AstinaGT Forums - View Single Post - ABOUT: guide to Mazda V6 engine types + specifications

skippy · 29-04-2005, 04:42 PM

Sixes
Mazda, though few people acknowledge it, also make a good selection of strong hi-performance six cylinder engines - and they're all compact size V6s.

The most scorching motor of the group is the KJ-ZEM - Mazda's exclusive Miller-Cycle engine. Displacing only 2.2 litres, this DOHC engine uses a screw-type supercharger and dual air-to-air intercoolers to boost its way to making an impressive 164kW at a laid-back 5500 rpm. It's an ultra smooth engine as well, as it was designed for use in the luxurious Eunos 800 saloon.

The second highest power output of Mazda's six cylinder range - at 149kW - is shared by the 3 litre DOHC JE-ZE, and the high-tuned 2.5 litre DOHC KL-ZE engine. These engines are configured to suit rear and front wheel drive respectively, however the KL-ZE is the more sports oriented engine, with its peak power achieved at 6500 rpm - 500 higher than the JE-ZE. The original JE series engine was released way back in early-mid '80s and used a conventional SOHC head and fuel injected intake system to develop up to 116kW at 5000 rpm - those fairly low peak power revs indicative of the poorer flowing head in comparison to the later DOHC versions. An engine released in various mid-sized cars such as the swoopy MX-6, the FWD J5-DE engine features a DOHC configuration on top of a 9.0:1 compression ratio, 2.5 litre block, and pushes out 211Nm at 3500 rpm with 119kW available at 6000 revs. It's not a hugely common motor, but it is very strong.

Another engine produced with the intention of powering a Eunos (the 500 compact saloon), the front wheel drive KF-ZE 2 litre double over head cam powerplant is good for up to 180Nm at 5500 and 119kW at 6500 revolutions per minute. Once again, smoothness was one of this engine's fortes since it came equipped to the luxo Eunos. The littlest V6 in the Mazda line-up is that fitted to the top-line Eunos 30X sports car. Displacing only 1.8 litres and using a 9.2:1 compression ratio, the K8-ZE engine offers excellent flexibility for its capacity category. It is also good for hitting out up to 157Nm at 4500 revs, and 108kW at a frantic 7000! 'Revy' is a good way to describe these unburstable little sixes.

29-04-2005, 04:42 PM	#73
skippy Resident Dissident Join Date: Sep 2004 Location: Ole Sydney Town Car: Alfa 156 TS Posts: 1,197	Sixes Mazda, though few people acknowledge it, also make a good selection of strong hi-performance six cylinder engines - and they're all compact size V6s. The most scorching motor of the group is the KJ-ZEM - Mazda's exclusive Miller-Cycle engine. Displacing only 2.2 litres, this DOHC engine uses a screw-type supercharger and dual air-to-air intercoolers to boost its way to making an impressive 164kW at a laid-back 5500 rpm. It's an ultra smooth engine as well, as it was designed for use in the luxurious Eunos 800 saloon. The second highest power output of Mazda's six cylinder range - at 149kW - is shared by the 3 litre DOHC JE-ZE, and the high-tuned 2.5 litre DOHC KL-ZE engine. These engines are configured to suit rear and front wheel drive respectively, however the KL-ZE is the more sports oriented engine, with its peak power achieved at 6500 rpm - 500 higher than the JE-ZE. The original JE series engine was released way back in early-mid '80s and used a conventional SOHC head and fuel injected intake system to develop up to 116kW at 5000 rpm - those fairly low peak power revs indicative of the poorer flowing head in comparison to the later DOHC versions. An engine released in various mid-sized cars such as the swoopy MX-6, the FWD J5-DE engine features a DOHC configuration on top of a 9.0:1 compression ratio, 2.5 litre block, and pushes out 211Nm at 3500 rpm with 119kW available at 6000 revs. It's not a hugely common motor, but it is very strong. Another engine produced with the intention of powering a Eunos (the 500 compact saloon), the front wheel drive KF-ZE 2 litre double over head cam powerplant is good for up to 180Nm at 5500 and 119kW at 6500 revolutions per minute. Once again, smoothness was one of this engine's fortes since it came equipped to the luxo Eunos. The littlest V6 in the Mazda line-up is that fitted to the top-line Eunos 30X sports car. Displacing only 1.8 litres and using a 9.2:1 compression ratio, the K8-ZE engine offers excellent flexibility for its capacity category. It is also good for hitting out up to 157Nm at 4500 revs, and 108kW at a frantic 7000! 'Revy' is a good way to describe these unburstable little sixes.