30 replies to this topic

[David75]

Hey, Question: Placing a water injection system before the intercooler, isn't it a bit dangerous? Because water is first sprayed, but can go to great amount of liquid as it goes through the IC... the phenomenon may be worse when it's cold.. I was just worying, because great amounts of liquid water going into the motor isn't a goog idea Anyway I have no idea if this problem is real. Appart from that I really like the water injection kit principles. Moreover it's really possible to connect it with a map and use a safe mode when there's no water in the tank etc... do whatever you want to protect your motor and yet have more out of it C u

[Man-Chun]

I understand what you mean but I think its only a small amount, but it is enough to stop inlet temps rising. Looking at the info the max amount of water getting into the engine with both jets is 70cc per min, not a hugh amount compared to 150cc per min when driving in heavy rain. To run water injection before the intercooler it maybe wise to run it with a control system that looks at intake and intercooler temps.

[lowcali]

My next step will be installing Aquamist to my Speedster turbo. About a week ago I ran a rolling road test in 29 degrees C ( inside the garage). High inlet temperature obviously resulted a significant drop in the results. Speedy managed to deliver 289,9 hp/5300 rpm and 411,7 Nm/3500 rpm. Temperatures in the IC rose so rapidly that i was surprised. Quickly rosen inlet air temperature caused a chain reaction and the result was fallen boost pressure down to 1,2 bar. My speedy boosts normally 1,5 bar. It has EDS phase 4.something maps, including EDS inlet manifold and tophat, Regal inlet cam, 470cc injectors, VX-performance IC, aibox, precatless downpipe and oil cooler, Komotec 86mm exhaust, K04S turbo, 80mm AFM, Forge BP-valve, 63mm inlet tubing...etc. Inlet air temperature is clearly the bottleneck at the moment. As You know chargecooler systems are effective but expensive, I will try this waterjet injection system to cool the inlet temperature with a little lower budged. Adding methanol to the mixture will also help to avoid knocking with higher boost pressure and leaner mix. I will install my aquamist system to be controlled not by the boost pressure limit, but by the injector opening time pulse width. Then the controlling pulse is more accurate and reliable. I will not connect the safety circuit which tells the wastegate to open in case of running out of the water/methanol mixture, since at this phase I´m not going to increase the boost pressure. Here are few pics of current situation.

Attached Files

•  eds imusarja2.JPG   182.81KB   4 downloads

[danger7]

Hi, I'm running an Aquamist system, I run off the boost (0.9 bar activation) and it works very well, it helps with keeping temps down sure, but cannot work as efficiently as CC. It helps but doesnt replace a CC. The position for the water inlet is on the centre line of the top hat, I have installed a t/c 10mm down from the inlet position. Do you live in Germany by chance? Cheers Ian

[JohnTurbo]

I fitted water/meth injection to my skyline, and got an extra 25 brake despite already having an ENORMOUS ic. I plan to do the same on my vx, since its ideally suited to solving the charge cooling issue.

[lowcali]

Hi,

I'm running an Aquamist system, I run off the boost (0.9 bar activation) and it works very well, it helps with keeping temps down sure, but cannot work as efficiently as CC. It helps but doesnt replace a CC.

The position for the water inlet is on the centre line of the top hat, I have installed a t/c 10mm down from the inlet position.

Do you live in Germany by chance?

Cheers
Ian

Ok, tophat will be the location for one jet. Although it could be better to use two injectors one small before IC and another bigger in tophat. I´ll try only one jet first.
Unfortunately I live in Finland ;-)

I´d like to attach some pics, but it seems that my 500K is already used, maybe I'll stuck them to photobucket and link them to here later.

Janne

Edited by lowcali, 14 August 2010 - 08:08 AM.

[siztenboots]

Hi,

I'm running an Aquamist system, I run off the boost (0.9 bar activation) and it works very well, it helps with keeping temps down sure, but cannot work as efficiently as CC. It helps but doesnt replace a CC.

The position for the water inlet is on the centre line of the top hat, I have installed a t/c 10mm down from the inlet position.

Do you live in Germany by chance?

Cheers
Ian

Ok, tophat will be the location for one jet. Although it could be better to use two injectors one small before IC and another bigger in tophat. I´ll try only one jet first.
Unfortunately I live in Finland ;-)

I´d like to attach some pics, but it seems that my 500K is already used, maybe I'll stuck them to photobucket and link them to here later.

Janne

post pics in the user gallery , as the attachments don't work, see top left , 5th menu item, add pics to general or your own member area.

Edited by siztenboots, 14 August 2010 - 08:02 AM.

[lowcali]

post pics in the user gallery , as the attachments don't work, see top left , 5th menu item, add pics to general or your own member area.

Thanks for the tip! Another pic added above, there You can see the dash unit installed to my speedy. Today I'll install extra watertank and control box plus some of the wiring.

Edited by lowcali, 14 August 2010 - 08:12 AM.

[lowcali]

Hello again!

Today I did install the watertank. Container is a universal watertank which does not get any damage if methanol is added. It cost me 27€ and included a pump which I had to remove.



Before installing I needed to produce a holder for the tank.



Fitting was not too easy, We all know the lack of space in the engine compartment. Before lining the waterhoses and the pump and valve I'm gonna need to remove the engine cover and make some room to work with. Luckily Speedster is not as bad as my first car was (Morris Mini Cooper).

[danger7]

Hi The position for the water tank is okay, I had to use the luggage compartment as where you have put your tank I've installed a swirl pot and Bosch fuel pump I'd place the inlet just below the 'D' of your EDS logo on the top hat, probably would only use one mist point, but hey experimentation is all the fun Looks good. Cheers Ian

[Nev]

Lowcali, 1: If you install a water/meth injector before the CC you will find that the liquid condenses on the inside of the CC and creates a 'puddle' at the bottom of the CC. Then, because methanol reacts badly with aluminium, it will erode the metal of the CC (over time) and weaken/make a hole in it. Thus it is better to inject methanol as close to the inlet ports as possible. 2: If you inject methanol into your engine, you need to be aware that if has a higher octane rating than petrol (approx 114) and depending on mixture ratings, you will benefit from a remap. Good luck, I will be interested to see what benefits you get, as I considered this on my car initially and I may yet implement it if someone proves it's worth. Stephan Klasen has also toyed with this, may be worth ringing him. BTW, I see you have the Regal/EDS inlet manifold - can you let us know your full engine mod spec and show us the dyno graph please ? Nev.

Edited by Nev, 16 August 2010 - 05:44 PM.