oil cooler

[sherwin1983]

Hi,

I am looking at fitting a oil cooler on my little mk1 MR2. Has anyone done this after a guide and what i need or any good places to get parts.

Cheers

Sherwin1983 and Mr T

[SuperRedMR2]

You should already have one, unless you have an AE92 4AGE engine which doesn't come with the pipe for the oil cooler hoses in the sump.

The cooler is bolted to the bulkhead behind the exhaust manifold slightly to the right if you are standing behind the engine bay. Its a brass pipe, painted black and has two pipes coming from it.

It's about a 1-1/4" diameter.

[Charged]

Out of interest.. why?

[sherwin1983]

No my AW11 doesnt have one.

I am going to be useing it on track and want the engine to last and aid with Cooling

[stenky]

ok, it's not oil cooler, but rather a heat exchanger oil-to-water

[PW@Woodsport]

No, that's definitely an oil cooler....



Also coolant temp is 88* + , oil temp is going to be 150*-200* , so the coolant is definitely cooling it.

[stenky]

but since oil warms up more slowly than water, right after the coolant thermostat opens, the water warms the oil up. therefore it doesn't only act as a cooler but also as warmer. so calling it just cooler is inaccurate. it exchanges heat with water both ways so its more a heat exchanger. if you call it cooler (as toyota apparently did) everyone will be looking for a radiator, which this isn't.

[PW@Woodsport]

All "oil coolers" use the cars coolant to take heat away from the oil, they all work like that.

Toyota call it an Oil cooler, that's what it is

[stenky]

Celica AT180's 4AFE uses radiator as a cooler, not a coolant-to-oil exchanger so there are a few exceptions maybe

[PW@Woodsport]

It is what Toyota say it is

[stenky]

NO, toyota doesn't know sh*t! I am being right here so let me enjoy it for a while. This doesn't happen to me often

[Lauren]

Best option is to nick the oil cooler off another car.

I agree with Paul it is an oil cooler. In fact equalising the temperature to the coolant is no bad thing.

[MartG]

With the Mk1 an oil/water cooler is really the only option - nowhere in the engine compartment to fit an oil/air cooler where it will get sufficient airflow to work without overheating something else, and running oil cooler pipes all the way to the front of the car would be a non-starter ( size of sump needed for the extra oil volume would be huge for example ) - hence that's why Toyota used the oil/water type

[stenky]

i would plant it behind the side engine vent and attach a powerful slim fan to aid airflow at low speeds

[MartG]

i would plant it behind the side engine vent and attach a powerful slim fan to aid airflow at low speeds

Blowing hot air into the engine compartment isn't going to help the temperature in there

[stenky]

heating up the coolant after it has been cooled is the same thing. this is my thinking. stock cooler introduces the heat to the engine directly, whereas radiator type would blow hot air and heat the engine up indirectly?

[PW@Woodsport]

This thread has a lot of hot air

[stenky]

you are rude guys. you don't let me act smart