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Show Warming Intake Helps Engine's Acceleration Warming the intake manifold will aid the engine's ability to pick up f speed very materially, according to recent tests conducted by the bureau J of standards. The same tests showed that even a considerable difference in -! jacket water temperature has hut ;l slight effect upon car acceleration. 3 The tests were made on a six-cylinder 192G engine. A change in the jacket water temperature from 'J12 '! degrees to 54 degrees appeared to ; make but slight difference, while a change of the tPinperatui - nf the intake in-take manifold from 150 degrees to 172 degrees resulted in marked im-' n provement in acceleration. -1 |