Dodge used 2.5 liter engines in the Daytona, Shadow, Spirit and other vehicles between 1986 and 1993. AllPar.com notes that the Dodge 2.5-liter engine was the "last gasp" of the once legendary slant-six engine.
Construction and Design
The Dodge 2.5-liter engine was made of a cast iron block with aluminum alloy heads and counter-rotating balance shafts. It had an 8-valve, single-overhead-camshaft (SOHC) configuration with roller followers, hydraulic lifters and an electronic, throttle body fuel-injection system.
Performance Specs
The Dodge 2.5-liter engine had a displacement of 153 cubic inches, with a compression ratio of 8.9-to-1 and a bore and stroke of 3.44 inches by 4.09 inches. It achieved its maximum torque of 135 lb-ft at 2,800 rpm and a maximum 100 bhp at 4,800rpm, giving it a bhp-to-liter ratio of 40-to-1. The maximum rpm for the Dodge 2.5-liter engine was 5,950.
Mileage, Fuel and Fluids
The Dodge 2.5-liter engine earned an EPA-estimated mileage of 27 miles per gallon in the city and 33 miles per gallon on the highway in a 1993 Sundance with a five-speed transmission. It used 87-octane regular unleaded gasoline and held four quarts of oil and nine quarts of coolant.
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