El Paso herald. (El Paso, Tex.) 1901-1931, 1914-09-19
AN ''EIGHT" IS
NEWEST MOTOR
Idea Is Adopted
For Automobiles; Smaller
Motor Does the Work.

Sly months ago such a thing as an
eight cylinder motor was seldom men
toned. except IN connecLlOn with aero
planes. but OF late eight cylinder "
shaped motor talk has filled the air II
all the rumors are 10 be believed, many
a high class motor car manufacturer
I is working on an eight
with the "V' shape eight cylinder
engines the cylinders are set at an
angle with one another, and not all in
a row along the crank chamber. The
engine thus presents the appearance OF
two separate four cylinder engines.
of course the eight cylinder engine
is nothing particularly new in the
aeronautical world. II is quite an "old
stager." as some Of the earliest aero
plane motors were Of this type. such as
the Antoinette, the E. " V, the WOlse-
ley the j. A p
} An English engineer who has made
a study OF the eight" points out its
points in the following manner
Just as in the old days, and even
at the present time, one always de-
scribes the excellence Of the six. cylin-
der engine by comparing 1t with the
four cylinder, so we viii now discuss
the eight in terms Of the six. over
which it has several pronounced ad-
vantages-
Makes short Motor.
in length, which is the only dimen-
sion that matters, within reasonable
limits, on a motor car, the eight cylin-
der is preferable by a matter Of 80 per
cent The space available for body
work upon the chassis, is therefore
much greater, and this in itself is
point of Importance But OF even more
value still are the advantages which
follow on the use Of short engine. The
crankshaft has all its throws in one
plane. and is, therefore, cheaper TO
manufacture than the crank shaft OF
six cylinder engine, the throws OF
which lie in three planes, as each pair
Is at an angle OF 20 degrees 10 the
other
Again. the crankshaft being shorter
possesses less tOrtiOnal elasticity; there
fore periodic vibration is greatly re-
duced In like manner the camshaft is
shorter. and periodic vibrations arising
from this source are also reduced No
great length OF inlet piping is required.
as the four V formed cylinders lend
themselves readily TO a piping arrange
ment which gives each cylinder prac-
tically an equal chance Of getting a
full charge Of gas
Power for power. and allowing
equal strength Of material. the eight
cylinder engine is lighter than the six.
owing TO the shorter crank case,
lighter crank shaft, lighter flywheeL
shorter camshaft and higher reciprO-
eating parts (the cylinders being
aThe eight cylinder has a third bet
ter torque.
Balance Is same.
Theoretically. both engines are
equal in balance: that is 10 say. both
are perfect But periodic crankshaft
vibration is far more likely to occur in
the six than in the eight cylinder. In
the former IL can only be prevented by
special balancing. or BY the use OF
very strong crankshafL
IN the eight cylinder engine each
row OF cylinders can be treated as a
separate unit. and il the valve cham
bers face one another il will be seen
that the water circulation has no ten
dency to form pockets round the
valve Each engine unit being smaller,
a thermo syphOn system Of circulation
can be used without requiring the ra-
diator TO be placed very high above
the engine. In other words. il the in
clinatiOn Of the water outlet from the
head OF the cylinders is TO be the same
in each case, the six cylinder engine
the radiator more than half
as high again above il as the eight.
Shorter oil passages and a smaller
length Of crankshaft are advantageous /
in this respect.
IN BRIEF. the great advantages OF |
the eight cylinder engine are its small |
size. light weight. excellent tOrque, /
perfect balance and good carburetion-" |