Chrysler Neon engine

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The Chrysler Neon engine is a small straight-4 piston engine designed originally for the Dodge Neon compact car. It was loosely based on the Chrysler K engine, sharing the same 87.5 mm bore. The SOHC cylinder head on the 2.0 is similar to that on Mitsubishi's "Orion" 4G15B, and the DOHC head from the 2.0 and 2.4 is similar to Mitsubishi's "Sirius" 4G63B. The Neon engine itself is the loose basis for the Tritec engine.

Beginning in 2005, the Neon engine will be phased out in favor of the new Global Engine Manufacturing Alliance joint-venture engine.

The 2.0 and 2.4 L varants are built at Saltillo Engine in Ramos Arizpe, Coahuila, Mexico. The 2.0 is also built at Trenton Engine in Trenton, Michigan.

Contents

[edit] 1.8

A 1.8 (1796 cc) L variant is made in the Trenton, Michigan engine plant for export (non-US) Chrysler Neons. It produces 115 hp DIN (85 kW) and 112 ft·lbf (152 N·m) and meets Euro III standards.

[edit] 2.0

The 2.0 L (1997 cc) version of the Neon engine, was the first offered. Production began in 1994 in Trenton, MI, and it was used in many Chrysler Corporation vehicles. It has an 87.5 mm bore and 83 mm stroke, and is available in both SOHC and DOHC 4-valve versions.

[edit] A588

The A588 is the SOHC version. Output is 132 hp SAE (98 kW) at 5600 rpm with 130 ft·lbf (177 N·m) of torque at 4600 rpm. It has a cast iron engine block and aluminum SOHC cylinder heads. It uses SFI fuel injection, has 4 valves per cylinder with roller rocker arms and features fracture-split forged powder metal connecting rods, one-piece cast camshaft, and a reinforced plastic intake manifold (although a few of the 1996 engines received an aluminum intake manifold due to a shortage of the plastic parts). They were painted black, but it's easy to see the casting marks and prints on the manifold. The aluminum version is much prized among enthusiasts as it's easy to port and polish for increased flow characteristics.

Applications:

[edit] D4RE

The DOHC D4RE 2.0 produces 140 hp SAE at 6500 rpm with 130 ft·lbf of torque at 4800 rpm. It has a cast iron engine block and aluminum DOHC cylinder heads. It uses SFI fuel injection, has 4 valves per cylinder with roller rocker arms and features fracture-split forged powder metal connecting rods, a one-piece cast camshaft, and an aluminum intake manifold.

The version used in the Chrysler PT Cruiser and Dodge Neon features a cylinder head with the intake ports facing the front of the vehicle, like the SOHC A588. Versions (420A) used in Mitsubishi-designed chassis, such as the Dodge Avenger and Mitsubishi Eclipse, have the intake ports facing the rear of the vehicle. Most other specifications are identical, however, and even some head components (such as the rocker cover) are compatible.

Applications:

Specifications
  • Number of Cylinders: 4
  • Cylinder Configuration: In-line
  • Number of Valves: 16
  • Displacement: 2.0 L (1996 cc, 122 in³)
  • Compression Ratio: 9.6:1
  • Camshaft Configuration: DOHC
  • Power: 140 hp @ 6500 rpm (150 hp for Neon)
  • Torque: 130 ft·lbf @ 4800 rpm (133 ft·lbf for Neon)
  • Fuel Delivery: Multi-Port fuel injection
  • Bore×Stroke: 3.44×3.27 in (87.5×83 mm)

[edit] 2.4

[edit] EDZ

The 2.4 L (2429 cc) EDZ engine is very similar to the 2.0, sharing the same bore and DOHC cylinder head, but it has a taller block and longer 101 mm stroke. It also uses balance shafts to smooth vibrations and is built in Saltillo, Mexico. Output was up to 140 hp when production started in 1994 for the 1995 model year. As of 2004, output is 147 hp SAE (110 kW) at 5200 rpm with 165 ft·lbf (224 N·m) of torque at 4000 rpm.

It has a cast iron engine block and an aluminum DOHC cylinder head. It uses SFI fuel injection, has 4 valves per cylinder with roller followers and features fracture-split forged powder metal connecting rods, a one-piece cast camshaft cast, and an aluminum intake manifold.

Applications:

[edit] EY7

The EY7 and the EDZ are similar, except for the EY7's SOHC cylinder head.

Specifications
  • Number of Cylinders: 4
  • Cylinder Configuration: In-line
  • Number of Valves: 16
  • Displacement: 2.4 L (2429 cc)
  • Compression Ratio: 9.00:1
  • Camshaft Configuration: SOHC
  • Power: 142 hp @ 5500 rpm
  • Torque: 155 ft·lbf @ 4000 rpm
  • Fuel Delivery: SFI
  • Bore×Stroke: 3.41×3.94 in (87.5×101 mm)

[edit] 2.4 Turbo

The turbocharged EDV/EDT is similar to the regular EDZ. Output is 230 hp SAE (172 kW) at 5300 rpm with 250 ft·lbf (339 N·m) of torque at 2200-4400 rpm.

The engine, code A855, has a cast iron closed deck block and split crankcase. It uses an 8.1:1 compression ratio with Mahle cast eutectic aluminum alloy pistons, forged connecting rods with cracked caps and threaded-in 9 mm rod bolts, and a cast high-hardness steel crankshaft. The cylinder head is cast aluminum, with the cylinder heads being a 48-degree pent-roof design with a partial cloverleaf between the intake valves. The valves are actuated by hydraulically-adjusted rocker arms with roller cam followers.

The SRT-4 and PT Cruiser Turbo use the same engine block and heads The intake manifold, turbo plumbing, and intercooler are all different. The cast-aluminum 8-row Valeo intercooler is mounted in the front, and the reverse-rotation Mitsubishi TD04LR-16Gk turbocharger has a 6 cm² turbine inlet. The turbocharger compressor housing features a built-in bypass valve, and the turbo housing is cast into the exhaust manifold with a loop-around flow pattern. The stock SRT-4 has a maximum boost level of 15psi Applications:

[edit] See also

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