Anyone had experience with water injection system? Mist or fine droplets of water are injected into the intake manifold.

Benefits of WIS:

Steam resulted from the heated water will remove carbon deposits for cleaner engine.

Eliminate pinging or detonation which is harmful to the engine.

Better FC for NA car, higher compression for better power means less throttle can be used to travel at the same speed dueto lower intake temperature. More power for forced induction engines to run on higher boost without detonation.

http://www.maxperformance.com.my/catalog/p...products_id/197

With a brass nozzle, silicone tubes, water pump, 1 way valve, simple switch and fuse...I doubt it could cost more than RM300..

Anyone use decarboniser to clean their engines? same concept like using water steam to clean carbon deposits.
http://forum.lowyat.net/topic/401938/+120

Is this really work or normal water could do the job already. Just spray fine water droplets using a spray bottle into the carb or PCV hose to the intake manifold.

1st time i m hearing .... i m shock ... what kind of technology is this ?

It's actually a simple old technology - just spray water or better mixed with ethanol into the engine. Used in WW2 turbocharged fighter planes to increase power instantly and lengthening their service interval.

For cleaning purpose that is called steam cleaning, I did try to inject water into my engine by letting the manifold vacuum suck the mist of water. Nothing bad happen afterwards. I guess you need more like 1 litre of distilled water to get the effect. No direct hose spray, fine mist of water would do.

wow.. really dint know that.. thank you so much for sharing...

i am just about to start RnD for this...hehe

i also would like to try... haha... using the water spray.... next 2years when i go back to Malaysia.. i ll try.. haha

i diy-ed before...







vr vr little improvement... but in long term, i afraid might cause rust to my pistons and valve...

therefore, i removed it already...

very very little improvement ? then how you notice ? or there is no different ?

cool....EFI engine also can use

yes, there might be no difference at all... jz as a consolation to my diy effort, "got abit difference la"....

Turbo Sang did that before in his supercharged SGTI. to bad i've lost the article
and i don't think it's that straight forward since in the article did mentioned an extra ECU, water pump and four separate fuel injectors for this kind of mod.

Only inject water when th engine is under load - vacuum suction during idling is stronger. So better build one with pump and switch. Turning off the injection minutes before we turn off engine will ensure all excess water is gone. There should be some gains cos water is a good heat absorbtion.

Tha's hard, need to build a controller and tap into our sensors..not easy la hehe. But there's a guide how to do ourselves on the net

Some rally cars have been using this method quite some time already.

have done this before on my carb engine and low end really improves, same method as catacumbs , but during idling a bit messy...ur idling will be freaky or maybe i use those aquarium stones are too big hence too much water masuk intake

hyundai used this in their WRC car.

story goes they were penalised as they were only supposed to stop for refuelling, and not filling up the water tank in the boot that's supplying the system.

So far i only heard this is used in force inducted engines to reduce the combustion temp slightly to control pinging. I think imprezas have them.

no la, imprezas have the spraybar to cool down the intercooler, not by spraying into the engine.

i had this 2 years ago . but i add methanol to the water. 50% water and 50% methanol . running 18psi of boost with this . using a 60psi shurflo water pump , controlled by a 12v DC water solenoid and injected tru a brass nozzle just right before the throttle body .





anyone tried CO2 cooler ? abit similar ..

CO2 Tank --> Nitrous Solenoid --> Nitrous Nozzle ... simple as that .

how do go get methanol here? O.o
homebrew?

its quite easy to buy if you know how and where