Dont recall it running on methanol at TOTB. Pretty sure it was E85 same as most other cars. Although I could be wrong.
And there is no comparison for a dedicated drag car at a drag strip, against even a very fast road car at an airfield etc.
But at TOTB, SVM trapped 171 in the 1/4...but more importantly they ran 218mph in 1/2 mile. Those were both 888 runs too, pretty much every other GTR was on drag tyres.
Although tyre suitability and choices is a pretty wide open topic.
Next comparisons, Jurgens GTR ran 211mph, and Rocky ran 200mph. Which are massive differences.
There's no doubt on that day, SVM were making a lot more power than anyone else, even if they were not getting it to the ground as effectively as the others over the 1/4.
Was it 2500 ? Probably not...but then for the day etc....maybe no point in trying for more power, if it was already a struggle getting it to the ground.