Originally posted by procyon:
fastcougar,
Very interesting SAE article. They were using a destroked version of the regular 2.5L roller finger follower engine.

You might not know it, but they are currently making 2.0L 24V V6 Duratec engines at Cleveland Engine Plant. These are for the Jaguar X-Type. The Jaguar and Lincoln Duratec V6 engines all have bucket tappet style heads instead of roller finger followers.
3.0L for the Lincoln LS
3.0L for the Jag XJ
2.5L & 3.0L for the Jag S-Type
2.0L, 2.5L, and 3.0L for the Jag X-Type
The 2.0L is a destroked 2.5L.



I found it very interesting too.
Do you have any more where that came from? I would be very curious to know what cams they used as well as how to get those adjustible cam gears.

Someone should email this to Travis by the way. There are several references to the engines sensitivity to intake manifold tuning with regards to diameter and length.
**There is even a reference to the mean piston speed being different between the 2.5L and the 3.0L engines**

Procyon, how is it possible to have a different mean piston speed with the same stroke though a different bore?
I confess I don't understand it either but this is what Terry Haines referred to also.


Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black