It's already been stated the stage 1's may or may not actually make 300. Argument being they only about 295. So there's already a debate over 5bhp. So to quote 'cai's will only vary 3-4 BHP' there's already an argument whether its fair testing.
Of course you can rough ideas but surely the whole point of a shoot out would be to find the 'once and for all!'
I think the ultimate test would be:
Neutral dyno
3 cars
Same/no bolt ons
Different maps tried on all 3 cars back to back
Take an average figure from 3 cars
Can't see any other way of getting a true once and for all test. Otherwise (as we all know) you will still get people waving willies over having and extra 2bhp than you
But if you go by that logic you will never fully get a fair result , because you could bring engine tolerances into the frame , on the day temperature and humidity , grade of fuel that's used.
And even if it's a linear map or standard map , torque values will be different across the rev range.
There are so many variables !
I don't think people are going to worry about 2-3 bhp unless they are dicks , I'm certainly not , but it would be very interesting to know if there is 10-20 bhp and a big difference in torque and where the torque sits in the rev range.
What we really need is one of the big mags to hold a APR v REVO shoot out but I would doubt either company would go for it especially with the bad blood from the past !