Oil Cooler Spray

tweiss3 · 06-20-2011, 11:09 AM

I can't go synthetic as of yet, stock OMP is in place. I full agree reading traffic, but I am doing this as a backup. You now, being in a tight spot, creeping temp but having to move, that i can atleast spray and move before shutting down for a while. I'm gona mock it up tonight and see how well it works.

Pete_89T2 · 06-20-2011, 11:40 AM

Ok, I'd be interested to see what results you get when you test this. I would suspect you will need to spray a significant volume of water over the cooler before you see the oil temps drop a few degrees. Reason being is you need to cool off the thermal mass of the oil cooler itself before it can start to cool the oil. That's a big & hot hunk of AL.

One idea for a quick test before building anything. Pick up/borrow a tank sprayer (gardening type). Then run your car till the oil temps are heat soaked to the 200F mark, and let it idle. While idling, get an assistant to use the tank sprayer to apply a constant fine mist over the entire surface of the oil cooler. Monitor your oil temp gauge and time, record the oil temperature vs. time. You're trying to measure temp drop over time. Since you're using a tank sprayer, and if you run it till empty, you've also measured the volume of water required to obtain the temp oil drop vs. time. When the tank is empty, test is over, and you'll have a pretty good characterization of how the system would work.

06-20-2011, 11:09 AM	#1
tweiss3 Mazda Lover Join Date: Aug 2010 Location: Akron, Ohio Posts: 319 Rep Power: 15	I can't go synthetic as of yet, stock OMP is in place. I full agree reading traffic, but I am doing this as a backup. You now, being in a tight spot, creeping temp but having to move, that i can atleast spray and move before shutting down for a while. I'm gona mock it up tonight and see how well it works. __________________ 2004 Mazda6 V6 5-spd - still waiting on money for a motor 1991 Mazda RX7 NA 5-spd - my new DD with 145,000 miles

06-20-2011, 11:40 AM	#2
Pete_89T2 Lifetime Rotorhead Join Date: Apr 2010 Location: Elkton, MD Posts: 874 Rep Power: 16	Ok, I'd be interested to see what results you get when you test this. I would suspect you will need to spray a significant volume of water over the cooler before you see the oil temps drop a few degrees. Reason being is you need to cool off the thermal mass of the oil cooler itself before it can start to cool the oil. That's a big & hot hunk of AL. One idea for a quick test before building anything. Pick up/borrow a tank sprayer (gardening type). Then run your car till the oil temps are heat soaked to the 200F mark, and let it idle. While idling, get an assistant to use the tank sprayer to apply a constant fine mist over the entire surface of the oil cooler. Monitor your oil temp gauge and time, record the oil temperature vs. time. You're trying to measure temp drop over time. Since you're using a tank sprayer, and if you run it till empty, you've also measured the volume of water required to obtain the temp oil drop vs. time. When the tank is empty, test is over, and you'll have a pretty good characterization of how the system would work.