GM Ultra Engine
Encyclopedia
Ultra was the codename for General Motors
' next-generation family of DOHC V8 engines that was being developed to replace the Northstar as the V8 engine of choice for GM's premium vehicles. There is very little information on the engine's specifications currently available, however its lowest displacement
would presumably have been similar to the Northstar's, (with higher-displacement versions probable as well), and it would very likely have incorporated technologies from the High Feature
V6 family, including continuously variable valve timing
on both intake and exhaust ports, as well as provision for gasoline direct injection
. These engines would probably have been adaptable for both longitudinal
and transverse
applications (the latter would have been used by the rumored V8-powered versions of the Lambda
crossover SUV
s).
Despite previously revealing plans to allocate production to the Tonawanda
Engine plant, as of January 2008 GM has cancelled development of this engine.
General Motors
General Motors Company , commonly known as GM, formerly incorporated as General Motors Corporation, is an American multinational automotive corporation headquartered in Detroit, Michigan and the world's second-largest automaker in 2010...
' next-generation family of DOHC V8 engines that was being developed to replace the Northstar as the V8 engine of choice for GM's premium vehicles. There is very little information on the engine's specifications currently available, however its lowest displacement
Engine displacement
Engine displacement is the volume swept by all the pistons inside the cylinders of an internal combustion engine in a single movement from top dead centre to bottom dead centre . It is commonly specified in cubic centimeters , litres , or cubic inches...
would presumably have been similar to the Northstar's, (with higher-displacement versions probable as well), and it would very likely have incorporated technologies from the High Feature
GM High Feature engine
The 3600 LY7 are members of General Motors' new High Feature engine family of modern DOHC V6s. This new family of engines was introduced in 2004 with the Cadillac CTS. Holden sells the HFV6 under the name Alloytec. The High Feature moniker on the Holden produced engine is reserved for the twin...
V6 family, including continuously variable valve timing
Variable valve timing
In internal combustion engines, variable valve timing , also known as Variable valve actuation , is a generalized term used to describe any mechanism or method that can alter the shape or timing of a valve lift event within an internal combustion engine...
on both intake and exhaust ports, as well as provision for gasoline direct injection
Gasoline direct injection
In internal combustion engines, gasoline direct injection , also known as petrol direct injection or direct petrol injection, is a variant of fuel injection employed in modern two-stroke and four-stroke gasoline engines...
. These engines would probably have been adaptable for both longitudinal
Longitudinal engine
In automotive engineering, a longitudinal engine is an internal combustion engine in which the crankshaft is oriented along the long axis of the vehicle, front to back....
and transverse
Transverse engine
A transverse engine is an engine mounted in a vehicle so that the engine's crankshaft axis is perpendicular to the long axis of the vehicle. Many modern front wheel drive vehicles use this engine mounting configuration...
applications (the latter would have been used by the rumored V8-powered versions of the Lambda
GM Lambda platform
Lambda is General Motors' full-size crossover SUV automobile platform. It is largely derived from the GM Epsilon platform, which underlies the Chevrolet Malibu sedan and similar models....
crossover SUV
Crossover SUV
A crossover SUV is a vehicle built on a car platform and combining, in highly variable degrees, features of a sport utility vehicle with features from a passenger vehicle, especially those of a station wagon or hatchback.Using the unibody construction typical of passenger vehicles, the crossover...
s).
Despite previously revealing plans to allocate production to the Tonawanda
Tonawanda (town), New York
Tonawanda is a town in Erie County, New York, United States. As of the 2000 census, the town had a population of 78,155. The town is at the north border of the county and is the northern suburb of Buffalo...
Engine plant, as of January 2008 GM has cancelled development of this engine.