Minnesota's Only Focus Enthusiast Group
https://www.mnfocus.com/forum/
http://en.wikipedia.org/wiki/DuratecWiki wrote:The 2.5 L and 3.0 L V6 Duratecs are evolutions of the same design, first used in the 1994 Ford Mondeo. It is a modern aluminum DOHC V6 with a 60° bank angle. The primary engineering input came from Porsche, who were developing a similar V6 before selling the engineering to Ford, and Cosworth, who helped with cylinder head manufacturing.
The Jaguar AJ-V6 engine is similar but adds variable valve timing. Mazda's AJ version also has this feature.
Duratec 25
The Duratec 25 is a 2.5 L (2544 cc) 60° V6 and was introduced in 1994. It was developed for the Ford Mondeo and used in the Ford Contour, Ford Cougar, Jaguar X-Type, and others. The Duratec 25 was on the Ward's 10 Best Engines list for 1995 and 1996, and the SVT version made the list for 1998 and 1999.
An SVT version produced 195 hp (145 kW) and 165 ft·lbf (224 N·m) in 1998. Further improvements were made in 1999 that raised power output to 200 hp (149 kW) and 169 ft·lbf (229 N·m) and were carried over in the 2000 model. The SVT engine was used in the 1998-2000 Ford Contour SVT.
Bore is 82.4 mm and stroke is 79.5 mm on most 2.5 L Mondeo-derived engines for a total of 2544 cc. Mazda used the same block and camshaft in their 2000 MPV. However, they reduced the size to 2.49 L to keep under a 2.5 L tax cap in Japan. It was replaced in 2002 with the larger 3.0 L Duratec 30-based Mazda AJ.
Duratec 30
The 3.0 L Duratec 30 or Mazda AJ was introduced in 1996 as a replacement for the 232 in³ (3.8 L) Essex V6 in the Taurus/Sable. It has 2967 cc of displacement and produces between 200 and 240 hp (150 and 180 kW). The same basic engine is used in the Jaguar S-Type, Lincoln LS, Mazda MPV, Mazda6, Mondeo ST220 and many other Ford vehicles. It is essentially a bored-out (to 89 mm) Duratec 25 and is built in Ford Motor Company's Cleveland, OH #2 plant. A slightly modified version for the Ford Five Hundred entered production at the Cleveland, OH #1 plant in 2004.
Beginning in 2004, Ford dropped the old 4-cylinder Zetec engines in favor of Mazda's MZR design. Thus, 2005 and present Duratec 4-cylinder engines are Mazdas. This includes the 2.0 L Duratec 20 and 2.3 L Duratec 23. The engine is currently built by Ford in Chihuahua, Mexico, Dearborn, Michigan, Valencia, Spain and Nanjing, China.
the MZR line is what Mazda calls their engines ford just put the duratec name onto it: http://en.wikipedia.org/wiki/Mazda_MZR_engineThe Duratec 23 is a 2.3 L (2261 cc) version of the Mazda-designed Duratec 20.