marky_g

as above and where dos it inter you inlet system?

i have it fitted to my s2 it was previously in the cross over like this



i want to move where it enters the inlet system it as i have changed the crossover and don't want to drill it i had 2 ideas

firstly to the dump valve t piece


i have concerns that it may be 2 far away and in it mix with the air correctly

2nd place is on the throttle body


i have concerns about this being 2 close

option 3 of one of the revo tec self sealing things that go in the silicone hose

any light that can be shed on this would be of grate help
__________________

gus

iTrader: (1)

think it needs to be before you act sensor (someone will correct me)

other than that it dont matter, dump valve bung is a nice idea

pa_sjo

You don't want it in that t-piece because it'll most likely cause droplets to form which stop it from being effective. You want nice, clean atomisation!

Turbocabbie

Shit position, it does not atomise correctly here imho the bend would increase the possibility of droplets in this area


I would have the same concerns, its also to far from the engine imho as if the engine needs a drop of water to prevent detonation by the time the water injected has travelled from that point that far, and had its temperature increased massively by the hot air it would be useless, this is without the issues of accurately measuring the amount of water to be injected at this point.


I run water injection and the crossover pipe is tapped just above the bolts which hold it onto the rocker cover, the straight path at this point ensure good coverage of air to mix with the water spray, works without issue and atomises well

gus

iTrader: (1)

dont the wrc cars run their jets at the intercooler?

RST Appie

I tapped mine at this point.Good flow and 50/50 mix methanol with 0.7mm waterjet.
No problems with it.

marky_g

well i dint fit the water injection in that place performance ford did and done an arse load of testing with it, i rely didnt want to put it in the cross over but seems thats my only option,

Appie what sort performance gains do get the methanol? that sounds a good idea, although i am using t as a safety

Karlos G

iTrader: (4)

Read this, interesting bit of info!

Many water injection systems use a mixture of water and alcohol (approximately 50/50), with trace amounts of water-soluble oil. The water provides the primary cooling effect due to its great density and high heat absorption properties. The alcohol is combustible, and also serves as an antifreeze for the water. The purpose of the oil is to prevent corrosion of water injection and fuel system components. [1] Because the alcohol mixed into the injection solution is often methanol (CH3OH), the system is known as methanol-water injection, or MW50. In the United States, the system is commonly referred to as anti-detonant injection, or ADI

Turbocabbie

My water injection is basically in the same place as Appie's although I run a different size jet, the water injection is mapped against boost pressure and act temperature as such mine is only protection against detonation.
The methanol is mixed with water as it offers additional properties including the fact that it reduces the ease at which the water will freeze during cold winter months.
I personally do not think you see any gains unless you are using the water injection to overcome failings in your induction cooling

pa_sjo

That is exactly right.. water injection should only be used when charge cooling isn't effective (eg, on a drift car, rally car going sideways etc).. All it's effectively doing is displacing volume in the cylinder that you could be filling with air and fuel thus reducing the power it can produce (eg, no det!).. It's easier just to wind down the boost a bit

marky_g

mine was mainly fitted as the car used to run 20psi (not down to me tho) but i like the idea of the methanol thing as ive only ever filled it with water, as my reservoir is the washer bottle lol

where can i buy the menthol water mix stuff or u gotta make it your self?

oh and its not a mappable kit just boost pressure

pa_sjo

You can buy neat methanol on ebay

marky_g

sweet! what about the oil in the mix? or should i just not bother

pa_sjo

Dunno, I just wouldn't run it at all unless there was a problem that required it. You can get oils that are soluble in methanol (alcohol), not sure about water though!!!

marky_g

the stuff that's for BIO DIESEL methanol?

pa_sjo

Not sure. I'd look at oils used in model engines (as they run methanol fuel) and also stuff in drag racing (eg, methanol cars!)..

marky_g

i mean the methanol not the oil lol

RST Appie

http://www.aquamist.co.uk/

gus

iTrader: (1)

i think screen wash contains methanol


its something like this

i have it fitted to my new engine, 1- cos i already had the bits and 2- cos i would rather have ith and never need it, then not have it and do need it

if that makes sense

pa_sjo

Yes then

Kevin_Mc

where's the best place to get water injection kits?

Turbocabbie

I use the methanol used in model aircraft or medical grade methanolas its very high quality, cheaper methanol I have used seems less refined.

Check chemical suppliers, they will sell it to you if you state the reason why you want it.

I would never have a kit solely dependant upon boost pressure as the water would be injected way to often for my liking, not to mention you actually have no idea if the car is going to start detonating and when it really needs the water, you may have none left as every time your car boosts it uses some. Decent kits measure ACT for a reason.

Turbocabbie

www.aquamist.co.uk
www.coolingmist.com

I use the aquamist kit on a mirror header tank, mapped against boost and act, I personally think very highly of this kit.

marky_g

i have the basic aquamist ERL system and its fine, suits me and my budget, sure they didnt spend time and money developing the boost pressure system if it didnt work

Charlie Chalk

iTrader: (1)

They run them just before the TB after the coldside outlet in intercooler iirc!

I have a picture somewhere

marky_g

some spray onto the intercooler i did wanna get that mod for mine but that would be 2 much water i think