Oil cooler on M44

[lpcapital]

Originally Posted by cooljess76

ahhhh, you're right.

Don't quote me on it, I'm really just guessing...

[Danny318]

It would be sweet to have a cap that had the feed and return hoses for the cooler and also the threaded holes for sensors built in.

I am interested and would pay for a legit cap for cooling, and if there was a bolt in cooling kit I would pay for that.

Why not use a setrab oil cooler radiator made for oil cooling? They are cheap enough.

[lpcapital]

Originally Posted by Danny318

It would be sweet to have a cap that had the feed and return hoses for the cooler and also the threaded holes for sensors built in.

I am interested and would pay for a legit cap for cooling, and if there was a bolt in cooling kit I would pay for that.

Why not use a setrab oil cooler radiator made for oil cooling? They are cheap enough.

Here's my shopping list.

- $150 for the IE oil cap... Hopefully a little bit less since I've been helping them out with this. It should have 3/8-18FTP fittings.

- $85 for the IE 19 row oil cooler. It looks good quality stuff and the price i good. It already has -8AN fittings

- $45 for a Perma-Cool remote thermo (http://perma-cool.com/Catalog/Cat_page14.html) on Jegs (http://www.jegs.com/i/Perma-Cool/771/1060/10002/-1) with the 3/8-18FTP .

- $120 for oil temp & pressure gauges & senders. The temp sender will be VDO p/n 323-092 which is 300F and M15x1.5: I will mount it where the pressure is now. The pressure sender will be VDO p/n 360-009 0-80PSI with 7PSI warning and 1/8-27MPT fitting: I will mount it on the exit from the thermo using a street tee. Gauges I'll use VDO vision and I'll probably get the a-pillar pod. A good source is www.egauges.com

- $100 for various fitting & hoses. Here's a brief list. P/n are from this company called www.fastfittings.com:

- #6 3/4-16 Male JIC to 3/8-18 MTP (JIC and AN are the same thing. AN is aerospace specs which, IMHO is overkilling it. JIC is industrial, and about 1/3 the price... I have a feeling they also jack up the price of AN fittings...). #4 are for the thermo, 2 are for the oil cap. p/n 28-711;

- #1 street tee 3/8-18 (2 are female & 1 male) to add the oil pressure sender. p/n 28-247;

- 1 bushing 3/8-18 MTP to 1/8-27FTP needed to fit the oil pressure snder in the street tee. p/n 28-103

- #8 -8AN hose ends. I'm thinking #6 are probably striaght, while #2 (for the oil cooler are 90deg). If you check on Jegs they have them and the price is fair. I'm gonna go with nickel plated to keep it stock looking (the red and blue are kinda F&F, while the black has nothting to do with the brushed alu of the rest of the engine...)

- Black hose compatible with oil and bla bla bla... No steel braded... Just plain black hose...

All and all between $400 & $500 should do the trick... If you look around, it's not that much for an oil cooler system...

I haven't figured out all the details yet as far as hose lenght and all that stuff, but I'll keep you posted once I finalise it... I first wanna see if IE can make the plate...

[Danny318]

sounds pretty good to me.

[xxxJohnBoyxxx]

I did my oil cooler for under $75. Tee off before the oil pressure sensor, use turbo oil lines (1/8") and run them to a large oil cooler. Before the cooler install restrictor with 1/8" hole drilled in it. Return dump to oil pan bung.

I know, I know this is the Beverly Hillbilly version but it works. I use a turbo instead of the 1/8" restrictor

$400~$500 to cool your oil...Ouch

I will post a picture of my oil cooler when I get home

[lpcapital]

The only concerns I have with your solution is that you're actually affecting oil pressure. I don't know if the oil pressure regulator is able to compensate, but you might get in a situation where the restriction required to keep oil pressure in the acceptable range is too small to actually allow enough oil to flow through the cooler.

Do you have any value of oil pressure and oil temp?

[Danny318]

wouldnt want to bypass the oil filter either.

[xxxJohnBoyxxx]

Originally Posted by lpcapital

The only concerns I have with your solution is that you're actually affecting oil pressure. I don't know if the oil pressure regulator is able to compensate, but you might get in a situation where the restriction required to keep oil pressure in the acceptable range is too small to actually allow enough oil to flow through the cooler.

Do you have any value of oil pressure and oil temp?

My engine is 25psi at 900rpm idle and 70psi wot. Didn't think about that but I run a non M44 pump and high pressure relief valve. Mine flows a lot at 25psi idle...If you look at the video of first start turbo you can see it through the clear hose on the bottom of the large silver oil cooler on passenger side.

The over pressure relief valve closes and increases pressure on our motors to make the correct oil pressure when you tap off and divert oil somewhere else. I noticed no change in my idle or WOT oil pressure after installing the trbo and oil cooler.

[xxxJohnBoyxxx]

Originally Posted by Danny318

wouldnt want to bypass the oil filter either.

I might be wrong but I looked at this real close and the pressure sendor is read after the oil is filtered so the oil is filtered before it hits the sendor. The pressure sensor takes into account a clogged filter for readings. Metric confirmed this but we both could be wrong. I'm never 100% sure of anything that is not my engine to break

I was told to tap the oil for the turbo from there since it was filtered oil which was my first question. You would be surprised how much oil goes through a 1/8" hole at 25~50psi. I broke the clear hose on the bottom of the oil cooler and dumped 5 quarts in a ride around the block (1 minute). There is a perfect thick line on the street out my driveway, around the block and back to my driveway. Lucky I run 8 quarts now or I would have smoked that Metric motor. No smoke but it sure lit the tires up easy with no boost with all that oil. Took me weeks to get it all cleaned up....

[lpcapital]

You are right, the oil at the pressure sensor is both filtered and passed the by-pass for the clogged filter. It basically read the true oil pressure going into the engine.

[xxxJohnBoyxxx]

lpcapital, is this oil cooler you making thermostat controlled? If not you need to figure out how to add that into the system. Hot motor + cool oil = bad

[lpcapital]

Yes, i'm planing on having a thermo.

It's from Perma-cool (http://perma-cool.com/Catalog/Cat_page14.html).

It's always open 10% (meaning regardless the temp at least 10% of the oil will go to the cooler): this is to warm up the cooler and avoid temperature shocks. Once oil temperature reaches 180deg the themro is fully open and oil circulates thorugh the cooler... This way the engine warms up quickly and oil tmeperature remains constant...

I'm still waiting on IE to get back to me on the oil filter cap: hopefully today is the day...

[lpcapital]

I just got off the phone with Jeremy at IE.

He said that the standard S52 cap won't fit: although the cap of the M42 oil filter hosing is the same, the spindle inside the oil filter housing is smaller... Not by much, but just enough to not make it work.

He said he's gonna talk to Jeff as he has a couple of ideas on how to make it work. He said he'll keep me posted...

Is there really no one intersted in this? Looks like it's gonna be only me and Danny318...

[tiFreak]

I may be, do you have a pic of what the cap looks like?

[lpcapital]

The cap is probably gonna be derived from the one for the E36 which looks like this:





They sell it either black anodized or natural aluminum.

I like the oil cooler IE has since it's a good price for the size. IE was never known to have flashy stuff, but all the stuff they sell, they use it on their race cars, so it's very functional

For the cap go on the IE website (www.bmw2002.com) and it's under the E36 - Engine section (Oil cooler adapter). The heat exchanger is under the "Other Racing parts"

The best way to mount an oil cooler (just like any other radiator) is vertical with the inlet lower than the outlet.