Automobile driving self-taught; an exhaustive treatise on the operation, management and care of motor cars (1912)
Russell, Thomas Herbert, 1862-1947 · Chicago, Charles C. Thompson co. · leaf 185
n the dual system un-less one wishes to assume the trouble of caring for twice the neces-sary number of plugs. Two-Point System. To increase the output of a motor, especiallyon racing cars, it has been common practice to have two sparksoccur simultaneously in the same cylinder at rather widely… … Fig. 6.—Single Cylinder Motor Arranged for Dual Ignition. an ordinary pleasure car would hardly justify the additional compli-cation and expense. By installing two points of ignition it was thought that the distancethrough which the flame had to travel would be reduced, since therewere two points…
Automobiles
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