LE torque curve seems strange now.

[fudje]

The original values in there had a progression that didn't make much sense for a torque curve, and also continued beyond any – A little checking shows that if you had a power curve instead of a torque curve you might have got your figures from the QE2 (1050Nm at 500RPM!), in which case the interesting parts of the curve are missing

That said, the numbers I put in are far too optimistic on the low end. I only had figures at 2200, 4200, and 6400rpm to go on, the tech data NaN linked to gives a much different picture of what the torque curve should look like.

In any case, if you calculate Nm figures below about 80 or so with 300 <= rpm <= 6000 you should probably double check your maths.