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2012 Grand Cherokee SRT8 spec sheets

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2012 Jeep® Grand Cherokee SRT8®
SPECIFICATIONS
All dimensions are in inches (JeepGarage.Org)(millimeters) unless otherwise noted. All dimensions are measured at curb weight with standard tires and wheels.
Note: Information shown is correct at time of publication, and is subject to change without notice.



GENERAL INFORMATION

Four-door sport-utility vehicle
Construction
Steel uniframe
Assembly Plant
Jefferson Avenue North Assembly Plant, Detroit, Mich.
EPA Vehicle Class
Multi-purpose vehicle
Introduction
Summer 2011 as a 2012 model



ENGINE:
6.4-LITER HEMI® V-8 WITH FUEL SAVER TECHNOLOGY

90-degree V-type, liquid-cooled
Displacement, cu. in. (cu. cm.)
392 (6,424)
Bore x Stroke
4.09 x 3.72 (103.9 x 94.5)
Valve System
Pushrod-operated overhead valves, jeepgarage.org 16 valves with sodium-filled exhaust valves and hollow stem intake valves, 16 conventional hydraulic lifters, all with roller tips
Fuel Injection
Sequential, multi-port, electronic, returnless; automatic features Fuel Saver mode
Construction
Deep-skirt cast-iron block with cross-bolted main bearing caps, aluminum alloy heads with hemispherical combustion chambers
Compression Ratio
10.9:1
Power (est.) (SAE J2723)
465 hp (347 kW) at 6,000 rpm
Torque (est.) (SAE J2723)
465 lb.-ft. (630 N•m) at 4,200 rpm
Max. Engine Speed
6,400 rpm (electronically limited)
Fuel Requirement
Premium 91 octane (R+M)/2 — recommended
Oil Capacity, qt. (L)
7 (6.6)
Coolant Capacity, qt. (L)
14 (13.25)
Factory Oil Fill
5W-40 Synthetic
Emission Controls
Dual close-coupled three-way catalytic converters, quad-heated oxygen sensors and internal engine features(a)
EPA Fuel Economy mpg (City/Hwy)
12/18 (est.)
Assembly Plant
Saltillo Engine Plant, Saltillo, Mexico
(a) Meets Federal Tier 2, Bin 5 emissions requirements; marketed in California as an LEV II (Low Emission Vehicle) under cleanest vehicle rules.


TRANSMISSION:
W5A580 FIVE-SPEED AUTOMATIC
Standard with 6.4-liter HEMI engine
AutoStick driver interactive manual control and electronically-modulated torque converter clutch
Gear Ratios
1st
3.59
2nd
2.19
3rd
1.41
4th
1.00
5th
0.83
Reverse
3.16
Final Drive Ratio
3.70:1 – ZF Electronic Limited Slip Differential
Overall Top Gear
3.07


TRANSFER CASE:
MP 3010
Standard with 6.4-liter HEMI engine
Single-speed, electronic proportioning
Operating Modes
Full-time 4WD
Torque Split, Front/Rear
Variable - 50/50 Snow and 35/65 Sport and Track



FRONT AXLES
Conventional
Standard with 6.4-liter HEMI engine
Ring Gear Diameter
7.7 (195)
Axle Ratio
3.70:1



REAR AXLES
Electronic Limited Slip Differential (ELSD)
Standard with 6.4-liter HEMI engine
Ring Gear Diameter
9 (230)
Axle Ratio
3.70:1



ELECTRICAL SYSTEM
Alternator
Standard 220-amp
Battery
Group 65 maintenance-free 750CCA


DIMENSIONS AND CAPACITIES
Wheelbase
114.8 (2,915)
Track, Front
63.7 (1,618)
Track, Rear
64.3 (1,633)
Overall Length
191.3 (4,859)
Overall Width (Width at Mirrors)
84.9 (2,156)

Body Width
77.1 (1,958)
Overall Height (at Roof Rail/at Antenna)
69.1/76.9 (1,756 /1,952)
Load Floor Height
32.4 (823)
Sill Step Height
20.7 (527)
Minimum Ground Clearance
8.3 (210.8)
Chassis (Fuel Tank)
9 (230)
Front Axle
8.97 (227.8)
Rear Axle
8.99 (228.3)
Approach Angle, Degrees
18.45
Ramp Breakover Angle, Degrees
17.84
Departure Angle, Degrees
21.9
Frontal Area, sq. ft. (sq. m.)
31.0 (2.88)
Drag Coefficient
Approximately 0.40
Aero CdA
12.5 (Cd x cross-sectional area)
Fuel Tank Capacity, gal. (L)
24.6 (93.1)


ACCOMMODATIONS
Seating Capacity, Front/Second
2/3
Front Seat
Head Room
39.9 (1,013)
Legroom
40.3 (1,025)
Shoulder Room
58.7 (1,491)
Hip Room
57.0 (1,449)
Seat Travel
11.0 (280)
SAE Volume, cu. ft. (cu. m.)
54.6 (1.55)
Rear Seat
Head Room
39.2 (995)
Legroom
38.6 (981)
Shoulder Room
58.0 (1,474)
Hip Room
56.2 (1,428)
Knee Clearance
4.3 (110)
Couple
34.6 (880)
SAE Volume, cu. ft. (cu. m.)
50.8 (1.4)
Cargo Volume
Behind Rear Seat, cu. ft. (cu. m.)
35.1 (0.99)
Rear Seats Folded, cu. ft. (cu. m.)
68.7 (1.95)


Model-
SRT8 4WD
Engine-
6.4-liter
GVWR(a) lbs.(KG)-6,500 (2,948)
Curb weight-5,150 (2,336)
Payload-1,350 (612)
(a) Gross Vehicle Weight Rating.
(b) Curb weight includes standard equipment and full quantities of fuel, lubricant and coolant.
(c) Payload is the maximum allowable weight of driver, passengers, cargo, and options, rounded to the nearest 10 lbs. (5kg).


WEIGHT DISTRIBUTION, F/R
4WD
SRT8 Jeep
6.4-liter
54/46


BODY
Longitudinal front engine, transfer case with on demand four-wheel drive
Construction
Steel uniframe


EXHAUST
Dual exhaust with active valves and dual 4-in. oval black chrome tips


SUSPENSION
Short- and long-arm independent (SLA), coil springs, Bilstein Adaptive Damping Suspension (ADS), upper- and lower-control arms (“A” arms), stabilizer bar
Rear
Multi-link rear suspension, coil spring, Bilstein Adaptive Damping Suspension (ADS), aluminum lower control arm, independent upper links (tension and camber) plus a separate toe link, stabilizer bar


STEERING
SRT-tuned power rack and pinion
Steering Ratio
17.5:1
Turn Circle, ft. (m.)
37.1 (11.3)
Lock-to-Lock Steering Wheel Rotations
3.369

BRAKES
15.0 x 1.34 (380 x 34) vented disc with Brembo six-piston caliper and ABS
Swept Area, sq. in. (sq. cm.)
104.2 (672)
Rear
13.78 x 1.10 (350 x 28) disc with Brembo four-piston caliper and single-channel ABS
Swept Area, sq. in. (sq. cm.)
79.0 (508)
Power Assist
Single-rate, tandem diaphragm vacuum
(a) Turning diameter is measured at the outside of the tires at curb height. Turning diameters and steering wheel turns, lock-to-lock, may differ with optional tires and wheels.

TIRES
P295/45ZR20
Mfr. and Model
Pirelli Scorpion Verde – All-Season Performance (run flat)
Revs per Mile
699
Optional
P295/45ZR20
Mfr. and Model
Pirelli P-Zero – Three Season (run flat)
Revs per Mile
699



TRAILER TOWING(a)
4WD
6.4-liter V-8
AXLE RATIO
3.70
MAXIMUM TRAILER WEIGHT(b) LBS. (KG)
5,000 (2269)
(a) For towing heavier trailers up to the Maximum Trailer Weight Ratings shown in the Trailer Towing chart, the vehicle must be equipped with the Trailer Tow Group Class IV for the 6.4-liter engine for North America.
(b) Maximum Trailer Weight = GCWR - Curb Wt. with hitch - 300 lbs. Jeep Garage.Org (allowance for driver and passenger) and must be decreased by the weight of optional equipment, cargo and additional passengers. Maximum trailer weights shown are rounded to the nearest 50 lbs. Tongue weight should be 10-15% of loaded trailer weight but may not cause vehicle to exceed GVWR or GAWR. Load equalizing hitch recommended for trailers over 2,000 pounds.


compiled and refined by Scottina06 for JeepGarage.Org
 
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