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Why F1 cars no longer spit out flames from the exhaust?

Why do current Formula 1 racing car engines not spit out flames from the exhaust like they did in the past?

Excessive gasoline was used to cool down the pistons and the combustion chamber. Pushing through a lot of petrol enabled this. Nowadays with the fuel management being a crucial element in F1 races it is no longer feasible as it wastes gasoline and through this, performance. In addition with turbo engines you don't need that much extra cooling any longer. These are the main reasons F1 cars no longer spit out flames from the exaust.

source:

Written by Janita on Friday July 8, 2016
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