brianfinn wrote:
Cutting a long story short its like Armageddon under the head ......will a 2.8 go straght in without modifying ?
You would need to change some of the harness and the ECM and the turbo as the 2.8 uses a variable vane turbo, 2.5L uses 11 volt glowplugs without a controller..just two large relays that click on.
On the other hand I cannot think of any reason why the 2.8 motor cannot be dropped in and keep the original fixed vane turbo and dump valve and 11 volt glowplugs and all the original electronics.....should get a bit more torque but obviously not the full potential of the 2.8 variable turbo .Probably need some tuning of the ECM and need to check the parts fiche for other parts such as the CP3 high pressure compressor. MAP sensor may be different.
The 2.8 uses a water cooled EGR but the EGR can in any case be easily disabled on the 2.5L.
Not sure about the bell housing and clutch connecting the old manual gearbox to the motor...most 2.8Ls will be autobox.