guys, when I went to japfest the other week, we had just been sat at motorway speeds then straight in to stationary trafic queing to get in to combe! when we were sat in the traffic the oil temps started to clime... basicaly I see about 65c on the gauge when we are cruising along, but while queing it went up to about 85 - 90c and obviously the oil pressure droped with the thinning oil! So at this point I thought about putting small motorbike cooling fans behind the oil coolers ready for such instances in the future!
Has any one done this & is it worth while doing??
Cheers
Jono
mine does this too, isn\'t it normal? Too cool and you get inefficient burn dont you? interesting!
I was just thinking of doing it to keep my oil pressure up when the car is stationery in traffic! the oil coolers have a thermostat in them too, so the oil shouldn\'t drop too low in temp! just thought it would be a nice idea for piece of mine!
Jono
Isn\'t the oil pump a mechanical pump ? You will see less pressure in traffic because the revs are much lower. Would have thought that wasn\'t too crazy a temp.
The water pump is exactly the same thing as the revs drop the l/min does too.
Shaun
95o isn\'t an overly high oil temp - I think the number is 120o where even the more expensive oils start to degrade. Been many years since I got there, but I am running a major cooler for an FB.
Also bear in mind your guage might not be true. I found recently that when I was roaming around the MOTEC feeds the true engine temp was around 10o lower than the guage was reading. Depends where you\'re picking the temp feed up from in it\'s cycle, calibration of the guage etc etc.
S.
Not too worried about the oil temp to be honest, it\'s just the side affect of lower oil pressure with thinner oil due to the heat! I\'m taking the temp reading from the oil filter plate, so I know the temp is a little cooler there than the rest of the system!
Jono
Most of the after market ones pick up at the oil filter in a pedestal.
Shaun
Quote from: Jono FD3;612263Not too worried about the oil temp to be honest, it\'s just the side affect of lower oil pressure with thinner oil due to the heat! I\'m taking the temp reading from the oil filter plate, so I know the temp is a little cooler there than the rest of the system!
Jono
Wouldn\'t it be hotter there beacause its just about to pass through the coolers ?or does it flow the over way :2Confused
are you still using the stock radiator for the coolant side of things aswell though?
because if your water cooling is very inefficient that will obviously directly affect the oil cooling efficiency aswell.
What about wraping your oil lines with heatwrap too? that could help eliminate heat soak :wiggle
Heat soak isn\'t a problem with my setup matey!! My water temps didn\'t cross 80c sat in the traffic for 30 mins! only ever heard the fans kick in once since I have done the V-mount and that was sat on the rams at MOT time!
Jono
jono did you get anywhere with the oil cooler fan mod? i was sat in a lot of traffic today with the oil temps reading 95, seemed a higher than i\'d like. water temps were 88 but was a really hot day. thats with a vmount!
LOL... I haven\'t done anything with it as yet matey... got a list as long as your arm of things I want to do!!
But thanks for the reminder... I\'m going to look in to it now ;)
Jono
Hmmmmm. The warning function on my oil system doesn\'t even come on till 110 degrees. I wouldn\'t have thought 90s were too much to worry about? In fact, sticking fans in the narrow ducting might actually decrease the general efficiency of the coolers for all the time the fans aren\'t working?
Very true nick, but you would only need to put a fan on one of the coolers ;) so in affect at worst you would have 1 and a half oil coolers operating (early FD\'s only had a single cooler & coped fine in the UK climate while driving) and when stuck in traffic you can flick a switch and again have the affect of driving at 20mph (ish) keeping the temps at a cool level!
Jono
you will see a lower oil pressure when the oil is warm due to the stock thermal pellet opening
colum
i was thinking i might mount a fan somewhere down that way on one side (but not stuck right up on the cooler) to generally increase air circulation at standstill, since theres a bit of room with my setup, might reduce heatsoak. Should be able to tell if its doing any good when i get round to installing the faster temp sensor thingie.
had a bit of an experiment today, took out the bumper indicator (wasn\'t plugged in anyway) and made a grille, then stuck a fan in utilising a quick alu bracket and the existing front splitter bolts - and made some ducting channelling the air out the grille. I wired it via a fuse to a spare switch on the centre console, it works whether the ignition is on or off. It was a spare switch normally used for the fog lights. I do intend to put a timer circuit or maybe thermostat circuit in there someday. It blows a fair gale out the side, but havent been for a drive to see if it makes any difference to oil temps in traffic yet.
the fan is a 12v waterproof fan, low amps and good flow.
(http://www.derminfo.co.uk/misc/DSC_1170_resize.JPG)
(http://www.derminfo.co.uk/misc/DSC_1171_resize.JPG)
(http://www.derminfo.co.uk/misc/DSC_1172_resize.JPG)
Well I managed to score myself a brand new slime line elecy fan from an aprilia motorcycle (one of the super bike ones not a 125!) cost me 20 notes deliverd! hope to have it on Tuesday, then it\'s just to fit it to the drivers cooler & away we go!
Shall report my findings as soon as I test it (which wont be long!) also show a step by step in my project post!
Jono
having run mine for the last week or so, i am quite pleased - just with one fan blowing out the side port, it manages to drop the oil temps by 10 degrees when i switch it on whilst cruising, when booting it it seems to drop it by about 5 degrees or so.
Where is your fan mounted Ash?? Is it the inside of the bumper by the mesh, or on to the oil cooler itself?
Jono
it stands about 5cm from the side of the bumper, sucking air across the back of the cooler, and ducted up to the mesh i made where the light was. I\'ve replaced the light unit on the other side with mesh too, but havent put a fan in yet.
what did you use for the mesh matey as it looks alot better than those horid amber jobs!!
i made a quick mold of the original light in wood, and bent the mesh over it using a rubber hammer. If you leave a tab a couple of inches wide and perhaps three inches long on each long edge, you can fold it round the inside of the bumper (if you get what i mean!) and it stays there solidly without any other attachments. I expect youre well capable of making a mold but i could send you mine if you want?
Black Epoxy Steel Woven Wire Mesh A4 Sheet - Coarse 4 sheets 4.99 delivered
from an ebay seller "mesh-company" //www.themeshcompany.com
Awsome matey... cheers for the info ;) no worries about the mould :) Like you said LOL
Jono
how about something like these:
radicalrc.com ducted fans (http://www.radicalrc.com/shop/?cart=3033499&cat=119&)
eBay (http://cgi.ebay.co.uk/GWS-Electric-Ducted-Fan-EDF40H-Six-Blades_W0QQitemZ120423265033QQcmdZViewItemQQptZUK_ToysGames_RadioControlled_JN?hash=item1c09c93309&_trksid=p3286.c0.m14)
i was thinking of building a shroud to go on the rear of my intercooler and sticking two or three of these on to suck air through.
think you would be better off with motorbike cooling fans as they are totaly weather proof!!
Jono
my fan is supposed to be wterproof, but i don\'t reckon the flow would be as good as a bike fan - can you post up some pics of your project jono?
ash
will do matey!! hopeing to get this sorted the weekend all going well!! lots of pics & text will be posted somwhere ;)
Well, not quite as straight forward as I was hopeing and I still have to wire it up (hopefuly today!)
Anyway, here are some pics of what I used & how I fitted it!
The fan is a cooling fan of an aprilia superbike (not sure what one!) Basicaly I took a gamble on the size & for once I blagged it!! Here\'s a pic of the fan:
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo1000.jpg)
Next was to make the mounting brackets..... I opted for a through cooler mounting system. all you need is a few cable ties Spongey foam & some plastic!
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo1005.jpg)
Now you need to cut the zippy bits off a few ties to make the securing bits:
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo1007.jpg)
Now you need to strip the inner arch back so you can see the cooler (on which ever size ou want) I opted for the driverside on mine, so I had to unmount the header tank for the coolant system!
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo1008.jpg)
I also had to unbolt the lower mount for the oil cooler & take it out to allow me enough space to get the fan in!!
Now you need to feed the cable ties through the cooler fins (spongey bit between the fan & cooler on each mount point)
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo1009.jpg)
Now put the secureing zippy bits on the outer side/ (again foamy bit, then plastic, then zippy bit)
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo1010.jpg)
Pull them tight:
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo1011.jpg)
Now cut the excess off:
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo1012.jpg)
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo1014.jpg)
Hay presto, fan mounted... now wire it up & rebuild the inner wing ;)
Jono
great job as always Jono.
Where did you get the fans from and how much? Instaed of using the plastic tie ups i would use very small bolts using same method. The fan bound to move and with flex/ rubbing + heat it will move the plastic tie up or may even break. just my 2p :)
The bigger issue may be fatigue on the braze joints from the twisting motion of the fan. I destroyed an aluminium rad with a 16in fan !
Shaun
Shall keep you posted on howit holds up ;) also doctord a switch to go in to the centre console between the fog & heated windoew... jus got to wire it all up & we\'re laughing!
J
ashc - the fan you used for your setup looks very much like a PC Chassis type fan, is this the case? Looks like an interesting and fairly simple (and also cheap) mod to perform. Are you still pleased with the results after testing?
I haven\'t tested mine matey, but fan cost 20 deliverd.... bit more than I wanted to spend realy, but not stupid money!!
Jono
jus a quick look at this vid shows you that its worth doin if the re-a boys are doing it :Giggle
its at 3:20 in the vid
http://www.youtube.com/watch?v=B5sq4D3khZE&feature=related
OMG I think Like Mr RE:A!!! Haha! How shockingly small is that garage?! would have thought the size of the company would have a massive place! or would that be an RE:A outlet?
jono
Don\'t take this the wrong way - kudos for trying something new, but looking at those oil coolers - the bent fins aren\'t going to be helping, I would have used a pair of tweezers to straighten them out, get air flowing through the cooler before adding a fan.
Quote from: Daz Nuke;638649ashc - the fan you used for your setup looks very much like a PC Chassis type fan, is this the case? Looks like an interesting and fairly simple (and also cheap) mod to perform. Are you still pleased with the results after testing?
it looks a bit like a pc fan, but it is fully waterproof and industrially-rated, but probably not as tough as jonos bike fan.
stills seems to be helpful, certainly drops the oil temps by a average of 5 degrees when i switch it on. I also left it on all night a week or so ago, forgot to turn it off - and didn\'t seem to drain the batt at all.
good point about the bent fins, i spent ages with a stanley knife blade straightening them as best as i could!
Quote from: ashc;639656good point about the bent fins, i spent ages with a stanley knife blade straightening them as best as i could!
I feel your pain - its such a tedious job - I\'ve yet to do my oil coolers, recently had to do a radiator. On the plus side I now have a set of little tools perfect for the job.
yea, going to be doing that as soon ast the weather is half decent!! also going to wire the thing up too LOL
Jono
i used a spare foglight switch to replace one of the blanks in the centre console, didn\'t bother with a relay just direct 12v off the battery via a 3amp fuse (lowest i could find spare!)
I\'ve done my usual thing ;) I had a spair fog switch from another FD & doctord the face of it! It now has a symbol of a fan and sits between the fog light switch & the rear demister ;)
Just got to run the wires!!
Here is the switch I doctord for the cooler fan:
One std switch that I have sanded the black off where the logo graphic would be:
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo1018.jpg)
And here it is with the new graphic attached and installed in the console:
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo1031.jpg)
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo1034.jpg)
Jono
very good!!! lol, sure its not the super-turbo-launch switch?
na... that\'s my amphibious vehicle button ;) drops the prop out from behind the diff! Hehe
Sorry to bring an old thread back, but just thought I\'d report my findings from this mod!!
Awesome.... Totaly worth doing! why mazda didn\'t do it from factory & have not got a clue!! Basicaly I fired mine up the other day & left it idle in the drive (as it\'s parked in by the old mans 24 foot boat :( ) and let everything come up to temp. anyway, I came back to it & saw the oil temp was creeping over the 80c (at the filter housing) so I thought.... don\'t realy want it to be that high & then I rememberd about the mod LOL!! flicked the switch and within 3 mins the oil temp was down to 65c & oil pressur came up.....
If you haven\'t done this mod, it\'s worth thinking about doing it... specialy the drift boys when your high RPM with little air flow!
Jono