Water Injection: meme or truth?

>>17787889
you fucking what

File: water 2.jpg (1MB, 3253x2349px) Image search: [Google]

1MB, 3253x2349px

>>17787913
inducing small amounts of water into the engine
I'm using the simplest way I can think of, which is venturi effect and some valving where the crankcase vent goes.

>>17787889
What the fuck

i prefer coin gearshift injection if i'm going to make funny troll posts about fucking up a car

OP, you do realize that water injection by itself does nothing, right? It was traditionally used to prevent preignition in engines running a really high compression ratio.

>>17788065
its not a troll post, just a 350 with 265000 miles. Combustion with ethanol-containing fuel creates water vapor anyways, so how do you think slightly more would harm an engine with clearances wide enough to fit your dick in?

itt: anon rigs up a bullshit water system to troll /o/ for replies

>>17788070
I'm aware, I plan on advancing timing over the weekend or monday, I'm just curious if it'll boost highway economy with just added water.

>>17788072
>>17788071

>>17788073
You are going to fuck up your engine, nigger

>>17788084
please explain how more water will affect my engine, when fuel combustion creates water in the first place?

I think you have a minimal understanding of engines

>>17788102
the air/fuel mixture is compressible. water is not so easily compressible. you're going to blow your engine through the hood, our through the floor because of the pressure it encounters while trying to compress water.

>>17788215
I highly doubt that, given my stock 8.5 or 9:1 compression and loss of compression via 260,000 miles of runtime

it doesn't inject near enough water to increase compression noticeably

Blasting that shit with steam might help clean deposits off the valves but I'm not convinced it does anything special.

>>17788262
from what I've read it reduces knocking and might increase gas expansion upon detonation, so I was just curious to see if it does make a difference

it definitely does clean, for the forst several miles it smelled like hot shit burning

>>17788273
I can definitely believe it reduces knocking but the gas expansion sounds iffy. I wonder if the water might slow the expansion of the combustion enough that it reduces torque, particularly at high RPM. I would also worry about running all that steam through the catalytic converter (if applicable). It would probably clean it but it might start to corrode inbetween driving sessions.

>>17788287
My engine is anemic to begin with, but known for being very torquey at low rpms, so I'm hoping it would benefit overall

I'm not too worried about the cat, its 23 years old so I imagine most of the noble metals are gone out of it by now

Snow Performance

Water/Alcohol injection has many benefits

OP is doing the redneck version of this

I've got water injection on my Toyboata 1VD. Shit goes great guns. The pump is regulated at 150psi with a 625cc nozzle and an older progressive controller. With water alone there is a noticeable benefit but even at 15% methanol it's fucking happening. My charge air temps plummet and the power increase is very noticeable.

A 1VD isn't a SBC but still, I'm a fan.

>>17788455
sounds nifty, I'd do a progressive controller, but I wanted to start off with something 100% mechanical.
I'll have to toy with changing the water composition now that you bring up methanol, but that'll be after I get some kind of baseline

This is nothing new.
>Cleans combustion chamber
>Reduces knocking
>May help due to expansion when heated

I have a 1920s engine that has this even.

>>17788858
funny you say that, I have a model A, and the vacuum fitting on the manifold was looking like a prime spot for water injection, since it doesn't use it for the original windshield wiper anymore

>>17788833

Even an aspirated engine should feel a good whack from mixing methanol with the injection water. Just keep it under 50% by volume and it is quite safe. Over 50% and the mixture becomes flammable and will emit vapours at room temperature.

At 50% though my big upgraded clutch is very fucking unhappy. It's a massive hit when you can finely atomise 50/50 water meth.

>>17788895
sounds like something to try
I have some atomizers I was thinking about using in the future, but I am too lazy to grab a 12-24v converter right now.

Looking at the price of controllers, I'll probably wait till a used one shows up somewhere

>>17788858
Might sound alright until you get water in your oil