Aquamist HFS-3 system for 2010 ..... "Q and A"

[Richard L]

The HFS-xx is designed to spray up to 1600 cc/min. At lower, you willbe operating at the boottom end of the designed range. In this range, unless the inlet restrictor is well, match, you will be getting some overflow.

All the turbine flow sensor also over reads a little as it accellerates towards a steady flow. We are bring put a range of smaller valves in the next few months. Beta test is available now. Howerton do have a few but not many untill full production.

Richard

Originally Posted by zakshaker

hello,

the kit is setup to start spraying at 0.6 bar of boost pressure, which must be around 20%IDC then it goes up to around 65%

when I tested the kit on my fuel map. I did this test :
- boost set up at 0.7. when HFS3 activate, it goes straight to 5 bars. engine has hesitation as A/F ratio goes over 10:1 then it gets better as rpm rise
- boost set up at 1.3 bar. when hfs3 activate, it goes great as boost reach higher pressure (it still indicate 5 bars no mater RPM). A/F ratio is much closer to normal at 1.3 bar, which means there is less methanol vs fuel than when setup at 0.7 bar.

also, when I first did flow test, I ended up using 1mm nozzle, which was perfect flow size. but when I tried to drive with it, when HFS activated, car was just hesitating like hell (very rich). so, I changed for .8 nozzle, which went quite better.

I also noticed EGT are going a bit down when the pump trigger. but is going up again when boost or RPM rize up to same value it was without Aquamist

note : those test were done using 50:50 water/meth

so in my opinion, my active valves just stay open and act like single stage kit.

As Richard said, if you are not using the proper restictor it will flow higher in the lower IDC region. Using EGT as an indicator may not be the best as the heat load from you method of forced induction may not match RPM proportionally. You may only get a 2 bar change with the setup and settings you are using.

I will need to look at the schematics or ask Richard, I believe there maybe a test point on the board where you can read a representative 0-5V output of the valve DC. You can drive the car and measure this to see if it as acting as a single stage or not.

[zakshaker]

I'm using the smallest restrictor provided : 0.5mm
if there is a 0-5 volt output to test valve DC, I could check that

[cammy]

Hi guys, got my HFS-3 spraying nicely now just need a little bit of experianced advice on the dial settings so I can start tuning shortly.

I imagine the following info is needed,

* evo 7 with 2.4L
* running direct port .3mm jets x 4
* 1000cc injectors
* 50-50 WM

thank you

Cammy

[Milou911]

I just got my Aquamist HFS3, i'll be installing it on my Porsche 997 turbo, has anyone done it on this car before? Any info?

thx

[Milou911]

Anyone...........?

[Richard L]

There has been a few 996's. But I think the DME is the same. If you need soem wiring instruction, here is a link to it:

http://www.aquamist.co.uk/vbulletin/...ead.php?t=1876

EPL put one into a 997 here:
http://www.6speedonline.com/forums/9...n-install.html

[zakshaker]

quick notice,

Problem has been solved using smaller fuel injector
I used to have big injector to run ethanol, so when back to regular gasoline, my injector duty range was very low (under 50%). I have reverted to proper smaller injector size (to have 80% duty) and downgraded jet size acordingly. now the kit works perfect

[mindblower]

Ford F-350 superduty 2003 7.3L turbodiesel
"Installed" HFS-2 system in it but doesnt work.
Indicator/dashswith red led always on.

Broblem is where do you install injector duty cycle harness (red and green wire) when ford has 120v system in it?

[Richard L]

There are two version of the dash switch red/yellow and green/yellow. Unfortunately the user manual does not state there is a red/yellow verison. If you have solid red, it means the system is installed correctly and ready to inject once it sees the IDC signal.

I can help you but I need to do some research of what type of diesel injection system Ford uses. If you know, send me some links to speed things up. The HFS2v2 can read any DI signals. If all else fails, you can inject based on manifoild pressure.