Gridpedia changed Engine
Turbo boost limited to 4.0 bar; 3.5-litre naturally aspirated engines allowed again
A pop-off valve capped boost pressure, and a 3.5-litre atmospheric class returned with its own trophies (Jim Clark and Colin Chapman cups). Source
1987 rule changes
1 change recorded for 1987. 1987 standings · results · ← 1986 · 1988 →
advertisement