TracTuff Application Specific Dual Pass Radiator

UPDATE: 4/25/25 I am no longer able to get 1.50" deep by 24.00" wide by 14.00" or 16.00" tall cores under the "house" option. Those dimensions are used in the EG, DC2, and EK radiator designs and were the closest option to a 1.65" deep C&R/ PWR core. I can get 2.25" deep cores, however the additional size/ capacity is inappropriate for most applications, and the increased size makes them more expensive than the C&R/ PWR core.

 I will only offer the budget house core in 21.00" wide designs. Email if you would like to order a product with the narrow core.

TracTuff application-specific radiators are excellent general-purpose radiators, capable of cooling the most demanding applications. All radiators are made to order, giving you total control over the design. Options include single pass, double pass, and triple pass. Standard 1.25", 1.365", 1.50" slip hose connection or -16 and -20 male flare/  Wiggins connections. Billet tank options are configured here.

Understanding the number of rows (not cores) a radiator has does NOT automatically make it BETTER than a radiator with fewer rows. A single 42mm tube found in the 1.65" deep C&R/ PWR core is almost the full thickness of the core itself. Translating to more cooling fins to transfer tube surface contact, significantly increasing efficiency, which does not stand true for many multi-row cores that fall under the same core width. 

In other words, a multi-row 42mm core will be LESS EFFICIENT due to the dead space between each row vs. one with a single row. I have personally cut up other brands' radiators just to see their tech, and here you can see the  4mm gap between the two rows. Understand that it is 4mm over 24.00" length x 43 tubes (on the EK/ DC2 core) that is NOT carrying water and NOT coming in contact with fins, and NOT dissipating heat. 

1. The core tubes hold more fluid than an equally sized 42mm core with multiple tubes.

2. The continuous width of the 42mm tube allows the 7mm fin at 18 fins per inch (FPI) cooling fin pack to make more contact with the tubes.

3. The increased fin contact increases efficiency by transferring heat from the fins to the passing air.

4. The optimized louver pattern and design of both the C&R/ PWR have been proven to outperform standard automotive designs and incorporate a folded leading edge for increased durability.

NOTE: Single pass radiators place the inlet/ outlet on opposite sides. Dual pass radiators place the inlet/ outlet on the same side. Triple pass radiators place the inlet/ outlet on opposite sides again. Radiator cap bungs can be added to either side. If you are not adding a radiator cap bung to the design, I recommend adding a vent to get trapped air out. The drain can be placed on either side, but I recommend choosing the opposite side from the outlet to reduce crowding. Accessory bungs are reserved for things like pressure, temperature, turbo feed, oil cooler feed, or a fan switch. 

Applications that have front core support braces and/ or hood latch assemblies must be cut out to fully tuck the radiator under the upper core support. All radiators are meant to maximize the available space for the best combination of static air flow while the vehicle is in motion, as well as the highest flow possible when the fan is on. Some traction bars screw with the mounting... and I cannot accommodate for the various design differences without having your traction bar present. You can either ship the traction bar, or I can leave the lower mounting to you. 

DC2 Fitment Example - Note: The top of the radiator can be tucked under the upper core support, but the core support and latch assembly must be removed and the radiator tilted forward 6°. OEM mounts are used to get the fitment shown below. If you want a more flush fitment... I must machine a much larger diameter lower location pin, which would serve as a spacer as well as a location pin. Email after your purchase to be invoiced for the change.

EK Fitment Example - NOTE: The top of the radiator can be tucked under the upper core support, but the core support and latch assembly must be removed and the radiator tilted forward 6°. ASR brackets must be used in order to get this fitment.

Terms associated with radiators...

SINGLE PASS - A single pass core, coolant enters either tank, makes one pass through the core, then exits through the other tank.

DOUBLE PASS - A double pass radiator, the inlet and outlet are located on the same tank. There is an internal baffle that separates the tank in half. Hot coolant enters the inlet and is routed across half of the core and then back across the other half of the core before exiting the outlet. Double pass is also used for efficient packaging and plumbing of the cooling system.

OPEN - Open means the radiator has a radiator filler neck and cap built into it.

CLOSED - Closed means the radiator does not have a fill neck and cap on it and likely uses a filler neck, a fill pot, a swirl pot or a header tank for remote filling. “Closed” systems are typically used when the radiator is not the highest point in the coolant system.

CROSS or HORIZONTAL FLOW - Coolant enters a cross-flow radiator through a tank located on the left or right side of the core. The coolant flows across the core into the opposite tank.

DOWN or VERTICAL FLOW - Coolant enters a down-flow radiator through a tank located on top of the core. The coolant flows into the upper tank and down to the lower tank.