HFS-1-v10w.pdf

Single stage water injection system + DDS3

Instruction manual v10w

GETTING TO KNOW THE AQUAMIST HFS-1

The HFS-1 is designed with one aim in mind - deliver fluid to your engine with reliability and

safety.

Utilising the most powerful motor Shurflo offered on their 8000 series diaphragm pump range.

The 150W motor will deliver beyond two litres of fluid per minute at 125psi with ease. Bypass

switch is replaced by three 125psi internal by-pass valves, allowing the pump to operate at a

smooth system pressure without pressure spikes. Most similar systems offered has pressure

spikes as much as 20psi!

Since the system is designed for high flow, high power applications, continuity of flow is vital to

the health of your engine. We have integrated the well proven DDS3(v10) dash display

system to monitor the flow full time. In the event of a flow discrepancy, the system will lower

your boost or switches map (if available).

Single point injection system has been proven to give a more consistent result than the

progressive pump speed system due to it well defined rate and is not plagued by response

speed and operational range. The HFS-1 can be upgraded to a PWM-valve system very easily

in the future.

Page 3

Contents:

System overview Page

Checking the contents of the box

Getting started on installation

Junction Box

System component on installation

Engine bay components

HFS/DDS3

7-12

DDS3 junction box pin-out descriptions

13-14 Generic wiring diagram for HFS-1

Failsafe:

15-16 DDS3v10 Dash gauge functions

Wiring:

Wiring Check and powering the system up for

the first time

18-20 Final check-up and setting up the fail-safe.

21-22 Advances system configuration (solder link)

Appendix:

Wiring details Guarantee and Warranty

Page 4

Checking the contents of the box carefully

This is a “must do” immediately

after unpacking ....

Water pump

♦ 1x water tank adapter 1/8 BSP (806-270) + 6mm

qck-fit elbow (806-376)

♦ 100 micron inline water filter (806-257)

♦ 4x M5x 40mm, nuts, washers and fasteners for

pump

♦ 1x M6 grounding stud with washed and nuts

and 6mm eyelet for pump ground

♦ 2x 3/8 BSP-M to 6mm 1/8BSP-M elbow.

Unpack the corrugated sheet carefully. The pump

should be labelled with the original custom Aquamist

label.

The white box

♦ 6M of 6mm OD nylon hose (806-261)

♦ 2M of 4mm OD nylon hose (806-266)

♦ 15A Fused water pump harness with 40A relay

♦ Inline valve (806-234) with 6/4 mm hose connec-

tor and mounting bracket)

♦ 0.8 mm water jet (806-323) in plastic bag

♦ 0.9 mm water jet (806-324) in plastic bag

♦ 1.0 mm water jet (806-325) in plastic bag

♦ 1x 4mm Y-piece (806-362) in plastic bag

♦ 2x M8 x 1/8 NPT jet adaptor with plug (806-

357N)

DDS3v10 fluid monitoring system box

♦

Assortment of 22 AWG coloured hook-up wires

♦

1x DDS3 Dash Gauge with 1.5 M x 8-way cable

♦

1x Version 10 Junction box

♦

1x water level switch with connector (806-280c)

♦

1x Digital flow sensor (806-428)

♦

HFS-1 instruction booklet

♦

3A inline fuse link

Note: Please contact your supplier immediately should you

discover any missing parts.

Page 5

Getting started on installation

Before installations guidelines

♦ The pump and water tank is designed to be fitted

in the trunk. Install the water pump and inline

filter below the water tank.

♦ Ensure all fittings are tighten and leak proof

before filling up with water/methanol, test it with

water first. If high concentration of methanol is

used, please vent the tank’s breather hole exter-

nally. Methanol is poisonous at high concentra-

tions.

Water tank components

♦ Ensure the outlet is facing the rear or the side of

the tank. Drill/bore a burr-free 7/8“hole. Clear up

all the burred edges and wash the tank thor-

oughly. No debris or plastic shaving should re-

mained in the delivery system. 1-2 inch from the

bottom of the tank is ideal.

♦ Same size hole for the water level sensor. Do not

place the level sensor near the washer pump, it

will not operate properly. The float should swing

upwards. Tank venting hole must be re-directly

externally if high alcohol concentration is used.

♦ A tall and slim water tank is ideal for this type of

application. Minimise delivery surge problems at

low water level.

Assembling the pump in steps

♦ Gently assemble the two 3/8 BSP adapters into

the pump without crossing the threads. The

female one going into the inlet of the pump.

Flow direction is moulded onto the plastic pump

head. Ensure o-ring is properly seated inside the

pump.

♦ Assemble the accumulator supporting bracket

with the metal band supplied.

♦ Assemble the rest of the 1/8 BSP elbow fittings

and blanking plugs. Ensure all o-ring type fittings

are not overly tightened.

♦ Mark (dyes smeared on the bottom of the

pump’s rubber feet) and drill four holes for the

pump.

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