Guinness
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| posted on 23/4/09 at 11:41 AM |
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Oil Cooling
Over the winter I decided to make / fit an ally shroud between the nosecone and the radiator to duct the air through the rad, rather than around it.
It worked brilliantly, reducing water temperature. However I now have another problem, my oil temp was too high on the recent trackday.
The oil cooler is in the middle of the engine bay, and I think now only getting pre-heated air, or worse, no air flow at all! I have loads of space
between the water radiator and the oil cooler.
I am looking for a locost solution, hopefully without buying loads of new parts!
I think I have 3 options.
A) Remove front number plate, drill holes in bottom of nose cone, duct air from front of car direct onto face of cooler.
ii) Turn oil cooler vertically through 90 degrees and fit in the gap between the chassis and the bodywork, behind the front wishbones (anyone who has
a BEC Indy will know where I mean).
3) Turn the oil cooler upside down, so the inlet / outlet is on the bottom, rather than the top, raise it up (much) higher than the sump, fit a scoop
in the top of the nose cone.
Anyone want to call round and have a look / make suggestions / help are more than welcome.
Cheers Mike
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tomgregory2000
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| posted on 23/4/09 at 11:48 AM |
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I think no3 will cause an airlock, ducting air to the cooler would be the best
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02GF74
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| posted on 23/4/09 at 11:59 AM |
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if possible, fit behind or better in front of radiator, as close as possible for best airflow.
also don't mount it to high above the oil pump.
you can get coolers in different shapes to fit in the space you have available but think how you will route the hoses.
some info. see thinkauto.com.
Installing an oil cooler
In the case of the air to oil cooler, The oil cooler will only achieve re -
sults where a vol ume of air is pass ing through the fins. The amount
of heat dis si pated by ra di a tion is neg li gi ble. In prac tice the most
con ve nient po si tion for the oil cooler is in front of the wa ter ra di a tor
where a flow of air is guar an teed. Even in cases where the wa ter
cool ing is mar ginal, plac ing the cooler in this po si tion will have
hardly any ef fect on wa ter tem per a ture. The sheer vol ume of air
pass ing through the cooler en sures that the air is only heated a few
de grees; not enough to af fect the wa ter ra di a tor per for mance, and
as the oil cooler is a more ef fi cient de vice for ex tract ing heat from the
en gine, the over all ef fect is help ful. How ever, where wa ter cool ing is
mar ginal it is es sen tial that the oil cooler be placed against the wa ter
ra di a tor face, oth er wise warmer air leav ing the oil cooler will be -
come tur bu lent on meet ing air at am bi ent tem per a tures and will not
pass through the wa ter ra di a tor. If plac ing of cooler and wa ter ra di a -
tor in close prox im ity is not pos si ble then a duct of thin alu minium
should be made to ex clude the am bi ent air. If space is not avail able
in front of the wa ter ra di a tor due to an elec tri cal fan for in stance, the
cooler may be mounted be hind the ra di a tor and will still work well for
the rea sons al ready given.
In the un likely event of an in suf fi cient space be ing avail able ei ther
be hind or in front of the wa ter ra di a tor, the ra di a tor grille may be
moved for ward by us ing lon ger screws and spac ers. Al ter na tively
oil cooler size holes may be cut in the for ward bulk head ei ther side
of the wa ter ra di a tor and air from the grille duct ed to the cooler. An il -
lus tra tion is given of the ways in which the cooler may be mounted
us ing our stan dard uni ver sal brack ets.
Mount ing on bot tom brack ets alone will suf fice up to 13 row cool ers
af ter that all 4 brack ets should be used, a sys tem of spac ers and
long bolts ty ing in all four brack ets will spread the load. The cooler
will ex pand with heat so al low ing someflexibility in the mount ings
will pro long cooler life The weak est part of the plate type cooler is
the brack ets, break age of which of ten dam age the whole cooler. if
fit ted to any ve hi cle that may be sub ject to vi bra tion or twist ing of the
mount ing plat form, con sid er ation should be given to aban don ing
the brack ets and mount ing in a cra dle, lo cat ing with ca ble ties or an
elas tic strap should be suf fi cient as the hose will pro vide some re -
straint. Oil cool ers may be mounted any way up and are self bleed -
ing, the re sis tance to oil flow through the ma trix means that tanks
will fill up evenly push ing out the air be fore the oil flows through.
[Edited on 23/4/09 by 02GF74]
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BenB
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| posted on 23/4/09 at 12:19 PM |
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I'd try installing it in front of the radiator......
Or make a seperate duct to give the oil cooler it's own air supply....
Or fit an oil / water heat exchange unit like on my ST engine....
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coozer
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| posted on 23/4/09 at 12:25 PM |
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u2u me your address Mike, any excuse to get out atm!
Steve
1972 V8 Jago
1980 Z750
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britishtrident
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| posted on 23/4/09 at 12:27 PM |
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Front of the water rad is the way major manufacturers do it --- because oil has a much lower specific heat capacity than water/coolant it has
almost no effect on coolant temp.
The other way round water rad in front of oil rad is not good.
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AndyGT
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| posted on 23/4/09 at 01:16 PM |
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I like the "locost" idea of drilling large holes into the area behind the no plate accompanied with airducting. Either that or why not
put ducting to deflect the hot air from water radiator away from oil cooler and let it cool oil as it did before you started adding ducting?.
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bimbleuk
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| posted on 24/4/09 at 09:23 AM |
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Have you thought about an oil/water cooler? Can be sourced from the scrappy and is quite a neat setup on my car. Only issue is you have a BEC
don't you? I've no experience with these.
 
Ford oil water cooler mounted
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