Ram TRX: 702 HP Supercharged Truck & Extreme Off-Road Velocity
The Ram TRX is not merely a pickup truck—it is a 702 hp off-road dominator engineered to conquer deserts, dunes, and highways with equal ferocity. Powered by a supercharged 6.2-liter HEMI V8 producing 702 horsepower and 650 lb-ft of torque, the TRX was built to dethrone the Ford F-150 Raptor as the ultimate high-speed off-road truck. With a 0-60 mph time of 4.5 seconds, a top speed of 118 mph, and suspension designed to absorb massive jumps, this is the engineering story of how Ram created a desert-running monster.
1. Overview: The Raptor Killer
- What: High-performance off-road pickup truck
- Who: Ram Trucks / Stellantis
- When: Introduced 2020; production ends 2025 (last V8 model)
- Where: Assembled at Sterling Heights Assembly Plant, Michigan
- Why: To compete with Ford F-150 Raptor and create the ultimate factory off-road truck
- How: Hellcat-derived supercharged V8, 11.8 inches of suspension travel, and 35-inch tires
"The TRX was designed to be the most powerful, most capable off-road truck ever built," said Mike Koval Jr., Ram Brand Chief Executive. "We took the Hellcat engine, engineered a suspension system that could handle 702 hp off-road, and created a truck that dominates where others fear to tread." [Source: Ram / Stellantis]
2. Top Speed & Performance Metrics
The TRX delivers performance numbers that are remarkable for a 6,500 lb off-road truck.
- Top Speed: 118 mph (190 km/h) – electronically limited (tire rating)
- Horsepower: 702 hp at 6,100 rpm
- Torque: 650 lb-ft at 4,800 rpm
- 0-60 mph: 4.5 seconds
- 0-100 mph: 10.5 seconds
- Quarter Mile: 12.9 seconds at 108 mph
- Curb Weight: 6,500 lbs (2,950 kg)
- Power-to-Weight Ratio: 9.3 lbs per hp
- Towing Capacity: 8,100 lbs
- Payload Capacity: 1,310 lbs
- Ground Clearance: 11.8 inches
- Suspension Travel: 13 inches (front) / 14 inches (rear)
Analysis: The TRX's 4.5-second 0-60 mph time is remarkable for a 6,500 lb truck—quicker than many sports cars. The top speed is limited to 118 mph due to the 35-inch all-terrain tires, but the truck is capable of higher speeds with appropriate tires. The real engineering achievement is not straight-line speed, but the ability to maintain high speeds over rough terrain.
3. Powertrain & Engine System
Engine Configuration — Hellcat V8 for Truck Duty
The TRX uses the same supercharged 6.2-liter HEMI V8 found in the Dodge Challenger Hellcat, but with truck-specific calibration and cooling.
- Displacement: 6.2 liters (376 cu in)
- Induction: 2.4L IHI supercharger with 11.6 psi boost
- Redline: 6,200 rpm
- Configuration: 90-degree V8, cast iron block with aluminum heads
- Cooling: Dedicated transmission, engine oil, and supercharger coolers
- Air Intake: Functional hood scoop with integrated water separator
- Unique Feature: Off-road calibration ensures consistent power in high-heat, low-speed conditions
Transmission & Drivetrain — Heavy-Duty AWD
The TRX uses a heavy-duty 8-speed automatic transmission and a full-time all-wheel-drive system with a locking rear differential.
- Transmission: TorqueFlite 8HP95 8-speed automatic (same as Trackhawk)
- Drivetrain: Full-time all-wheel drive (AWD) with 2.64:1 low range
- Transfer Case: BorgWarner 48-13 with torque vectoring
- Differentials: Electronic locking rear differential, front electronic limited-slip
- Drive Modes: Auto, Sport, Tow, Snow, Baja, Rock, Mud/Sand
- Launch Control: Off-road optimized for sand and loose surfaces
"The TRX's drivetrain was engineered to survive desert running," said a Ram powertrain engineer. "We upgraded the transmission, transfer case, and axles to handle 702 hp in extreme off-road conditions. This isn't just a Hellcat in a truck; it's a complete re-engineering of the chassis." [Source: Ram Powertrain Engineering]
4. Aerodynamics & Velocity Engineering
The TRX's aerodynamic challenge was balancing cooling, stability, and off-road capability.
- Drag Coefficient: 0.45 (estimated—typical for full-size truck)
- Front Fascia: Unique TRX design with massive grille openings for cooling
- Functional Hood Scoop: 1,800 cfm airflow to the supercharger with water separator
- Widebody Design: 8 inches wider than standard Ram 1500 for stability
- Rear Spoiler: Roof-mounted spoiler with integrated lip
- Underbody: Skid plates protect components, but not optimized for aerodynamics
- Flared Fenders: Accommodate 35-inch tires while managing airflow around wheels
Insight: The TRX's aerodynamic engineering prioritized cooling and stability over drag reduction. The massive grille and hood scoop are essential for keeping the Hellcat V8 cool during high-speed desert runs. The widebody design is not just cosmetic; it provides the track width necessary for stability at 118 mph over rough terrain.
5. Comparison: Ram TRX vs Off-Road Rivals
To understand the TRX's position, it must be compared to its primary competitor: the Ford F-150 Raptor R.
| Feature | Ram TRX | Ford F-150 Raptor R | Ford F-150 Raptor (Standard) |
|---|---|---|---|
| Power | 702 hp | 700 hp | 450 hp |
| Torque | 650 lb-ft | 640 lb-ft | 510 lb-ft |
| Engine | 6.2L Supercharged V8 | 5.2L Supercharged V8 | 3.5L Twin-Turbo V6 |
| 0-60 mph | 4.5 sec | 4.6 sec | 5.2 sec |
| Suspension Travel | 13 in front / 14 in rear | 13 in front / 14 in rear | 13 in front / 14 in rear |
| Tires | 35-inch Goodyear Territory MT | 35-inch BFGoodrich KO2 | 35-inch BFGoodrich KO2 |
| Ground Clearance | 11.8 in | 12.0 in | 12.0 in |
| Towing Capacity | 8,100 lbs | 8,500 lbs | 8,200 lbs |
| Price (Base) | $87,000 | $86,000 | $78,000 |
Context: The TRX and Raptor R are remarkably similar in performance, with the TRX offering slightly more power and a larger V8 displacement. The Raptor R has a slight edge in ground clearance and towing, while the TRX's Hellcat engine delivers a more traditional American V8 experience. Both represent the pinnacle of factory off-road trucks.
6. Technical Breakdown: Desert-Running Chassis
The TRX's chassis and suspension are the key to its off-road capability, designed to absorb massive impacts at high speeds.
| Specification | Ram TRX Data |
|---|---|
| Chassis Type | Steel ladder frame with high-strength steel |
| Suspension (Front) | Independent with Bilstein Black Hawk e2 adaptive dampers |
| Suspension (Rear) | 5-link coil spring with Bilstein Black Hawk e2 adaptive dampers |
| Dampers | Bilstein Black Hawk e2 (accelerometer-based, adjusts 500 times per second) |
| Suspension Travel | 13 inches front / 14 inches rear |
| Brakes (Front) | Brembo 6-piston fixed calipers with 15.1-inch rotors |
| Brakes (Rear) | Brembo 4-piston fixed calipers with 14.4-inch rotors |
| Wheels | 18-inch beadlock-capable forged aluminum |
| Tires | Goodyear Wrangler Territory MT 35-inch (325/65R18) |
| Skid Plates | Full front, engine, transmission, and transfer case protection |
7. Engineering Insight: Suspension That Jumps
The TRX's Bilstein Black Hawk e2 dampers are the most sophisticated ever fitted to a production truck, designed specifically for high-speed off-road running.
Why this matters: Traditional off-road suspensions are optimized for crawling or moderate speeds. The TRX was designed for Baja-style desert running—sustained high speeds over rough terrain, including jumps. The Bilstein dampers use accelerometers to read terrain and adjust damping in milliseconds, keeping the truck stable over whoops and landings.
The suspension travel of 13 inches front and 14 inches rear allows the TRX to absorb impacts that would destroy a standard truck. Combined with the 35-inch tires and 11.8 inches of ground clearance, the TRX can maintain 70+ mph over terrain that would require a normal truck to slow to 20 mph.
"The TRX was engineered to jump," said a Ram chassis engineer. "We tested the suspension at full compression and extension repeatedly to ensure durability. The Bilstein dampers are calibrated to handle landing from jumps without bottoming out. It's a truck that can fly." [Source: Ram Chassis Engineering]
For enthusiasts interested in other extreme off-road vehicles, the Jeep Wrangler 392 offers a different approach: rock-crawling capability with V8 power.
8. Why It Matters
The Ram TRX matters for three reasons. First, it proved that American truck manufacturers could build factory off-road vehicles with supercar power. Second, it demonstrated that a truck could combine desert-running capability with luxury appointments. Third, it represented the peak of the supercharged V8 truck era before the industry shifted toward electrification.
With its 702 hp, 4.5-second 0-60 time, and Baja-ready suspension, the TRX redefined what a production truck could do. It was not a compromise; it was a statement that off-road capability and supercar performance could coexist. As Ram transitions to electric trucks with the Ram Revolution EV, the TRX stands as a monument to the supercharged V8 era—a final roar before the industry goes silent.
For those tracking the evolution of American performance, the Tesla Cybertruck and Dodge Charger Daytona EV represent the electric future, while the TRX and Demon 170 represent the peak of internal combustion.
9. Frequently Asked Questions (FAQ)
How much horsepower does the Ram TRX have?
The Ram TRX produces 702 horsepower and 650 lb-ft of torque from its supercharged 6.2-liter HEMI V8.
Is the TRX faster than the Ford Raptor R?
The TRX and Raptor R are nearly identical in performance. The TRX has 2 more horsepower (702 vs 700) and a slightly quicker 0-60 time (4.5 sec vs 4.6 sec), but the differences are negligible in real-world driving.
What is the top speed of the Ram TRX?
The Ram TRX has an electronically limited top speed of 118 mph due to the 35-inch all-terrain tires. With appropriate tires, the truck is capable of higher speeds.
Does the Ram TRX have a HEMI engine?
Yes. The TRX uses the supercharged 6.2-liter HEMI V8, commonly known as the Hellcat engine, shared with the Dodge Challenger and Charger Hellcat models.
Can the Ram TRX tow?
Yes. The TRX has a towing capacity of 8,100 lbs and a payload capacity of 1,310 lbs, despite its off-road focus.
Is the Ram TRX still in production?
The TRX will end production in 2025 as Ram transitions to electric trucks. A final edition, the TRX Final Edition, was announced to mark the end of the supercharged V8 era.
10. The King of Desert Trucks
The Ram TRX is more than a truck; it is a statement. It proved that a factory-built truck could deliver supercar acceleration, Baja-ready suspension, and daily-driver practicality. With its 702 hp Hellcat V8, 14 inches of suspension travel, and 35-inch tires, the TRX was engineered to dominate where others feared to tread.
As the automotive industry shifts toward electrification, the TRX stands as a monument to the supercharged V8 era. It is the ultimate expression of American excess—a 6,500 lb truck that can outrun a Porsche 911 and jump sand dunes. And for those who remember the golden age of the Hellcat, the TRX remains a legend.
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