The early version of this engine 3VZ-E has SOHC aluminum cylinder heads and original pistons. The compression ratio of these engines is only 9.0:1. The redeveloped version and more performance engine the 3VZ-FE was produced from 1992 to 1997. The 3VZ-FE got aluminum DOHC heads with the increased diameter of the intake valves to 34 mm from 33 mm.

The Toyota VZ engine family is a series of V6 gasoline piston engines ranging from 2.0 to 3.4 L (1,992 to 3,378 cc) in displacement and both SOHC and DOHC configurations. [1] It was Toyota's first V6 engine, being made as a response to Nissan’s VG engine, one of Japan's first mass-produced V6 engines.

2021年7月7日 · In this guide we’re going to discuss 3VZE engine specs, common problems, reliability, and performance upgrades. Well, we don’t intend to be too harsh on the 3VZE engine, but none of these specs are impressive. It’s a pretty underwhelming engine to power larger vehicles like the Toyota 4Runner and T100. A cast iron block does offer good strength.

2023年11月30日 · While there were both SOHC and DOHC configurations, the 3VZ-E we’ll discuss here was only sold as an SOHC unit. Introduced in 1988, the Toyota 3.0 V6 3VZ-E engine was used in the brand’s utility vehicles, and for the first time, these models were powered by an engine with more than four cylinders.

A modified 3VZ-E iron-block engine coupled with aluminum DOHC 24 valve heads forms the basis of the design. It has cast connecting rods and a crankshaft made of forged steel. Three sets of runners for both heads are fed by Toyota’s ACIS variable-intake system through a split-chamber upper intake plenum.

2016年7月9日 · In 1992, the production of a more modern 3VZ-FE engine has started. The differences between 3VZ-E and 3VZ-FE are the new DOHC heads with two camshafts for each. Differences between 3VZ-FE and its precursor 2VZ-FE are the following: a new forged crankshaft with 82 mm stroke, new pistons, the compression ratio of 9.6.

Page 2 EG–2 ENGINE TROUBLESHOOTING – ENGINE MECHANICAL ENGINE MECHANICAL DESCRIPTION EG0EF–01 The 3VZ–FE engine is a V–6, 3.0 liter, DOHC 24–valve engine. Page 3 EG–3 ENGINE TROUBLESHOOTING – ENGINE MECHANICAL The 3VZ–FE engine has 6 cylinder in a V arrangement at a bank angle of 60 .

The low-angle DOHC cylinder heads on the VZ Series were designed by Yamaha Motor to give excellent low- and mid-range torque. The series uses cast iron engine blocks, forged steel crankshafts, and in the third-generation, cast iron main bearing support girdles.

The 3VZ-FE features a cast-iron cylinder block with a four-bearings crankshaft and two aluminum heads with two camshafts (DOHC) and four valves per cylinder (24 in total). The engine is equipped with SFI (Sequential Multiport Fuel Injection) system and an electronic ignition system with a mechanical distributor.

2003年11月6日 · What are the practical limits when it comes to performance modifying a 3VZ-FE iron block V6 motor? I've done nothing to it as of yet, and I'm fishing for some general ideas as to what can be done and what can't. The motor runs like new and has 98K miles on it, and has been driven very gently in general.