Oil Cooler, Oil Temps

[Tony de Wonderful]

I wouldn't use a thermostat....just another thing to fark up, plus when it open it dumps freezing oil into a hot engine....good if you want to quench your internals mind lol.

[Piggaz]

So you would rather under temp oil most of the time? May aswell take your coolant thermostat out aswell, dont want that cool water hurting anything!

[abr33]

I wouldn't use a thermostat....just another thing to fark up, plus when it open it dumps freezing oil into a hot engine....good if you want to quench your internals mind lol.

It doesnt just go BANG OPEN at 75 degrees. it eases open to regulate the returning oil to the set temp level. just like your water one...

[Tony de Wonderful]

It doesnt just go BANG OPEN at 75 degrees. it eases open to regulate the returning oil to the set temp level. just like your water one...

So it's 'smart' now is it?

[Tony de Wonderful]

So you would rather under temp oil most of the time? May aswell take your coolant thermostat out aswell, dont want that cool water hurting anything!

It only takes a min to wrap a cover over the oil cooler. The coolant thermostat is only used when you cold start BTW.

[Piggaz]

It only takes a min to wrap a cover over the oil cooler. The coolant thermostat is only used when you cold start BTW.

So before you leave the house you have to think about where you're going? Freeway driving you bust out with a blanket and duct tape... But then you find some nice twisty road so you untape the blanket so your cooler works. That's bloody rediculous man.

What if your cooler is in a hard to get to location? *faceplam*

[JustinP]

LOL!

So before you leave the house you have to think about where you're going? Freeway driving you bust out with a blanket and duct tape... But then you find some nice twisty road so you untape the blanket so your cooler works. That's bloody rediculous man.

What if your cooler is in a hard to get to location? *faceplam*

[discopotato03]

Oil cooler thermostats have a shuttle valve that opens one port gradually whilst closing another . They are designed to fail safe and not starve the engine of oil . The oil is stored in the sump so you couldn't dump freezing oil into the engine regardless . Generally cars that have OE oil coolers and thermostats set them to around 100C but they begin to open closer to 90 . Manufacturers do these things for good reasons its not just a guess .

Can you imagine a situation where some overkiller decided to run a huge oil cooler with no thermostat and a heavy weight oil because they think thick is good .

The whole reason to have an OE style oil cooler system is so you can run oil that works properly in normal driving conditions but not have excessive heat kill it when the engines worked hard for any length of time .

These days manufacturers are specifying lighter oils to reduce drag in engines with close tolerances - emissions fuel consumption etc .

These engines don't really like higher viscosity oils if they don't get them hot enough to flow easily .

The answer in a high performance or turbo engine is to add a thermostatically controlled oil cooler to prevent the oil getting too hot and too thin to protect the engines bearings etc .

Or the cheap way is to have an oil to cooling water heat exchanger like RB turbo engines do and have a reasonably high capacity radiator .

One last thing , real good oils cost big bux and when you run them too cool they absorb more gunk that can only be removed by draining it out the sump plug hole . This is going to cost a fortune for no positive gain - anywhere .

High capacity radiators and oil coolers are good things but only if they keep the fluids in their correct temperature ranges ie neither to cool or too hot .

A .

[dori34]

So it's 'smart' now is it?

ever tested a thermostat before mate?

i'm guessing you haven't, as you will see that it slowly opens up.

so yes, in a way it is "smart", it does not open fully right away.

what a smart cookie you are

[Jap_star]

I use a greddy oil cooler and relocator with in built thermostat on my r33. Oil sits on 75 everyday. Gets to 80ish in the hills. And around 100 on track

[gotRICE?]

As far as i was aware, thermostat sandwich plates and inline thermostats have a 10% flow to the oil cooler when they are shut anyway.

Mocal ones do thats for sure. Or the oil would never move in the core and just sit and go yuck if you didnt track the car or do any sustained heavy driving.

[Moodles2]

I run a Earl's inline thermostat and it is always open 10% when cold

[kitto]

I run a Earl's inline thermostat and it is always open 10% when cold

+1

[abr33]

So it's 'smart' now is it?

Compared to some people thermostats are f**king genius.

[Tony de Wonderful]

I'm just saying the thermostat is one more thing to fark up, if only for it being an extra (heavy) thing hanging off the block, and an extra sealing surface, and if you want a sandwich plate for sensors that is another one, then you would have to relocate the filter...more lines, more stuff to leak/burst.

So I have one SINGLE sandwich plate which gives me AN-10 off takes for the cooler and two ports for sensors.

It keeps it simple.

...and my cooler is located in the grill and is easily accessible. If I want to cover it, it would take minutes.

Ok so my car will not instantly be optimal for street driving on one hand and track on the other, but who's car really is? Unless it is some sort of transformer car and the street tyres tuck up and slicks come out, and the fluids change themselves, and a helmet goes on your head like Inspector gadget LOL?

[kitto]

I'm just saying the thermostat is one more thing to fark up, if only for it being an extra (heavy) thing hanging off the block, and an extra sealing surface, and if you want a sandwich plate for sensors that is another one, then you would have to relocate the filter...more lines, more stuff to leak/burst.

So I have one SINGLE sandwich plate which gives me AN-10 off takes for the cooler and two ports for sensors.

It keeps it simple.

...and my cooler is located in the grill and is easily accessible. If I want to cover it, it would take minutes.

Ok so my car will not instantly be optimal for street driving on one hand and track on the other, but who's car really is? Unless it is some sort of transformer car and the street tyres tuck up and slicks come out, and the fluids change themselves, and a helmet goes on your head like Inspector gadget LOL?

You live in the UK, you should be the first person on here to be running a thermostat for your oil cooler!

If the thermostat fails it just means that it will be stuck open or closed. Oil temps would indicate this and you would investigate.

[Dose Pipe Sutututu]

Just buy an inline thermostat from B&M or Permacool if you don't want to replace your plate.

[Tony de Wonderful]

I got an inline mocal one on order.

If it breaks my engine I'll blame you lot.

[Piggaz]

How often does a thermostat fail? Even if it does, change it. Its not like you cant tell if its stuck open or wont open (providing you have a temp gauge). It's better than having oil that's too cool 95% of the time.

[gotRICE?]

Well how often do water thermostats fail? They probly have a similar lifespan, but being the oil thermostat is a complete unit inside a housing they arent as cheap to replace as a conventional water thermostat.

I think the Mocal Sandwich plate thermostats are around $135 or so. And youd more than likely want to replace the washers for the fittings on the plate too.

I run a Mocal plate on my car, non thermostat, but i only have a small 13 row cooler infront of the Radiator. I dont have any issues, but then again i dont have a oil temp gauge so i guess my point is invalid. lol.

Im seriously considering one of those Earls ones linked earlier. They look the bizz. And the fact they have provisions for sensors is a win. The Mocal ones do not.

If the oil thermostat fais my thoughts would be seeing as its probly closed 75% of its life, it will fail closed, so no harm done. And you will figure it out next track session when the oil temps go higher than normal.