When it comes to maintaining the health and performance of your vehicle, managing heat is one of the most important tasks. High-performance engines, especially those used in racing or heavy-duty towing, generate significant amounts of heat that can break down oil and damage internal components. SUSA, also known as Setrab USA, provides the specialized oil cooling systems and components needed to keep temperatures stable. Whether you are building a dedicated track car or simply want to protect your daily driver, understanding how to select and install the right cooling parts is essential for long-term reliability.
Understanding the Importance of Oil Cooling
Engine oil does more than just lubricate moving parts; it also plays a critical role in cooling the engine. While the radiator handles the coolant, the oil carries heat away from the crankshaft, bearings, and pistons. If the oil becomes too hot, its viscosity breaks down, leading to increased friction and potential engine failure.
By installing a dedicated oil cooling system, you provide a way for the oil to release heat into the atmosphere before it recirculates through the engine. This process ensures that the oil stays within its optimal operating temperature range, which typically falls between 180°F and 210°F for most street and performance applications.
The Role of SUSA and Setrab in Performance
SUSA is the North American partner for Setrab, a Swedish manufacturer world-renowned for producing high-quality heat exchangers. Their products are used by professional racing teams and high-end automotive manufacturers because of their efficiency and durability. When you look for SUSA parts, you are looking for professional-grade components designed to withstand high pressure and vibration.
The core of these systems is the oil cooler itself. These units are designed with a series of internal pathways and external fins that maximize surface area. As air passes through the fins, it draws heat out of the oil flowing through the internal channels.
Key Features of Performance Oil Coolers
- Braze-on Construction: High-quality coolers are vacuum-brazed to ensure a strong, leak-proof bond that can handle high oil pressures.
- Low Pressure Drop: Efficient designs allow oil to flow freely without causing a significant drop in oil pressure, which is vital for engine safety.
- Durability: Performance coolers are often finished with epoxy coatings to protect against corrosion and road debris.
- Versatility: They come in various sizes and row counts to fit into tight spaces behind bumpers or grilles.
Exploring the SUSA Product Catalog
Finding the right parts requires knowing the specific needs of your vehicle. SUSA offers several series of oil coolers and a wide range of accessories to create a complete cooling solution. Here are the main components you will encounter when searching for performance cooling parts.
Setrab Series Coolers
The most common coolers are categorized by their width and row count. The Series 1, Series 6, and Series 9 are the most popular choices. A Series 1 cooler is narrow and tall, making it ideal for motorcycles or tight vertical spaces. The Series 6 is the standard choice for most automotive applications, offering a balance of size and cooling capacity. The Series 9 is wider, providing maximum cooling for high-horsepower engines.
Oil Filter Sandwich Plates
To connect an oil cooler to your engine, you usually need a sandwich plate. This component installs between the engine block and the oil filter. It provides ports where you can attach the hoses that lead to the cooler. Many SUSA sandwich plates include a built-in thermostat, which is a critical feature for street-driven vehicles.
Thermostatic Control
A thermostat ensures that the oil only flows through the cooler once it has reached a certain temperature. If the oil is too cold, it won’t lubricate the engine effectively. The thermostat remains closed during the warm-up period and opens once the oil is hot enough to benefit from cooling. This prevents “over-cooling” in cold weather.
How to Choose the Right Oil Cooling System
Selecting the correct parts involves more than just picking the largest cooler available. You must consider the space available in your vehicle and the specific demands of your driving style. Over-sizing a cooler can make it difficult for the engine to reach operating temperature, while under-sizing it will not provide the protection you need.
Assess Your Cooling Needs
If you primarily drive on the street with occasional spirited driving, a medium-sized Series 6 cooler is often sufficient. However, if you participate in track days or endurance racing, you will likely need a larger Series 9 cooler or even dual coolers. Consider the horsepower of your engine; more power generally means more heat generation.
Measure Your Installation Space
Before purchasing, measure the area behind your front grille or bumper. You need to ensure there is enough room for the cooler body and the fittings that attach to the hoses. Remember that the cooler needs a steady stream of airflow to work effectively, so it should be placed in a location where it isn’t blocked by other components.
Choose the Correct Fittings and Hoses
Performance systems typically use “AN” fittings, which are a standardized type of flared fitting used in racing. Most SUSA oil coolers use -8AN or -10AN sizes. It is important to match the hose size to the fittings to prevent leaks. Braided stainless steel or nylon hoses are recommended for their resistance to heat and abrasion.
Installation Tips for Success
Installing an oil cooling system is a straightforward process, but it requires attention to detail. Proper mounting and routing are the keys to a system that lasts for years without issues.
Mounting the Cooler
Always use dedicated mounting brackets to secure the cooler. Avoid using “zip-tie” style mounts that go through the radiator fins, as these can cause damage over time due to vibration. The cooler should be mounted securely to the vehicle’s frame or core support. Ensure there is a small gap between the oil cooler and the radiator to allow for proper airflow for both units.
Routing the Hoses
When routing the oil lines, avoid sharp bends that could kink the hose and restrict oil flow. Keep the lines away from moving parts like fans or belts, and use heat shielding if the lines must pass near exhaust components. Use zip ties or p-clamps to secure the hoses every few inches to prevent them from rubbing against the chassis.
Checking for Leaks
Once the system is installed, fill the engine with the appropriate amount of oil (remembering that the cooler and lines will require extra oil). Start the engine and let it idle while you inspect every connection for leaks. After the engine has reached operating temperature and the thermostat has opened, check the oil level again and top it off as needed.
Where to Find Genuine SUSA Parts
When purchasing high-performance parts, it is vital to buy from reputable sources to ensure you are getting genuine Setrab or SUSA components. Counterfeit coolers are common in the marketplace and often fail under pressure, leading to catastrophic engine damage. Look for authorized dealers who specialize in automotive performance and cooling systems.
Many online retailers provide detailed specifications, including dimensions and BTU ratings, for each cooler. This information is invaluable for planning your build. Additionally, look for shops that offer complete kits, which include the cooler, sandwich plate, hoses, and fittings specifically tailored to your vehicle make and model.
Conclusion
Upgrading your vehicle with a SUSA oil cooling system is one of the best investments you can make for engine longevity. By controlling oil temperatures, you ensure that your engine stays protected even under the most demanding conditions. Start by evaluating your vehicle’s specific needs and measuring your available space. Once you have the right components, a careful installation will provide you with a reliable cooling solution that enhances performance and peace of mind.
If you found this guide helpful, consider exploring our other articles on engine maintenance and performance upgrades to keep your vehicle running at its best.