1961 rule changes

3 changes recorded for 1961. 1961 standings · results · ← 1960 · 1962 →

Oil catch tanks, dual braking circuits and roll bars required

Cars had to carry a roll-over bar above the driver's head, a dual-circuit braking system and an oil catch tank. Source

introduced Engine

1.5-litre naturally aspirated engines, 450 kg minimum weight

Engine capacity fell to 1,500 cc unsupercharged (the former Formula 2 limit), with a minimum car weight of 450 kg, self-starters and a roll-over bar required. The formula ran to 1965. Source

changed Points

Win worth nine points

Points became 9-6-4-3-2-1, a system used until 1990. Source