Outer Limits 4x4 Board

Just been looking in the engine bay... I cant see the oil filter on the feroza?

And also, does the feroza have an oil-cooler or not? There are two types of filters at SCA, one for a feroza with an oil cooler, one without.

If anyone could give me an idea, or even an engine bay pic, it would be much appreciated as i would like to change oil and filter tomorrow.

From the front of the roza its at the front, bottom, right of the engine in front of the engine mount.

as for the cooler - depends what country your in...

if you do have one fitted its spaced between the block and the filter with
one water line going back to the block ( under the exhaust manifold )
and the other running forward to the bottom radiator tank.

Its the same as an Applase unit so if you don't have one and you
really want one then get an appluase one from the wrecker. just
remember you will need to have an extra pipe solderdered into the bottom tank.

Early Ferozas didn't have the cooler - post May '92 might be the changover date because there was an upgrade then and my Apr '92 doesn't have the cooler?

I wouldn't bother with one personally because they use the hot coolant to cool the oil!? Not much benefit IMHO; if you want an oil cooler do it properly and get an external air cooled one that's mounted behind the grille (and make sure you fit a thermostat or else it will never warm up!)

True. Thanks for the info, guys. I'm going to change oil/filter tomorrow, and there are two feroza filters at super cheap auto. One for the feroza with an oil cooler, and one without. just making sure i get the right one

Z386 fits non oil cooler. I just bought one of Purolator "Pure One" filters for mine and used it on the weekend. They sound good (silicone rubber valve and finer filtration) and were on special at the time.

murcod wrote:Early Ferozas didn't have the cooler - post May '92 might be the changover date because there was an upgrade then and my Apr '92 doesn't have the cooler?

I wouldn't bother with one personally because they use the hot coolant to cool the oil!? Not much benefit IMHO; if you want an oil cooler do it properly and get an external air cooled one that's mounted behind the grille (and make sure you fit a thermostat or else it will never warm up!)

I also noticed that cars with oil coolers usually are auto...not manual.. my is a 93 and doesn't have oil cooler in it.

Whilst a seperate oil cooler is the best option ( when its done properly - and it very rarely is ) its possible to overcool the oil if the cooler is too large.

So even an external cooler is a compromise - too big and it works well if things get really hot but can overcool normally, and too small - no problem normally but doesn't help much things get critical.

So even they are a compromise. Large OE units ( early Mazda ) actually have a thermostat inside the cooler oil entry to control the capacity.

Ths is where the water unit actually wins out big time - because the cooling system has a thermostat - the oil temperature is actually regulated. So assuming the water system is OK then they have definate
beneifits.

Seperate oil coolers also slow down the engine warm up because they are not temperature controlled. Once again OE's try to avoid this as it causes
emission problems for them - this explains the frequent fitting of oil/qwater
coolers to so many cars.

As most aftermarket coolers get mounted in front of the radiator anyway they still end up affecting the water cooling system to a degree. With small cars there often arn't that many spots available.

So whaterver floats your boat for oil coolers... but a second hand oil/water
unit for 10 bucks and some radiator mods does make a lot of difference.

Let the debate begin.....

my 90 us feroza has an oil cooler. just throwin that in there.

SimplyPV wrote:my 90 us feroza has an oil cooler. just throwin that in there.

Can you post a picture of oil cooler?

MightyMouse wrote:
Let the debate begin.....

seconded. even my aw11's come with stock w2o coolers.

nebivedu wrote:Can you post a picture of oil cooler?

i can get a pic tomorow if you like.

Its also shown in the F300 manual ( can download from WARFS.ORG ) but what isn't shown ANYWHERE is that there is a water line running to the bottom tank of the radiator. ( Actually I can't verify where it goes on a roza - but on the Appluase that's the case ).

If you get a second hand one, there's a steel line running from a tapping in the block that you should grap, along with the banjo bolt and copper washers. Unfortunately you need to have a fitting added to the lower radiator tank to complete the circuit - so it will have to come out and be soldered in.

And as the Appluase uses the same HDE engine the cooler is EXACTLY the same - so its a very cheap option if you can get one for low bucks.

If you go to a "do it yourself" wrecker be warned the large "tube nut" in the centre of the cooler requires a large ring spanner or socket ( can't) remember exactly but 24mm ??? )

correct, you need a 24mm deep socket to remove the oil cooler.

Mmm. Well boys, I've got an oil cooler

Installed the right filter and off she goes.

MightyMouse wrote:
Let the debate begin.....

The factory cooler set up will also help warm your oil up quicker on cold mornings. (Your coolant warms up a lot quicker than your oil.) But your coolant will also be sitting at 80 degrees C+ , once up to operating temp, so it's not really the best medium for "cooling" your oil.

Personally I think an oil cooler is overkill for a standard Feroza engine- that's my input to the debate!

Whats wrong with water to cool the oil ?

Not talking about the general oil vs water cooler debate - rather your specific comment ?

As for overkill - i tend to agree on a stock engine, but when modified and without extra front space - its worth the effort.

MightyMouse wrote:Whats wrong with water to cool the oil ?

It's already sitting at 80 degrees plus- so the temp difference isn't all that great for it to be cooling your oil.

My ideal cooler would be the factory cooler but with it's own separate coolant supply, pump and mini radiator up the front...... Similar to a water to air intercooler..... It would be more efficient than the engine coolant and you wouldn't have the risk of losing oil through offroad damage like a normal front mount oil cooler, you'd just lose the coolant - no big deal.

But I don't need one.

FYI - peak oil temps can be significantly over 100C when under load and can persist for a significant period. This is enough to affect the viscosity of the oil and limit its ability to control the temperature of oil cooler/lubricated parts such as valve gear etc.

But for a stock vehicle its a "nice to have" not essential.

Yes, I'm aware of what oil temps can do, I've owned a few modified turbo engined cars in my time. I fitted an oil temp gauge to one of them and it was going over 130 degrees around a racetrack. I then fitted a front mount oil cooler etc. etc.

But standard Ferozas aren't turbo charged and don't see race tracks. Use decent oil and you won't have to worry

You're in a totally different situation to 99% of people on here and are building a custom forced induction HD-E engine- so you'd be silly not to run an oil cooler.