Omaha daily bee., 1914-09-27
EIGHT CYLINDER CADILLAC
New Type Automobile First Of Its
Kind Made in United States.
REAL ENGINEERING ADVANCE
It's V-shapc Motor Has one Crank
shaft, one Cam shaft aud
Tests Better Than sixty
Horse Power.

company becomes the first American
manufacturer to develop an eight-Cylinder
,ar for the market, and the only manu-
facturer whose latest product embodies
vital advance in engineering and in
motoring.
Thus are set at rest the rumors which
for weeks have presumed to forecast
Cadillac intentions and plans.
The first high-grade car at popular
price was the original Cadillac Thirty
and this car opened up a new field to the
industry.
For year the Cadillac was the only
car to carry an electric starting and light
ing system-a feature that has become
an important part of the regular equip
ment of almost every car
To Improve Power.
As the Cadillac statement announcing
the new car puts 1t:
This company has never relaxed its
pursuit Of that power principle which
would prove TO be ultimate and final.
I'VE sought the medium by which the
Cadillac would be endowed, not with ap-
proximate freedom from gear shifting,
or approximate hill-cllmbing ability on
high, or approximately swift accelera-
OF these three characteristics.
THE Cadillac company has given seri-
Gus consideration TO every reputable type
of MISUNDERSTANDING TO scrutinize with
scientific impartiality the virtues and the
limitations of each and every one alike.
building and experimenting, IN turn,
with every type from the single cylinder
10 the six, and from the poppet to the
aIxv. Ia.rn
been carried forward to the highest form
of frequent impulse motor-the V-type
elght-cylinder.
The principal advantage of the eight
cylinder engine is, of course, its continu-
GUS torque and continuous uniform gen
Grafton of power. There is no pause or
lapse between power impulses, Of which
there are eight in each complete cycle
of the engine, four to every revolution
of the crankshaft, or one every quarter
turn. The firing alternates from side
to side The continuous tongue produces
an almost utter absence of vibration, at
both high and low speeds.
Advantages Classified.
w G. Aston, writing of the V-type of
eight.cylinder motor in the Autocar I'm
perial Year book London, classifies its
advantages under four heads, viz: size,
weight, torque and cooling.
Under the head of size he comments
.on->the shortness of the construction,
which not only reduces periodic vibra-
tons in the crankshaft, but affords more
space for body work on a chassis o
standard length. No extraordinary length
of inlet piping is required as the V-form
cylinders lend themselves very readily TO
a piping arrangement that enables every
cylinder, to receive practically uniform
charge or gas r. RI
In the matter Of weight. the shortness
OF the V-type eight again figures, Mr..
Aston pointing out the reduction in the
length of crank case, the lighter crank
shaft and flywheel, short camshaft and
lighter reciprocating parts because of the
comparatively smaller size of the cylinder
on a given power basis.
As TO torque, he shows by illustration
that the torque of the eight is more uni
form and that additional cylinders could
do no more than increase the power.
The author points out that, in the cool
ing system, each block of cylinders is
treated as a unit, and the water circula-
ton has no tendency TO form pockets
around the valves.
The cylinder dimensions of the new
Cadillac engine are comparatively small
-Sb inches bore and 6ls inches stroke
yet in repeated tests by dynamometer,
an excess of 60 horsepower has been
registered.
Cast In Two Blocks.
The cylinders are cast in two blocks
of four cylinders each, with water Jackets.
combustion chambers and intake mani
fold integral. The cylinder blocks are
mounted on the crank case at an angle