would getting the aquamist water injection ($500) create the same effect of a larger tmic (approx $1000+)?

 

No.

 

I agree with the no. All water squirteres "do" is technically give you back the efficiency your intercooler has when its nice and cool. A larger intercooler will give you more efficiency than stock. I would guess that a good tmic would have to same efficiency when hot as a cool stock tmic, or close to it at least.

 

hmmmm, interesting question....i don't think anyone has done a test before, so everything is just speculation

but if i were to have guess, it would be as equivalent or better then a larger intercooler, however, u do have a limit in term of the amount of water u can carry, so if u always need it on to be equal to a larger tmic, then the tmic will win out in the long run

 

Think about it in terms like this:

Water, in a tank, in the back of a car is unlikely to ever exceed 75-80 degrees.

Much cooler than the intake charge coming from the turbo, and cooler than the output side of the IC.

You would be hard pressed to use 2 gallons of water in a tank of fuel.

We used the ERL system, with the biggest jets to do some equipment testing in an eviroment chamber. We ran it for 24 hours straight and used less than 10 gallons of water.

If the goal is to achieve lower intake charge temps, water injection will cool more.

Ever been to a gas station that doesn't have water?

 

You are refering to water injection to give you the same effect as 100 octane gas right? Not an intercooler sprayer deal. Just trying to get the thread pointed in the right direction.

I have no answer for you. But AussieinStLouis and Clubwrx.net has water injection, might ask him.

 

as water doesn't compress, injecting it into your intake charge will also effectively raise your compression, thus a different effect then a new intercooler.

the answer to your question is "no."

 

http://not2fast.wryday.com/thermo/wa..._chemistry.txt

http://not2fast.wryday.com/turbo/glo...rbo_calc.shtml

http://www.rallycars.com/Cars/WaterInjection.html

 

It depends on what turbo you're running and what engine management you're using.

Water injection allows you to run leaner and to advance timing. If you can't tune to tke advantage of it, you've wasted your money. Same thing goes for a FMIC though.

Unless you're running a MONSTER turbo, a good aftermarket TMIC with water injection will probabaly yield the great results.

If you can tune for it.

What water injection system did you buy for $500?

X

 

to answer HIS ORIGINAL QUESTION, no.

This is taken from Autospeed.com:
A new TMIC will increase the cooling capacity of your intake. It seems straightforward enough. An intercooler acts as an air/air radiator for the intake air, cooling it after the compression of the turbo has caused it to get hot. The compressed air passes through the intercooler, losing its heat to the alloy fins and tubes that form the intercooler core. This heat is immediately dissipated to the outside air that's being forced through it by the forward movement of the car.

The trouble with this analysis is that - for a road car - it is not entirely correct. Huh? So what actually happens, then?

In road cars, intercoolers act far more often as heat sinks rather than as radiators. Instead of thinking of an intercooler as being like the engine coolant radiator at the front of the car, it's far better to think of it as being like a heatsink inside a big sound system power amplifier. If an electric fan cools the amplifier heatsink, you're even closer to the mark. Importantly, because the power spike is just that (a spike, not a continuous high output signal), the heat that's just been dumped into the amplifier's heatsink is dissipated to the air over a relatively long period. This means that the heatsink does not have to get rid of the heat at the same rate at which it is being absorbed
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more: http://autospeed.com/A_0115/cms/article.html

Water injection is used to suppress detonation. Detonation occurs when the flame front does not burn progressively across the combustion chamber but instead explodes into action. This causes a massive and sharp increase in combustion pressures which can damage pistons, rings and even heads. Detonation can sometimes be heard as a 'tink, tink' sound coming from the engine.

Water injection works in three ways. Firstly, when the water is injected into the intake system prior to the cylinder head, the small droplets absorb heat from the intake air. Water has a very high specific heat rating (it can absorb lots of energy while only slowly increasing in temperature) and so the intake air is initially cooled. Next, the small drops of water start to evaporate. Water has a very high latent heat of evaporation (its change of state absorbs a lot of heat) and so the intake air charge is cooled still further. Finally, when the remaining water droplets and water vapour reach the combustion chamber, steam is produced. This acts as an anti-detonant and also keeps the interior of the engine very clean, so preventing the build-up of carbon "hot spots".

While the intake air will be lower in temperature (and so denser) when a water injection system is operating, the presence of an increased amount of water vapour in the air means that there is less room for oxygen. It is for this reason that dry air (that is, air with a low relative humidity) can allow an engine to develop more power. So when the air is cooler but its water vapour content is higher, will more power be developed? If no changes are made to air/fuel mixtures, theoretically the two factors almost exactly cancel each other out.

This means that if water injection is used without any changes made to the tuning of the engine, improvements in power are possible but not probable. However, if the engine air/fuel ratio is leaned out, or boost is increased, or the ignition timing is advanced, more power is very likely. Supercharged aircraft engines using water injection had mechanisms that leaned out the air/fuel ratio simultaneously with the operation of the water injection. However it is very important to note that making random changes to the air/fuel ratio and ignition timing at high engine loads can be very dangerous for the health of the engine. Such changes should be made with care - it is very easy to blow up a forced induction engine with random leaning of the mixtures and/or ignition timing changes


more reads:
http://www.autospeed.com/A_0868/cms/article.html
http://www.autospeed.com/A_0084/cms/article.html
http://www.autospeed.com/A_0090/cms/article.html
http://www.autospeed.com/A_1618/cms/article.html
http://www.autospeed.com/A_1619/cms/article.html
http://www.autospeed.com/cms/A_1815/article.html

 

edit: found some more:

Intercooling
benefits:
Reliable
System can be very simple
Always improves power
System break-down usually immediately recognisable
No ongoing maintenance

disadvantages:
Weight
Bulk
Major underbonnet changes
Usually poses a flow restriction

Water Injection
benefits:
Very effective at preventing detonation
System components can be spread around car
Can be used to inject octane booster
Generally low cost
No intake flow restriction
Reduces emissions

disadvantages:
Requires regular filling of water tank
System breakdown can be difficult to recognise
Large filled water tank is heavy
Variable flow systems are complex
Effectiveness will vary depending on weather