans for both the PCV valve side and crankcase vent (CCV) side, does not vent to atmosphere so it stays emissions and track legal, provides two double-ended press-in fittings to replace the crankcase vents on the valve covers, and balances the intake and exhaust side of the crankcase with a large 10AN crossover hose exactly how the Nissan engineers intended. The PCV catch can mounts to threaded bosses on the front RH strut tower, running inline between the valve cover crankcase vents and the PCV valve on the vacuum chamber, with large 5/8" hose and 10AN fittings provided for both ends.

What You'll Feel

• Both RB26 circuits protected with the crankcase balance Nissan's engineers designed
• Intake, intercooler, and twin turbos staying clean as boost climbs
• True PCV function retained, negative crankcase pressure promoted
• Press-in valve cover fittings, no drilling or welding
• Emissions and track legality from the closed-loop routing

Features

• Dual catch can kit engineered specifically for the RB26DETT (R32 Skyline GT-R)
• PCV and CCV circuits both covered; cans function via closed loop, no VTA
• 2x double-ended press-in fittings replace the valve cover crankcase vents
• 10AN crossover hose balances the intake and exhaust crankcase sides per Nissan's design
• 5/8" hose and 10AN fittings; PCV can mounts to front RH strut tower bosses
• Compatible with the factory engine bay mounted battery; if the OEM wastegate boost solenoid is still used, it should be relocated

The Details

The RB26's ventilation is more architecture than accessory, with the twin cam covers venting into a balanced crankcase system that most catch can installs quietly break, and Radium's crossover hose is the tell that this kit was measured rather than adapted: intake and exhaust sides stay equalized while both cans do their separating. The PCV circuit flows on metered vacuum at idle and cruise, the CCV side carries the boost-era exhale, and the pressure-sealed cans handle manifold connection without extra check valves. Note the two fitment items before install day, with the factory battery location compatible and the OEM wastegate solenoid needing relocation if retained. Service both dipsticks at 3 to 4 weeks initially.

Kit Includes

• 2x Radium catch cans with dipsticks (PCV and CCV circuits)
• 2x Double-ended press-in valve cover fittings; 10AN crossover hose
• 5/8" hose, 10AN fittings, mounting brackets, stainless hardware

Applications

• 1989-1994 Nissan Skyline GT-R R32 (RB26DETT)
• OEM wastegate boost solenoid requires relocation if retained