my red nova
800 kgs
270bhp
= 337.5 bhp per tonne
my 3 door cossie should be (dont know the power for certain yet with t34 etc)
1200kgs
330bhp
= 275
my mini im building
600kgs
500bhp
= 833 per tonne
Really you need to allow for the driver as well though, thats why bikes power to weight ratio is so meanignless when done without a rider as the rider adds about 50% to the weight!
To get my cossie to the same power to weight as my nova i would need 400bhp
To get my cossie to the same power to weight as my mini i would need 1000bhp