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It's well known that the N54 and N55 engines runs very hot. Turbos that build a lot of heat and a small radiator play into why this engine runs so hot. A quick look at your gauge cluster on your dash after a few minutes of "spirited" driving, you'll notice oil temperatures over 250 degrees. Considering that most cars don't even exceed 230 degrees tells you quite a bit. As oil temperatures get too high, thermal degradation occurs. This is when the oil starts to lose viscosity due to heat and starts to break down and becomes more susceptible to "shearing" or oil breakdown. An internal combustion engine like the BMW N54 / N55 engine, imparts high shear forces on the motor oil, which is sandwiched between two rotating or sliding forces under load and heat. "Shearing" is when the molecular structure is essentially torn apart by these mechanical shear forces. Lower your operating oil temperature will greatly reduce this. Thus your motor oil is in better shape to protect the bearings in your car's engine, thus improving longevity.
The BMW 135i / 335i comes from the factory with a small oil cooler with a core size of 8.75" x 4.75" x 1" (222mm x 121mm x 26mm) which comes out to 41 cubic inches of core. The Sports Series Oil Cooler system features a larger 11" x 8" x 2" (280mm x 203mm x 51mm) oil cooler with a core size of 9" x 8" x 2" (229mm x 203mm x 51mm). The Sports Series Oil Cooler comes out to 144 cubic inches of core which is 3.5 times larger than the factory unit each!
The Sports Series Oil Cooler mounts to its own box enclosure. Louvers on the backside of the box enclosure ensures airflow through the oil cooler while protecting the oil cooler from road debris, especially debris kicked up from the front tires. During initial testing, the box enclosure had a big window (open hole) in the back for airflow. However, throughout the race season, it took so much abuse from rocks, tire and other debris kicked up from the front tires that Evolution Racewerks redesigned it and replaced the oil coolers on their Time Attack 135i. Thus, instead of a big hole for airflow to flow through, they used louvers to protect the back side of the oil cooler. This effectively solved the issue without any affects on performance. Oil temperatures as well as oil temperature deltas stayed the same.
- Reduces the high oil temperatures that the N54 and N55 engine produces which helps reduce oil breakdown, improving the longevity of your car!
- Large 9"x8"x2" (11"x8"x2" with end tanks) Oil Coolers. Factory stock oil cooler 8.75"x4.75"x1"
- Over 350% larger capacity than the factory oil cooler!!!
- Sports Oil Cooler has a total of 144 cubic inches of core! Factory oil cooler has 41 cubic inches.
- Available with no finish (silver) or Type III Hard Black Anodizing (for stealth). Hard anodizing helps improve durability of intercooler fins against damage from road debris (rocks).
- Enclosed box with venting louvers - protects oil coolers from road debris without sacrificing airflow!
- High Quality Goodrich AN Fittings in Black Anodize - NO China made fittings used here.
- High End Goodrich Nylon Braided Oil Lines - much better than Stainless Steel braided Oil Lines
- Aluminum Shrouding to direct airflow through the oil coolers for improved efficiency.
- Includes all hardware needed to install. No need to go hunting for hardware to finish the installation.
- Developed under the harsh racing conditions on the Evolution Racewerks 135i Race Car piloted by Achilles Motorsports Driver VJ Mirzayan.
- Limited Lifetime Warranty.
Fits The Following Vehicles:
- 2007 - 2011 BMW E90 E92 E93 335i
- 2008 - 2011 BMW E82 E88 135i
- 2011+ BMW 1 Series M Coupe or 1M Coupe
Available Options:
- Black Type-III Hard Anodized Finish - The oil coolers come standard with no finish (silver color). Just like our intercoolers, we're now offering them with the Type III Hard Anodize Black for guys who want the stealthy look. With the Type III Hard Anodized finish, it is very hard to tell there is an aftermarket oil cooler on the car. Another added benefit of the Type III Hard Anodizing is that it makes the oil cooler fins harder and stronger, which makes it less prone to getting bent/damaged from road debris like rocks etc... We opted for the Type III Hard Anodizing over the Type II color anodizing which is only asthetics for this purpose only (even though it cost us considerably more to anodize Type III than Type II). We started using the Type III Hard Anodized Black finish on our rally car customer's FMICs years ago. Rally cars go through tremendous amounts of abuse and it was quite common to take hits on the intercooler from debris on the course. In fact after 1 event, we would often see a large portion of the intercooler fins bent (killing efficiency) and fixing them after each event was quite tedious. After the Type III Hard Anodizing, we notice a big difference as there was considerably less damage. Even after hits and even accidents, the FMIC could take more abuse than before. Testing has shown no noticeable ill-effect from the Type III Hard Anodizing on performance (regular spray paint etc... has shown ill-effects on performance). Eventually, we started utilizing the same Type III Hard Anodize Black on our street cars and FMIC applications. It's only natural we would offer the same finish for our oil coolers.
- Sport Series Oil Cooler Shrouding Kit - When the oil cooler box enclosures are used in conjunction with our optional ducting shroud kits, the oil cooler box enclosure actually seals and forces all the airflow captured by the ducting shrouds through the oil cooler cores. Improves the oil cooler's effectiveness and efficiency. These are model and bumper specific so make sure you select the correct shroud kit option above.
- Oil Cooler Retrofit Kit For Early 2006 Model 335i With No Factory Oil Cooler - The very first 335i built in early 2006 did not come from the factory with an oil cooler. With the N54 engine running very hot, BMW quickly realized that this was a big mistake. An oil cooler was quickly added the next year. For those who do not have the factory oil cooler, you will need to convert your car's oil filter housing to a later model year that has external ports for an oil cooler. We are now offering these brand new genuine BMW parts to make the conversion. Parts included: Oil Filter Housing, Oil Cooler Thermostat housing, gaskets and hardware.
Everything needed to install is included with the kits. No low quality, cheap fittings and lines made overseas used here. High quality Goodrich anodized black AN fittings and high end Goodrich Nylon Braided Lines are used throughout the kit. These high end Goodrich Nylon Braided lines are the new thing to use for oil lines as they have many advantages and no disadvantages (other than higher price) than traditional stainless steel braided lines. The main advantage is that they are lightweight. Nylon is considerably lighter than stainless steel. The second advantage is that Nylon Braided Lines are stronger than traditional stainless steel lines. Third, is that Nylon Braided Lines do not fray. Stainless steel braided lines will start to fray and those who are familiar with stainless steel braided lines know what we're talking about. The stainless steel mesh in the lines start to "fray" or break and thus you get poked with the broken ends. Saves a lot of bloody fingers. Fourth, they are abrasive resistant. Since stainless steel lines will act like a saw when it comes in contact with anything and will eventually cut anything it contacts whereas the Nylon braided lines are soft and pretty much won't ever do it. Fifth, heat resistance. Nylon Braided lines can withstand more heat and retain the heat inside the line better. Stainless steel lines tends to release the heat inside the lines, thus when you touch the lines, they tend to be hot. With all these advantages of the Nylon Braided Lines over stainless steel lines, it's the obvious choice for an Evolution Racewerks product.
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