waterinjection.info - HFS-4 Q&A, application for your engine...

waterinjection.info (http://www.aquamist.co.uk/forum2/vbulletin/index.php)

- Aquamist HFS-4 forum (http://www.aquamist.co.uk/forum2/vbulletin/forumdisplay.php?f=48)

- - HFS-4 Q&A, application for your engine... (http://www.aquamist.co.uk/forum2/vbulletin/showthread.php?t=2158)

HFS-4 Q&A, application for your engine...

Re: HFS-4 intro...

"What is in the box"

? 6M of 6mm OD nylon hose (806-261). 2M of 4mm OD nylon hose (806-266)
? HFS-4 Electronic controller
? 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 Tee compression fitting (806-395) in plastic bag (new for 2.12 kit)
? 2x M8 x 1/8 NPT jet adapter with plug (806-357N)
? A set of three restrictors with insertion tool
? 1x water tank adapter 1/8 BSP (806-270), 6mm compression fitting and in-tank filter (806-258)
? 4x M5x40mm bolt, washers and fasteners for pump
? 1x M6 grounding stud with washer and nuts and 6mm eyelet for pump ground.
? 2x 6mm to 1/8 BSP compression fitting for pump..
? 2x 3/8BSP-M to 1/8BSP-F reducer for pump.
? 1x 4mm to 1/8 BSP compression fitting for FAV.
? 1x 6mm to 1/8 BSP compression fitting for FAV.
? Water pump harness. 6M of #12 AWG cable and 6M of multi-core cable with blue harness.
? 1x Fast acting valve with red harness
? 1x turbine flow sensor with yellow harness
? 1x water level switch with connector (806-281c)
? 1x DDS3v12 Gauge with 1.5M x 8-way cable
? 2.0 M of multi-core with grey capped RJ48 for ECU interface, fail-safe and map switching.
? Molex type 4-way power in harness
? Green harness for Direct injection engines (v2.12).
? User manual

Generic wiring diagram:

http://www.aquamist.co.uk/HFS4/H4-generic-wiring.gif

components in the kit:

Gauge:
http://www.aquamist.co.uk/forum/dds3gauge.jpg

Compression fittings (zero leak)
http://www.aquamist.co.uk/forum/c-fittings.jpg

More to come...

More to come...

Re: HFS-4 intro...

subscribing for group buy.

Re: HFS-4 intro...

GB details will be up this weekend.

Re: HFS-4 intro...

Quote:

Originally Posted by Richard L (Post 15879)

GB details will be up this weekend.

Looking forward to it

Re: HFS-4 intro...

We will probably need 20+ people for the GB to materialise. Hopefully it will happen.

Re: HFS-4 intro...

Compatible with DI on Mazdaspeed 6 / 3?

Re: HFS-4 intro...

is this basically for newer cars and would this have no major improvements over the hfs3 on an 92 rx7

Re: HFS-4 intro...

Quote:

Originally Posted by JumpingJackson (Post 15882)

Compatible with DI on Mazdaspeed 6 / 3?

Yes, it will be. The H4 has two dedicated Di inputs, one will work with the MZS3 and MZS6. The other is for VW FSi engines.

I know the MAZADASPEED ECU quite well. It is weird how it switches, firing alternative injector banks between + and -. On the MZS6, you can tap the injector signal before the driver, the injector signal is individually driven.

Re: HFS-4 intro...

Quote:

Originally Posted by rxheaven (Post 15883)

is this basically for newer cars and would this have no major improvements over the hfs3 on an 92 rx7

There several improvements on the H4 over the H3. One in particular is the ability to balance the meth flow rate between boost and IDC. This allows you to add more meth in the mid-range.

Think of the H4 as the H6 (discontinued) replacement rather a newer H3.