EJCP.PARTS

MAZDA KL-DE 2.5

The 2.5 L (2497 cc) KL family uses an 84.5 mm (3.33 in) bore and 74.2 mm (2.92 in) stroke. It includes the Japan-only KL-ZE, which produced 199 hp (149 kW) and 165 lb·ft (224 Nm). Another variant, the KL-DE (also known as the KL-03 outside the USA, and fitted to 2.5 litre Ford Probes) was the worldwide version, with 164-174 hp in various applications. In 1998 a revised version of the KL known as the KL-G4 was used in the 626. It featured solid lifters, a cast crankshaft to reduce rotating mass and a reworked intake system. The distributor was replaced with a Ford EDIS coil-pack ignition. Mazda introduced a key technology with these engines, known as the Variable Resonance Induction System (VRIS). A series of two butterfly valves coupled with electronically controlled actuators varied the volume and length of a resonant chamber within the intake manifold. The valves actuate at particular engine frequencies (i.e. rpms) to produce optimal torque/horsepower output at any given engine speed. The valve operates to create three specific first-order resonant frequencies that increase cylinder air charge. All three resonances are used from 0 to 6250 rpm (6800 for the KL-ZE). Above that threshold, the first primary resonant chamber is again used, but at this engine speed the pressure wave from the second-order resonant frequency aids in charging the cylinder.[WIKI]

SIZES BLOCK MATERIAL HEAD MATERIAL CAM TYPE FUEL SYSTEM
2.5 ALUMINUM ALUMINUM DOHC MPFI

ITEMS

BRACKETS EXHAUST MANIFOLD INTAKE MANIFOLD OIL PAN PISTON
SENSORS TIMING COVER TIMING SET VALVE COVER VALVE INFORMATION

LISTING TEMPLATES

SIZES COMPATABILITY ENGINE TEMP HEAD TEMP CRANK TEMP NOTES
2.5 DOHC 97-00 MILLENIA ***** ***** ***** ***********
2.5 DOHC 98-00 626 2.5A 2.5A ***** MANUAL
2.5 DOHC 00-02 626 ***** ***** ***** MANUAL
2.5 DOHC 01-02 626 ***** 2.5A ***** AUTOMATIC
2.5 DOHC 01-02 MILLENIA ***** ***** ***** *****

VALVE INFORMATION

MAKE MODEL YEAR RANGE
****** ******* *******
TYPE HEAD DIAMETER STEM DIAMETER O.A.L. GROOVES LOCATION
EXHAUST 27.6 5.95 95.3 1 *MAZ25AU
INTAKE 31.9 5.95 94.3 1 *MAZ25AU

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