Intercooler Water Spray

[E85LSX]

After some data logging with my maggy installed I noticed that this beast really heat soaks when driving slow and sitting at stop lights.

MY IAT's were around 40deg F over ambient when stopped and driving real slow. When driving faster >50mph the IAT's stayed about 20deg F over ambient. I'm ok with the 20deg but not happy about the 40deg diff.

I know some cars spray water onto their intercollers to help with the heat soak. I think certain subaru's do this from the factory. Has anyone here tried this?

Thoughts?

I may get a spray bottle and spray the intercoller at idle while wathing the IAT's to see if this idea will work at all. . .

[dracer98]

Intercooler? Your intercooler is sandwiched under the blower and midplate of manifold. That thing in front of your radiator with the hoses that go to your blower is a heat exchanger - it is designed to suck temps out of the water that is pumping through the cores. You do not need to use a spray bottle you can use a garden hose. Have your wife, girlfriend, kid or friend hose down the heat exchanger while monitoring your IAT data.

This is what I explained in other threads - the largest draw back to the Maggie blower has always been the heat disapation

40 degrees over is normal - If someone came up with a seperate tank that aloud the user to add ice for a drag race pass - there would be a market for sure. You heard it here first

[E85LSX]

Originally Posted by dracer98

Intercooler? Your intercooler is sandwiched under the blower and midplate of manifold. That thing in front of your radiator with the hoses that go to your blower is a heat exchanger - it is designed to suck temps out of the water that is pumping through the cores. You do not need to use a spray bottle you can use a garden hose. Have your wife, girlfriend, kid or friend hose down the heat exchanger while monitoring your IAT data.

This is what I explained in other threads - the largest draw back to the Maggie blower has always been the heat disapation

40 degrees over is normal - If someone came up with a seperate tank that aloud the user to add ice for a drag race pass - there would be a market for sure. You heard it here first

yea the heat exchanger in front of the radiator is what I'm referring to. . . the thing sandwiched between my blower and motor is just another heat exchanger, everyone running water/meth injection is already spraying that one ;-)

I know in the Subaru's the intercooler they spray with water is a air to air heat exchanger and the one I am thinking about spraying is a air to water heat exchanger but I'm not sure yet how or if this will affect the performance.

[8cd03gro]

40* over ambient isn't bad at all. In fact, that's damn safe. What you should be more worried about is what your IATs are after a WOT run or two. Like said above, you don't have an air to air intercooler. You could spray the heat exchanger, but it's not going to do much. Someone could easily set an ice box up for you. If you are really worried about it, you could do some water injection before the throttle body.

[dracer98]

Water injection without meth will be insignificant. The cores in the blower need to increase in efficiency. if you drop inlet air temp BEFORE the blower by 25 degrees it won't drop discharge temp AFTER the cooler cores due to STACKING. "Stacking" in this case refers to the air not being able to free flow through the cores as fast as the blower generates airflow which turns into pressure

[10aSSee D]

Ok so i will be putting a maggie on in a couple weeks is this something to be concerned about?

[99-LS1-SS]

Those number sound about like mine. I keep thinking...I can't wait until fall and winter! lol

[GQ4Life]

never seen it on a air to water intercooler but this is what some people use on turbo air to air intercoolers
http://www.ultrarev.com/080108.html

u can use water sprayer too just dont think it will cool enough for air to water..

[hypurone]

Personally I would get your tuner to modify your tune to run the cars' cooling fans once the engine coolant temp reaches 180deg. This will do more than spraying externally. Mine ramp up starting at 25% at 180deg up to 75% at 192...

Spraying internally will help a boatload. And you can get huge results with just water. Even tho another person posted not. I was running water only at 15psi on my RX7 and the IAT's/EGT's were awesome...Water has a very high latent heat absorption rate. Granted things get better with alcohol or meth...

[GQ4Life]

http://www.camaro5.com/forums/showthread.php?t=57585

meth inj will add octane and cool intake temps.. best way.. I have had this on my past cars,.. great safety tool and performance increase

[E85LSX]

I have the fans coming on as strong and soon as possible with the stock OS. I'm thinking about just regular water injection I'll see after I hit the dyno and data log some hard pulls.

So far just doing a little street driving the highest IATs are from heat soaking when stopped and not during WOT pulls.

[Total_Perf_Eng]

I wouldnt worry about it. Provided the Spark vs IAT tables are scaled properly, it is pulling a couple of degrees when it gets hotter. Its nothing to be worried about. You think thats bad, you should see the Eaton blower on the ZR1.. Now THAT is hot.

[E85LSX]

The only problem I have with that is that the nitrous or co2 will most likely end up in your intake and that wouldn't be good.

The theory behind the water spray is that it is a fine mist that will evaporate when it's sprayed on the heat exchanger and this us what will absorb the heat. If water is hitting the road to much is being sprayed. . .

[hypurone]

Originally Posted by E85LSX

The only problem I have with that is that the nitrous or co2 will most likely end up in your intake and that wouldn't be good.

The theory behind the water spray is that it is a fine mist that will evaporate when it's sprayed on the heat exchanger and this us what will absorb the heat. If water is hitting the road to much is being sprayed. . .

The bad thing about spraying water externally where it dries on the component, is it can leave behind mineral build up etc which you see as a white coating/spotting and the possibility of corrosion.