Difference between revisions of "GM Atlas engine"
(uploaded "Image:Chevrolet Nova Coupe (Orange Julep).JPG": Importing image file) |
m (1 revision) |
||
Line 1: | Line 1: | ||
{{ | {{Infobox Automobile engine | ||
| image = | |||
| name = Atlas | |||
| aka = | |||
| manufacturer = [[General Motors Corporation]] | |||
| type = [[straight-4]]<br>[[straight-5]]<br>[[straight-6]] | |||
| production = 2002 - present | |||
| predecessor = [[Chevrolet Straight-6 engine]] | |||
| successor = | |||
| bore = | |||
| stroke = | |||
| displacement = 169-254 cu in (2770-4160 cc) | |||
| length = | |||
| diameter = | |||
| width = | |||
| height = | |||
| weight = | |||
| block = | |||
| head = | |||
| valvetrain = | |||
| supercharger = | |||
| turbocharger = | |||
| fuelsystem = | |||
| fueltype = | |||
| oilsystem = | |||
| coolingsystem = | |||
| power = | |||
| specpower = | |||
| torque = | |||
| compression = | |||
| fuelcon = | |||
| specfuelcon = | |||
| oilcon = | |||
| similar = | |||
}} | |||
'''Atlas''' is a name for a family of modern [[straight engine|inline]] [[piston engine]]s for [[truck]]s from [[General Motors Corporation|General Motors]]. The series debuted in 2002 with the [[Oldsmobile Bravada]], and is also used in the [[Chevrolet TrailBlazer]] and [[Chevrolet Colorado|Colorado]] and their [[GMC (General Motors division)|GMC]] twins, the [[GMC Envoy|Envoy]] and [[GMC Canyon|Canyon]]. In production, the engines use GM's [[GM Vortec engine|Vortec]] name, and [[Straight-4|I4]], [[Straight-5|I5]], and [[Straight-6|I6]] engines are all part of the same family, sharing the same manufacturing equipment, rods, pistons, valves, and other parts. They feature [[variable valve timing]] on the [[exhaust manifold|exhaust]] side, [[electronic throttle control]], and a special oil pan with a pass-through for the [[half shaft]]s in [[four-wheel drive]] vehicles. The inclusion of VVT on the exhaust allows the Atlas series to meet emissions standards without the use of [[EGR]], simplifying the engine design. | |||
The ' | The Atlas program began in 1995 along with the planning for GM's next-generation mid-size [[Sport utility vehicle|SUV]]s and [[pickup truck]]s. These vehicles were designed around the I6 engine. The I6 version was used in a [[Baja 1000|Baja 2000]] racing truck, winning its first race in a class that also included [[V8]] engines. Another I6-powered truck won the truck class at the [[Pikes Peak International Hillclimb]]. | ||
The | The I6 Atlas engines are produced at the [[Flint Engine South]] plant in [[Flint, Michigan]], while the I4 and I5 versions are produced at the Tonawanda Engine plant in [[Tonawanda, New York]]. | ||
== | ==LL8== | ||
[[Image:LL8.jpg|right|thumb|250px|Vortec 4200 LL8 engine in a 2006 Chevrolet Traiblazer.]] | |||
The '''LL8''' (or '''Vortec 4200'''), is a [[straight-6]] [[truck]] engine. It was the first Atlas engine, and was designed for GM's new SUV line. It displaces 4.2 L {{nowrap|(4160 cc, 254 cu in)}}<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Line%20456/2007_LL8.xls</ref>, with a {{Auto mm|93|1}} bore and {{Auto mm|102|1}} stroke. When introduced, this engine's power was 270 hp (205 kW) @ 6000 rpm and torque was 275 ft·lbf (373 N·m) @ 3600 RPM. 2003 saw a slight bump in power to {{convert|275|hp|abbr=on}}, while torque was unchanged. For 2006, power was increased to 291 hp (217 kW) @ 6000 rpm and torque to 277 ft·lbf (376 N·m) @ 4800 rpm with the addition of a [[Mass_flow_sensor#Hot_wire_sensor_.28MAF.29|MAF]] and a complete internal redesign of the engine. The Atlas LL8 was on the [[Ward's 10 Best Engines]] list for 2002 through 2005. Engine redline is 6300 rpm. | |||
LL8 Applications: | |||
* 2002-2007 [[GMC Envoy]], ''Envoy XL'', and ''Envoy XUV'' | |||
* 2002-2007 [[Chevrolet TrailBlazer]] and ''TrailBlazer EXT'' | |||
* 2002-2004 [[Oldsmobile Bravada]] | |||
* [[Buick Rainier]] | |||
* [[Isuzu Ascender]] | |||
* [[Saab 9-7X]] | |||
== | ==L52== | ||
{{Infobox Automobile engine generation | |||
| image = [[Image:GMC_Canyon_Vortec_3500_engine.jpg|250px|Vortec 3500 L52 engine in a 2005 [[GMC Canyon]]]] | |||
| name = L52 | |||
| aka = Vortec 3500 | |||
| type = [[straight-5]] | |||
| production = | |||
| predecessor = | |||
| successor = | |||
| bore = {{Auto mm|93}} | |||
| stroke = {{Auto mm|102}} | |||
| displacement = {{convert|3460|cc|CID|abbr=on|lk=on}} | |||
| length = | |||
| diameter = | |||
| width = | |||
| height = | |||
| weight = | |||
| block = | |||
| head = | |||
| valvetrain = | |||
| supercharger = | |||
| turbocharger = | |||
| fuelsystem = | |||
| fueltype = | |||
| oilsystem = | |||
| coolingsystem = | |||
| power = {{Convert|220|hp|kW|0|abbr=on}} @ 5600 [[Revolutions per minute|RPM]] | |||
| specpower = | |||
| torque = {{Auto ftlbf|225}} @ 2800 [[Revolutions per minute|RPM]] | |||
| compression = | |||
| fuelcon = | |||
| specfuelcon = | |||
| oilcon = | |||
| similar = | |||
}} | |||
The '''L52''' (also called '''Vortec 3500'''), is a [[straight-5]] [[truck]] engine. It displaces 3.5 L ({{convert|3460|cc|CID|abbr=on|disp=s}}), with a {{Auto mm|93|1}} bore and {{Auto mm|102|1}} stroke, and shares much with the rest of the Atlas family. Dynoed at the flywheel it produces 220 hp (164 kW) @ 5600 rpm and 225 ft·lbf (305 N·m) @ 2800 rpm, while producing 179.13 hp at 6001 rpm when dynoed at the rear wheels. Engine redline is 6300 rpm. | |||
It is used in the following vehicles: | |||
* 2002 [[Chevrolet Bel Air]] concept | |||
* 2004-2006 [[Chevrolet Colorado]] | |||
* 2004-2006 [[GMC Canyon]] | |||
* 2006 [[Isuzu i-Series]] | |||
* 2006 [[Hummer H3]] | |||
==LLR== | |||
The '''LLR''' (also called '''Vortec 3700'''), is a [[straight-5]] [[truck]] engine. It displaces 3.7 L ({{convert|3653|cc|CID|0|abbr=on|disp=s}}), courtesy of a larger {{convert|95.5|mm|in|abbr=on}} bore while keeping the {{Auto mm|102|1}} stroke, and shares much with the rest of the Atlas family. It produces 242 hp (180 kW) @ 5600 rpm and 242 ft·lbf (327 N·m) @ 4600 rpm. Engine redline is 6300 rpm. | |||
It is used in the following vehicles: | |||
* 2007 [[Chevrolet Colorado]] | |||
* 2007 [[GMC Canyon]] | |||
* 2007 [[Isuzu i-Series]] | |||
* 2007 [[Hummer H3]] | |||
==LK5== | |||
The [[straight-4]] '''LK5''' engine is sold as the '''Vortec 2800''' in GM trucks. Like its Atlas brothers, the LK5 has [[dual overhead cam]]s, and shares their {{Auto mm|93|1}} bore and {{Auto mm|102|1}} stroke. The LK5 displaces 2.8 L {{nowrap|(2770 cc, 169 cu in)}} and produces 175 hp (131 kW) @ 5600 rpm and 185 ft·lbf (251 N·m) @ 2800 rpm.<ref>http://media.gm.com/us/powertrain/en/product_services/2006/Spec%20Sheets/Line%20456/2006%20Line%20I4%20Truck%20(LK5).pdf</ref> Engine redline is 6300 rpm. | |||
It is used in the following vehicles: | |||
* 2004-2006 [[Chevrolet Colorado]] | |||
* 2004-2006 [[GMC Canyon]] | |||
* 2006 [[Isuzu i-Series]] | |||
==LLV== | |||
The [[straight-4]] '''LLV''' engine is sold as the '''Vortec 2900''' in GM trucks. It shares the same 95.5 mm bore and {{Auto mm|102|1}} stroke as the '''LLR Vortec 3700'''. The LLV displaces 2.9 L {{nowrap|(2921 cc, 178 cu in)}}<ref>http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Line%20456/2007_LLV.xls</ref> and produces 185 hp (138 kW) @ 5600 rpm and 195 ft·lbf (263 N·m) @ 2800 rpm. Engine redline is 6300 rpm. | |||
It is used in the following vehicles: | |||
* | * 2007 [[Chevrolet Colorado]] | ||
* 2007 [[GMC Canyon]] | |||
* 2007 [[Isuzu i-Series]] | |||
* | |||
* | |||
[[Category:GM engines|Atlas]] | |||
[[Category:GM engines| | |||
Latest revision as of 15:27, 3 February 2009
Manufacturer | General Motors Corporation |
---|---|
Type | straight-4 straight-5 straight-6 |
Production | 2002 - present |
Predecessor | Chevrolet Straight-6 engine |
Displacement | 169-254 cu in (2770-4160 cc) |
Atlas is a name for a family of modern inline piston engines for trucks from General Motors. The series debuted in 2002 with the Oldsmobile Bravada, and is also used in the Chevrolet TrailBlazer and Colorado and their GMC twins, the Envoy and Canyon. In production, the engines use GM's Vortec name, and I4, I5, and I6 engines are all part of the same family, sharing the same manufacturing equipment, rods, pistons, valves, and other parts. They feature variable valve timing on the exhaust side, electronic throttle control, and a special oil pan with a pass-through for the half shafts in four-wheel drive vehicles. The inclusion of VVT on the exhaust allows the Atlas series to meet emissions standards without the use of EGR, simplifying the engine design.
The Atlas program began in 1995 along with the planning for GM's next-generation mid-size SUVs and pickup trucks. These vehicles were designed around the I6 engine. The I6 version was used in a Baja 2000 racing truck, winning its first race in a class that also included V8 engines. Another I6-powered truck won the truck class at the Pikes Peak International Hillclimb.
The I6 Atlas engines are produced at the Flint Engine South plant in Flint, Michigan, while the I4 and I5 versions are produced at the Tonawanda Engine plant in Tonawanda, New York.
LL8
The LL8 (or Vortec 4200), is a straight-6 truck engine. It was the first Atlas engine, and was designed for GM's new SUV line. It displaces 4.2 L (4160 cc, 254 cu in)[1], with a 93 mm (3.7 in) bore and 102 mm (4 in) stroke. When introduced, this engine's power was 270 hp (205 kW) @ 6000 rpm and torque was 275 ft·lbf (373 N·m) @ 3600 RPM. 2003 saw a slight bump in power to 275 hp (205 kW), while torque was unchanged. For 2006, power was increased to 291 hp (217 kW) @ 6000 rpm and torque to 277 ft·lbf (376 N·m) @ 4800 rpm with the addition of a MAF and a complete internal redesign of the engine. The Atlas LL8 was on the Ward's 10 Best Engines list for 2002 through 2005. Engine redline is 6300 rpm.
LL8 Applications:
- 2002-2007 GMC Envoy, Envoy XL, and Envoy XUV
- 2002-2007 Chevrolet TrailBlazer and TrailBlazer EXT
- 2002-2004 Oldsmobile Bravada
- Buick Rainier
- Isuzu Ascender
- Saab 9-7X
L52
Also called | Vortec 3500 |
---|---|
Type | straight-5 |
Bore | 93 mm (3.7 in) |
Stroke | 102 mm (4 in) |
Displacement | 3,460 cc (211 cu in) |
Power output | 220 hp (164 kW) @ 5600 RPM |
Torque output | 225 lb·ft (305 N·m) @ 2800 RPM |
The L52 (also called Vortec 3500), is a straight-5 truck engine. It displaces 3.5 L (3,460 cc/211 cu in), with a 93 mm (3.7 in) bore and 102 mm (4 in) stroke, and shares much with the rest of the Atlas family. Dynoed at the flywheel it produces 220 hp (164 kW) @ 5600 rpm and 225 ft·lbf (305 N·m) @ 2800 rpm, while producing 179.13 hp at 6001 rpm when dynoed at the rear wheels. Engine redline is 6300 rpm.
It is used in the following vehicles:
- 2002 Chevrolet Bel Air concept
- 2004-2006 Chevrolet Colorado
- 2004-2006 GMC Canyon
- 2006 Isuzu i-Series
- 2006 Hummer H3
LLR
The LLR (also called Vortec 3700), is a straight-5 truck engine. It displaces 3.7 L (3,653 cc/223 cu in), courtesy of a larger 95.5 mm (3.76 in) bore while keeping the 102 mm (4 in) stroke, and shares much with the rest of the Atlas family. It produces 242 hp (180 kW) @ 5600 rpm and 242 ft·lbf (327 N·m) @ 4600 rpm. Engine redline is 6300 rpm.
It is used in the following vehicles:
- 2007 Chevrolet Colorado
- 2007 GMC Canyon
- 2007 Isuzu i-Series
- 2007 Hummer H3
LK5
The straight-4 LK5 engine is sold as the Vortec 2800 in GM trucks. Like its Atlas brothers, the LK5 has dual overhead cams, and shares their 93 mm (3.7 in) bore and 102 mm (4 in) stroke. The LK5 displaces 2.8 L (2770 cc, 169 cu in) and produces 175 hp (131 kW) @ 5600 rpm and 185 ft·lbf (251 N·m) @ 2800 rpm.[2] Engine redline is 6300 rpm.
It is used in the following vehicles:
- 2004-2006 Chevrolet Colorado
- 2004-2006 GMC Canyon
- 2006 Isuzu i-Series
LLV
The straight-4 LLV engine is sold as the Vortec 2900 in GM trucks. It shares the same 95.5 mm bore and 102 mm (4 in) stroke as the LLR Vortec 3700. The LLV displaces 2.9 L (2921 cc, 178 cu in)[3] and produces 185 hp (138 kW) @ 5600 rpm and 195 ft·lbf (263 N·m) @ 2800 rpm. Engine redline is 6300 rpm.
It is used in the following vehicles:
- 2007 Chevrolet Colorado
- 2007 GMC Canyon
- 2007 Isuzu i-Series
- ↑ http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Line%20456/2007_LL8.xls
- ↑ http://media.gm.com/us/powertrain/en/product_services/2006/Spec%20Sheets/Line%20456/2006%20Line%20I4%20Truck%20(LK5).pdf
- ↑ http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Line%20456/2007_LLV.xls
- GM engines