McGoo 69

Just wondering whos using aquamist on here?? Just read up about it and am very tempted to give it a try on my duratec engine build

How do people rate it, it seems to work very well on the you tube videos ive seen.

Need a bit of feedback on it realy

Matty

rapidcossie

do you expect to have uncontrollable ACTS?

McGoo 69

dont know its something i fancy trying. ive been told it will be good as it keeps engine temperature down, which is a bonus for any engine build

rapidcossie

It controls ACTS but also will limit power when switched on...

McGoo 69

im not to mitherd about limiting power more intrested in engine life. ive been told it can be mixed with alcohol to improve performance.

dont mean to sound newbe but ACTS?

rapidcossie

ACT is the temp after the intercooler as the air enters the engine.

If you are running a mild spec then you DONT need water injection at all.

McGoo 69

i understand what you mean but for the cost of the kit (around £300) its something worth buying purly to look after the engine.

Another reason is that im not 100% sure what pistons + rods i will be using on my duratec. Im not too sure if a decompression plate can be used like you can do on a zetec..

Idealy id like to use rods and a decomp plate and the aquamist to keep it sweet..

Its going to be a very expensive build using new rods+pistons etc

any other ideas? im new to the whole turbo thing, this is the first turbo experiance im having. I can build engines just never playd with turbos but im fairly confident i have my head round it

thanks for your help so far

rapidcossie

Im no expert mate but using aquamist is only masking a problem is proably worse for your engine in the long run.

fit a proper intercooler and you will not need water injection.

focusbird

I had an aquamist system on my focus when it was supercharged. All I'd advise is that you get yourself a water tank in the boot (I got mine from Demon Tweeks) rather than relying on the water being fed from your washer bottle.

McGoo 69

i will also be running a intercooler this is something extra.

if i was to do it id use a seperate bottle yes. how do you think it performd when you had it?

matty

Paul_RS

iTrader: (4)

I don't think its essential?

Ford used it on WRC escorts but it only work when ACT's went over either 38 or 40 degrees.

I was advised to fit it to my car by a former rallyx champion, so it must be useful?

McGoo 69

no i dont mean its essential but its better for the engine surly if its keeping it running as cool as possible??

Daxcossie

Ive got an Aquamist pump fitted as I am unable to fit a larger intercooler at present : (

Aquamist stage 1 water injection fitted on cold throttle body side, near intercooler with .7 jet fitted as well as check valve. (Secs monitor controlled – 40 degrees / 14psi)

It's Czech Mate

Why would you decomp it with a plate and use new rods and pistons?

Why not just get rods and pistons to give the correct comp ratio?

Garage19

Far from improoving engine life WI could actually shorten it.

Its almost like steam cleaning the lubricating film of oil off your bore.

I would only use it if other charge cooling / det prevention methods are not suitable.

Mike Rainbird

iTrader: (3)

It depends on how you have the system operated. If you use the budget Aquamist set up, then it is TOTALLY flawed system. This is because (unless they have changed it), the water is just sprayed into the engine as soon as a set boost pressure is reached, which will just lead to misfires when the charge temps are too cool to not warrant any water being sprayed.

The correct way to do it is with it being controlled by charge temps AND boost pressure (which is why the SECS monitors are so good). This way water is ONLY injected into the engine when the air charge temps are sufficiently high that the heat exchange process evaporates the majority of the water, and thus misfires are avoided (as strangely fire and water don't mix very well).

As Euan has mentioned WI actually LOSES you power and also does NOT protect the engine (in fact it can be worse for the engine if it causes misfires ), unless the correct strategy is used. The only reason to use it is once your intercooling options have been exhausted, and WI is your last ditched attempt at managing the ACTs. If used correctly, although it will still LOSE you power, it just won't lose you as much as it would if you allowed the charge temps to climb to the point that the ECU was retarding the ignition and backing the boost off.

Seriously, your best bet is to forget about water injection and spend the money on the best / biggest intercooler you can afford - that additional £300 should buy you something that will be so efficient, that you will never see the temps exceed the WI trigger point anyway .

brians2turbo

Excuse me for being thick but whats the ideal act temps? and what temperature is to high?

scoooby slayer

iTrader: (4)

my wi comes in at 39 c and 13 psi doesnt even come on when its cold only real hot summer days and a good caining and i have seen a peak of 60 c but thats flat out through all the gears on a very hot day with a massive intercooler running 480 hp.
what power and boost pressure you aiming for ?

Mike Rainbird

iTrader: (3)

Brian,
I would be aiming to achieve no more than 40-50°C .

Your WI either isn't working, or you have a jet(s) of insufficient size, as the temps should be held at 45-50°C with it on .

Personally, I would look at your intercooler, as 60°C is showing that big improvements can be gained in fitting a better one .

scoooby slayer

iTrader: (4)

intercooler is 60mm rs 500 style alloy one radtec i think just looked at my mapping sheet from msd and didnt go above 43 c. that was on an extremeley hot day mate when it touched 60c. one of the hottest days of the year. maybe my water injection didnt come in for some reason

Mike Rainbird

iTrader: (3)

Your Radtec cooler is a very good one, so it could be your filter / jets are blocked - earth the relay to check it is working okay .

What strategy are you using to fire it up?

scoooby slayer

iTrader: (4)

dunno what you mean mate it runs of the secs monitor if thats what you mean ?

Mike Rainbird

iTrader: (3)

So what charge temp and boost pressure have you set to trigger it?

scoooby slayer

iTrader: (4)

39 c and 13 psi. always holds around 45 c just checked my secs peak point after a proper caining on a very hot day and peak was 60c. but im not sure if that was on the nms map or the new msd map

Mike Rainbird

iTrader: (3)

I would imagine that the peak you have is from heat soak in slow moving traffic you muppet .

scoooby slayer

iTrader: (4)

well excccuse me never thought of that

Mike Rainbird

iTrader: (3)

That's why you should reset it every time .

ian sibbert

Position of the ACT sensor needs to be considered, I still think the sensor in the throttle body before the butterfly is best to avoid too much heat soak....