Well i was bored today after i got home and started tinkering with my car. I hooked up our auto xray diagnostic unit and was checking things with it. I got an idea when i saw air intake temp so i took it out on the road and did some testing. Once on the road at about 55mph it was at 117 degrees and then i held down the manual sprayer button for a minute to see if intake temps would change. After a few seconds it started going down and went down to 108 degrees. I stopped for a minute to play with it while the car was running and tried it again. It stared at 123 degrees this time and leveld out to 120 when i started driving. I held the button again for a minute and went about 65-70mph and it started dropping and went to 98 degrees at the lowest and then stayed at 99. So i guess it does do some good with cooling the intake temps a little. By the way it was about 80 outside so im wondering what kind of difference it would make when it gets cool out at night. Just thought some of you might want to know this.

 

Wow, thats pretty impressive. Thanks for the info man.

 

you're measuring the intake temp at the filter side .. not post turbo side .. the lower temp come either from the prolonged driving at the speed or you've cooled the engine bay enough to register a lower intake temp.. .. you'll also find that intake temp drops more as you floor the car too (probably from the higher velocity air being sucked in)

you need to put a temp probe after the intercooler to measure the effectiveness of the waterspray .. it is VERY effective when the intercooler is heatsoaked thru heavy driving..

 

if I had a way to test I would love to mess with it in my 107 weather....I would be intrested in seeing what happned

 

bingo, those numbers are pulled from the MAF sensor, nice attempt though...

 

i have a power fc runnoing maps...and it has a temp sensor plumbed after ic and i tried this same thing and it only cooled a maz of 2 degrees...

 

what fluid were u running in the ic sprayer, water, washer fluid? also how fast were u traveling and what was the outside temps?

thanks before hand

 

The outside relative humidity makes ALL the difference in how effective the sprayer is. If it is 100% humidity, it will make zero difference. If it is 5% humidity, it can drop the temperature as much as 30 degrees...

 

sorrry ....i was running water and outsidee temp was 90 degrees.....and it was fairly humid....im debating on taking out my water sprayer tank and running my intake down into fender

 

try one more pull filled with washer fluid.. problem with water is it vaporizes to quickly withough drawing as much heat as the washer fluid will... I'm curious to see how much different the two are

 

Well i thought either way it shows the ic sprayer does something effective.

 

ya i too believe it does, but it wasn't designed for short term racing.. it was designed to be used over long periods like roadraces or sometihng that last alittle longer then a few secs or mins.

 

The owner's manual (has anyone read it?) indicates that manually activating that sprayer for more than 10 sec may burn the motor.

Just FYI, FWIW.

 

I hapen to knotice that when I leave it on auto, like I do whenever I drive in my heat, that my MPG seems to be better....maby because it has been a dry heat for a while and the air coming in is beeing cooled well...but anyways just some info

 

I wouldn't use straight water unless it is distilled water. Regular water contains minerals that will create scale upon evaporation. You don't want this.