I have been trying to figure this out, I know I have heard people say the engine in the Mazda3 is a duratec and is identical to the 2.3L in the Focus. There are all types of claims out there. I have searched and found claims stating that the 2.3L is Mazda engineered. And otheres stating that the 2.3L is Ford engineer.
Here is what I found:
http://www.ofoc.ca/news/news_2003_10.html
The new engine family also is leading the way in modern, cost-efficient manufacturing. Four plants on three continents will build Duratec I-4s, and all will benefit from the efficiencies and quality improvements offered by flexible manufacturing techniques.
A number of Ford and Mazda brand vehicles currently offer or will offer the new engine in both "east-west" and "north-south" configurations for front- and rear-drive applications.
In addition to the Focus, these applications include:
* Ford Mondeo, with 1.8- and 2.0-liter versions, built at Valencia Engine Plant in Spain.
* Ford Ranger, with the 2.3-liter variant built at the Dearborn (Mich.) Engine Plant.
* The restyled Mazda MPV minivan built at Mazda’s Hiroshima plant in Japan.
* The all-new Mazda6 (sold as the Mazda Atenza in some countries), which is sold with displacements of 1.8-, 2.0- and 2.3-liters, depending on the market.
* Both the Ford Escape Hybrid, which will debut next summer, and Ford Futura, which will launch in 2005, will use derivatives of the 2.3-liter engine.
And here is what someone else found:
The 2.0 and 2.3L Inline 4s in the Mazda 3 are part of Mazda's MZR engine family, which is offered worldwide in displacements of 1.4, 1.6, 2.0, and 2.3L for the gasoline engines. Also offered from this line are 1.4, 1.6, and 2.0L common rail diesel engines. I believe the diesel versions are SOHC. The 2.0L 4cyl. in the current Focus is from Ford's Zetec line, and the 2.3L offered in 2004 for the ZTS and ZTW is a reworked Mazda MZR engine. Its subsequently been renamed the Duratec 23E.
http://www.edmunds.com/new/2004/for...rticleId=101294
The Ford engine, the Duratec23E, is found in the 2003+ Focus. It is designated a PZEV (partial zero emissions vehicle) engine. This Ford version of the Mazda MRZ engine was apparently co-developed by Mazda and Ford, using casting technologies developed by Cosworth.
What is your guys take on this? If you have links post them.
I don't wanna win any arguements, just wanna know the facts about my car.
---Herb---