Image 1 title

type your text for first image here

Image 1 title

Image 2 title

type your text for second image here

Image 2 title

Image 3 title

type your text for third image here

Image 3 title

Image 4 title

type your text for 4th image here

Image 4 title

Image 5 title

type your text for 5th image here

Image 5 title

Image 6 title

type your text for 6th image here

Image 6 title

Image 7 title

type your text for 7th image here

Image 7 title

Toyota 1ZZ-FE Engine

 

Production of 1ZZ-FE -the first engine that belongs to ZZ Engine Family- commenced in 1998. 1ZZ-FE was developed to meet current worldwide demands; therefore high performance, lightweight, compact size and low emissions were the major design concepts of this new inline-4 engine.

 

The cylinder block was a high pressure aluminum die casting of an open deck construction. Cylinder walls and bearing journals of the crankshaft bearing caps were reinforced with cast iron liners for increased reliability. In order to reduce the pumping loss (back pressure generated at the bottom of the pistons by engines reciprocal movement) passage holes were placed in crank shaft bearing area on the cylinder block.

 

 

1ZZ-FE was displacing 1794cc with bore and stroke dimensions of 79mm and 91.5 mm respectively. Long stroke dimension resulted in high torque output and better fuel efficiency by sacrificing high RPM operation. Static compression of 1ZZFE was 10.0:1. All internal components of the engine were carefully selected to comply with engine’s design considerations. Pistons made of aluminum were utilizing a taper and squish head design for increased fuel efficiency. In order to reduce the friction, piston skirt length shortened and fully floating type pins were used. To manufacture strong and light weight connecting rods, high strength steel was used. Connecting rod bearings were reduced in width to reduce friction. Forged crankshaft was supported by 5 journals. For reduced friction, journals were machined to minimize surface roughness and widths of crankshaft bearings were decreased.

 

Toyota 1ZZ-FE Engine

 

Cross flow type cast aluminum head used pent roof combustion chambers for increased combustion efficiency. Chain driven Dual Over Head Cams (DOHC) were equipped withVariable Valve Timing with Intelligence (VVT-i) system. A sophisticated direct ignition system (DIS) was adopted to improve ignition timing accuracy. DIS was eliminating the use distributor and ignition timing was controlled by ECU.

 

 

1ZZFE was available in different outputs according to model year and the model it was powering.  Various models received 1ZZ-FE in outputs ranging between 123hp to 134hp. Generally slight differences in the ECU, exhaust manifold and intake manifold were responsible for these alterations. The most powerful version was delivering 140hp at 6400RPM and it was used it latest Toyota MR2 and Celica SS1 models.

 

Model

1ZZ-FE

Displacement (cc)

1794

Power Output (hp)

123 - 140

Compression Ratio

10.0:1

Bore (mm)

71.0

Stroke (mm)

91.5

Years Produced

1998 - 2008

 

.