Oil Cooler Fan

kimoboy · 04-07-2016, 07:07 AM

Hi,

My car has the stock oil cooler, and it looks real small for our engine. I was thinking to install fan on it, to cool it, rather spending $$$ on upgrading the oil cooler.

Like this one

kimoboy · 04-07-2016, 07:27 AM

This what I was thinking of buying

theweebabySeamus · 04-07-2016, 11:21 AM

You're still trying to use a cooler that's too small. The fan might (also might not) help a little, but you still need to upgrade the size of the core if you want the effect of a cooler upgrade.

JETmn · 04-07-2016, 12:20 PM

Oil flow volume in an engine isn't that high, so you don't need a huge oil cooler. The lower the flow, the longer the fluid stays in the cooler which gives it more time to cool down. The factory one should be sufficient for most unless you are tracking the car. Have you seen any problems with oil temps?

kimoboy · 04-07-2016, 12:50 PM

Where i live its hot and i think oil temp will go up if i drive hard. I was thinking of taking the thermostat out so the oil flows to the cooler right away.

JETmn · 04-07-2016, 02:56 PM

Quote:

Originally Posted by kimoboy

Where i live its hot and i think oil temp will go up if i drive hard. I was thinking of taking the thermostat out so the oil flows to the cooler right away.

You have an oil temp gauge on the dash. I would make sure you have a problem or else you may be trying to solve a problem you don't even have.

kimoboy · 04-07-2016, 03:47 PM

I dont have a problem.
It gets like 100F here, and if i drive hard, sure the temp will go up.

Quote:

Originally Posted by JETmn

You have an oil temp gauge on the dash. I would make sure you have a problem or else you may be trying to solve a problem you don't even have.

theweebabySeamus · 04-08-2016, 12:38 AM

Quote:

Originally Posted by kimoboy

I dont have a problem.
It gets like 100F here, and if i drive hard, sure the temp will go up.

So yeah, then the fan definitely won't do anything. When you get on it the oil cooler gets more airflow through it than the fan will produce.

kimoboy · 04-08-2016, 09:18 AM

In traffic the fan will work better.
I can put it behind the cooler this way it will suck the hot air out

Quote:

Originally Posted by theweebabySeamus

So yeah, then the fan definitely won't do anything. When you get on it the oil cooler gets more airflow through it than the fan will produce.

9krpmrx8 · 04-08-2016, 09:25 AM

A fan will actually inhibit the coolers ability to function well at speed.

I also own a Mazda RX-8 Turbo that comes with two oil coolers about the size of the cooler my 335i has and I did a bit of testing on my RX-8 with fans a couple years back and I used a nice Spal fan and it just did nothing. At idle it will drop temps a small amount but at speed temps were higher.

A better/larger cooler in the way to go. I now use a large BEHR oil cooler from an S class mercedes as a secondary oil cooler on my RX-8.

theweebabySeamus · 04-08-2016, 12:01 PM

Quote:

Originally Posted by kimoboy

In traffic the fan will work better.
I can put it behind the cooler this way it will suck the hot air out

Right, so it'll make a marginal difference in traffic and zero difference at the speeds you said you were concerned about. Again, you simply need a bigger/better cooler to do what you want.

SlimE92 · 04-08-2016, 12:21 PM

Quote:

Originally Posted by theweebabySeamus

Quote:

Originally Posted by kimoboy

In traffic the fan will work better.
I can put it behind the cooler this way it will suck the hot air out

Right, so it'll make a marginal difference in traffic and zero difference at the speeds you said you were concerned about. Again, you simply need a bigger/better cooler to do what you want.

I agree. There's a couple of upgraded kits out there

Dark_Knight_335 · 04-08-2016, 04:20 PM

Nothing will replace an upgraded oil cooler. The oil gets hotter than any external fan can affect.

04-07-2016, 07:07 AM	#1
kimoboy Second Lieutenant 47 Rep 292 Posts Drives: E90 335i Join Date: Sep 2014 Location: Earth iTrader: (0)	Oil Cooler Fan Hi, My car has the stock oil cooler, and it looks real small for our engine. I was thinking to install fan on it, to cool it, rather spending $$$ on upgrading the oil cooler. Like this one
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04-07-2016, 07:27 AM	#2
kimoboy Second Lieutenant 47 Rep 292 Posts Drives: E90 335i Join Date: Sep 2014 Location: Earth iTrader: (0)	This what I was thinking of buying Attached Images
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04-07-2016, 11:21 AM	#3
theweebabySeamus Captain 376 Rep 902 Posts Drives: M3 Join Date: Jul 2014 Location: Bay Area iTrader: (1)	You're still trying to use a cooler that's too small. The fan might (also might not) help a little, but you still need to upgrade the size of the core if you want the effect of a cooler upgrade.
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04-07-2016, 12:20 PM	#4
JETmn Lieutenant Colonel 245 Rep 1,595 Posts Drives: 2011 335i xDrive Msport Join Date: Apr 2013 Location: Orlando iTrader: (0) Garage List 2011 335Xi [0.00]	Oil flow volume in an engine isn't that high, so you don't need a huge oil cooler. The lower the flow, the longer the fluid stays in the cooler which gives it more time to cool down. The factory one should be sufficient for most unless you are tracking the car. Have you seen any problems with oil temps?
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04-07-2016, 12:50 PM	#5
kimoboy Second Lieutenant 47 Rep 292 Posts Drives: E90 335i Join Date: Sep 2014 Location: Earth iTrader: (0)	Where i live its hot and i think oil temp will go up if i drive hard. I was thinking of taking the thermostat out so the oil flows to the cooler right away.
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04-08-2016, 09:25 AM	#10
9krpmrx8 Clean is the new cool, keep it that way. 808 Rep 1,685 Posts Drives: 11' Alpine White 335i Sedan Join Date: Jan 2016 Location: San Antonio, Texas iTrader: (0)	A fan will actually inhibit the coolers ability to function well at speed. I also own a Mazda RX-8 Turbo that comes with two oil coolers about the size of the cooler my 335i has and I did a bit of testing on my RX-8 with fans a couple years back and I used a nice Spal fan and it just did nothing. At idle it will drop temps a small amount but at speed temps were higher. A better/larger cooler in the way to go. I now use a large BEHR oil cooler from an S class mercedes as a secondary oil cooler on my RX-8. __________________ 2011 335i, FBO, N55+ Turbo, full E85, S55 intercooler, etc. 2015 X5 35i Xdrive
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04-08-2016, 04:20 PM	#13
Dark_Knight_335 Came to the N55 Darkside 1112 Rep 12,740 Posts Drives: 2011 335 E93 M-Sport Join Date: May 2010 Location: NY/NJ iTrader: (28)	Nothing will replace an upgraded oil cooler. The oil gets hotter than any external fan can affect.
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