The Acura Integra series belonged to Honda's upmarket luxury and performance cars. It was released from 1987 up to 2006, spanning four generations of design. It was redesigned around 1990 to give the Acura a new chassis, engine, independent suspension, and four-wheel brakes. The third generation Acura was released in 1994 and it bore distinct projector beam headlights. The 1994 Acura was also released in three trims; RS, LS and GS-R.
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1994 Acura Specifications
The third generation 1994 Acura Integra used a 1.8-litre four-cylinder 16-valve DOHC engine. Only the GS-R was equipped with the Variable Valve and Lift Electronic Control (VTEC) system. The engine block was made of aluminium alloy with cast-iron cylinder liners. The GS-R was the most powerful among the three trims, as it generated a maximum power of 170 horsepower at 7,600rpm. The RS and LS achieved a maximum power of 142 horsepower at 6,300rpm. They generated around 127 up to 128 foot-pounds of torque, with the GS-R achieving this at 6,200rpm and the LS and RS at 5,200rpm.
Acura DOHC Engine Overhaul Specifications
When overhauling, the engine code number should be noted in order to identify the correct specifications needed. The RS and LS trims used the B18B1 engine, while the GS-R used the B18C1 engine code. The overhaul specifications for the DOHC B18B1 and B18C1 engines used in the Acura Integra were the same as the specifications for Honda Civic 1996 to 2000 and Honda CR-V 1997 to 2001 models.
The B18B1 and B18C1 shared the same parts specifications such as oil pressure, engine block limits, piston diameter, ring groove clearance, compression ring specifications, crank shaft and connecting rods, valve-to-stem clearance, rotor-to-cover clearance, tooth-tip clearance and outer rotor-to-pump clearance.
The B18B1 and B18C1 differed slightly in the other specifications such as cylinder compression pressure, second and top compression rings, main bearing journals, connecting rod bearing oil clearance, cylinder head height, valve margin width and diameter, and valve stem height and length.
Acura DOHC Engine Torque Specifications
Similar with the overhaul specifications, the Acura DOHC engine torque specifications were the same as with the Honda Civic and CR-V. The B18B1 and B18C1 shared the same torque specifications for the camshaft bearing cap bolts, crankshaft sensor bolts, crankshaft pulley bolt, cylinder head bolts, driveplate-to-crankshaft bolts, intake manifold bolts, exhaust manifold bolts, oil pan bolts, oil pump nuts and bearing cap, oil seal housing bolts, timing belt bolts, valve cover nuts, VTEC lock bolts, and water pump bolts. They differed in a few specifications such as the camshaft holder bolts, camshaft sprocket bolts, main bearing cap bolts, connecting rod bearing cap nuts, and intake manifold air chamber nuts.
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