Oil cooler to bring down coolant temps?

[dville_gt]

Just wondering if anyone has seen a measurable decrease in coolant temps with the addition of a oil cooler. My turbo lsx coupe stays cool currently, but with the warm weather this weekend and me running a/c it started creeping up pretty good on me. I doubt it'll be able to keep cool when it gets real hot with the a/c on. My oil temps where hovering around 230-240* once fully warm.

I was wondering if I added a cooler on the oil and I could bring those oil temps down if that'd have any effect on coolant temp.

My only other option is to try to fit a pusher on the front of my intercooler to help the mark 8 fan. I am not real suprised it is having problems since the air has to go through a 3/4" trans cooler, 4" intercooler, 1" a/c condenser, and 3" radiator (total of about 9" of core that the fan is trying to pull air through (plus the gaps between).

[green1995gt]

You can try moving the tranny cooler somewhere else and mounting a small e-fan on it, thats what I see a lot of people do.

I have no idea on the oil cooler I almost feel like it would heat the coolant more than cool the oil but I really dont know.

[dville_gt]

I am thinking that adding a 12" pusher on the front will probably be the best bang for the buck. Only problem is finding the room in the front of the intercooler. I'll have to cut up the bumper support to fit it in there and the 12" low profile fans only move about 900cfm.

[Lone Sailor]

Have you already tried the coolant additives? What weight of oil are you running and is the tune on the lean side?

[dville_gt]

Have you already tried the coolant additives? What weight of oil are you running and is the tune on the lean side?

Running 100% distilled water w/a bottle of water wetter for lubrication. Running 5w30 mobile 1. Tune is pretty much spot on 14.6:1 during cruise. It goes slightly lean in low map "cruise" areas of the VE table.

[94mstng94]

Do you have the gaps between each radiator sealed to only allow the air to pass through, or do they allow the air to be deflected either up, down, or sideways?

How about a shroud?

[Lone Sailor]

Being right on the bubble of stoich I would try making it slightly more rich and see if that makes a difference.

[KBScobravert]

E85!

Sent from my SAMSUNG-SGH-I727 using Tapatalk

[dville_gt]

Do you have the gaps between each radiator sealed to only allow the air to pass through, or do they allow the air to be deflected either up, down, or sideways?

How about a shroud?

the gaps are about 1/4-1/2" between each. once the air goes through the intercooler it should have enough direction to keep flowing through all the cores. the problem is the lx front bumper just has so little opening for air. i have cut the opening as much as i can tastefully do (i.e. without it looking like it was cut), but it still has very little opening to "clean" air. that is why i think it's going to want a pusher and puller setup, i think the puller is probably getting a lot of air from between the cores that is hot, i do have a shroud but it is the factory mark 8 electric fan shroud.

[94mstng94]

You would be surprised how much air is lost in those gaps. A push/pull setup seems like it would work. I assume it overheats mosly while sitting still? Does it maintain proper temperature once you get moving?

I ran a 2" black plastic angled scoop under the bumper on my 94 to force air from under the car up through the radiator. This helped with my low speed cooling. The scoop was from a late 90's Lexus ES.

[dville_gt]

Do you have the gaps between each radiator sealed to only allow the air to pass through, or do they allow the air to be deflected either up, down, or sideways?

How about a shroud?

You would be surprised how much air is lost in those gaps. A push/pull setup seems like it would work. I assume it overheats mosly while sitting still? Does it maintain proper temperature once you get moving?

I ran a 2" black plastic angled scoop under the bumper on my 94 to force air from under the car up through the radiator. This helped with my low speed cooling. The scoop was from a late 90's Lexus ES.

it doesn't seem to matter if i am moving or not, just steadily rises and rises. it is definitely related to the a/c, once i turn it off it goes back down. i think when the a/c is on the condenser gets hot and overwhelms the system.

[black2002ls]

Not familiar with that fan. Is it a dual set up? If so is it wired to cycle the fan with the compressor? Or is it wired to run all of the time?

If you have an adjustable thermostat you can start the fans at a little lower temp to try and get a jump on the heat.

With the bumper, you may try the lower scoop as mentioned earlier, or fab some closeout panels to direct all of the air coming in that lower lx opening to the radiator area, think nascar set up. They create a tunnel from the front openings to the radiator.

Sent from my SAMSUNG-SGH-I897

[94mstng94]

Is that fan wired for two speeds? I wonder if it's running on low. My Taurus fan on my Jeep is two speed. I'm running a controller from Www.dccontrol.com
The controllers he offers are awesome. There is also some great info on his website. Don't get in a hurry if you order from him, I think he builds them after you order.

Here's a cell pic of mine



Chris

[dville_gt]

mine is wired on high speed only using the pcm to control it. it is on full time with the a/c.

[Sam88gta1]

Dropping oil temps 10 degrees will lower coolant temps 3-4 degrees at most. Adding a oil cooler will lower oil temps 15-25 degrees IF you can get sufficent airflow to it. More airflow the better obviously.
You need a external oil cooler with what you are trying to do with the car.