2006 GMC Sierra Diesel Truck Drag Racing Racelegal.com 9-7-2012

Friday night drag racing at qualcomm stadium drag race your ride nothing like a duramax diesel four wheel drive truck drag racing against a 2011 Camaro SS and a trailblazer ss. The Duramax is a General Motors diesel engine family for light- and medium duty trucks, designed by Isuzu. The 6.6-liter Duramax is produced by DMAX, a joint venture between GM and Isuzu in Moraine, Ohio. This engine was initially installed in 2001 model year Chevy and GMC trucks and has been an option since then in pickups, vans, and medium-duty trucks. In 2006, production at Moraine was reportedly limited to approximately 200,000 engines per year.[1] On May 9, 2007, DMAX announced the production of the 1,000,000th Duramax V-8 diesel at its Moraine facility.[1] The LBZ (engine code "D") debuted in late 2006 and continued into 2007 sold only in the "classic" body style. It has an improved engine computer tune that produces increased power and torque over the 2005.5 LLY version of the motor. Changes include: Cylinder block casting and machining changes strengthen the bottom of the cylinder bores to support increased power and torque Upgraded main bearing material increases durability Revised piston design helps lower compression ratio to 16.8:1 from 17.5:1 Piston pin bore diameter increased for increased strength Connecting rod " I " section is thicker for increased strength Cylinder heads revised to accommodate lower compression and reduced cylinder firing pressure Maximum injection pressure increased from 23,000 psi (1,585.8 bar) to more than 26,000 psi (1,792.6 bar) Fuel delivered via higher-pressure pump, fuel rails, distribution lines and all-new, seven-hole fuel injectors Fuel injectors spray directly onto glow plugs, providing faster, better-quality starts and more complete cold-start combustion for reduced emissions Improved glow plugs heat up faster through an independent controller Revised variable-geometry turbocharger is aerodynamically more efficient to help deliver smooth and immediate response and lower emissions Air induction system re-tuned to enhance quietness EGR has larger cooler to bring more Exhaust into the system First application of new, 32-bit E35 controller, which adjusts and compensates for the fuel flow to bolster efficiency

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