Here is my VR6 dyno run from many years ago. It is a good example of why you can't compare different dynos. It was done in third gear. The car supposedly had a high flow cat, it definitely had been chipped by Chip Torque and had a K & N filter.



By way of comparison here is a recent dyno run of my Seat Ibiza 2.0 16V. Same type of dyno but a different one and this run was done in fourth.



If you compare these 2 dyno runs it would have the 16V making more kW's than the VR6. Go the 16V.

Of interest is the flat torque curve of the 2.0 16V. Also the A/F ratio of the VR6 whilst it might be difficult to pick up because of the different scale used it appears (to my eyes anyway) to be almost exactly the same as GolfBoy's above.