Water injection installation



Jet boat

Water in - Water travels from the jet pump through the gate valve (it looks like a hot water heater valve) to a hollow T-fitting. From there, the T divides the water and dispurses to the front of the motor (where the car water pump would of been).

Water exit - You have two fittings at the thermostat housing. First, take one of the lines (it doesn't matter which one) and connect it to the water pressure T-valve. Next, run the lines from the T-valve to each water injection harness on the header. The other exit line on the thermostat housing is a dump line. It will exit through the transom above the water line.

V-Drive

Water in - Water travels from the cavitation plate to the water pump, and from the water pump to a hollow T-fitting. From there, the T divides the water and dispurses to the front of the motor (where the car water pump would of been).

Water exit - You have two fittings at the thermostat housing. First, take one of the lines (it doesn't matter which one) and connect it to the water pressure T-valve. Next, run the lines from the T-valve to each water injection harness on the header. The other exit line on the thermostat housing is a dump line. It will exit through the transom above the water line.

Thru transom

Water in - Water travels from the jet pump through the gate valve (it looks like a hot water heater valve) to a hollow T-fitting. From there, the T divides the water and dispurses to the front of the motor (where the car water pump would of been).

Water exit - You have two fittings at the thermostat housing. First, take one of the lines (it doesn't matter which one) and connect it to the water pressure T-valve. Next, run the lines from the T-valve to each water injection harness on the header. The other exit line on the thermostat housing is a dump line. Tap into the dump line and run a small hose to each collector. You will now have full time water at the collector so the rubber hose won't burn. Exit through the transom above the water line.