See an excellent timing chain tensioner “DIY” with photos, for the 1ZZ-FE. The heads’ tapered squish area design forced a mixture of fuel and air at the spark plug, allowing a high compression ratio of 10:1 on regular gas. The 1ZZ-FE had a long stroke to help with torque (79 mm bore x 91.5 mm stroke), with twin overhead cams and four valves per cylinder. Transmissions used with the 4A-GE were the close-ratio five-speed stick and the four-speed automatic.Ī full description of the 4A-FE and 7A-FE engine is at the Toyoland site.ġ998 models benefitted from a new engine family, the ZZ, which used an aluminum block with iron cylinder liners, a weight-saving open deck, and a full-size main bearing girdle to strengthen the bottom end. This latter engine used dual cams, a central spark plug (“semi-hemi”), and variable induction - a series of valves in the induction ports to improve intake velocity at low engine speed, andincrease airflow at higher speeds. The 1.6 liter 4A-GE was a higher-compression (9.4:1 rather than 9.0:1), electronically fuel injected, 16-valve version of the 4A, with 112 horsepower and 97 lb-feet of torque. The 1983 cars gained a new 1.6 liter 4A engine was introduced. 1, 2, 4, 7) shows the generation of the engine within its design family for example, the 4A had gone through several major changes, starting with carburetors, then fuel injection, then five valves per cylinder. The convention for engine names is that the first digit (e.g. Torque went up by two foot-pounds in the same time, from 115 to 117. By 1996, less peak power was available, but you could get it more quickly: 105 hp at 5,200 rpm. As emissions laws and tuning changed, horsepower figures moved around slightly, but not enough that the average person would notice: in 1993, horsepower was 110 hp at 5,600 rpm. Also see the C-50 and C-52 manual transmissions and the A245E automatic transmission.Ĭorollas made from 1993 to 1997 had two engine choices, the 1.6 liter 4A-FE and the 1.8 liter 7A-FE ( click here for many details, comparisons, and diagrams!).

Calibre 2018 engind