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M35 Oil Cooler Adventure

Mr 20Valve

By Mr 20Valve,
in Four Door Family & Wagoneers

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Mr 20Valve Rising Star

Mr 20Valve

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Have you had a chance to measure temps yet Hayden?

Considering doing this and trying to work out if the size you've picked is big enough, and if it's not where to fit something bigger :unsure:

I'm halfway through fitting up the temp gauge, so I should have some info soon (finding time is the problem unfortunately)

Mr 20Valve Rising Star

Mr 20Valve

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One temperature variation I have noticed is the outside ambient temperature display in the dash...

After the car's been driven & parked for a short time, the outside temperature shows high 30's or low 40's thanks to the temp sensor sitting directly above the oil cooler core. :O

I'll get around to relocating it one day.

scotty nm35 Grand Master

scotty nm35

Posted
Posted

My oil sits around 87-90 degrees, and the water 76-80 on the freeway with the Nismo thermostat. That is with a 30 row 12an oil cooler. I guess the Greddy oil thermostat is set a little high. I wonder if the water-oil cooler is affecting it's operation...

I have still seen 118 degree oil temps at PI, even though the oil cooler has a 14 inch thermo running flat out. You can never have enough cooling at the track as I found out.

ECR33_RB25DET Community Regular

ECR33_RB25DET

Posted
Posted

Great story. Was quite entertained!

Hows it go; Greedy pays twice!

AND

You get what you pay for!

Made in YumCha not so good, not so love you long time....lol...

Well done on sorting it all out in the end.

Commsman Veteran

Commsman

Posted
Posted (edited)

Have you had a chance to measure temps yet Hayden?

Considering doing this and trying to work out if the size you've picked is big enough, and if it's not where to fit something bigger :unsure:

Years ago I was told that cooling the oil is more efficient than a radiator at keeping an engine from cooking. I never believed it till I put one on a V8 with chronic overheating issues. The core was approx 200 x 300mm (sold by a truck spare parts place to "cool a Mack" - I lol'd at him). So put it in & it instantly fixed my overheating problem. In fact I reckon I could've run without coolant, except I wanted the heater to work. Had to block the airflow (to the cooler) in winter so the engine had a chance to get to operating temp.

The one Hayden chose looks plenty big enough to me.

Edit: to clarify, mine didn't have a thermostat. That would've been a better idea, but meh, cardboard worked ok.

Edited by Commsman
bigkevracer Grand Master

bigkevracer

Posted
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Cheers Hayden. Be good to see how it goes.

My oil sits around 87-90 degrees, and the water 76-80 on the freeway with the Nismo thermostat. That is with a 30 row 12an oil cooler. I guess the Greddy oil thermostat is set a little high. I wonder if the water-oil cooler is affecting it's operation...

I have still seen 118 degree oil temps at PI, even though the oil cooler has a 14 inch thermo running flat out. You can never have enough cooling at the track as I found out.

Where did you mount it mate? Got a photo?

bigkevracer Grand Master

bigkevracer

Posted
Posted

Years ago I was told that cooling the oil is more efficient than a radiator at keeping an engine from cooking. I never believed it till I put one on a V8 with chronic overheating issues. The core was approx 200 x 300mm (sold by a truck spare parts place to "cool a Mack" - I lol'd at him). So put it in & it instantly fixed my overheating problem. In fact I reckon I could've run without coolant, except I wanted the heater to work. Had to block the airflow (to the cooler) in winter so the engine had a chance to get to operating temp.

The one Hayden chose looks plenty big enough to me.

Edit: to clarify, mine didn't have a thermostat. That would've been a better idea, but meh, cardboard worked ok.

Thats what I'm interested in. But you havent got one in your Stag yet do you?

Commsman Veteran

Commsman

Posted
Posted (edited)

Thats what I'm interested in. But you havent got one in your Stag yet do you?

No I don't, but I also don't have cooling issues, yet. If there was such a thing as a finned sump, it would probably provide all the extra cooling a modified road car would need. (Not talking track days here.)

Is there room somewhere out of the front airstream to mount a cooler? That would radiate a fair amount of heat by itself, or a small fan (or 2) could help (thinking computer case sized). I don't think there's room in front of the radiator in my car either, so one day could have to look for alternatives.

Anyone else noticing a slight handling change everytime they add more weight ahead of the front axles?

Edited by Commsman
bigkevracer Grand Master

bigkevracer

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Nah thats cool Craig. I'll pull the bumper off when I get back and see what's what.

Tells me we only need a little one, which should be easier to mount. Say a 10-13 row. Just Jap have some really good pricing on the ones that Hayden used here, and there are some decent adaptors on ebay. Should be able to get something half decent for ~$150 plus hoses.

Mr 20Valve Rising Star

Mr 20Valve

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Look for a sandwich plate that allows you to angle the lines to/from it at 45deg like the Greddy ones.

Try to buy one similar to this: http://bit.ly/TJfXJw

If the adapter is one that only has the inlet/outlet coming out at 90deg to the filter, chances are you'll foul the hoses on something like the aircon lines...

Jetwreck Grand Master

Jetwreck

Posted
Posted

You can get the grex thermo plate with a the two sensor bolts for about $140 delivered from the US. Scott has the details. Or do what I did and wait for a good deal to pop up. I think there is a hks cooler with sandwich plate for a pm35(same thing) on IM ATM......works out to be about $450 delivered.

bigkevracer Grand Master

bigkevracer

Posted
Posted

I'll check out the US deal Craig, thanks. The one Hayden linked to looks like it'll be fine too.

GCG have them locally, but a bit pricier: http://gcg.com.au/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=1132&category_id=201&option=com_virtuemart&Itemid=101

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