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2015 - Holley HP EFI engine control unit (ECU) became optional equipment used in conjunction with the Ilmor 396 engine package which is legal for use in the ARCA racing series. [ 28 ] 2016 - Holley HP EFI engine control unit (ECU) became standard equipment used on all cars in the NHRA's Pro Stock class, the world premier class for naturally ...
Originally invented for Henry Fords six cylinder racer in 1905, the first production use of a CDI system was put into use in 1906 as standard equipment with the Ford Model K. The Model K utilized dual ignition systems, one of which was the Holley-Huff Magneto, or Huff System, manufactured by the Holley Brothers Company.
It used an EFI system with electronically controlled injectors, which were mated to a twin barrel "carburetor" body. It featured "swirl port" heads (helped emissions, but severely stunted power output) and served as the base V8 engine in all C/K 1500 Series and 2500 Series (under 8,500 lbs GVWR) GMC/Chevrolet trucks and vans.
The LT-1 had an 11.0:1 compression ratio, Holley 780 cu ft/min (22 m 3 /min) 4-barrel carburetor, and solid lifters. For the first year the LT-1 was rated at 370 hp (276 kW) in the Corvette and 360 hp (268 kW) in the Camaro, both of these being brake horsepower (bhp) gross hp ratings. Despite the disparity in these horsepower ratings, there was ...
The 454 EFI version was rated from 230 hp (172 kW) to 255 hp (190 kW) and from 385 lb⋅ft (522 N⋅m) to 405 lb⋅ft (549 N⋅m) of torque. The 1991–1993 454SS made 255 horsepower at 4000 rpm and 405 lb-ft of torque at 2400 rpm thanks to dual 2.5" catalytic converters.
The Turbo-Jet 396 was offered in 325 bhp (242 kW) or 350 bhp (260 kW) versions. Returning to the official options list for the first time since late 1966 was the 375 bhp (280 kW) L78. It had solid lifters, big-port heads, and an 800 cfm Holley four-barrel on a low-rise aluminum manifold. A three-speed manual was standard with all engines, and a ...
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