Bullett

iTrader: (2)

work?i know it sprays into the intercooler but how is it activated etc?and how does it actually work?

pee vee

SECS monitor can trigger it if you got one..

just set it so if it sees more than X amount of boost AND above XX charge temps,
it'll turn the pump on. (via a relay )

JTECH James

iTrader: (13)

ive just fitted my kit today...


the pump[ is powered by a switch on the pump itself, so it keeps the line between the injector abd pump under pressure.

just before the injector you have a solenoid, when this opens, the line pressure drops and the pump starts...this way there is no time delay waiting for the pump to build pressure and get to the injector....


my kit runs from the secs monitor, which allows adjustment of switching!

Bullett

iTrader: (2)

what if you dont have one yet then?does it run all the time or come on on full boost? really dont understand them.and how do they work when its from the washer bottle?

JTECH James

iTrader: (13)

the kits normally come with an adjustable pressure operated switch, which simply opens the solenoid/powers the pump at a pre set boost pressure.

JTECH James

iTrader: (13)

washer bottle types can be water spray...onto the intercooler....

im talking water injection when it sprays into the air stream going into the engine

gus

iTrader: (1)

mine was controlled by the ecu set to turn on at temps over 40 degress and when over a certain amount of boost


cant remember how much thou

Bullett

iTrader: (2)

mike r's is washer bottle type,is his not into the system?

JTECH James

iTrader: (13)

it may well be......the pump can feed from any bottle you want....but you wouldnt want to put washer adative in there lol

captiva

Is it good. Have you seen a difference in performance?

JTECH James

iTrader: (13)

i havent fitted the engine yet

but it will deffo lower charge temp,which can only be good

Jasesapphy

iTrader: (1)

I thought with water Injection the mass taken up by air as opposed to water although will give cooler charge, i did read somewhere that being mist and not air, some power can actualy be lost.

Or in other words 30psi of 30 degree of just cooled air, compared to 30 psi of misted air with WI would make less power.

I will find the book i was reading, it explains it a shit load better tyhan i just have

Mr C

iTrader: (2)

The optimum inlet temp is something like 42 deg and you would want it at a set boost, ideally it would be mapped in for best efficiency but NOT relied on as running short on water will cook your engine.
I would like to know more on this myself

foreigneRS

of course it will, but if you don't have a big enough intercooler then 30 degree of 30 psi with water mist will make more power than 90 deg of 30 psi with retarded ignition (which is what the ecu will do if the ACT sees high temps)

percybigun

i have a "snow performance" water injection kit (from america) on my supercharged zetec, it isnt intercooled and i upped the boost so had to get it to keep the IAT's down.

i've just started running it 50/50 with methanol (which is what the kit is designed for) and the methanol increases the octane rating aswell.

i had it dynoed with a 10bhp gain with it turned on, and that was with 100% water.

mine kicks in at a pre-set boost level. i can buy an add-on controller unit to connect to the maf and have it to kick in at a certain IAT but as my IAT's are so high regardless i'll leave it be for now, its working ok.

Jasesapphy

iTrader: (1)

I realise this, what i was trying to say a better air to air intercooler is better than using WI as compensation.

rapidcossie

The hundreds of pounds spend on a WI set should be spent on more effcient intercooler.

Even on the top speed runs my ACT's are fine with 35 deg seen at end of the runway in about 10 deg ambients.

percybigun

i'd rather have an intercooler but the supercharger and inlet manifold kit that i got has no way of adding one on, so this is a sneaky way of having a bit more boost out of the system

and it was only £150 for the water kit which was about half the price of aquamist at the time, for the equivalent product.

JTECH James

iTrader: (13)

an intercooler doesnt help when you have been sat in traffic though....infact it makes the situation worse untill the heat from heatsoak has cooled down......
intercoolers get hot unless air is flowing through it....on a road car i noticed this happening alot....wi will help this,by cooling the charge temp during these conditions.

rapidcossie

the intercooler recovers in seconds when you start moving a decent speed.

percybigun

on an american zetec tuning site they are using nitro-methane (50/50 with water) in water injection systems on turbo'd/supercharged zetecs, any thoughts on this?

JTECH James

iTrader: (13)

takes a little while to get back to what it was. the bigger the intercooler,the more it will suffer from heat soak.... brilliant when on the move though....catch 22!

OldDan

Out of interest - would this work on an NA car.

I.e spraying into the airbox to cool the air?

bigchez

But if you are stuck in traffic you are not going to need the cooling of the intercooler as you're not going anywhere, therefore not using any boost.......

percybigun

some people use it on cars with throttle bodies running big power and high rpm's, no need on fairly normal-ish N/A cars though.

JTECH James

iTrader: (13)

heres a scenario i came across alot....


come to a roundabout which is very busy......10mins of traffic leading to a dual carrageway...


by the time i get to the dual carrageway charge temps are sky high, as the intercooler has soaked loads of heat from the radiator.....

i nail it up the dualcarrigeway, with high charge temps.....untill a few minuites when they drop off back to normal......at this time im doing 150mph, and needed cool charge temp two mins ago!

bigchez

Fair point!

percybigun

thats easily resolved, move the intercooler further away from the radiator

JTECH James

iTrader: (13)

the way i have mine set up through the secs monitor, it will only work at bosst over 15psi AND charge temp over 40 degs....

so it wont work that often, but will help when its needed, for safety more than anything.

OldDan

Well - I'm running throttle bodies and high rpms.....

JTECH James

iTrader: (13)

like in the boot as some do

percybigun

aha, there was a guy on turbosport with a red orion with a zetec on TB's who was right into all that, freakpower i think his username was.

foreigneRS

have your cooling fans switch on when stationary instead so that you always have airflow across the i/c so that the heat from the radiator is taken away from the i/c

Mike Rainbird

iTrader: (3)

That has NOTHING to do with your intercooler, which will have recovered in a matter of seconds, but the location of the ACT sensor (which is in the inlet manifold), which has no air flow to it (hence why it takes longer to recover). If you repositioned your sensor to the outlet of the intercooler, you would have a true representation as to the efficiency of the intercooler and no longer experience the delay .

Turbocabbie

I run water injection triggered by the ECU which sprays a mist in to my crossover pipe at a specific boost and temperature, if both these criteria are not met then it does not spray

I use it as security to prevent possible detonation rather than to compensate for some major deficiency in my set-up.