Angular Speed of a Truck Engine
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Bibliographic Entry  Result (w/surrounding text) 
Standardized Result 


C7 7.2L Diesel Engine, Caterpillar. 

2400–2500 rpm  
Nissan Frontier Pickup Manual, Haynes North America, 2001: 2D1. 

2000–3000 rpm  
1999 2.2L (LN2) Struck ENGINE DIAGNOSTIC PARAMETERS [pdf]. General Motors  "900 > RPM > 6375 Engine run time > 40 Sec" 
469–6375 rpm  
Beisner, Arthur. Physics Fifth Edition. AddisonWesley, 1991: 446.  "At 800 rpm a diesel engine develops 60 kW and consumes18 kg of fuel per hour. At 1800 rpm the same engine develops 120 kW and consumes 32 kg of fuel per hour. Find its efficiency at each speed."  800–1800 rpm  
Kennedy, David and Reed, Trevor. GM Truck Engine Swap Project 6.5L Part 1: The Makings Of The Perfect Engine Swap. Diesel Power, 2008.  [see table below]  17003600 rpm 
Angular speed or angular velocity is a vector quantity which specifies the axis that an object is rotating on. The SI unit of angular velocity is radians per second, although it may be measured in other units such as degrees per second, degrees per hour, etc. When measured in cycles or rotations per unit time, an example of this is revolutions per minute.
James Watt who invented the term horsepower believes one horse can do 33,000 footpounds of work every minute. That means a horse generating 1 horse power can raise 330 pounds 100 feet in one minute, 33 pounds 1,000 feet in one minute, or 1,000 pounds 33 feet in one minute.
A truck engine has the same angular speed as a race car engine but only at very low translational speed. From 40 mph and higher the truck engine has to go to a second shift unlike the race car engine which is able to manage and goes to its second shift at 80 mph. Even though a truck engine might not measure greatly towards a race car's engine but truck engine's consistent speed help carrying large and heavy loads for long distances and periods of time. Engine performance is enhanced when the revolutions per minute are shortened. Trucks use many different types of engines. They use gasoline engines, four stroke turbo intercooler diesel engines, and locomotivetype engines such as a V12.
6.2L vs.  6.5L vs.  6.6L Duramax  

Engine codes:  LH6, LL4  L56, L57,L65  LB7, LLY, LBZ, LMM 
Year introduced:  1982  1992  2001 
Displacement:  379 ci  397 ci  403 ci 
Bore x stroke (in.):  3.98 x 3.80  4.06 x 3.82  4.06 x 3.90 
Block material:  cast iron  cast iron  cast iron 
Head material:  cast iron  cast iron  cast aluminum 
Aspiration:  normal  turbo  fixed or variable turbo 
Valvetrain:  OHV 2V  OHV 2V  OHV 4V 
Compression ratio:  21.5:1  18.020.2:1  17.516.4:1 
Fuel injection:  indirect  indirect  directinjection, highpressure common rail 
Horsepower (intro):  130 hp @ 3,600 rpm  190 hp @ 3,400 rpm  300 hp @ 3,100 rpm 
Torque (intro):  240 lbft @ 2,000 rpm  380 lbft @ 1,700 rpm  520 lbft @ 1,800 rpm 
Horsepower (max):  143 hp @ 3,600 rpm  215 hp @ 3,200 rpm  365 hp @ 3,200 rpm 
Torque (max):  257 lbft @ 2,000 rpm  440 lbft @ 1,800 rpm  660 lbft @ 1,600 rpm 
Max rpm:  3,600 rpm  3,400 rpm  3,450 rpm 
Carl Desir  2008