Chrysler Pentastar Engines - Specifications
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| Horsepower | Torque (lb-ft) | 0-60 (est) | EPA MPG | |
|---|---|---|---|---|
| Dodge Challenger | 305 | 268 | 18/26 | |
| Dodge Charger Pursuit | 291 @ 6,400 | 260 @ 4,400 | 8.65 | |
| Minivans, Avenger, 200 | 283 @ 6,400 | 260 @ 4,800 | ||
| Chrysler 300 and Dodge Charger | 292 @ 6,400 | 260 @ 4,800 | 19/26 | |
| Jeep Grand Cherokee | 290 @ 6,400 | 260 @ 4,800 | 16/24 |
Specifications for the Mopar Pentastar engines used in Chrysler, Dodge, Jeep, and Ram cars and trucks (Challenger might be different):
| Spec | Details |
| Material | Liquid cooled 60° V6 with deep-skirt aluminum block and heads; metric standard |
| Valves | Chain driven DOHC with 24 valves. Roller finger followers and hydraulic lash adjusters. Dual independent cam-torque actuated phasers. |
| Displacement | 220 cid / 3.6 liters |
| Bore x Stroke | 3.78 x 3.27 (96 x 83 mm) |
| Fuel injection | Returnless, sequential. Direct injection to be on future, turbocharged, 3-liter variants. |
| Compression | 10.2:1 |
| Fluid | 6 quarts 5W20 oil; 14 quarts antifreeze; regular gas |
| Redline | 6,400 rpm (stated elsewhere as 7,200 rpm) |
| Emission controls | Dual three-way catalytic converters, heated oxygen sensors, internal features |
| Assembly | First: Trenton Engine Plant, Michigan. Factory in Mexico to follow. Annual production: 1,000,000 across two factories |
| Firing order | 1-2-3-4-5-6; lead cylinder is #1 in the right bank |
| Cylinder bore diameter | Grade 1, 95.995 mm ± 0.005 mm (3.7793 ± 0.0002 in); Grade 2, 96.005 mm ± 0.005 mm (3.7797 inches 0.0002) |
| Bore out of round | Max 0.009 mm (0.00035 inches) |
| Bore cylindricity | 0.014 mm |
| Crank bore taper | Max, measured over length of bulkhead, 0.006 mm |
| Pistons | Metric standard, cast aluminum alloy; weight, 354-364 grams |
| Piston pin offset | 0.8 mm |
| Piston pins | Full floating pins, 21.9985 ± 0.0015 mm diameter Clearance in piston, 0.002 - 0.011 mm; in rod, 0.011 - 0.024 mm |
| Piston rings | #1 and #2 (top and center) are compression, 0.25-0.40 and 0.30 - 0.45 gaps respectively #3 is oil control (steel rings), 0.15 - 0.66 gap |
| Intake valve timing | Opens at 2° ATDC, closes at 82° (ABDC) or 262° (ATDC); 260° duration, 128° centerline (crank degrees, using a 0.1524 mm valve lift threshold) |
| Exhaust valve timing | Opens 59° (BBDC) or 239° (BTDC), closes 12° ATDC, duration 251°, overlap 10° (see unit note above) |
| Oil pressure | Warm — 600-1,200 rpm: 34.7 kPa min; 1,201-3,500 206.8 min; 3,501 - 6,400, 427.0 min Cold — 958 (139 psi) |
Running on regular gas, the Pentastar engine meets California LEV II+ evaporative emission requirements, Tier 2, meets Federal Bin 4+ emission requirements, and Clean Fuel Fleet Certification (CCF-LEV) in all other states.
The following "Pentastar V4" was produced for a satire site...
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