The 14” Chase Bays Tucked Radiator for Nissan 240sx Silvia S chassis and Skyline R32 is designed for those wanting to open up space in their crowded engine bays and get a better look aesthetically. This radiator is a cooling upgrade, it offers more fluid capacity than stock, more direct airflow, and dual pass design. We shorten the radiator but add depth and width. It is mounted under the core support to open up to 6" inches of space. This radiator has been rigorously track/drift tested and is on countless show winning engine bays.
We've designed this all aluminum radiator to fill every bit of space under the core support while still being able to run (2) 12” fans if using our optional highly recommended shroud or (1) 10" fan and (1) 12” fan without a shroud. This radiator requires some light cutting of the front core support. We wanted to make the radiator as large as possible while staying under the core support. To accomplish this we had to cut into the chassis. We supply genuine PERMA-COOL brand fans. 10" fans are rated at 1,450CFM each and 12” fans are rated at 1,650CFM each. As a general rule of thumb, follow these minimum cubic feet per minute (cfm) ratings when using an electric fan as the primary cooling source on a basic engine:
• 1,250 cfm for a 4-cylinder
• 2,000 cfm for a 6-cylinder
• 2,500 cfm for a 8-cylinder
The radiator inlet and outlet have to be on the same side since it is a dual pass design. We recommend you match whichever side the upper water neck exits on. We allocate these as LHD driver or passenger side. The inlet/outlet is offered in OE style 1.38” inch, -16AN, and -20AN.
Dual Pass Design
This simply means the coolant passes through TWO times instead of ONE. Which, even more simply put means TWICE the cooling and half the size. Both inlets are on the same side of the radiator and a plate is welded inside between the two inlets. The radiator has two L brackets on each side that you bolt to your core support. This radiator doesn't use any of the OEM radiator mounting points, and it's easier to install and un-install.
Since the top of our radiator sits about 4" lower than the OEM, we have to make a new fill point. The first step is getting an inline filler neck, listed below are some the links to our inline filler necks. The way you setup the filler neck could make your hose selection easier. We recommend being on the upper water neck itself.
27.16" x 13.5" x 3" inch
Each radiator is water pressure tested to 30psi. Your radiator shouldn’t see more than 16-19psi before the radiator cap spring does its job and expands into the overflow.