Here's what I have from my T4 brochure library:

Diesel 1.9 litre (non-turbo)
61 hp @ 3700 RPM
127 Nm Torque @ 1700 - 2500 rpm
4 Cyl.

Diesel 2.5 litre (non-turbo)
78 hp @ 3700 rpm
164 Nm Torque @ 1800 - 2200 rpm
5 cyl.

Diesel 1.9 litre Turbo (Known as TDI in US)
70 hp @ 3700 rpm
148 Nm Torque @ 1800 - 2400 rpm
4 cyl.

I picked up a brochure on the Turbo Diesel in France this past January...its 
about 9" tall by 3 " wide...on the cover is the front end of a T4 delivery 
van....with the message "Open here"....the hood on the brochure cover opens 
up to reveal the message "Turbo and more!"

Hope this helps.

Ric