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

[Richard L]

The system can be configurated to read absolute (0-5V), 2-bar and 3-bar MAP sensor. You can use the 0-5V input for any load related sensors such as mass air, throttle angle etc.

Choose your MAP sensor to match your boost pressure. Up to 15 psi for a 2-bar and upto 30psi for a 3-bar sensor.

On eof the more popular map sensor is made by GM, availoable in 1, 2 3-bar range. The HFS-4 has 0V and 5V output to power it. Requires a custom cable, not costly.

[maverick6732]

Originally Posted by Richard L

The system can be configurated to read absolute (0-5V), 2-bar and 3-bar MAP sensor. You can use the 0-5V input for any load related sensors such as mass air, throttle angle etc.

Choose your MAP sensor to match your boost pressure. Up to 15 psi for a 2-bar and upto 30psi for a 3-bar sensor.

On eof the more popular map sensor is made by GM, availoable in 1, 2 3-bar range. The HFS-4 has 0V and 5V output to power it. Requires a custom cable, not costly.

Hi Richard,

Just thinking things through and I have a question or two.

The first one is are you saying there is a 5V power supply available from the controller to power the MAP? If so can the MAP feed the input of both the controller and an LM-2 dataloger at the same time?

Do you think it is possible to take a setup that is tuned to run safely and effectively on 93 octane and use the HFS-4 to basically run 87 octane and use the water meth to make up the octane differnce? I ask as it seems the spread between 87 octane and 93 octane here has spread from the old 20 cent premium to more like 50 cents a gallon.

Just thinking out loud.

Thanks,
Dave

[Richard L]

Up to 4.5mm

Richard

[tuscani003]

I have a hyundai tiburon V6 with an Eaton MP90 supercharger that boosts 18psi.
( http://www.ngmhouseofpower.com/product_p/assassinsc.htm )
I have the fuel injector is 600cc and my ECU is a stand alone Hydra EMS.

1---What would be good setup for my tiburon?

2---I do not know the injection water/methanol system. Is it simple to install and tune?

3---for shipping in Canada is you can be sent with USPS (with a little extra) because the costs of customs clearance and tax its much smaller?

[Richard L]

It looks like a very nice bolt on.

Your questions:
1. You can use the hydra's spare PWM output to drive the HFS-4 direct and create your own map or HFS-4 tracks the existing fuel flow and MAP sensor (if available within Hydra).

2. The system is a trunk-mount system. Electronically, it is very straight forward other than the Hydra interface (two wires), just connect the usual 12V and ground supply. All other harnesses are plug and play.

3. I can arrange to have kit to be shipped from the USA because our postal service does not have a tracking system.

[crew219]

Hello Richard, do you have wiring diagrams for the VW GTI / Audi A3 2.0T FSI engine?

Thank you.

Dave

Originally Posted by crew219

Hello Richard, do you have wiring diagrams for the VW GTI / Audi A3 2.0T FSI engine?

Thank you.

Dave

Try in this forum http://www.aquamist.co.uk/vbulletin/...ead.php?t=1698

[Richard L]

Originally Posted by crew219

Hello Richard, do you have wiring diagrams for the VW GTI / Audi A3 2.0T FSI engine?

Thank you.

Dave

Can you please specify the year. Is the VW "GTI" part of your description for the A3?

I produce wiring diagrams from an ECU pinout schematic, from various sources such as ender users and sometime form the web. It takes time. If you happen to have the ECU pinout for your car, I can make a wiring diagram quite quickly.

[Richard L]

You have today to register your interest the GB but you are not fully commited until you have paid the deposit.

Answers to your questins:
1. OE S/C or specials?
2. For total fuel flow of 3300cc/min at M70/W30 mix, I recommend 20% to fuel ratio: 660cc/min @19psi (or 0.9mm + 0.8mm jets), allowing a small head room. System comes with 0.8. 0.9 and 1mm jets as standard.
3. A 5-quart is normally good for a full tank of fuel. For drag days, perhaps 7-8 runs.
4. I cannot read German, but a ECU pinout diagram will help. The HFS-4 has a set of relay contacts for the failosafe usage. Not sure how we can stop the S/C from spinning unless you have a blow-off valve we can activate. There is also 0 or 5V output for failsafe interface purpose with your ECU. Again not sure until I know what is available.
5. The HFS-4 has an 0-5V anlogue output for water flow, you can use this for you data logging purpose.
6. Tanks are sold separtely, Howeton will help you on this. We do supply every parts to be fitted to the tank.
7. Any possibilty of fitting jet before the S/C? it will help reducing the heat soaking from the S/C casing.
8. Jeff howerton will help you on this.

[32Krazy!]

thanx for the fast reply richard.
the s/c is oem built by ihi for mercedes. electromagnetic clutch on the s/c pulley. no boost until 2000 rpm then wham! full boost builds.
teflon coated rotors so i have been told not to spray pre s/c. your thoughts?
i was referring to a 70% water 30% meth as i want to use this for iat control. not really wanting to tune for meth.
am i correct in reading that a gal of mix would only last for 7 to 8 passes? i typically run at the start of the day with 1/2 tank (approx 7 gals fuel ) mixed to 105 octane (torco fuel additive)
i am starting to think the electronics may be beyond my abilities . i may need a shop i know to install this