Power outputs

[Hedd_Jones]

I have been eying up a Kuboto 1500 four cylinder diesel from a generator set in a corner of work.
Its a bit on the large side so a three pot might be better. It would have to pass modern emmisions and be MOT tested though.

I can see that the different engine would mean the car needed an mot, but would that include modern emissions testing standards. I would expect the test to require the relevant standard for that age of

HMM. Its a minefield of useful wooliness. 

https://www.gov.uk/government/publications/historic-classic-vehicles-mot-exemption-criteria/historic-classic-vehicles-mot-exemption-criteria#acceptable-changes

90year old petrol@ 35mpg to 1990's technology diesel @ 60+ mpg. Is this not a change of running gear to improve efficiency and environmental performance?, and thus OK?

Mind, I expect one could also argue the same about fitting a 160horse (ish) Hayabusa. Though I don't think the back axle would like it for very long.