Nissan KA engine
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The KA engine is a 2.4 L (2389 cc) straight-4 piston engine from Nissan. It has an iron block and aluminum SOHC or DOHC 12 or 16-valve cylinder heads.
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[edit] KA24E
The KA24E was a SOHC 12-valve engine produced from July 1988 through January 1996. It uses SEFI fuel injection, and features forged steel connecting rods, an internally balanced one-piece cast crankshaft, and a cast aluminum intake manifold.
[edit] Specifications
- Bore × Stroke: 89.0 × 96.0 mm
- Max power: 140 hp (95 kW) @ 5600 rpm
- Max torque: 152 ft·lbf (180 Nm) @ 4400 rpm
- Valve Configuration: SOHC, 12 valves
- Compression ratio: 8.6:1 (9.1:1 for early 1989 240SX )
[edit] Applications
- 1989–1990 Nissan 240SX
- 1990–1997 Nissan Hardbody Truck
- 1989–1992 Nissan Axxess
- 1990–1992 Nissan Stanza
- 1989–1992 Nissan Pintara / Ford Corsair
[edit] KA24DE
The 2.4 L (2389 cc) KA24DE was used in many Nissan cars and trucks. Most KA24DEs bound for the US were built in Aguascalientes, Mexico, with the exception of the 240SX and 1994-95 Altima, which were manufactured in Fukuoka Prefecture, Japan.
[edit] Specifications
- Bore × Stroke: 89.0 × 96.0 mm
- Max power: 150 hp (125 kW) @ 5600 rpm
- Max torque: 160 ft·lbs (217 N·m) @ 4400 rpm
- Valve Configuration: DOHC, 16 valves
- Compression ratio: 9.9:1, 9.2:1, 9.5:1
[edit] Applications
- Nissan Xterra
- Nissan Frontier
- 1993-2001 Nissan Altima
- 1991-1998 Nissan 240SX
- 1997-2000 Nissan R'nessa (4WD model, Japan)
- 1998-2001 Nissan Presage U30 (Japan)
- 1999-2001 Nissan Bassara U30 (Japan)
- 1993-1997 Nissan Bluebird
- Isuzu COMO (Japan)
[edit] KA24ET & KA24DET
This is the unofficial name for a turbocharged KA engine. This engine was not officially produced by Nissan Motors. Enthusiasts not satisfied with the stock horsepower rating in their USDM 240SX, U12 Stanza or Altima, would build or buy turbo kits for the engine. A stock KA engine (valves, pistons, and rods) is known to reliably support up to 300 horsepower with proper engine tuning. And the block is said to be able to support over 800 horsepower before the cylinder walls split from the pressure. Further modifications include custom forged pistons, rods, and cams. These upgrades can help produce extremely high horsepower and torque numbers. Some modified KA's produce well over 700hp. And because of its long piston stroke, the KA24 is capable of very high torque numbers, often exceeding its horsepower rating. A turbocharged KA24 can produce more torque than any of the popular 4 cylinder engine choices for the 240SX (SR20DET, CA18DET, and KA24(D)E). Many USDM 240SX owners are choosing this option over the more expensive SR20DET, and CA18DET conversions. Most people perceive the KA24 as a mere "truck engine", that has no potential for power. These same people also think it's not as reliable as the original 180SX and Silvia engines. These opinions has been proven wrong on many occasions from many different tuners. The KA24 has plenty power potential when tuned correctly. Most of the time, this power can be had on a budget. Reliability has been a continuing argument about a turbocharged KA24. The pistons and rods are usually blamed as the weakest links with the engine. Recently, many KA24 tuners have been exceeding the 300hp "limit". One tuner even went as far as 500+ horsepower on the stock internals. All KA24 tuners agree that superior engine tuning and past engine care determines the reliability of a turbocharged KA24.
For more information about force-inducted KA24 engines, visit http://www.ka-t.org.
[edit] See also
[edit] External links
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