Aquamist HFS3-v3.1 system

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A State-of-the-Art PWM Valve Driven Aquamist HFS3 V3.1 System for Efficient Progression.
Out of stock
SKU
806-063
849.00€ 684.68€
We are offering a 3000cc/min pump option for 1000hp+ engines. It is not recommended for engines below 950hp. When this option is selected, we will include the 1600cc FAV and large flow sensor tube.

Aquamist has been pioneering the IDC based water injection system since 2003 with great success. The HFS3-pwm system is designed to complete the Aquamist’s PWM-valve delivery system line-up, it allows precise metering of water/methanol injection for the modern high performance engine. The dash gauge, flow sensor and “Plug and Play” features are standard to minimise installation time.

The system retrieves the fuel flow (IDC) and manifold pressure signals (MPS) from the engine management system as the prime source to control the flow of water. This enables perfect balance of water to fuel flow under all engine loads. The system can also be controlled by a third-party ECU with its own custom water/methanol flow map.

A “Fast Acting Valve” (FAV) controls the delivery rate based on the PWM signal from the HFS-3 controller. A constant line pressure (160 psi) is provided by the Aquatec pump working in the “by-pass” mode. A PWM valve system guarantees wide dynamic range.

There is a non-gauge/flow sensor option (HFS-2) for non-critical application where a failsafe is not needed. A dash switch is provided instead. The user can disable the system and reduce the manifold pressure to wastegate pressure if needed.

 Choosing water/methanol flow for your application:

  • 100% water: 10-15% water/fuel ratio or 0-5-1cc per BHP
  • M50/W50: 15-20% MW/fuel ratio or 1-1.5cc per BHP
  • 100% methanol: 20-25% methanol/fuel ratio or 1.5-2cc per BHP

Selecting the correct jet or jets for the required flow:

  • Calculate the "true" pressure by subtract the 160psi pump pressure by the "boost" pressure
  • Select the jet or jets from "true" pressure from the chart below (compensated)
  • Always pick the next size up or allow 10-15% more to allow more headroom

Notes on Direct Port application:

  • Divide the final flow amongst the DP jets
  • Allow one extra jet for IAT cooling, normally twice the size of the DP jet. (re-calculate DP jet)
  • Ideally the DP jet should have an external or internal check valve to minimise vacuum induced after-spray
  • Insert an "high pressure inline filter" before the FAV to minmise the risk of clogging
  • Order extra jet adaptors (806-357N) - Std. kit comes with two
  • Recommend using the aquamist Hex Manifold. (comes standard with all compression fittings)
  • Optional PTFE (4mm) is optional but ideal for combating the heat in the engine compartment. Essential for track or rally events
  • Keep hose run to the DP jets as short as possible. Not necessarily need to be "equal" length
  • Contact Racedom for your unique application before orderingOther Details:
  • Contents: Full kit without water tank.
  • Std. jets: 0.8, 0.9, 1.0mm (if not specified with order)
  • Version: v3

 

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Customer Questions
What is the Aquamist HFS3-pwm system?
The Aquamist HFS3-pwm system is a water injection system designed for precise metering of water/methanol injection for high performance engines. It features a PWM-valve delivery system, dash gauge, flow sensor, and 'Plug and Play' features for easy installation.
How does the Aquamist HFS3-pwm system control water flow?
The system retrieves fuel flow (IDC) and manifold pressure signals (MPS) from the engine management system to control the flow of water. This ensures a perfect balance of water to fuel flow under all engine loads. It can also be controlled by a third-party ECU with a custom water/methanol flow map.
What are the options for non-critical applications?
For non-critical applications, the HFS-2 option is available, which does not include a gauge/flow sensor. Instead, a dash switch is provided for system control. Users can disable the system and reduce manifold pressure to wastegate pressure if needed.
How to choose water/methanol flow for an application?
The recommended water/methanol flow ratios are: 100% water (10-15% water/fuel ratio or 0.5-1cc per BHP), M50/W50 (15-20% MW/fuel ratio or 1-1.5cc per BHP), and 100% methanol (20-25% methanol/fuel ratio or 1.5-2cc per BHP).
How to select the correct jet for the required flow?
To select the correct jet size, calculate the 'true' pressure by subtracting the pump pressure from the boost pressure. Then, choose the jet size from the chart provided, always picking the next size up or allowing 10-15% more for headroom.
What are the notes on Direct Port application?
For Direct Port applications, divide the final flow among the DP jets, add an extra jet for IAT cooling, use high-pressure inline filters, and keep hose runs to DP jets as short as possible. It is recommended to consult Racedom for unique applications before ordering.