Oil cooler and radiator spray cooler. DYI with vid
 

Parts needed:
Drill and bits - to drill the 1/4" hole for the nozzles. Bumper does NOT have to be removed. You just have to drill at an angle. Start with a smaller bit for the pilot holes and work up to the 1/4" bit. Then the nozzles will actually screw in and be secure.

Nozzles - see pic below for what I used. Can be picked up at major auto parts stores.

Vacuum line - I used 5/32" line. I used 15' of line which was too much, but better than not having enough.

Vacuum 'T' connectors - I used 3 of them in my setup. You can use 2 'T' connectors and 1 'L' connector for the end.

Zip ties - Optional. I didn't use them.

Installed windshield spray nozzles into the bumper. Disconnected (not spliced) the OEM nozzle line. Disconnected up by the passenger side hood hinge. Then ran new line from there. Activates using OEM wiper stalk in the car. You can uninstall the wipers so they don't move if you want. Couldn't locate a fuse to turn off the wipers.

Also since the nozzles are below the wiper fluid reservoir the fluid will drip out slowly AFTER you activate the first time. Just hook back up the factory line to stop the pressure leak. Takes 5 seconds. Edit: I noticed it stopped dripping, but I think that might be because the fluid level in the reservoir got low enough that the pressure went down.

Plan on using this during track days on the big straights. It is a pretty fine mist and shouldn't be an issue.

I have no expectation that this will be any kind of miracle cure, but it can't hurt and I thought it would be a fun DYI.

The pics are self explanatory. You can see where I ran the line under certain panels so they don't get pinched with the hood.





http://www.the370z.com/members/antho...sizerender.jpg

http://www.the370z.com/members/antho...5-img-2502.jpg

http://www.the370z.com/members/antho...6-img-2500.jpg

http://www.the370z.com/members/antho...3-img-2506.jpg

http://www.the370z.com/members/antho...7-img-2501.jpg

Interesting.

I used to have a setup just like this on my 135i...worked surprisingly well although that thing got much hotter much quicker than the Z. Did have to buy a solenoid kit for it otherwise once you turn it on it would siphon out all the fluid. Let us know how it works.

No solenoid. Just factory wiper fluid pump.

Think I'm going to run a check valve as suggested by another member. It should stop the slow drip that happens after you activate it the first time. Think it's caused by the nozzles being lower than the fluid reservoir.

I did notice that the drip stopped after I used up some of the fluid during testing. Think the level dropped in the tank which lowered the pressure on the nozzles.

Worse case it takes 5 seconds to hook back up the OEM line to stop the drip when you get off the track.