Effective, Real world, Race & Street Proven Parts & Accessories

Here are some Hints and Tips on how to plumb and connect our overflow, surge and reservoir tanks for maximum performance and efficiency. Overflow tanks catch excess coolant from emptying onto the ground. Recovery tanks temporarily hold excess coolant when hot, and return it back to the engine when cooled off to maintain topped off engine coolant levels and prevent air space in the engine's coolant passages.

CHECK OUT
OUR BILLET
ALUMINUM
OVERFLOW
TANKS
(click right)

Our tanks used in two different Coolant modes...

FROM RADIATOR CAP OVERFLOW

EXCESS
COOLANT
OVERFLOWS
TO THE
GROUND OR
INTO A
SECOND
BACKUP
OVERFLOW
TANK

PERIODICALLY DRAIN TO REMOVE
EXCESS COOLANT

COOLANT TO AND
FROM RADIATOR
CAP OVERFLOW

EXPLANATION: Excess coolant passing by the seal in the radiator cap when hot, travels through a hose and into the top port of the tank (1). When the tank nears full, the petcock at the bottom (2) is opened to periodically drain the reservoir. When using the tank in this mode there must be a small pin hole drilled into the center of the top of the tank.

EXPLANATION: Excess coolant passing by the seal in the radiator cap when hot, travels through a hose and into the bottom port of the tank (1). When the radiator cools, the cap is designed to pull the coolant back into the engine reducing air in the block. The top port (2) allows excess coolant to escape if the tank's capacity is exceeded. No pin hole is needed.

SECONDARY
OVERFLOW

FROM RADIATOR CAP OVERFLOW

EITHER PORT 2 or 3 WILL VENT EXCESS COOLANT TO OVERFLOW
TO THE GROUND OR INTO A SECOND
BACK-UP OVERFLOW TANK. (block off unused port)

PERIODICALLY DRAIN TO REMOVE
EXCESS COOLANT

COOLANT TO AND
FROM RADIATOR
CAP OVERFLOW

EXPLANATION: Excess coolant passing by the seal in the radiator cap when hot, travels through a hose and into the top port of the tank (1). When the tank nears full, the petcock at the bottom (2) is opened to periodically drain the reservoir. When using the tank in this mode the radiator cap used must have the cap seal disabled to allow venting to the overflow.

EXPLANATION: Excess coolant passing by the seal in the radiator cap when hot, travels through a hose and into the bottom port of the tank (1). When the radiator cools, the cap is designed to pull the coolant back into the engine reducing air in the block. The top port (2 or 3) allows excess coolant to escape if the tank's capacity is exceeded.

NOTE: Drilling a pin hole in the cap cover eliminates the #2 port below and raises the functional capacity level of the tank

FROM RADIATOR CAP OVERFLOW

EXCESS COOLANT
OVERFLOWS TO THE GROUND OR
INTO A SECOND
BACKUP OVERFLOW TANK

PERIODICALLY DRAIN TO REMOVE
EXCESS COOLANT

COOLANT TO AND
FROM RADIATOR
CAP OVERFLOW

EXPLANATION: Excess coolant passing by the seal in the radiator cap when hot, travels through a hose and into the top port of the tank (1). When the tank nears full, the petcock at the bottom (2) is opened to periodically drain the reservoir. When using the tank in this mode the cover cap used must have pin hole drilled in it to allow venting to the overflow.

EXPLANATION: Excess coolant passing by the seal in the radiator cap when hot, travels through a hose and into the bottom port of the tank (1). When the radiator cools, the cap is designed to pull the coolant back into the engine reducing air in the block. The top port (2) allows excess coolant to escape if the tank's capacity is exceeded. No pin hole is needed.

PERIODICALLY DRAIN TO REMOVE
EXCESS COOLANT

COOLANT TO AND FROM RADIATOR CAP OVERFLOW

EXPLANATION: Excess coolant passing by the seal in the radiator cap when hot, travels through a hose and into the top port of the tank (1). When the tank nears full, the petcock at the bottom (2) is opened to periodically drain the reservoir. When using the tank in this mode there must be a small pin hole drilled into the center of the top of the tank.

EXPLANATION: Excess coolant passing by the seal in the radiator cap when hot, travels through a hose and into the bottom port of the tank (1). When the radiator cools, the cap is designed to pull the coolant back into the engine reducing air in the block. The top port (2) allows excess coolant to escape if the tank's capacity is exceeded. No pin hole is needed.