pros nd cons of runing a oil cooler on a 4age?

[touge_ae101]

i dont run one on the rally car, but been seriously thinking about it lately.. i dont have an oil temp gauge. If i did id probably be worrying more Wheres the best place to get all the bits i would need, filter adaptors etc?

there are some alright looking kits on trademe from cheap chinese and the likes. come with all hose and fittings etc but as always have to beware of cheap shit.
but when you compare $200 for one of these kits to approx $800+ for sourcing Earls fittings and braided line, it kind of makes it look rather attractive.
or alternatively you can pick up some nice greddy kits on yahoo japan for not too much money.

i can normally tell when the oil is getting hot from keeping an eye on the oil pressure gauge... less pressure=oil is hot. if it gets below 60psi at full revs that when i know it is breaking down a bit too much.

[touge_ae101]

wouldn't oil grades make a noticeable difference?
though i cant see how modding up a aw11 cooler would be too hard

yes it makes a big difference. this has been discussed before but the last number in the oil rating tells you the heat it is rated to before it starts breaking down.
i was running 10w40 but was burning heaps of oil and suffering lower than normal oil pressure when giving it crap so i changed to 15w60 penrite oil and it has made heaps of difference. it is a lot more stable over the range of temperatures it sees even when at the track it still holds normal oil pressure. showing it handles the heat a lot better as the hotter it gets, the thinner oil gets until it is next to useless for lubricating your engine.

[Bazda]

I find Puke sees lower oil temps over taupo. The engine has to work harder at taupo as your constantly accelerating.

[1I1]

Also more air flow from higher speeds through the oil cooler would help keep temp down?

[screamin']

i dont run one on the rally car, but been seriously thinking about it lately.. i dont have an oil temp gauge. If i did id probably be worrying more Wheres the best place to get all the bits i would need, filter adaptors etc?

I've just fitted one to my rallycar for a bit of insurance before doing the Targa. She was getting a bit warm at Hampton Downs and some of the longer rallysprints recently and the Link was pulling the rev limit back -can't have that!
I fitted a kit from KW in Auckland for around $300. All the fittings, coller etc have fitted up good, no leaks or pressure issues from road testing, yet to race it tho.

[RomanV]

What do you lot think about the factory water cooled oil cooler type things?

[sergei]

What do you lot think about the factory water cooled oil cooler type things?

They are great for cold climates, and tend to give more consistent oil temperatures.

My question is: why in NZ you really have to run thermostat on oil cooler. I would understand if say ambient was below 0 and oil would thicken too much. Although engines are partially oil cooled, there is only benefit in running oil slightly colder while engine is fully warmed up. I run oil cooler without thermostat on ST165, and I am yet to see negative side of that.

[Mr Ree]

I think the main reasons for ideally installing a thermostat in the oil system is to

A) allow the oil to get up to operating temp so it can do its job of protecting your engine more quickly

B) Because you want to keep your water temp and your oil temp reasonably close to each other.

So if you are driving around on the street and your water is sitting somewhere between 85 and 95, but your oil is down around 45 or 50 deg due to being overcooled, you can see the huge temperature differential being created. There is alot of good articles to read about ideal oil operating temps, Ill try and have a hunt for a couple of good ones I saved a while back.

If you cant afford a thermostat, then a really cheap way of stopping the oil overcooling is to cut a piece of corflute to the size of your oil coolers face and cable tie the corflute to it. If you know you are going to need extra cooling then simply slide it up to expose the required amount of surface area.

[sark.inc]

this has been discussed before but the last number in the oil rating tells you the heat it is rated to before it starts breaking down.

10w refers to it's viscosity at -18c and the number after (e.g 40) refers to it at 100c

Not weather it breaks down or not, that comes down to oil quality.

[Mr Ree]

For anyone who wants to learn more about oil viscosity, and to truly understand how it all works...

Please visit www.bobistheoilguy.com and read the entire 10 pages of "oil 101", then do the exam to see that you have retained the knowledge.

I bet a few of you will be going out and buying different oils straight after reading it but its valuable knowledge you will appreciate .

[sark.inc]

For anyone who wants to learn more about oil viscosity, and to truly understand how it all works...

Please visit www.bobistheoilguy.com and read the entire 10 pages of "oil 101", then do the exam to see that you have retained the knowledge.

I bet a few of you will be going out and buying different oils straight after reading it but its valuable knowledge you will appreciate .

The way he harps on about flow being the best protection strikes me as odd..

No amount of oil flow is going to stop a conrod bearing pushing oil out of the way and eating crank.