Jump to content
SAU Community

Recommended Posts

I remember reading somewhere on here in the past that someone had tried some large pc computer case fans on there remote mounted oil cooler, as they weren't able to find a thermo fan small enough. My oil temps aren't exactly out of control, but I do have a couple of 120mm and 200mm case fans from old pc's not put to use. Most pc fans seem to flow less than 50cfm, I've seen some jaycar ones that flow 100cfm but that still doesn't sound like it's enough to be effective?

Has anyone found a small enough thermo roughly 15cm's wide? (to fit a greddy oil cooler) that works?

Or, has anyone actually had good results from using a large case fan/s?

Link to comment
https://www.sau.com.au/forums/topic/213689-oil-cooler-cooling/
Share on other sites

Yeah it's more of a boredom thing :laughing-smiley-014: (90 oil temp on cruise, doesn't go over 100 oil temp ever) I'd still like to see it back down to about 85 on cruise.

Relocated the oil cooler from behind the fmic, to being in the driver's footwell. I found that oil temps are slightly higher with no thermo fan drawing air through, even though it's in the air dam on the driver's side now.

Edited by silman
Yeah it's more of a boredom thing :laughing-smiley-014: (90 oil temp on cruise, doesn't go over 100 oil temp ever) I'd still like to see it back down to about 85 on cruise.

Relocated the oil cooler from behind the fmic, to being in the driver's footwell. I found that oil temps are slightly higher with no thermo fan drawing air through, even though it's in the air dam on the driver's side now.

:laughing-smiley-014:

Have you ever though of getting it out on the bonnet...like a rex bonnet scope?

Seriously....having a higher running oil temp..ie around 90 to 95............not over 110...

can only work to help your motor sustain a better life.

Engine oil is not like water....it does not boil at 100.... :D

Boredom......can kill a man

Not sure a 120mm PC fan will do much, might not like being bolted a 1000C core either. Dont be fool into thinking a 12V PC fan is the same as 12v automotive unit. A typical 80amp alternator and 400amp battery allows quiet meaty motors used in the automotive area.

Have you got an aftermarket w.temp gauge, or PFC that shows temp? My understanding is, that your not likely to get your oil much cooler then your water due to how close they're linked (and the OEM oil<->water exchanger)

Maybe a automotive style 8" would fit on its side...?

Edited by GeeTR

I ended up purchasing a 7" thermo, will be doing an install this weekend and posting my results.

The pc fan thing was a joke, someone on here had actually done it but as i said, i can't find it in the search results and i can't remember what the application was used in.

As a matter of interest though, there are 12 volt fans for pc's, notably the 20cm Antec style used in there better pc cases.

nice idea - i wanted to do this to my auto trans cooler when i had my R32 but couldn't fit a fan to it given where it was mounted... my idea was to wire it co come on with a switch or with the standard radiator fan to cool it when at idle (eg in traffic on a hot day), and let it go off when the car was cruising

i plan on doing this to my intercooler (and oil cooler when i get one) - run one of those water sprayer kits that activate on a certain psi. if you were handy with the tools you could probably hook up one yourself with a button you press whenever you think your temps are getting a bit high.

my cousin had one of those kits on his rex and worked really well.

Well, it worked :D I purchased a flex-a-lite 7" thermo and mounted it to the back of the oil cooler. Oil temperatures dropped 6 degrees with no other changes. This is just an indicator of the difference with regular street driving.

I've got it controlled by a pivot fan controller, one spal 12" high flow fan pushing onto my air-con condensor, through to my radiator.

The other is the oil cooler thermo, pulling air through from behind the oil cooler.

This is in an RB25DET 180SX. I'd expect an even better result in a Skyline engine bay.

http://img444.imageshack.us/my.php?image=picture002cu4.jpg

http://img185.imageshack.us/my.php?image=picture001ej2.jpg

http://img185.imageshack.us/my.php?image=picture006oq7.jpg

but i dont understand you do u want to put a thermo behind a remote oil cooler? i just installed my cooler right behind me front bar and im not thinking its running a bit too cold when cruise. i think the oil cooler itself drops oil temp dramatically.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I got back to Japan in January and was keen to get back on track as quickly as possible. Europe is god-awful for track accessibility (by comparison), so I picked up a first-gen GT86 in December just to have something I could jump into right away. The Skyline came over in a container this time and landed in early January. It was a bit battered after Europe, though—I refused to do anything beyond essential upkeep while it was over there. The clutch master cylinder gave out, and so did the power steering. I didn’t even bother changing the oil; it was the same stuff that went in just before I left Japan the first time. Naughty. Power steering parts would’ve cost double with shipping and taxes, so knowing I’d be heading back to Japan, I just postponed it and powered through the arm workout. It took a solid three months to get the car back on the road. Registration was a nightmare this time around. There were a bunch of BS fees to navigate, and sourcing parts was a headache. I needed stock seats for shaken, mistakenly blew 34k JPY on some ENR34 seats—which, of course, didn’t fit—then ended up having the car’s technical sheet amended to register it as a two-seater with the Brides. Then there’s the GT86. Amazing car. Does everything I want it to do. Parts are cheap, easy to find, and I don’t care what anyone says—it’s super rewarding to drive. I’ve done a few basic mods: diff ratio, coilovers, discs, pads, seat, etc. It already had a new exhaust manifold and the 180kph limiter removed, so I assume it’s running some kind of map. I’ve just been thrashing it at the track non-stop—mostly Fuji Speedway now, since I need something with higher speed after all that autobahn time. The wheels on the R34 always pissed me off—too big, and it was a nightmare getting tires to fit properly under the arches. So I threw in the towel and bought something that fits better. Looks way cleaner too (at least to me)—less hotboy, less attention-seeking. Still an R34, though. Now for future plans. There are a few things still outstanding with the car. First up, the rear subframe needs an overhaul—that’s priority one. Next, I need to figure out an engine rebuild plan. No timeline yet, but I want to keep it economical—not cutting corners, just not throwing tens of thousands at a mechanic I can barely communicate with. And finally, paint. Plus a bit of tidying up here and there.  
    • Nope, needed to clearance under the bar a little with a heat gun, a 1/2" extension as the "clearancer", and big hammer, I was aware of this from the onset, they fit a 2.0 with this intake no problems, but, the 2.5 is around 15mm taller than a 2.0, so "clearancing" was required  It "just" touched when test fitting, now, I have about 10mm of clearance  You cannot see where it was done, and so far, there's no contact when giving it the beans Happy days
    • It's been a while since I've updated this thread. The last year (and some) has been very hectic. In the second-half of 2024 I took the R34 on a trip through Germany, Italy, France and Switzerland - it was f*cking great. I got a little annoyed with the attention the car was getting around Europe and really didn't drive it that much. I could barely work on the car since I was living in an inner-city apartment (with underground parking). During the trip, the car lost power steering in France - split hose - and I ended up driving around 4,000kms with no power steering.  There were a few Nurburgring trips here and there, but in total the R34 amassed just shy of 7,000kms on European roads. Long story short, I broke up with the reason I was transferred to Europe for and requested to be moved back to Japan. The E90, loved it. It was a sunk cost of around EUR 10,000 and I sold it to a friend for EUR 1,500 just to get rid of it quickly. Trust me, moving countries f*cking sucks and I could not be bothered to be as methodical as I was the first time around.
    • I assume clearances were all a-okay?
    • Shock tower brace is in +5Kw....LOL  
×
×
  • Create New...