Those of you that are running water injection, I'm assuming that you're monitoring your intake temps. Obviously the WI nozzle needs to be upstream of the temp probe--how close to the temp probe can I place the nozzle and still get an accurate reading?

 

I have a special setup on mine. in the throttlebody elbow I have a 90 degree elbow that holds my injector. this injects the water toward the air flow (in the direction of the intercooler). This causes the water to evaporate almost immediately.

If you you use the right nozzle size and the right location you will be fine. If your using a single stage kit, you should place the nozzle as close to the exit tank of the intercooler as possible. Or a better way to say it, as far from the engine as possible.

For a dual stage kit, put one at that location and one in the elbow closer to the engine. The one closer will be a very small nozzle.

hope that helps

 

I've got an aftermarket intake temp probe-so I'm trying to figure out how close to the probe I can put the nozzle and still record accurate temps. If I put the WI nozzle within a couple of inches of my after-market temp probe, will I still record accurate intake temps?

 

as long as the waterinjection nozzle is downstream (further towards the block) than the intake temperature sensor, you should be fine.

I would make it at least 3 inches above the water injection port. the cooling effect of the water will not extend INTO the air current, but you don't want your air temp probe getting wet either.

 

I was thinking the other way around .. I would think that the temp probe should be downstream of the nozzle because I want to monitor how hot my intake temps are -- after it's been cooled by the WI.
In other words, I want to monitor how much the WI is cooling the intake air.

 

agreed i think that will be fine a little mist wont hurt.. giver a shot

 

In my setup I have a dual stage system and I have 2 intake sensors. In both cases the water injects about 12 inches prior to the sensor. Interms of the stock sensor my water injection nozzle is aimed toward the flow of air so when it mists it atomizes much faster. By the time the water gets to the sensor, its already evaporated.

I installed a system on a guys car this weekend, this may help you get some ideas.

http://www.coolingmist.com/installation.html