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Old 09-24-2003, 08:58 AM   #1
Scooby Specialist
Member#: 32576
Join Date: Feb 2003
Location: Allentown, PA
04 STI
Roller Barrel ITBS

Default Convert IC water spray to Water Injection?

Anyone know how hard this would be? I think you would only need a solenoid or something to make this work with the future UTEC. This would turn a worthless gizmo into a really cool OEM Water/Alk. injection system with min $. Please give your thoughts.

IC Water spray currently has water tank, water pump, tubing run to the IC, and an internal switch.

You would obviously need injector sprays and tuning, but what else?
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wgknestrick is offline   Reply With Quote
Old 09-24-2003, 10:04 AM   #2
Scooby Newbie
Member#: 37205
Join Date: May 2003
Chapter/Region: RMIC
Location: Colorado
2004 STI


You would need a new pump, and the controller. The spray pump could never make the required pressure. You need the controller to prevent overspraying at low loads.

You would also need a new turbo to take advantage of the water injection's capabilities. It effectively allows higher boost on pump gas. Without higher boost, the water injection system can actually decrease engine performance.
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