Aquamist HFS-1 install pics

[bananas]

This ended up being a very clean install. I opted to use my stock windshield washer reservoir to hold the boost juice, instead of running lines to/from the trunk. The pump is mounted onto some holes I found on the frame, near the driver side bumper support. Instead of drilling the reservoir, we tapped the line that goes to the stock headlight washer jets. The electronic pieces of the system were mounted in the spot that is used for something in automatic tranny cars but is empty in manuals.



Mounting place, near the driver's side fog light. Note the proximity to the windshield washer fluid reservoir, and the power steering cooler (mounted in the stock SMIC location).








T adapter in the hose to the headlight washer jets (view from above):




The bracket bolted to the frame:






The nozzle in the FMIC piping:




The power relay, solenoid, and flow detector hardware:

[pondside36]

Looks good.. so since you used a T off the head light washer line, does that mean you can still use the windshield washers and headlight washers when you want to flush the tank and put winshield washer fluid in? If so that is pretty slick for the winter time.

[bananas]

Looks good.. so since you used a T off the head light washer line, does that mean you can still use the windshield washers and headlight washers when you want to flush the tank and put winshield washer fluid in? If so that is pretty slick for the winter time.

Yes it does. In the winter I'll just spray meth on my headlights

[Don Supreme]

So how does it feel?

[bananas]

So how does it feel?

My "tune" is too rich right now to see much benefit, if any. I installed this now, so I'm ready to be tuned with and without meth.

[A4 TSCHUSS]

get rid of the quick connect fittings on the pump and replace them with brass compression fittings. They will start leaking in no time.

What does the aquamist use for nozzles? Do you have something like a 375cc? If so that is what you need with the pump at 150psi of pressure which is full pressure.

[bananas]

get rid of the quick connect fittings on the pump and replace them with brass compression fittings. They will start leaking in no time.

What does the aquamist use for nozzles? Do you have something like a 375cc? If so that is what you need with the pump at 150psi of pressure which is full pressure.

I'll wait and see on the fittings. I think you have the snow performance kit, right? I have a friend with lots of Aquamist experience and he has seen no quick connect failures to date.

My kit came with 3 nozzles: 0.8mm, 0.9mm, and 1.0mm. I am using the 0.8mm nozzle and running pure H2O right now. The 0.8mm nozzle is about 370cc when the 24psi boost I'm running is factored in. The HFS-1 manual states the pump is 125psi while operating normally.

The one glitch we had with this setup is that the pump sprays when the key is in the accessory position. I'm triggering using the fuel injector signal, not a MAP sensor. I need to send an email to the Aquamist guys to see what's up.

[RLB6]

I'm not familiar with this Aquamist system. I have an Aquamist system and it looks nothing like that. Mines looks like this:

[mtbrider]

nice

[coowhip]

I'm not familiar with this Aquamist system. I have an Aquamist system and it looks nothing like that. Mines looks like this:

Intersting...how much was this setup? What sort of pre-mods do you need for something like this? I know i'm prob asking retarded questions, how easy was the install?

[bananas]

I'm not familiar with this Aquamist system. I have an Aquamist system and it looks nothing like that. Mines looks like this:

Yeah, the HFS-1 is an updated product

[RLB6]

Intersting...how much was this setup? What sort of pre-mods do you need for something like this? I know i'm prob asking retarded questions, how easy was the install?

When I purchased my unit a few years back, it was only $380. Nowadays, it's close to $700. You really don't need any pre-mods. Any turbocharged/supercharged car would benefit from water/meth injection.

[coowhip]

What are the expectations of this mod, HP wise, durability...ect?

[bananas]

What are the expectations of this mod, HP wise, durability...ect?

When I get a leaner tune, I hope to pick up about 20-25whp with meth/water injection. In the summertime I also expect to get nearly full performance even in the heat.

My buddie's evo picked up 40whp (went from 320whp to 360whp) with meth/water and some timing thrown at it.

[RLB6]

Yeah, the HFS-1 is an updated product

I don't see how. No offense, but the fit and finish looks like pure shit. If I had to choose, I would get the 1s or 2s systems over the hfs-1 but as long as it works, right.

[coowhip]

What are you using to tune it with and what adjustments can be made?

[bananas]

I don't see how. No offense, but the fit and finish looks like pure shit. If I had to choose, I would get the 1s or 2s systems over the hfs-1 but as long as it works, right.

None taken.... but why do you think the fit and finish is "pure shit"? What do you say could be done better? I think the install is extremely clean myself!




As for how it is an actual update, the pump is the most important change from the 1s/2c/2d/2s systems. The HFS-1 has quite a bit of updates compared to a 1s, and costs only marginally more

The HFS-1 has the following features:
- Shurflo pump: A customized shurflo pump design which delivers water/meth constantly regulated to 125psi (almost 9 bar) for consistent atomization.
- High speed valve: nearly instant spraying for no-dribble atomization
- Supports MAP, MAF sensor or PWM (injector pulse width) driver, adjustable obviously.
- Includes a flow sensor for low flow/no flow/high flow detection
- Includes multiple failsafe outputs when flow is not as expected. My Evo buddy uses this failsafe signal to switch to his ECU to a non-alky 91 octane tune, but it can also be be set up to drop boost via the N75, or with a similar type of valve in for MBC controlled cars.
- Includes 52mm gauge for monitoring system status, water flow rates, low methanol level (level sensor for the tank is also included), and it also allows in-cockpit control of the system (on/off, boost onset, etc)

The 2d and 2s guys are upgrading their systems to this new pump as well. The HFS-5 is similar to an updated 2D (progressive spraying), but with the better pump and better progressive flow control.


If you want more details, check out the manual PDFs and aquamist discussion forums:
HFS-1: http://www.aquamist.co.uk/forum/gall...FS-1web-sr.pdf
forum: http://www.aquamist.co.uk/phpBB2/viewforum.php?f=30

Some details on HFS-1 and HFS-5 in a group buy thread:
http://forums.bimmerforums.com/forum...d.php?t=963936

[Molotov]

yeah, not gonna lie, the newest kit looks damn sexy

[RLB6]

None taken.... but why do you think the fit and finish is "pure shit"? What do you say could be done better? I think the install is extremely clean myself!

Not saying that the install is shit, I was commenting on the pump itself. The "older" was aesthetically pleasing and in my old applications I would actually show it off by placing it in plain view. The new pump looks like the ones all the other W/M injection kits use, like Snow performance's boost cooler. I wouldn't want to show that new pump. That's all.

[Kittrell]

yeah, not gonna lie, the newest kit looks damn sexy

I disagree, more plastic shit to break. They are more than likely making it for less and charging people more.

[mike's machine]

how about AEM?
it's pretty cheap.
and can you use 2 different size nozzles for bi-turbo?

[AudiA4_20T]

how about AEM?
it's pretty cheap.
and can you use 2 different size nozzles for bi-turbo?

what? I use 2 nozzles on my Snow Performance

[mike's machine]

on 2.7t, you should put 2 nozzles on each uppipe after IC, right?
so for that set up, is that okay to use 2 different sizes?

[bananas]

Update: After over a year, the setup is still running perfectly. Quick-disconnects and plastic fittings have been 100%.

[Abuck35]

have you changed your tune to run more lean now? Did you pick up the predicted 20+whp

[bananas]

have you changed your tune to run more lean now? Did you pick up the predicted 20+whp

Yes, I have a new tune now.

I don't know if the simple addition of water/meth added 20whp because I have not dynoed with HFS-1 on/off.

My original prediction was based purely on my expectation of around +7 extra degrees timing advance at the same boost level. Currently I'm running 5psi more boost (25psi) without knocking when the HFS-1 is on, so in that regard, it allowed me to hit a power level about 50whp above what I hit on 20psi. However, both dyno runs (20psi and 25psi) were done with HFS-1 spraying, so my data don't show a strict on/off power increase.

[20vturbo]

If you move the battery in the trunk you can have a tank made in there from aluminium...That is what I intend to do with my car, get one of those skinny ass voltfreaks batteryes and hide it somewhere and have the meth tank where the battery is now

[Dan[FN]6262]

^thats a good idea

[bananas]

tank made in there from aluminium...

i do not recommend using aluminum :)

http://google.com/search?q=methanol+aluminum

[20vturbo]

stainless then

[20vturbo]

what about the fact that the intake and head are made out of aluminium

[bananas]

what about the fact that the intake and head are made out of aluminium

Rapid evaporation in the intake tract (due to constant airflow) doesn't allow the alcohol to pool, avoiding corrosion.... in theory

[20vturbo]

Rapid evaporation in the intake tract (due to constant airflow) doesn't allow the alcohol to pool, avoiding corrosion.... in theory

it is not pure either, it's 50% on top of what it is not mixed with water..Prob won't be any danger to an aluminium tank

[bananas]

My original prediction was based purely on my expectation of around +7 extra degrees timing advance at the same boost level. Currently I'm running 5psi more boost (25psi) without knocking when the HFS-1 is on, so in that regard, it allowed me to hit a power level about 50whp above what I hit on 20psi. However, both dyno runs (20psi and 25psi) were done with HFS-1 spraying, so my data don't show a strict on/off power increase.

If any cares, I'm now running the Aquamist HFS-3 kit (progressive controller, better fittings, CAT5 etc cabling) on my Maestro 7 tune.
Here are data from about 7 runs, plotted as X/Y graph, then a 6th order polynomial trendline was added. I grouped these into 3 classes... high octane file with meth, low octane file with meth, and low octane file without meth. I'm seeing approximately +5 degrees of timing over the low octane file when I have the HFS-3 turned on. Also, even on the high octane file, I rarely pull ANY timing, so there may be room for one or two degrees more.


Raw Data: http://spreadsheets.google.com/ccc?k...nc&hl=en#gid=0

Spoolin video: http://www.youtube.com/watch?v=6fY6no9rLVk

[Dan[FN]6262]

very nice!

[20vturbo]

I have the hfs 6 i dunno if you saw my install, i ended up using a 5 gallon tank in the trunk, I use purified water and vp methanol, this thing is amazing at 25 psi the car roars

[bananas]

I have the hfs 6 i dunno if you saw my install, i ended up using a 5 gallon tank in the trunk, I use purified water and vp methanol, this thing is amazing at 25 psi the car roars

I'm pretty sure I saw it, but link me :) How do you like the HFS-6?

[a4darkness]

Scatter graph and video, even with bonus video? Hell yeah I care. I am impressed. And highly amused.

Very informative stuff bananas. Thank you.

While it was once the install that seemed daunting, it now appears the difficult part is dialing the tune to the spray + mixture. So then, logging is required to appropriately configure as the amount of variation appears to be quite high (fuel, mix, timing etc.).

[bananas]

Scatter graph and video, even with bonus video? Hell yeah I care. I am impressed. And highly amused.

Very informative stuff bananas. Thank you.

While it was once the install that seemed daunting, it now appears the difficult part is dialing the tune to the spray + mixture. So then, logging is required to appropriately configure as the amount of variation appears to be quite high (fuel, mix, timing etc.).

I've concluded that the progressive spray helps a LOT with dialing in a nice smooth air/fuel curve. The Motronic ME7.5 ecu will fight to maintain the desired air/fuel mixture no matter how much methanol is being injected, so we (B6 owners) don't have to worry as much about that part of the tuning process. Still, adjusting the fueling to account for methanol WITHOUT closed loop feedback is the best/safest route... which is one reason I'm glad my fueling curve in Maestro is pre-set to account for the meth spray.

[20vturbo]

I'm pretty sure I saw it, but link me :) How do you like the HFS-6?

It's awesome, you can feel the car likes it..I didn't adjust much, I changed the duty cycle trigger because of my huge injectors I am probably nowhere near reaching 80% so i set bit to kick in sooner than 40% and adjusted the graf on the gauge...The way it is from the factory it should work fine, if it doesn't it because something is installed wrong.

I had the same issue with the pump firing upon ignition, I installed everything the way they told me with the wires on the injector power and trigger, the only prob is that the audi system is a bit different, when ignition is on the computer doesn't always power the injectors but gives ground to the trigger wire..So basically when I was turning on the ignition I was not getting the system to power up, after checking I figured it was because the injector positive was not getting any juice until you actually crank and start the engine so i got the power from the wire that gives power to the ecu...Now you can imagine that once I turned ignition on the system was full blast because of the solid ground on the ignition trigger...All i had to do was rewire back the way it was and my system now only powers once the engine is running and not on ignition on... i am not sure why audi is like that but my best bet is emissions, prob to prevent accidentally firing of the injector and release gas without the engine running


I also have the mac valve which shuts my boost down to the spring pressure of 14psi if the system malfunctions or I shut it off