Jeep WK Grand Cherokee SRT8 World Premiere

By Jeep Experts

Welcome to the archived characteristic of the world premiere of the  WK Generation Jeep Grand Cherokee SRT8. Want to characteristic your Jeep? Please get in contact with us and inform us about it!

Jeep® Introduces All-new 2006 Grand Cherokee SRT8:
The Quickest, Most Powerful Jeep Vehicle Ever


With a 6.1-liter SRT HEMI® V-8, Jeep® Grand Cherokee SRT8 affords final SUV efficiency

0-60 mph in below 5 seconds (moist or dry) – faster than Porsche Cayenne Turbo, BMW X5

Top velocity: 150 MPH+

Proven Jeep functionality with SRT efficiency offers astonishing on-road and all-weather capacity and energy

Jeep Grand Cherokee SRT8 the primary four-wheel drive SRT automobile, the primary Jeep-branded SRT automobile

2006 SRT8 Grand Cherokee proven in Steel Blue Metallic Clear Coat

The all-new 2006 Jeep Grand Cherokee SRT8 combines these qualities with Street and Racing Technology’s (SRT) balanced strategy to efficiency, ensuing within the quickest, strongest Jeep automobile ever created, and the last word efficiency sport-utility automobile.

“Jeep autos prepared the ground in efficiency and flexibility,” stated Jeff Bell, Vice President, Jeep, Chrysler Group. “The all-new 2006 Jeep Grand Cherokee SRT8 provides a brand new dimension to efficiency and flexibility – and worth. With its SRT-engineered 6.1-liter HEMI® engine and specifically developed full-time four-wheel drive system, the 2006 Jeep Grand Cherokee SRT8 offers beautiful efficiency in a tremendous number of driving situations.

“The all-new 2006 Jeep Grand Cherokee SRT8 marries Jeep functionality with SRT efficiency to create a automobile that can depart in its mud opponents that value twice the worth,” Bell added.

Powered by a 6.1-liter HEMI producing 420 horsepower (90 extra horses and 27 % extra energy than the 5.7-liter HEMI-equipped 2006 Jeep Grand Cherokee) and 420 lb.-ft. of torque, the all-new 2006 Jeep Grand Cherokee SRT8’s efficiency numbers embody 0-60 mph in below 5 seconds, 0-100-0 mph within the low 19-second vary, and 60-0 mph braking distance of roughly 125 toes.

“When we got down to create the primary Jeep-branded SRT automobile, the 2006 Jeep Grand Cherokee introduced us with an extremely succesful start line,” stated Dan Knott, Director – Street and Racing Technology, Chrysler Group. “With an infusion of SRT DNA, the 2006 Jeep Grand Cherokee SRT8 is the brand new benchmark efficiency SUV. It has the uncooked energy to outperform the Porsche Cayenne Turbo, whereas offering distinctive experience and dealing with, world-class braking, race-inspired inside appointments and purposeful, performance-oriented exterior enhancements.”

Four-Wheel-Drive System

To create the primary SRT automobile with full-time four-wheel drive, SRT engineers developed a drive system that was light-weight, but strong and dependable sufficient to deal with large quantities of horsepower and torque from the 2006 Jeep Grand Cherokee SRT8’s powertrain. One a part of the equation was to create a brand new switch case, combining housing elements from two present models with the upgrades wanted to make it SRT-capable.

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SRT engineers opted to make use of the entrance half of a Jeep switch case chosen for its functionality and light-weight weight. It was mated to the rear half of a heavier-duty case, chosen for its ruggedness and talent to deal with the digital full-time four-wheel drive system elements. The switch case output shaft was upgraded to deal with excessive torque generated by the SRT 6.1-liter HEMI.

The result’s the all-new 2006 Jeep Grand Cherokee SRT8’s distinctive switch case, which offers the mandatory power-handling capabilities for the Grand Cherokee SRT8 whereas weighing 60 kilos lower than a Jeep heavy-duty case.

Under regular driving situations, from 5 % to 10 % of torque is directed to the entrance wheels, however as a lot of the 6.1-liter HEMI’s torque as wanted could be directed ahead when extra traction or stability is required. Remaining torque is distributed through a heavy-duty driveshaft designed for the European Jeep Grand Cherokee diesel mannequin, to a Dana 44 rear differential upgraded with a bigger ring gear inside a brand new axle housing.

“We wished the acceleration that solely four-wheel-drive can present,” stated Knott. “Our purpose for the 2006 Jeep Grand Cherokee SRT8 was to have a well-balanced automobile with a excessive fun-to-drive quotient. The SRT-developed digital four-wheel drive system is completely suited to this.”


Providing horsepower and torque to the distinctive SRT four-wheel drive system is a specifically tuned model of the brand new 6.1-liter SRT HEMI engine. Inspired by the unique household of HEMIs, the SRT 6.1-liter HEMI employs the namesake hemispherical combustion chambers that present energy and effectivity, whereas retaining traditional HEMI visible cues together with the orange-painted cylinder block and black valve covers.

With the Chrysler Group’s clear and environment friendly 5.7-liter HEMI as a place to begin, SRT powertrain engineers developed 90 extra horsepower over the Jeep Grand Cherokee’s 5.7-liter HEMI by including extra cubic inches, growing the compression ratio, redesigning the cylinder head, consumption and exhaust programs for elevated circulate, and growing engine velocity.

For extra displacement, SRT engineers bored out the diameter of the cylinders within the HEMI by 3.5 millimeters every so as to improve the whole displacement to six.1 liters from 5.7 liters.

Compression ratio was additionally elevated to 10.3:1 from 9.6:1, growing engine effectivity and energy.

Engine respiration was elevated with new higher-flow cylinder heads, a specifically designed consumption manifold and fresh-air induction system (which permits water-fording functionality of as much as 19 inches), and exhaust headers with particular person tubes encased in a chrome steel shell. All are distinctive to the 6.1-liter HEMI engine. Larger-diameter valves and reshaped ports within the heads permit for maximized air circulate. The consumption manifold was designed with larger-diameter and shorter runners for higher-speed tuning. Exhaust is routed by means of a large-diameter (2.75-inch vs. 2.5-inch) exhaust system with 4-inch chrome ideas.

Grand Cherokee SRT8 sound byte (1 MB wav file)

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To additional improve horsepower, performance-oriented camshaft profiles had been developed to permit extra air out and in of the cylinders, in addition to handle a better engine velocity. SRT engineers elevated the HEMI’s peak energy output engine velocity almost 20 % to six,000 revolutions per minute (rpm) from 5,000 rpm. Intake and exhaust valve stems are hole, and the exhaust valve stems are crammed with sodium to assist dissipate warmth extra effectively.

The high-performance SRT 6.1-liter HEMI is strengthened with redesigned elements, together with a strengthened engine block, cast metal crankshaft, high-strength powdered-metal connecting rods, floating-pin pistons (cooled by oil squirters), and an oil pan modified to handle oil return to the pan sump at excessive engine speeds.

Power from the SRT 6.1-liter HEMI is distributed by means of a particular torque converter to an SRT-upgraded A580 five-speed automated transmission. Torque is then despatched to entrance and rear differentials by means of a specifically designed switch case.


Ride and Handling

The all-new 2006 Jeep Grand Cherokee SRT8 is endowed with the signature SRT attribute of world-class experience and dealing with throughout a dynamic vary.

Chassis setup is geared toward balanced efficiency with SRT-tuned dampers, distinctive sway bars and specifically tailor-made spring charges and suspension bushings. New entrance suspension knuckles characteristic a camber angle calibrated for optimum suspension efficiency. The experience peak of the 2006 Jeep Grand Cherokee SRT8 is one inch decrease than the Jeep Grand Cherokee, which lowers aerodynamic drag and contributes to the automobile’s aggressive stance.

To meet or exceed dealing with and security standards, the Electronic Stability Program (ESP) was specifically calibrated for the 2006 Jeep Grand Cherokee SRT8.

Further contributing to its aggressive stance, the all-new 2006 Jeep Grand Cherokee SRT8 is fitted with distinctive cast 20-inch five-spoke aluminum wheels shod with high-performance Goodyear W-rated four-season tires with run-flat functionality. Tire dimensions are 255/45/20 within the entrance, and a large 285/40/20 within the rear.

With an optionally available hitch bundle obtainable from Mopar, the all-new 2006 Jeep Grand Cherokee SRT8 is able to towing as much as 3,500 kilos.


The braking system of the all-new 2006 Jeep Grand Cherokee SRT8 is designed to supply excellent functionality as a counterpoint to the automobile’s superior launch and acceleration.

All 4 wheels characteristic four-piston efficiency brake calipers developed by Brembo, completed in gloss black. Under braking, these calipers clamp down on 360 x 32mm vented rotors up entrance, with 350 x 28mm vented rotors within the rear.


SRT’s credo calls for purposeful exterior enhancements that contribute to efficiency and resonate with the model character. The all-new 2006 Jeep Grand Cherokee SRT8’s lowered, aggressive stance exhibits its unmistakable Jeep identification endowed with SRT DNA.

An all-new entrance fascia makes use of aero enhancements to scale back carry and drag, whereas offering adequate air circulate to chill the 6.1-liter HEMI engine. The entrance fascia additionally helps improve brake-system cooling by means of built-in air ducts. In the rear, an all-new fascia incorporates an aggressive middle cutout to accommodate twin 4-inch exhaust ideas.

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Another purposeful enhancement is sill extensions to assist create downforce. The roof rack obtainable on the Jeep Grand Cherokee just isn’t obtainable on the all-new 2006 Jeep Grand Cherokee SRT8.

Four exterior colours can be found: Bright Silver, Brilliant Black, Steel Blue and Inferno Red.


The all-new 2006 Jeep Grand Cherokee SRT8 cabin is distinguished by power-adjustable, deeply sculpted efficiency seats within the entrance full with uniquely patterned efficiency suede inserts to carry occupants throughout aggressive maneuvering.

Interior accents embody a “carbon-fiber” technical end on the leather-wrapped steering wheel, instrument-panel forehead and shift knob, complemented by a “refined aluminum” ending on the middle stack, shifter and door-switch bezels.

Full instrumentation features a 180-mph (300 kph) speedometer, tachometer and temperature gauges, all trimmed with a novel blue accent and situated inside a carbon fiber-trimmed binnacle. Oil stress and temperature could also be monitored by means of a specifically configured show unit centrally situated within the instrument panel.

Available choices on the 2006 Jeep Grand Cherokee SRT8 embody a DVD-based Navigation system with turn-by instructions and voice prompts, SIRIUS® Satellite Radio and a UConnect™ hands-free communications system with Bluetooth™ expertise. This system acknowledges as much as seven totally different Bluetooth-equipped mobile telephones and responds to voice instructions, using a microphone within the rear-view mirror and the stereo system’s audio system for hands-free conversations.

The all-new 2006 Jeep Grand Cherokee SRT8 inside is obtainable in Medium Slate.

Safety and Security Features

Following are security and security measures within the 2006 Jeep Grand Cherokee SRT8:

Advanced Multi-stage Air Bag System: This system inflates with a pressure acceptable to the severity of the influence. It consists of the occupant classification system (OCS)

Anti-lock Brake System: Electronic sensors assist forestall wheel lockup. The ABS system affords improved steering management below excessive braking and/or slippery situations

Energy-absorbing Steering Column: Manual-adjust telescoping steering column consists of two hydroformed coaxial tubes that transfer relative to one another, which permits the column to maneuver ahead and supply extra vitality absorption throughout an influence

Electronic Stability Program (ESP): This characteristic aids the motive force in sustaining automobile directional stability, offering oversteer and understeer management to keep up automobile conduct on varied highway surfaces. This characteristic can have three settings, permitting the motive force extra management over the automobile throughout spirited driving

Occupant Classification System (OCS): The OCS measures the situations for activation or deactivation of the passenger-side entrance air bag based mostly upon the load of the occupant The 2006 Jeep Grand Cherokee SRT8 shall be assembled at Jefferson North Assembly Plant in Detroit, Mich.

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