7.6 What is the effect of temperature and load?
Description
This article is from the Gasoline FAQ, by Bruce Hamilton with numerous contributions by others.
7.6 What is the effect of temperature and load?
Increasing the engine temperature, particularly the air-fuel charge
temperature, increases the tendency to knock. The Sensitivity of a fuel can
indicate how it is affected by charge temperature variations. Increasing
load increases both the engine temperature, and the end-gas pressure, thus
the likelihood of knock increases as load increases. Increasing the water
jacket temperature from 71C to 82C, increases the (R+M)/2 ONR by two [111].
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