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#1 30-10-2012, 02:13 PM

http://www.m5board.com/vbulletin/e39-m5-e52-z8-discussion/150665-aquamist-hfs-6-howerton-engineering-water-meth-injection-installation-4.html

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http://www.howertonengineering.n et/products/Aquamist-HFS%252d3-Injection-System.html

http://howertonengineering.net/

A Quick Look at the Controller

A quick glance at the upper section shows that there are no terminal connectors for discreet wires or cables, just a row of sockets with gold plated contacts that will handle low level signals as well as handling switching currents in excess of 1.5A. The HFS3 has it own fused power switching circuitry so that there is no need to search for switched power lead under the dash or fuse box. A Power failure relay (failsafe) and anti-CEL dummy-load resistor is supplied as standard.
Down near the bottom of the controller, three LED�s displaying the IDC signal (green), trigger point reached (amber) and fluid flow is near maximum flow rate (red). There are four trimmers to customize the HFS-3 to your setup if the factory setting needs to be modified. Pre-configured links are also available to further simply and customize your system setup.

A closer look at I/O ports of the HFS3 controller

The HFS3 is equipped with seven I/O ports to communicate with sensors and external control hardware. Each component is factory terminated with a color coded plug, there are no loose wires for the end user to deal with. Each port is clearly marked and color coded.

A description of each port:

Gauge: This port communicates with a 52mm dash gauge (with RJ45 socket) via a flat cable.
Power: This port receives all the 12V power required by the controller via a molex-type plug.
FAV: PWM drive signal to meter the fluid flow via an inline valve (Fast Acting Valve).
WFS: Water Flow Sensor signal port.
ECU: Bi-direction communication port to read and send information between the HFS3 and the engine�s Electronic Control Unit (ECU).
TRUNK: 4-way plug to the tank level sensor and to control the pump.
USER: Direct Injection Input.

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http://howertonengineering.com/howerton-engineering-partsspecialty-aquamist-items/

http://www.srtforums.com/forums/f189/aquamist-install-help-231396/index4.html

http://forums.swedespeed.com/showthread.php?61705-ipd-aquamist

Aeromotive 700 HP EFI Fuel System Kit

http://www.maperformance.com/aeromotive/

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