What to use the 3rd cooler for on my new radiator?

[redmanfx]

......Just installed a new CSF radiator and noticed it had three coolers which differs from my origional radiator that only had two. One is for the water/antifreeze of course, the second is used for the transmission fluid before it goes to the extra transmission cooler and what to use the third cooler for???? I really don't know what I could have flow through that one that would actually need cooling. PS doesn't get that hot and I'm not racing to need brake fluid cooled.

Then I started thinking about future applications and still couldn't really think of much. So I ask you for ideas.

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[elwesso]

Id go with PS fluid, because yes, it DOES get that hot... Thta would be an ideal situation for a heat exchanger IMO...

Either that or you could use it for engine oil you could rig it up real niceto use a remote oil filter...

[redmanfx]

Id go with PS fluid, because yes, it DOES get that hot... Thta would be an ideal situation for a heat exchanger IMO...

Either that or you could use it for engine oil you could rig it up real niceto use a remote oil filter...

I like the oil cooler idea How do you set up a remote oil filter? That would be very nice....

PS would be very easy to set up and especially practical for me due to my conversion from an active system with the bigger pump. I'll have to think about this.

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[Jeff Williams]

I thought the active system had it's own cooler and fan. Can't you use that for the PS fluid?

I vote for oil cooler.

[elwesso]

I think he took out the active cooler...?

Look for posts by squeefoo and see how he set his up. you can use remote oil filter kits from the Z32, since the Z and the Q use the same oil filter

[Q45tech]

The term cooler is relative, since the coolant surrounding the pipe can be very hot. The passenger side unit will be 15-20F warmer than the driver's side exchanger.

[Raxephon]

I vote for oil cooler.

I'll second that notion

[DrewQ45]

Ya know,

All those running with the external transmission fluid cooler (myself included) should have free lines on the rad for engine oil cooling. I wonder what the best method would be for tapping into the oil flow? I suppose it would cause the oil capacity to rise a bit too. Lastly, any ramifications to cooling the oil such as the engine running too cold or oil pressure dropping due to the extra traversing?...Drew...

[Q45tech]

How do you know the oil needs cooling?In 6 years on boards never seen anyone measure the Q oil temperature in the pan under varying conditions. I've use IR on pan at idle and after a hot run.

Not a good idea to let the oil drop below 180F as the moisture/fuel won't evaporate fast enough.

Oil temp is stablized by coolant temp thus ideally one would worry about having an ideal coolant temp not raising coolant by adding heat from use of in rad exchanger. Right!

The SUS viscosity of oil is measured at 212F [100C] where water boils for a reason.

http://www.hotrod.com/techarticles/44618/

[DrewQ45]

How do you know the oil needs cooling?In 6 years on boards never seen anyone measure the Q oil temperature in the pan under varying conditions. I've use IR on pan at idle and after a hot run.

I don't.... I guess the optimum time to monitor oil temp would be when sitting in stop n go traffic on a hot summer day...which would necessitate the having an oil temp gauge already installed.

Not a good idea to let the oil drop below 180F as the moisture/fuel won't evaporate fast enough.

Sounds very logical... That would be my main worry... I wonder how much the temp would drop with the oil being circulated through the radiator? Shouldn't be too much as the heat exchanger is small...reason why we opted for transmission coolers in the first place.

Oil temp is stablized by coolant temp thus ideally one would worry about having an ideal coolant temp not raising coolant by adding heat from use of in rad exchanger. Right!

Right, but at the same time, cooling the oil should bring down engine temps anyway which is the primary purpose of coolant in the first place... it should balance out...no? Guess measuring coolant temp at that point would be prudent.

[Jesda]

You dont necessarily want engine temps to drop. You want them to stay around 180F. Better combusion, etc, etc. 170-180 are already what I consider unusually cool, as a lot of American engines run at 195-215.

[elwesso]

I agree with jesda.... You dont want engines to be as cool as possible, you just want them to stay in the "zone".. in the Q world, that is 174 to 194.999999F

[defrag010]

I always tell everyone to Steer clear of the 3-n-1 radiators. I have seen Too Many of them crack when the car is overheated slightly and mix together.

Mixing in coolant with your ATF is a quick way to kill a transmission.

[redmanfx]

I removed my active cooler when I converted the suspension.

I'm not going to use the 3rd cooler for now, but would not be afraid to use it in the future for something like the PS fluid. My transmission fluid runs through the 2nd cooler on the radiator and then runs through the extra external cooler.

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[maxnix]

I wouldn't PS through a radiator heat exchanger, but rather its own dedicated cooler. Too much thermal stress as it is already.

[redmanfx]

Well it sounds as if it's not really wise to use the 3rd cooler at all then. Good thing I didnt' run anything through it when I installed it.

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