2019 Ford Taurus Sho Performance – Unlocking The Ultimate Sleeper
The 2019 Ford Taurus SHO is a modern “sleeper” that pairs a twin-turbocharged V6 with an intelligent all-wheel-drive system. This guide explores how to maximize your vehicle’s output through strategic maintenance, essential reliability fixes, and high-impact bolt-on upgrades.
You probably bought your Taurus SHO because you wanted a comfortable daily driver that could embarrass sports cars at a stoplight. It is a fantastic platform, but like any factory-tuned machine, there is a lot of hidden potential left on the table by the engineers. If you are looking to sharpen the throttle response or increase the boost, you have come to the right place.
We are going to dive deep into the mechanical nuances of the 3.5L EcoBoost engine and the heavy-duty 6F55 transmission. By the end of this article, you will have a clear roadmap for improving your 2019 ford taurus sho performance while keeping the car reliable for the long haul. Let’s get under the hood and see what this final-year Taurus can really do.
The Foundation of the 3.5L EcoBoost V6
The heart of the SHO is the 3.5-liter EcoBoost V6 engine, which produces 365 horsepower and 350 lb-ft of torque in its stock configuration. This engine utilizes direct injection and two small, fast-spooling turbochargers to provide a flat torque curve that makes the car feel lighter than it is. Understanding how these components interact is the first step in any performance journey.
Because the turbos are relatively small, they provide nearly instant boost at low RPMs, which is perfect for a heavy sedan. However, they can struggle with heat soak during spirited driving or back-to-back pulls. Improving the efficiency of the cooling system and the intake air charge is the most logical starting point for any DIY mechanic.
The all-wheel-drive (AWD) system is another critical piece of the puzzle, as it allows the car to put all that power to the ground without spinning the tires. However, the 2019 ford taurus sho performance can be limited by the weight of the vehicle, which tips the scales at over 4,300 pounds. Managing that mass is just as important as adding horsepower.
Maximizing 2019 ford taurus sho performance Through Tuning and Bolt-Ons
If you want the biggest “bang for your buck,” an electronic control unit (ECU) tune is the answer. A professional tune can recalibrate the boost pressure, ignition timing, and fuel maps to unlock significant gains. Many owners see increases of 50 to 80 horsepower just by switching to a 93-octane performance map.
The 3-Bar MAP Sensor Upgrade
To run higher boost levels safely, many tuners recommend installing a 3-bar MAP sensor. The factory sensor is often limited in its ability to read higher pressures accurately. Swapping this sensor is a simple DIY task that involves one bolt and a plug, allowing your ECU to manage increased boost without hitting a “fuel cut” or safety limit.
Cold Air Intakes and High-Flow Filters
While the factory airbox is decent, a high-quality cold air intake can improve the “whoosh” sound of the turbos and slightly reduce intake restrictions. Look for kits that include a heat shield to prevent the engine from sucking in hot air from the radiator. This ensures that the air entering the compressor housing is as dense as possible.
Upgraded Intercoolers
The stock front-mount intercooler (FMIC) is prone to heat soak, especially in summer months. Replacing the factory unit with a larger, high-efficiency intercooler will help maintain consistent power levels. When the air charge stays cool, the ECU is less likely to pull timing, which keeps your 2019 ford taurus sho performance at its peak during long drives.
Handling the Bulk: Suspension and Braking Upgrades
The Taurus SHO is a large car, and the factory suspension is tuned for a balance between comfort and sportiness. If you want to take corners with more confidence, you need to address the body roll and the high center of gravity. Lowering springs are a popular choice for DIYers because they provide a meaner stance and stiffer spring rates.
Brands like H&R or Eibach offer springs specifically designed for the AWD Taurus. These kits typically lower the car by about an inch, which improves aerodynamics and reduces the “floaty” feeling at high speeds. Pair these with performance struts if your factory dampers are starting to show their age.
Braking is perhaps the most overlooked aspect of performance. Stopping a two-ton sedan repeatedly will quickly overheat the factory rotors and pads. For a significant upgrade, consider ceramic-carbon brake pads and slotted rotors. Slotted rotors help dissipate the gases that build up between the pad and the disc, preventing brake fade during aggressive driving.
Critical Maintenance: The PTU and Cooling System
You cannot talk about the SHO without mentioning the Power Transfer Unit (PTU). The PTU is the gearbox responsible for sending power to the rear wheels, and it is notoriously prone to overheating. Ford originally marketed the PTU fluid as “lifetime,” but experienced mechanics know that is rarely the case.
To preserve your drivetrain, you should change the PTU fluid every 20,000 to 30,000 miles. The fluid sits very close to the exhaust, which causes it to “cook” into a thick, black sludge. Changing this fluid is a messy job, but it is much cheaper than replacing the entire unit. Using a high-quality 75W-140 synthetic gear oil can provide better thermal protection.
The cooling system also deserves your attention. The 3.5L EcoBoost uses an internal water pump driven by the timing chain. If the water pump fails, it can leak coolant directly into the oil pan, potentially destroying the engine. Regularly inspect your oil for a “milky” appearance and keep an eye on your coolant levels to catch this issue early.
Drivetrain Reinforcement: Transmission and Fluid Care
The 6F55 transmission in the 2019 Taurus SHO is a beefed-up version of Ford’s standard six-speed automatic. While it is robust, the added torque from a tune can put extra stress on the internal clutches. A transmission tune, often included with an engine tune, can sharpen the shift points and increase line pressure to prevent slipping.
Regular fluid exchanges are vital for the longevity of the 6F55. Don’t wait for the 100,000-mile mark suggested by the manual. If you are pushing the limits of your 2019 ford taurus sho performance, aim for a fluid change every 30,000 miles. Always use Mercon LV fluid to ensure the solenoids and torque converter operate correctly.
If you notice the transmission “hunting” for gears or shifting harshly, it might be time to reset the Adaptive Learning parameters. This can often be done with a standard OBD-II scan tool or by disconnecting the battery for a short period. This allows the transmission to relearn your driving style after you have installed performance modifications.
Optimizing Spark Plugs for High Boost
When you increase the boost on a turbocharged engine, the spark plugs have a harder time jumping the gap. This can lead to “spark blowout,” which feels like a stumble or hesitation under full throttle. To prevent this, most SHO enthusiasts switch to a colder heat range spark plug.
For a tuned SHO, a gap of 0.028 to 0.030 inches is generally recommended. The factory gap is often much wider, which is fine for stock boost but problematic for performance builds. When installing new plugs, always use a torque wrench to avoid stripping the threads in the aluminum cylinder head.
Check your spark plugs every 15,000 to 20,000 miles if you are running a high-output tune. The intense heat and pressure of a modified EcoBoost engine can wear down the electrodes faster than a naturally aspirated engine. Fresh plugs ensure that every drop of fuel is burned efficiently, maximizing your power output.
The Performance Package (PP) Advantage
Some 2019 models come equipped with the factory Performance Package. This package includes a shorter 3.16:1 final drive ratio, which helps the car accelerate faster off the line. It also adds a larger radiator, an oil cooler, and a dedicated “Track Mode” for the electronic stability control.
If your car does not have the Performance Package, you can still mimic its benefits. Adding an external oil cooler is a great DIY project that helps keep engine temperatures stable during spirited driving. You can also upgrade to the heavy-duty brake calipers found on the PP models for better clamping force.
The Performance Package also features 20-inch machined wheels with summer tires. If you are still running all-season tires, switching to a dedicated summer performance compound will be the single most noticeable change in how the car handles. Traction is the bottleneck for many AWD cars, and better rubber solves that problem instantly.
Frequently Asked Questions About 2019 Ford Taurus SHO Performance
Can I tune my 2019 Taurus SHO without voiding the warranty?
Technically, any modification can lead to a warranty claim denial if the dealer can prove the part caused the failure. However, many owners use “handheld” tuners that allow them to flash the car back to the stock settings before visiting the dealership. Always weigh the risks before modifying a car that is still under a service contract.
What is the best fuel to use for maximum performance?
The 2019 Taurus SHO is designed to run on 87-octane, but the ECU will pull timing to prevent knock, which reduces power. For the best 2019 ford taurus sho performance, you should always use 93-octane premium fuel. If you have a specific E30 or E50 tune, you can mix ethanol for even higher power gains, but this requires a specific calibration.
How do I know if my PTU is failing?
Common signs of PTU failure include a “burnt oil” smell coming through the vents, visible leaks of thick brown fluid, or a high-pitched whining noise from the center of the vehicle. If you see “pudding-like” gunk on the PTU casing, the seals have likely failed due to excessive heat. Immediate service is required to avoid a complete drivetrain failure.
Are downpipes worth the investment?
Upgraded downpipes replace the restrictive factory catalytic converters with high-flow units. This allows the turbos to spool much faster and reduces backpressure. While they offer great power gains, they often require a custom tune to prevent a “Check Engine” light and may not be legal in all states due to emissions regulations.
How much horsepower can the stock engine handle?
The 3.5L EcoBoost block is very strong. Most enthusiasts agree that the stock internals can safely handle up to 450-500 wheel horsepower. Beyond that point, you risk damaging the connecting rods or the pistons. For most daily drivers, a “Stage 2” setup with a tune and intercooler provides plenty of excitement without compromising reliability.
Final Thoughts on the Taurus SHO
The 2019 Ford Taurus SHO is a remarkable machine that represents the end of an era for American full-size performance sedans. By focusing on the weak points like the PTU and cooling system, you create a reliable foundation for more power. Whether you are just looking for a crisper throttle or a 400-horsepower beast, the steps outlined here will get you there.
Remember to always prioritize safety when working on your vehicle. Use high-quality jack stands, wear eye protection, and double-check your torque specs. A well-maintained SHO is a joy to drive and a formidable opponent on the highway. Enjoy the process of making this sleeper sedan truly your own!
Stay safe, keep the shiny side up, and enjoy the boost!
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