Jeep SRT 392 Specs: Unveiling the Performance Beast

Jeep SRT 392 Specs: Unveiling the Performance Beast jeeps.truckstrend.com

In the realm of high-performance SUVs, few names command as much respect and awe as the Jeep Grand Cherokee SRT. At its heart lies the formidable 392-cubic-inch HEMI V8 engine, an engineering marvel that transforms a family-friendly SUV into a road-devouring machine. The "Jeep SRT 392 Specs" aren’t just a list of numbers; they represent a carefully orchestrated symphony of power, handling, and sophisticated technology designed to deliver an exhilarating driving experience unlike any other.

For enthusiasts and potential owners alike, understanding the intricate specifications of the Jeep Grand Cherokee SRT 392 is crucial. It’s about appreciating the raw power beneath the hood, the precision engineering of its chassis, and the luxurious, tech-laden cabin that wraps it all together. This article will delve deep into every facet of the Jeep SRT 392’s specifications, offering a comprehensive guide to what makes this vehicle a true legend in the performance SUV segment. Whether you’re a long-time admirer or considering adding this beast to your garage, prepare to uncover the detailed blueprint of a modern icon.

Jeep SRT 392 Specs: Unveiling the Performance Beast

The Heart of the Beast: Engine and Powertrain Specifications

The defining characteristic of the Jeep Grand Cherokee SRT 392 is undoubtedly its powertrain. It’s here that the raw power translates into breathtaking acceleration and a thrilling exhaust note.

Engine:

• Type: 6.4-liter (392 cubic inch) HEMI V8, naturally aspirated.
• Configuration: V8, Overhead Valve (OHV).
• Block Material: Cast Iron.



• Head Material: Aluminum.
• Horsepower: Typically 470-475 hp at 6,000 rpm (exact figures can vary slightly by model year, with later models often having 475 hp).
• Torque: Typically 465 lb-ft at 4,300 rpm.
• Redline: Approximately 6,200 rpm.
• Fuel Requirement: Premium Unleaded (91+ Octane) is recommended for optimal performance.



• Fuel Economy (EPA Estimates): Approximately 13 MPG city / 19 MPG highway / 15 MPG combined. (Note: Real-world figures often vary based on driving style).

Transmission:

• Type: 8-speed TorqueFlite Automatic Transmission (8HP70).



• Features: Paddle shifters for manual control, rev-matching downshifts, multiple shift modes tied to drive modes (Auto, Sport, Track, Snow, Tow). This transmission is renowned for its quick, smooth shifts and ability to handle high torque.

Drivetrain:

• System: Quadra-Trac Active On Demand 4×4 System. This full-time four-wheel-drive system features a single-speed transfer case and continuously monitors wheel slip, instantly distributing torque to the wheels with the most grip.
• Rear Differential: Electronic Limited-Slip Differential (ELSD) for enhanced traction and stability, especially during hard acceleration or cornering.
• Front Differential: Open differential.

The synergy of the mighty HEMI engine, the precise 8-speed automatic, and the intelligent 4×4 system ensures that the SRT 392 can launch from a standstill with astonishing force, maintain grip in varied conditions, and deliver power efficiently to all four wheels.

Dynamics and Handling: Beyond Straight-Line Speed

While the engine steals the headlines, the SRT 392’s true prowess is also defined by its chassis and suspension, engineered to manage its immense power and provide a surprisingly agile driving experience for an SUV of its size.

Suspension:

• Type: SRT-tuned adaptive damping suspension with Bilstein shocks.
• Front: Independent short and long arm (SLA) with coil springs, active damping shock absorbers, and an isolated hydroformed steel cradle.
• Rear: Multi-link with coil springs, active damping shock absorbers, and a separate isolated steel cradle.
• Functionality: The adaptive damping system continuously adjusts damping force based on road conditions, driver input, and selected drive mode, allowing for a comfortable ride in "Auto" and a firm, responsive feel in "Track."

Braking System:

• Brand: Brembo high-performance braking system.
• Front: Large 15.0-inch (380 mm) vented discs with 6-piston fixed calipers.
• Rear: 13.8-inch (350 mm) vented discs with 4-piston fixed calipers.
• Performance: These brakes provide exceptional stopping power and fade resistance, crucial for a vehicle capable of such high speeds.

Steering:

• Type: Electric Power Steering (EPS) with performance tuning.
• Features: Variable effort, providing lighter steering at low speeds for maneuverability and a firmer, more direct feel at higher speeds for enhanced control.

Wheels and Tires:

• Wheels: Typically 20-inch x 10-inch forged aluminum wheels, often in a unique SRT design.
• Tires: Performance all-season or three-season tires, typically 295/45ZR20, designed for optimal grip on pavement.

Drive Modes (Selec-Track System):
The Selec-Track system allows the driver to tailor the vehicle’s dynamics to specific conditions and preferences, adjusting suspension stiffness, transmission shift points, throttle response, stability control, and the 4×4 system.

• Auto: Balanced performance for daily driving.
• Sport: Firmer suspension, quicker shifts, sharper throttle response.
• Track: Maximum performance, firmest suspension, most aggressive shifts, minimal electronic intervention.
• Snow: Optimized for low-traction conditions.
• Tow: Adjusts shift points and stability for towing.

Design and Aerodynamics: Form Meets Function

The SRT 392’s aggressive stance and refined interior are not just for show; they are integral parts of its performance identity, blending functionality with a commanding presence.

Exterior Design:

• Front Fascia: Unique SRT-specific front fascia with larger air intakes for improved cooling and aerodynamics.
• Grille: Distinctive blacked-out grille with honeycomb mesh.
• Hood: Performance hood with functional heat extractors (vents) to help dissipate engine heat.
• Lighting: Bi-xenon HID headlamps with signature LED daytime running lights, LED fog lamps.
• Exhaust: Dual-outlet exhaust system with large, polished tips, producing a characteristic HEMI growl.
• Wheels: Exclusive 20-inch wheel designs that emphasize its sporty nature.
• Aerodynamics: Subtle aerodynamic enhancements, including a rear spoiler and underbody panels, help reduce lift and improve stability at high speeds.

Interior Design and Technology:

• Seating: Performance-bolstered Nappa leather and suede seats (with available Laguna leather options) providing excellent support during spirited driving. Heated and ventilated front seats, heated rear seats.
• Steering Wheel: Flat-bottom, leather-wrapped steering wheel with paddle shifters and SRT branding.
• Instrumentation: Customizable 7-inch digital instrument cluster with SRT-specific gauges and performance readouts.
• Infotainment: Uconnect 8.4-inch touchscreen system with navigation, Apple CarPlay, Android Auto, and "SRT Performance Pages."
• SRT Performance Pages: A dedicated suite of digital gauges and timers accessible via the Uconnect system, allowing drivers to monitor engine output, G-forces, acceleration times (0-60, 0-100, quarter-mile), braking distance, and more.
• Audio System: Premium audio systems, often featuring Harman Kardon with multiple speakers and a subwoofer.
• Driver Assistance: Available features include adaptive cruise control, blind-spot monitoring, rear cross-path detection, forward collision warning, and parallel/perpendicular park assist.
• Materials: Carbon fiber accents, premium stitching, and brushed aluminum trim pieces elevate the cabin’s sporty and luxurious feel.

Performance Metrics and Real-World Experience

The culmination of these specifications is a vehicle that delivers astounding performance for its class, bridging the gap between a family SUV and a true sports car.

• 0-60 mph Acceleration: Approximately 4.4 – 4.8 seconds (depending on conditions and model year). This is remarkably quick for a vehicle weighing over 5,000 pounds.
• Quarter-Mile Time: Around 13.0 seconds at approximately 105-108 mph.
• Top Speed: Electronically limited to approximately 160 mph (257 km/h).
• Braking (60-0 mph): Approximately 116-120 feet, showcasing the effectiveness of the Brembo system.
• Lateral Acceleration: Capable of generating over 0.90 G on a skidpad, demonstrating surprising cornering grip for an SUV.
• Towing Capacity: Despite its performance focus, the Grand Cherokee SRT 392 retains a respectable towing capacity, typically up to 7,200 pounds, making it a highly versatile vehicle.

In real-world driving, the SRT 392 offers a dual personality. In "Auto" mode, it’s a comfortable, spacious SUV suitable for daily commutes and family trips. The ride is firm but compliant, and the engine is docile. Switch to "Sport" or "Track" mode, however, and the beast awakens. The exhaust note deepens, the throttle becomes hair-trigger sensitive, and the suspension firms up, transforming it into a thrilling performance machine that corners flat and accelerates with exhilarating force.

Ownership Considerations and Practical Advice

Owning a high-performance vehicle like the Jeep Grand Cherokee SRT 392 comes with its unique set of considerations.

Maintenance:

• Specialized Servicing: Due to its high-performance components (engine, transmission, brakes, adaptive suspension), regular maintenance should ideally be performed by dealerships or specialized mechanics familiar with SRT vehicles.
• Oil Changes: Regular synthetic oil changes are critical.
• Brakes: Brembo pads and rotors are high-performance but can be more expensive to replace than standard components.
• Tires: Performance tires will wear faster than standard SUV tires, especially with spirited driving, and are more expensive to replace.

Fuel Costs:

• As noted, premium fuel is recommended, and the lower EPA fuel economy figures mean higher operating costs, especially with city driving or aggressive acceleration.

Insurance:

• Due to its high performance, higher MSRP, and potential for higher repair costs, insurance premiums for the SRT 392 are generally higher than for standard SUVs.

Resale Value:

• The Grand Cherokee SRT tends to hold its value relatively well compared to other large SUVs, thanks to its niche appeal and performance pedigree.

Challenges:

• Fuel Consumption: This is arguably its biggest practical drawback.
• Size: While maneuverable for its size, it is still a large SUV, which can be a consideration for parking and navigating tight spaces.
• Visibility: Rear visibility can be somewhat limited due to its design.

Tips for Owners:

• Read the Manual: Fully understand the Selec-Track system and its various modes to get the most out of the vehicle and drive safely in different conditions.
• Tire Pressure: Maintain correct tire pressure, especially given the performance nature of the tires.
• Driving Style: While it’s tempting to always drive in "Track" mode, be mindful of road conditions and traffic. Use the appropriate drive mode for safety and efficiency.
• Protect Your Investment: Consider paint protection film (PPF) or ceramic coating to preserve the exterior finish.

Jeep Grand Cherokee SRT 392: Pricing Overview

The "specs" themselves don’t have a price, but the vehicle embodying these specifications does. The Jeep Grand Cherokee SRT 392 was primarily offered from the 2012 model year through 2021 (before the introduction of the new WK2 generation and the discontinuation of the 392 in favor of the Hellcat-powered Trackhawk, and then the return of the 392 in the new WL generation as a dedicated trim). Pricing varies significantly based on model year, mileage, condition, and optional features.

Feature/Year	Typical Original MSRP (USD)	Typical Used Price Range (USD – current market)	Notes
2012-2013	$54,000 – $60,000	$18,000 – $28,000	Early models, still strong performers.
2014-2016	$63,000 – $70,000	$28,000 – $38,000	Mid-cycle refresh, 8-speed transmission introduced in 2014.
2017-2018	$67,000 – $75,000	$38,000 – $48,000	Minor updates, continued strong performance.
2019-2021	$70,000 – $80,000	$48,000 – $65,000+	Latest WK2 generation models, highly sought after.
New 2022+ Grand Cherokee SRT 392	$78,000 – $85,000+	(Newer models hold value well)	The 392 engine returned for the new WL generation Grand Cherokee, positioned below the Trackhawk.
Average Used	N/A	$30,000 – $55,000	Broad range reflecting condition, mileage, and specific year.

Note: Prices are estimates and subject to market fluctuations, regional differences, and vehicle-specific conditions. Used prices are as of late 2023/early 2024.

Frequently Asked Questions (FAQ)

Q1: What does "392" mean in Jeep SRT 392?
A1: "392" refers to the engine’s displacement in cubic inches. The engine is a 6.4-liter HEMI V8, which translates to approximately 392 cubic inches.

Q2: Is the Jeep SRT 392 a Hellcat?
A2: No, the Jeep Grand Cherokee SRT 392 is not a Hellcat. The Hellcat engine is a supercharged 6.2-liter HEMI V8, which powers the more extreme Jeep Grand Cherokee Trackhawk. The SRT 392 uses a naturally aspirated 6.4-liter HEMI V8.

Q3: What’s the main difference between the Grand Cherokee SRT and the Trackhawk?
A3: The primary difference is the engine. The SRT 392 uses the naturally aspirated 6.4L HEMI (475 hp), while the Trackhawk uses the supercharged 6.2L Hellcat HEMI (707 hp). This results in significantly different performance figures, with the Trackhawk being much faster. They also have different brake systems, suspension tuning, and styling cues.

Q4: What kind of fuel does the Jeep SRT 392 require?
A4: Jeep recommends premium unleaded gasoline (91 octane or higher) for optimal performance from the 6.4L HEMI engine.

Q5: Can the Jeep Grand Cherokee SRT 392 go off-road?
A5: While it is a Jeep and has a 4×4 system, the Grand Cherokee SRT 392 is primarily designed as a street-performance SUV. Its low-profile performance tires, stiff suspension, and lower ground clearance are not suited for serious off-roading. It can handle light trails and adverse weather conditions on paved roads, but it’s not a rock crawler.

Q6: Is the Jeep SRT 392 a good daily driver?
A6: Yes, it can be a good daily driver. In "Auto" mode, the ride is relatively comfortable, and the interior is spacious and luxurious. However, be prepared for higher fuel costs due to its powerful engine and lower fuel economy, and potentially higher maintenance and insurance costs compared to a standard SUV.

Q7: What are the key performance numbers for the SRT 392?
A7: The Jeep Grand Cherokee SRT 392 typically achieves 0-60 mph in about 4.4-4.8 seconds, completes the quarter-mile in roughly 13.0 seconds, and has an electronically limited top speed of around 160 mph.

Conclusion

The Jeep Grand Cherokee SRT 392 stands as a testament to American muscle, blending the practicality of a full-size SUV with the heart-pounding performance of a sports car. Its specifications, from the mighty 6.4-liter HEMI V8 to the adaptive Bilstein suspension and Brembo brakes, are meticulously engineered to deliver a thrilling and engaging driving experience. It’s a vehicle that doesn’t just transport; it exhilarates.

Understanding the "Jeep SRT 392 Specs" is to appreciate the nuanced engineering that allows this powerful machine to accelerate with such ferocity, handle with surprising agility, and stop with incredible precision. While it demands respect in terms of fuel consumption and maintenance, the rewards of its performance and versatility are undeniable. For those seeking an SUV that refuses to compromise on excitement, the Jeep Grand Cherokee SRT 392 remains a captivating and formidable choice, a true performance beast with a practical side.