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LS2 can also refer to the 1973–1974 Super Duty 455 cu in (7.5 L) Pontiac V8 engine LS2 can also refer to the 1985 Oldsmobile Diesel V6 engine. The LS2 was introduced as the Corvette's new base engine for the 2005 model year. It also appeared as the standard powerplant for the 2005–2006 GTO.
The 1982 L83 was again the only Corvette engine, producing 200 hp (149 kW) and 285 lb⋅ft (386 N⋅m) of torque from 9.0:1 compression. Since GM did not assign a 1983 model year to production Corvettes, there was no L83 for 1983. [22] This was also the only engine on the 1984 Corvette, at 205 hp (153 kW) and 290 lb⋅ft (393 N⋅m) of torque.
Other problems may be implicated in the case of older vehicles equipped with carburetors. Weak, disconnected, or mis-connected throttle return springs, worn shot-pump barrels, chafed bowden cable housings, and cables which jump their tracks in the throttle-body crank can all cause similar acceleration problems.
The 2006 and 2007 CTS-V used the 400 hp (298 kW) 6.0 L LS2 Gen IV V8, similar to that used in the standard Corvette C6. The 2009–2015 CTS-V carried a supercharged 6.2 L LSA variant of the Gen IV V8, producing an SAE-certified 556 hp (415 kW), while the 2016–2019 model carried a supercharged 6.2 L LT4 with 640 hp (477 kW).
The advent of concern about fuel economy and emissions had major impacts on engine design. Some of the trade-offs reduced throttle response. Most new cars employ a drive-by-wire system, which includes electronic throttle control and can itself either reduce or increase throttle response (Depending on whether or not it's being employed on a performance car).
Wide open throttle or wide-open throttle (WOT), also called full throttle, is the fully opened state of a throttle on an engine (internal combustion engine or steam engine). The term also, by extension, usually refers to the maximum-speed state of running the engine, as the normal result of a fully opened throttle plate/ butterfly valve .
Pontiac added the drive-by-wire 400 HP LS2 V8 for the 2005 and 2006 model years at no additional cost. Additional upgrades also consisted of stainless steel dual exhaust outlets, larger Corvette-sourced PBR brakes with EBD, larger front vented rotors with vented rear rotors, and functional heat extractor hood scoops.
The essential problem is keeping the differential from rotating during acceleration and braking. The torque tube solves that problem by coupling the differential housing to the transmission housing and, therefore, propels the car forward by pushing up on the engine/transmission and then through the engine mounts to the car frame, with the ...