2012 Jeep Grand Cherokee SRT8
- Specs
|
|
Dimensions and capacities are in inches (mm)
unless otherwise specified.
Engine
|
6.4-LITER
HEMI® V-8 WITH FUEL SAVER TECHNOLOGY |
Availability |
Standard |
Type and Description |
90-degree V-type, liquid-cooled |
Displacement |
392 (6,424) |
Bore x Stroke |
4.09 x 3.72 (103.9 x 94.5) |
Valve System |
Pushrod-operated overhead
valves, 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 (SAE net) |
470 hp (351 kW) at 6,000
rpm |
Torque (SAE net) |
465 lb.-ft. (630 Nm)
at 4,300 rpm |
Max. Engine Speed |
6,400 rpm (electronically
limited) |
Fuel Requirement |
Premium 91 octane (R+M)/2
recommended |
Oil Capacity |
7 (6.6) |
Coolant Capacity |
14 (13.25) |
Factory Oil Fill |
0W-40 Synthetic |
Emission Controls |
Dual close-coupled three-way
catalytic converters, quad-heated oxygen sensors and
internal engine features(a) |
Estimated EPA Fuel Economy mpg (City/Hwy) |
12/18 |
(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 |
Availability |
Standard
with 6.4-liter HEMI engine |
Description |
Auto Stick 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 |
Overall Top Gear |
3.07 |
Final Drive Ratio |
3.70:1 ZF Electronic
Limited Slip Differential |
Transfer Case
|
MP
3010 |
Operating Modes |
Full-time
4WD |
Availability |
Standard with 6.4-liter
HEMI engine |
Type |
Single-speed, electronic
proportioning |
Torque Split, Front / Rear |
Variable - 50/50 Snow and
35/65 Sport and Track |
Electrical System |
2012
Jeep Grand Cherokee SRT8 |
Battery |
Group
65 maintenance-free 750CCA |
Alternator |
Standard 220-amp |
Dimensions
& Capacities(a) |
2012
Jeep Grand Cherokee SRT8 |
Wheelbase |
114.8
(2,915) |
Track |
Front |
63.7
(1,618) |
Rear |
64.3
(1,633) |
Overall Length |
191.3
(4,859) |
Body Width |
77.1
(1,958) |
Overall Width (at mirrors)
|
84.9 (2,156) |
Overall Height |
at Roof Rail |
69.1 (1,756) |
at Antenna |
76.9 (1,952) |
Ground Clearance |
Minimum Ground Clearance |
8.3 (210.8) |
Chassis (Fuel Tank) |
9 (230) |
Front Axle |
8.97 (227.8) |
Rear Axle |
8.99 (228.3) |
Sill Step Height |
20.7 (527) |
Load Floor Height |
32.4 (823) |
Approach Angle |
18.45° |
Departure Angle |
21.9° |
Ramp Breakover Angle |
17.84° |
Aero CdA |
12.2 (Cd
x cross-sectional area) |
Frontal Area, sq. ft.
(sq. m.) |
31.5 (2.93) |
Drag Coefficient |
.39 |
Fuel Tank Capacity, gal.
(L) |
24.6 (93.1) |
Accomodations |
Front
Row |
Rear
Row |
Seating Capacity |
2 |
3 |
Head Room |
39.9
(1,013) |
39.2
(995) |
Leg room |
40.3
(1,025) |
38.6
(981) |
Shoulder room |
58.7 (1,491) |
58.0 (1,474) |
Hip room |
57.0 (1,449) |
56.2 (1,428) |
Seat Travel |
11.0 (280) |
|
Knee Clearance |
|
4.3 (110) |
Couple |
|
34.6 (880) |
SAE Volume, cu. ft. (cu. m.) |
54.6 (1.55) |
50.8 (1.4) |
Cargo Volume cubic ft. (cu.
m) |
Behind Rear Seat, cu. ft.
(cu. m.) |
35.1 (0.99) |
Rear Seats
Folded, cu. ft. (cu. m.) |
68.7 (1.95) |
Body and Chasssis |
2012
Jeep Grand Cherokee SRT8 |
Layout |
Longitudinal
front engine, transfer case with on demand four-wheel
drive |
Construction |
Steel uniframe |
Suspension |
2012
Jeep Grand Cherokee SRT8 |
Front |
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 |
Axles |
Front |
Rear |
Differential Type |
Conventional |
Electronic
Limited Slip Differential (ELSD) |
Ring Gear Diameter |
7.7 (195) |
9 (230) |
Axle Ratio |
3.70:1 |
3.70:1 |
Exhaust |
2012
Jeep Grand Cherokee SRT8 |
Type |
Dual
exhaust with active valves and dual 4-in. oval black
chrome tips |
Steering |
2012
Jeep Grand Cherokee SRT8 |
Type |
SRT-tuned
power rack and pinion |
Overall Ratio |
17.5:1 |
Turn Circle, ft. (m.) |
37.1
(11.3) |
Steering Turns (lock-to-lock) |
3.369 |
(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 |
Standard |
Optional |
Mfr. and Model |
Pirelli
Scorpion Verde All-Season Performance (run flat) |
Pirelli
P-Zero Three Season (run flat) |
Size and Type |
P295/45ZR20 |
P295/45ZR20 |
Size |
699 |
699 |
Wheels |
2012
Jeep Grand Cherokee SRT8 |
Size |
Forged
aluminum, painted, split 5-spoke |
Type and material |
20 x 10 |
Brakes |
2012
Jeep Grand Cherokee SRT8 |
Front |
Size and Type
|
15.0 x 1.34 (380 x 34)
vented disc with Brembo six-piston caliper and ABS |
Swept Area
|
104.2
sq. in. (672 sq. cm.) |
Rear |
Size and Type
|
13.78 x 1.10 (350 x 28)
disc with Brembo four-piston caliper and single-channel
ABS |
Swept Area
|
79.0
sq. in.(508 sq. cm.) |
Power Assist Type |
Single-rate,
tandem diaphragm vacuum |
TRAILER
TOWING(a) |
Engine |
Drivetrain |
Axle
Ratio |
Maximum
Trailer Weight(b) LBS. (KG) |
6.4-liter V-8 |
4WD |
3.70 |
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. (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. |
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a Price Quote on a 2012 Jeep Grand Cherokee SRT8.
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