The Toyota Conquest Engine, a sporty coupe from the 1980s, was a frontrunner in that arena. But what made it tick? The answer lies under the hood – the mighty Toyota Conquest engine.This wasn’t your average engine. Though a Toyota by name, the Conquest was actually a rebranded Mitsubishi. But don’t let that confuse you! The engine, the Mitsubishi Sirius (or Astron), was a marvel of engineering. Packing a 2.0-liter turbocharged punch, it delivered surprising power in a compact package.
Think of it this way: this engine wasn’t just about horsepower numbers (which were impressive at 164 hp, later bumped to 178 hp). It was about the feeling. The turbocharger gave the Conquest a surge of power, launching it from 0 to 60 mph in a quick 7.6 seconds. Back in the day, that was enough to leave many competitors in the dust!
But power wasn’t the only story. The engine responded smoothly, with minimal turbo lag, making the power delivery predictable and exciting. The 5-speed manual transmission was the perfect partner, offering short, precise throws for crisp gear changes and maximizing control.
This blog post will delve deeper into the Conquest engine, exploring its history, specifications, and the unique character it brought to the car. We’ll also cover maintenance tips to keep this legendary engine running strong and answer the question: is a Toyota Conquest with this engine the right choice for you? So, buckle up and get ready to explore the world of the Toyota Conquest engine!

Table of Contents
A Blast from the Past: The History of the Toyota Conquest Engine
The Toyota Conquest Engine wasn’t always a Toyota. Originally, it was the Mitsubishi Celeste and its sporty sibling, the Mitsubishi Starion, introduced in the late 1970s. These coupes aimed to compete in the growing market for performance-oriented Japanese imports. Toyota, recognizing the potential, partnered with Mitsubishi to rebadge the car as the Toyota Conquest for the North American market from 1986 to 1989.
The Conquest came in two distinct flavors: the CSX, a more affordable option with a four-cylinder engine, and the TSI, the true performance king with a turbocharged powerplant. That’s where our focus lies today – the mighty engine that propelled the TSI to automotive glory.
The Heart of the Beast: Unveiling the TSI Engine
The engine that made the Toyota Conquest engine TSI a legend was the Mitsubishi Sirius (or Astron as it was sometimes called). This 2.0-liter turbocharged inline-four was a masterpiece of engineering, packing a serious punch in a relatively small package.
Here’s a closer look at the specs that made this engine a winner:
- Engine Type: 2.0L Turbocharged Inline-4
- Horsepower: 164 hp (later model years bumped this up to 178 hp)
- Torque: 181 lb-ft
- Transmission: 5-speed manual (the only option available)
This combination delivered a thrilling driving experience. The turbocharger provided a noticeable surge of power, pushing the Conquest TSI from 0 to 60 mph in a respectable 7.6 seconds. Back in the day, that was enough to leave many competitors in the dust.
Beyond the Numbers: Performance Characteristics of the Conquest Engine
The toyota Conquest engine wasn’t just about raw power figures. It had a character all its own. The turbo lag was minimal, meaning the power came on smoothly and predictably. Once the boost kicked in, the car surged forward with exhilarating force.
The 5-speed manual transmission was a perfect match for this engine. The throws were short and precise, allowing for crisp gear changes and maximizing the driving experience.
Fueling the Conquest: Considerations and Tips
The Conquest engine, like most performance-oriented engines, craved premium fuel. Opting for 91 octane or higher will ensure optimal performance and prevent knocking.
Regular maintenance is crucial for keeping your Conquest engine running strong. Here are some key maintenance tips:
- Oil changes: Stick to the recommended oil change intervals as specified in your owner’s manual. Synthetic oil is a great choice for performance engines.
- Air filter: A clean air filter ensures proper airflow into the engine, maximizing power and efficiency. Replace the air filter regularly.
- Spark plugs: Use high-quality spark plugs specifically designed for your engine. Replace them according to the manufacturer’s recommendations.
- Turbocharger care: While robust, the turbocharger benefits from letting the engine cool down slightly before shutting it off after a spirited drive.

The Legacy of the Conquest Engine: A Timeless Classic
The Toyota Conquest engine, a vibrant coupe that roared through the 1980s, wasn’t just a car – it was an experience. But what truly set it apart? The answer lies beneath the hood: the legendary Conquest engine.
This wasn’t your average engine. Though it resided in a Toyota, it was actually a Mitsubishi masterpiece – the Mitsubishi Sirius (or Astron). This 2.0-liter turbocharged marvel packed a surprising punch, defying its size with impressive power. Numbers don’t tell the whole story, though. At 164 horsepower (later boosted to 178 hp), it wasn’t just the muscle that mattered.
The Conquest engine was about the feeling. The turbocharger unleashed a surge of power, propelling the car from 0 to 60 mph in a swift 7.6 seconds. Back then, that left many competitors in the dust! But power wasn’t the only thrill. The engine responded smoothly with minimal turbo lag, making power delivery predictable and exciting. The 5-speed manual transmission was the perfect dance partner, offering short, precise throws for crisp gear changes and maximizing control.
The Conquest’s legacy isn’t confined to its power. It was a car built for enthusiasts, a testament to the joy of driving. It offered a thrilling combination of affordability, handling, and raw power, capturing the hearts of drivers in the 80s.
Today, these well-maintained Conquests are sought-after classics. Owning one is like owning a piece of automotive history. However, remember, this is a performance car, and like any high-performance machine, it demands a bit more attention than your average daily driver.
The Conquest engine’s legacy transcends its presence in the car itself. It’s a reminder that engineering brilliance can create timeless classics. It’s a testament to the enduring appeal of exhilarating driving experiences, a reminder that sometimes, the most exciting journeys come from revisiting the classics.
So, is the Toyota Conquest engine right for you?
If you’re looking for a reliable, well-maintained Conquest, you’re in for a treat. This car offers a unique driving experience that’s sure to put a smile on your face. However, it’s important to remember that it’s a performance car and requires a bit more attention compared to a daily driver.
Conclusion:
The Toyota Conquest engine, powered by the unforgettable Mitsubishi Sirius engine, may no longer be rolling off factory lines, but its legacy as a driver’s dream lives on. This car wasn’t just about speed; it was about the pure joy of driving. The Conquest offered a thrilling combination of power, handling, and affordability, capturing the hearts of enthusiasts in the 80s.
Today, these well-maintained Conquests are sought-after classics. Owning one means experiencing a piece of automotive history. However, keep in mind that this is a performance car, and like any high-performance machine, it requires a bit more attention than your average daily driver.
So, is a Toyota Conquest engine with this legendary engine the right choice for you? If you crave a unique driving experience, a car that responds to your touch and delivers an exhilarating ride, then the Conquest might be your perfect match. Just be prepared to give it the love and care it deserves.
Whether you decide to own one or simply appreciate its place in automotive history, the Toyota Conquest engine remains a testament to the ingenuity of engineering. It’s a reminder that sometimes, the most exciting journeys come from revisiting the classics.
Frequently Asked Questions (FAQs)
What kind of engine was in the Toyota Conquest engine?
The Conquest had a 2.0-liter turbocharged inline-4 engine called the Mitsubishi Sirius (or Astron) built by Mitsubishi, even though it was a Toyota by name.
How much horsepower did the toyota Conquest engine have?
Early Conquest models had 164 horsepower, while later ones got a bump to 178 hp.
Was the toyota Conquest engine fast?
For its time, yes! The turbocharger gave it a quick burst of power, launching the car from 0 to 60 mph in around 7.6 seconds, which was impressive back in the 1980s.
What was it like to drive a car with the toyota Conquest engine?
It was exciting! The turbo provided a noticeable surge of power, and the engine responded smoothly with minimal lag. The 5-speed manual transmission offered precise control, making the driving experience engaging.
What kind of gas did the Conquest engine need?
For optimal performance and to prevent knocking, premium fuel with an octane rating of 91 or higher is recommended.
How do I maintain a Conquest engine?
Regular maintenance is key! Stick to the oil change intervals in your owner’s manual and consider using synthetic oil. Replace the air filter and spark plugs regularly, and let the engine cool down slightly before shutting it off after a hard drive to care for the turbocharger.
Is the Conquest engine reliable?
Yes, with proper care. These engines were known for their durability, but remember, it’s a performance car and may require more attention than a typical daily driver.
Are Toyota Conquests with this engine expensive?
Well-maintained Conquests can be collectible, so the price can vary depending on the condition and specific model year.
Is a Toyota Conquest with this engine a good car for me?
If you love classic sports cars and want a thrilling driving experience, then a Conquest could be a great choice. However, be prepared for the responsibility of caring for a performance car.
Where can I learn more about the Toyota Conquest engine?
Car enthusiast forums and online resources dedicated to classic cars are great places to find more information about the Conquest engine and the car itself.