TracTuff RBB/ RBC Swirl Pot – NSX Spec

Description

The NSX Spec variant is essentially a duplicate of the RBB/ RBC V2 swirl pot, but with options that make it unique to the swap. A 1.50″ outlet to match the factory hard lines that run up to the front of the vehicle, and options that allow you to either use a filler cap (shown) rather than a traditional radiator cap bung (assumes you have a higher one elsewhere) or even an -8 ORB port to vent to either the OEM expansion tank or one of mine that has taken its place.

This swirl pot starts with a beautifully machined 6061-T6 flange that incorporates a -16 ORB outlet port and a 1/2″ NPT heater port. You can choose to have any number of accessory bung options added to the tank in any open space. The outlet itself can be configured for a standard hose (1.50″ OD) or -20 male flare.

The hardware kit includes four M8 socket-head bolts, a 90° heater-hose fitting, a 1/2″ NPT plug, and a pair of o-rings. The swirl pot is welded so that it sits level when bolted to an engine leaned back 15°.

The space between the swirl pot and the flange makes it challenging to reach the two forward-most mounting bolts without the right tools. If you don’t already own one, you may want to add a 6mm Stubby L-Key.

NOTE: The cap bung has a 1/16″ NPT port for connection to an overflow and uses early model Honda radiator caps, such as an 88′-91′ Civic/ CRX or 90′-93′ Integra. If you are using AN lines, I recommend designing the upper radiator hose with some droop/give so the engine’s movement does not push/pull on the radiator and fatigue any parts.

If this product is used with a factory or aftermarket header tank, you will need to add a vented lid. If no header tank is to be used… I recommend a radiator cap bung (shown below).

Photo Courtesy of k24_nsx