I've had these plans in my head for a little time now but never had an ability to test or implement it so far. The basic premise is that all cars have specific power to weight ratios based on a simplified formula, where you use your power in Horsepower to calculate your car weight in Kilograms. The only other restrictions would be the model year (1955), and the maximum tire width and materal (155 mm, no semi slicks). Here is the formula I was trying out:
> 80 hp -> hp x 8 = kgs min
81 > 120 hp -> 640 + (hp - 80) x 7.5 = kgs min
121 > 160 hp -> 940 + (hp - 120) x 7 = kgs min
161 > 200 hp -> 1,220 + (hp - 160) x 6.5 = kgs min
201+ hp -> 1,480 + (hp - 200) × 6 = kgs min
I would like to hear what others think of this idea and what changes they would suggest. The formula was worked out a few months ago and never tested in Beam so I have no idea how balanced the cars would be within a race scenario. But that is my rough idea.
what about expanding on this and just using real fia rules so you dont have to think of any new formulas
if you look through this https://argent.fia.com/web/fia-public.nsf/ABCF4550D7659360C12574A5003C6CA0/$FILE/Hist_App_J_76_Art_269_a.pdf
it lists the group 5 racing rules, basically you need to build a road going sports car and then modify it to race within the rules in the above document, this set is from 1976 but its a good starting point
I'd firstly be worried about the appeal of a 50's era hillclimb series
I tested out a similar idea with power to weight ratios all being the same. I designed 3 similar cars each with a power(hp) to weight(lb) ratio of 0.09. I only drag raced them, but the highest hp car won by a small amount each time. So I think there would need to be a cap of some sort instead of just 201+ hp.
I do think your formula could be simplified to be easier to understand at a glance, although I don't personally have a suggestion for how to do so.
If this idea is for a pre-show or aftershow challenge, I think the formula need to be simplified somehow. If it's for a full blown series, I think it might need a wider appeal. I'll let some others share their thoughts though.