TM oil coolers any good?

[hsmidy]

hey guys

looking at getting a couple of oil coolers and spotted these on trademe.

http://www.trademe.co.nz/Browse/Listing ... =591763908

Just wondering if any one has used these or something similar from Tm and if they are any good , or you get what you pay for.

Or if you could reccomend something similar.

[captain crescent]

I wouldn't trust one you hear alot of people that find swarf etc inside them. I looked I to them when I did my cooling setup on my racecar I bought a mocal of palmside to n christchurch can't remeber the price but for reliability vs price its worth it. My 2c

[touge_ae101]

I've had the complete opposite experience. bought a TM one for my car 2-3years ago and it worked awesomely never any problems with it or with engines.

ended up putting a mocal one on the ae82 and it killed and engine and developed a crack within half a dozen race meetings. shitty quality hose ended up forming bulges etc which isn't ideal!

I would definately recommend getting quality fittings and hose though if you can afford it and have a professional fit it.

[92mr2paddy]

yea ive got 2x cheap TM ones one for powersteering cooler and no problems in 3 years in drift car.

[Mr Ree]

As long as you flush out the core a few times, I cant see any problem.

Use the thinnest oil you can find too

If you are really worried, you could use an inline oil filter

[touge_ae101]

As long as you flush out the core a few times, I cant see any problem.

Use the thinnest oil you can find too

If you are really worried, you could use an inline oil filter

thin oil can be bad for bearings i used the same oil with and without cooler- all it means is the temperature is stable.

The engine has an inline filter? Most oil cooler kits use filter block to adapt lines etc so there will be a filter either side of the cooler anyway?? I run mine back through the filter so no worries with crap etc

[XSVWGN]

I'm the same... Bought a trademe 19row cooler and its awesome.

http://www.trademe.co.nz/motors/car-par ... 744045.htm

That's the exact one I have.

Matt

[Mr Ree]

As long as you flush out the core a few times, I cant see any problem.

Use the thinnest oil you can find too

If you are really worried, you could use an inline oil filter

thin oil can be bad for bearings i used the same oil with and without cooler- all it means is the temperature is stable.

The engine has an inline filter? Most oil cooler kits use filter block to adapt lines etc so there will be a filter either side of the cooler anyway?? I run mine back through the filter so no worries with crap etc

Sorry, I should have clarified...

I didnt mean to change the viscosity of the oil that is run in the engine, I meant to use the thinnest oil possible to flush the new oil cooler core, to get rid of potential swarf.

Agreed on the oil filter too, its enough for me and Im fussy.

[sergei]

thin oil can be bad for bearings i used the same oil with and without cooler- all it means is the temperature is stable.

even 0W20 is in same ballpark as 10W40, when it comes to viscosity.

The viscosity is measured in cST.

0W20 has 100'C cST ~ 9.
10W40 has 100'C cST ~ 15.
If you think the almost two fold difference is bad, look what happened when your engine is overcooled.
To put in perspective (which would answer my question from ~5 years ago, that no one answered), the 40'C cST (when the engine is warming up, or overcooled) is following:

0W20 40'C cST ~ 45. that is five fold increase.
10W40 40'C cST ~ 96. that is over six fold increase.

Keep in mind that engines are designed to run cST of around 10 (give a take a few), and definitely not around 100.

So the answer is: No, running too thin oil (providing it is an engine oil) most likely will not run your bearings.

What runs your bearings is oil starvation, if oil is too thick it for oil pump to pump at high RPM. Of course if oil is overheated it will burn and decompose which can also cause bearing failure, hence the need of an oil cooler.
The thinner the oil the easier for pump to circulate. The viscosity does not correlate with lubrication (ie the thicker oil does not lubricate better).

Additionally increasing temperature will not drop viscosity by much. It is not linear correlation (1/x is close curve that can represent it, if the viscosity is on y scale and temperature is on x scale).

For example same 0W20 at 120'C will have viscosity of ~6 cST. at 130'C it will be ~5 cST, and at 140'C it will be just under 5 (4.6).
While the 10W40 @ 120'C ~ 10, @ 130'C ~ 8, @ 140'C ~7.
keep in mind that 10W40 will most likely start breaking down earlier in temperature range than 0W20 because 10W40 will be of mineral base (maybe with some synthetic additive), while 0W20 most likely will be of ester base, which generally is more stable at higher temperatures.

[hsmidy]

Cheers for all the comments guys, I'm tossing up between the one I added the link for and the one that XSVWGN posted.

over double the price .....

[stolic]

Cheers for all the comments guys, I'm tossing up between the one I added the link for and the one that XSVWGN posted.

over double the price .....

They are a bit different in size. 12 row vs 19 row so that will be where some of that price difference is. For what it's worth, I've used a1 radiators a few times and always found their products to be great quality and they will custom stuff to meet your requirements which is awesome.

[hsmidy]

Yeah different number of rows but the overall dimensions arent too different, they are local which is a bit of a bonus if I did have any issues.