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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Thu, Sep-11-2014, 05:06:50 PM   #31
Hacksaw
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Default Re: Mishimoto E46 M3 Oil Cooler Build Thread

Looking forward to the technical break down and data points of the testing and comparison to stock.

Keep the updates coming!
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Old Fri, Sep-12-2014, 02:35:00 PM   #32
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Default Re: Mishimoto E46 M3 Oil Cooler Build Thread

Quote:
Originally Posted by Bumnah View Post
The new AN lines look to be routed the same as factory, so I suspect the length is similar to stock. The diameter of the lines looks to be larger than factory.

Will you be able to detail the oil pressure differences pre/post oil cooler upgrade, including oil pressure when the engine is hot/cold at idle and in operation?

Between this build and the e46 radiator build you guys seem to have really taken an interest in upping your build quality. Hats off! I've received great customer service from Mishimoto when dealing with your older style e46 radiator, frankly I wish you nothing but the best in business. I may be a part of this oil cooler buy too!
Very true, the stainless lines are routed in a similar fashion compared to the stock lines. We will be highlighting oil pressure loss across the core of the cooler during our tests. Our current graphs only show pressure during operation, however I am sure we have the data to put a chart together for idle pressures. Our following posts will include the pressure data.

Thanks for the kind words regarding our products, quality, and customer service. Always great to hear positive feedback!

Quote:
Originally Posted by 6spd_legend View Post
Looking forward to the test results- any insight on potential release date?
Thanks for taking a look. We should be releasing this cooler within the next few weeks.

Quote:
Originally Posted by mdavidm3 View Post
how much more oil capacity is this over stock?
The fluid capacity increase is quite significant. We will provide these specific details in an upcoming post.

Quote:
Originally Posted by Hacksaw View Post
Looking forward to the technical break down and data points of the testing and comparison to stock.

Keep the updates coming!
Thank you very much!
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Old Fri, Sep-12-2014, 07:38:20 PM   #33
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Default Re: Mishimoto E46 M3 Oil Cooler Build Thread

Check out a quick update on this project below! Our final post, which includes data, will be posted up early next week! Thanks for following thus far!

Mishimoto BMW E46 M3 Direct-Fit Oil Cooler Kit, Part 4: Cooler Installation and Data Collection

Time to see if this cooler can make a significant impact on fluid temperatures. As before, we borrowed a test fit vehicle from the folks over at Open Road Tuning. Once we had the car on the lift, we removed the factory cooler lines and spliced our temperature sensors into the stock lines so we could collect inlet and outlet fluid temperatures.


Temperature sensors installed


Laptop prepared for data collection

Once everything was installed and checked for leaks, we hit the road. The testing conditions below were followed for both the stock cooler and the Mishimoto oil cooler prototype.

Testing Conditions

Ambient temperature: 69F70F (20.5˚C21.1˚C)
Humidity: 20%
Sensor: PLX temperature sensor reading 10 times per second
Driving conditions: 65 mph highway, cruise for 5 miles (special attention given to vehicles driving in front of the M3 to assure fresh airflow to cooler)
Oil housing thermostat: Removed to achieve accurate data

Once we had our data for the stock cooler, the team returned to the shop and allowed the vehicle to cool. We then installed the Mishimoto oil cooler prototype and verified fitment!


Mishimoto prototype installed

Our sensors were then installed in our -10AN stainless lines to collect our temperature data.


Mishimoto prototype installed with temperature sensors


Mishimoto prototype installed with temperature sensors

We then hit the road for data collection, following the same testing conditions as with the stock cooler. Although difficult to see, you can spot the cooler through the bottom of the grille!


Mishimoto prototype installed

Additionally, because we were planning to remove the shrouding from the oil cooler to install the larger Mishimoto unit, we decided to experiment with a fabricated shroud to see if it would have an impact on efficiency. After fabricating this component, numerous tests were conducted similar to the testing conditions described above. We did not see any appreciable gains in efficiency with the addition of a shroud, so we will not be including this with our design. Our airflow testing showed that even without a shroud, our cooler was receiving ample airflow for cooling efficiency.

Now that we had our real-world testing data, we headed back to HQ to crunch the numbers for cooler performance. Check back next time for the review of our data and a few shots of the finished product!

Thanks!
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Old Fri, Sep-12-2014, 08:16:45 PM   #34
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Default Re: Mishimoto E46 M3 Oil Cooler Build Thread

Damn, someone has Marsteller putting in the overtime on these write ups, they're killer.

Nice work as always, love the mishimoto products on both my M3 and my Powerstroke.
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Old Mon, Sep-15-2014, 05:25:44 PM   #35
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Default Re: Mishimoto E46 M3 Oil Cooler Build Thread

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Damn, someone has Marsteller putting in the overtime on these write ups, they're killer.

Nice work as always, love the mishimoto products on both my M3 and my Powerstroke.
Thanks Andrew, we are always hard at work here. Nice to hear some feedback on the posts.

Our data is now up! Check it out below and feel free to follow up with any questions.


Mishimoto BMW E46 M3 Direct-Fit Oil Cooler Kit, Part 5: Final Data Review


The results are in and they are exactly what we expected! This cooler provided huge gains in cooling efficiency. Lets take a look at the data we compiled. First up is the core volume comparison.


Core volume comparison

As you can see, the Mishimoto oil cooler provides a huge increase in total core volume. The fluid capacity for the stock cooler is 0.34 qt, while the Mishimoto cooler holds 0.78 qt. This is a huge increase in volume.

The additional fluid capacity will add 4 lb to the front end of the vehicle. Although not a huge number, we still needed to check if this added weight would produce any issues with the mounting brackets and stress-related failures. Our team used Finite Element Analysis (FEA) software to ensure that the bracket would support the added weight.


FEA bracket stress testing

This analysis reveals any areas of the component that will experience stress and how that amount of stress will impact the integrity of the part. In this case, the material being used features a much higher yield strength compared to what it will experience during use. This component checks out!

Next up is the data that will answer the most important question of all: How is this cooler going to benefit you and your M3? Check out our temperature chart below!


Oil cooler temperature data comparison

The Mishimoto oil cooler provides huge gains in cooling performance. Remember, testing conditions were identical for both the stock cooler and the Mishimoto oil cooler. We saw the outlet temperature for the Mishimoto cooler decrease by as much as 30F.

The next chart shows our evaluation of cooler efficiency. By measuring the inlet and outlet temperatures, we can see how effective the cores are at exchanging heat.


Oil cooler efficiency data comparison

The Mishimoto oil cooler provides an efficiency increase of 29% compared to the stock cooler. This improvement is vital for keeping safe temperatures on the track.

Finally, we collected fluid pressure data to ensure that our product did not have a negative impact on oil pressure.


Oil cooler pressure loss data comparison

The Mishimoto oil cooler provides a dramatic 11 psi reduction in pressure loss compared to the stock cooler!

So, now that we had a slew of impressive performance gains, this product testing was complete. Lets quickly review our initial goals to see how well this project stayed on target.

Project Goals

1. Kit must be a direct fit, all inclusive, and require no irreversible vehicle modification.

This kit is a direct-fit unit that includes all necessary components for installation and requires no irreversible vehicle modification. The kit includes an oil cooler, stainless steel braided oil lines, an adapter kit for the oil lines, and all necessary hardware. The only minor modification required is the removal of the oil cooler shrouding, which can be reinstalled if the user wishes to revert to the stock setup.

2. Must provide a proven reduction in oil temperatures.

Our real-world testing showed a 30F reduction in fluid temperatures and a 29% improvement in cooler efficiency. This oil cooler is a perfect upgrade from the stock unit for those who drive aggressively and/or track their M3.

3. Pressure loss must be similar or better compared to the stock cooler.

Our oil cooler provided an improvement in pressure loss of 11 psi across the core!


4. Cooler must function with either the stock or Mishimoto radiator.

Our test fitting confirmed that the Mishimoto oil cooler will function perfectly with the stock radiator or the Mishimoto Performance Aluminum Radiator! To see more information about our aluminum radiator, visit the link below!

http://engineering.mishimoto.com/?cat=113

This project is complete! Check out the image of this kit below!


Mishimoto E46 M3 Oil Cooler Kit

Feel free to follow up with any questions or comments. Stay tuned for future BMW development projects!

Thanks
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Old Mon, Sep-15-2014, 05:34:15 PM   #36
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Default Re: Mishimoto E46 M3 Oil Cooler Build Thread

Will the oil cooler be available without the AN adapter and lines for people who already have those parts?
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Old Mon, Sep-15-2014, 06:00:04 PM   #37
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Default Re: Mishimoto E46 M3 Oil Cooler Build Thread

Great data and very nice looking piece! This is on my 'to buy' list.
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Old Mon, Sep-15-2014, 06:09:42 PM   #38
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Default Re: Mishimoto E46 M3 Oil Cooler Build Thread

wow great results
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Old Mon, Sep-15-2014, 06:11:21 PM   #39
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Default Re: Mishimoto E46 M3 Oil Cooler Build Thread

Was all testing done with the under belly pan removed?


Since ambient temps were rather mild, any thoughts on what this will perform like in high heat/humidity conditions and for a longer duration?


What is planned release date?


And is there a plan group buy once there is a release to production?
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Old Mon, Sep-15-2014, 06:16:50 PM   #40
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Default Re: Mishimoto E46 M3 Oil Cooler Build Thread

very interested in this! cant wait to pick one up!
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Discussing Mishimoto E46 M3 Oil Cooler Build Thread in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)