TracTuff RBB/ RBC Swirl Pot - NSX Spec

TracTuff RBB/ RBC Swirl Pot - NSX Spec


Essentially a duplicate of the RBB/ RBC V2 swirl pot but with options that dont make sense to list on the FWD listing. The NSX Spec product shown here has a 1.50" outlet to match the factory hard lines that run up to the front of the vehicle, the option to use a filler cap rather than a traditional radiator cap bung, and a vent at the top of the tank that gets routed to a header tank (much like my race style swirl pot) like the C30/ C32 cooling system did from the factory.

The swirl tank starts with a beautifully machined 6061-T6 flange that incorporates the largest port possible within the OEM gaskets footprint and incorporates a 1/2" NPT heater port. You can chose from a list of options to make the product as unique as your project; including outlet position, accessory ports for aftermarket sensors and/ or turbo and wastegate feeds, and radiator cap bung types. 

If you choose a traditional radiator cap bung, the domestic cap bung has a 1/8" NPT port and the import version has a 1/16" NPT for connection to an overflow. The domestic version uses any early model (late 70's Chevy C10 Pickup w/ 454) cap and the import version uses early model Honda (88'-91' Civic/ CRX and 90'-93' Integra) cap. 

NOTE: Made to Order - Contact for ETA - If you are interested in a specific design that varies from this, please email us at If using AN lines we also recommend designing the upper radiator hose so that there is droop/ give so the engines movement and does not push/ pull on the radiator and fatigue any parts. The billet neck has a 1/2" NPT heater port and the hardware kit includes a 90° hose fitting and a plug in the event you don't plan on connecting a heater hose. Do not select a header tank vent if you have chosen the tank lid with the vent... they do the same thing and the options are only listed for those that have selected either a filler cap or a radiator cap bung. The header tank must be mounted higher than the swirl pot and the vent should enter the top half of that tank. A fitting should exit the bottom of the header tank and be routed to the original water bypass port on the thermostat housing. The original water bypass should be eliminated in favor of this combo.