LT4 Supercharger Expansion Tank with 5psi cap & mounting bracket

Our LT4 Supercharger reservoir is the ONLY True Expansion Tank on the market designed specifically for bleeding your system of all air while allowing for thermal expansion of the fluid when hot and contraction when it cools!

Do not be mislead by improperly labeled and deceptive advertising of "Expansion Tanks" in the LT4 market.  Any tank that is mounted BELOW the Supercharger Bricks or with a sealed O-Ring Cap is NOT allowing for expansion of the fluid's thermal dynamics... they are simply auxiliary capacity tanks.  Using multiple tanks without the ability to bleed them into a true expansion tank separately from the Supercharger's Bricks, means you are introducing another location for bubbles created by the pump's operation to hide before being sent to your SC bricks.  

Our exclusive tank is specifically designed for low-pressure, water-to-air turbo & supercharging coolant systems.  Bottles sold by our competitors, IE: Edelbrock or Moroso bottles were NOT designed for low-pressure systems and typically have a 16-22 psi cap.  High pressure caps will not release thermal expansion pressure until way beyond 250º which if your MATs are that hot, you have other problems!  Our Expansion Tank features an exclusive "swirl-break" divider that removes the air from the coolant and keeps the fluid smooth and consistent for the pump to assist in automatically removing air from the system.  If purchased with our revolutionary Supercharger Heat Exchanger (SCHX), it will come with a brass high-flow ball valve to assist in bleeding the system of air from the main SCHX directly to the tank and not via the pathway through your bricks.  Patriot Motorsports is the only provider to the LT4 market to offer this option.

*This Expansion Tank comes with the bottle, bracket, mounting fasteners, cap, and the upper LT4 straight adapter/GM 5/8" straight quick connect hose adapter only.  If you would like the upper & lower hose assemblies, check the variants so we may know which hoses you will need for your system.  We sell these parts separately due to the differences in various cooling system configurations.