The news scimitar. (Memphis, Tenn.) 1907-1926, 1919-09-20
STEPHENS SIX IS
nIAnnFn an Mn
CLASSED AS BIZ
ENGINEERING FEAT
Expert Declares Motor Is
Most Powerful Built Per
Cubic Inch Displacement.
Overhead Type.

1T Is a surprise to many people to
know that the Stephens Salient Six has
the most powerful automobile engine In
the world per cubic inch Of piston dis
placement, > says C.. r. Clough, sales
manager of the Stephens Salient Six,
But that's not all. In addition II b
the most economical"
The Stephens SAx4A inch, 6-cylinder
engine develops 81 horsepower at o.
600 rpm. nearly 40 per cen over
other engines OF the same size and
more than SO per cent over many. 1t
is now twice winner in two consecu-
tive years in the Los Angeles Camp
Curry A. A. A. sanction economy run
q S& miles up into mountains OF the
Yosemite valley, making 21,5 miles per
gallon In 1918, and 21,4 miles per gal
lon again in 1919, and also won the
Southern California trophy as the most
economical car In any class in the
use Of fuel oil and water, using one
pint Of oil and one and Investigating
gallons of water and TN gallons OF
gasoline,
People have asked us TO explain
why the Stephens perfected overhead
valve engine is capable of such per-
formance. II is simply this: IN the
GitpHHuA tlEitiG Is I9unu GREAy HlC-
chanical feature known to %automotiye
engineering science for the increasing
Of engine efficiency, yet 1t Is one OF
the simplest engines built. Overhead
valve type Is known to deliver from Is
to 20 per cent more power than other
types.
One Of the most interesting features
Is the complete gas factory" In the
Stephens perfected overhead valve en-
CINE, composed Of a large .vaporizing
wall and superheating chamber in the
head of the engine.
ton and fuel handling, originated by
| stephens engineers, Is the most lmpor-
tant development in automobile en-
| gines yet announced, because 1t pre-
pares gas for the cylinders, every bit
Of which ignites n explodes into
power. In addition to this, 1t Is just
as important because 1t permits the
use OF the lowest grades OF fuel with
out lessened performance.
Engineers tell us that by admitting
only dry, hot, perfectly vaporized gas
into the combustion chamber, all the
gas would burn, the ignition would
be quicker, the explosion faster and
Of considerable more power, with an
appreciable saving in the amour of
fuel used. This proves true In actual
road performances OF the Stephens
Salient Six,
A regular stock Stephens was shipped
to Chicago speedway and driven for
eight days and eight nights without
stopping except to change drivers, driv-
en- AZ an average speed OF 40 miles
per hour and a maximum speed Of 81
miles per hour.
And the engine required no atten-
tione This Is an ordinary lifetime
service crammed INTO eight continuous
days, yet this car was sold and $1,000
addition miles added to It's score and Is
1 a. - ----.sA t~ H. "a
imarkable durability and efficiency OF
the stephens engine.
Allan ,R. Kennedy, Of San Jose, Cal,
| drove a stephens stock car, the only
kind Stephens makes), LILO miles over
mountain ranges and hills between
Camp Fremont and Camp Kearney
with a 1,200-pound load in 40 hours
and 10 minutes, averaging 1928 miles
per hour. No other automobile has
equaled this record that beat the best
train schedule time by four hours.
On this trip NJ stephens used the
late, showing an u~nprecedented econo-
my. Total cost OF fuel slb.,lSs The
railroad fare to same points Is $l65.OO
for the four passengers.
At Cleveland, q, there are some
extraordinarily stiff hills.
long, is a hill that Is known all over
that part of the country as being the
worst and a hill that the majority Of
the cars cannot negotiate on high.
Yet the Stephens Salient Six started
at rs miles per hour and finished at rs
miles per hour on high gear all the
time, :.
w. II. Hardy, Stephens dealer at
Denver, Col. rode up. Pixies peak, 1907
miles, and used only three-quarters OF
a gallon OF water. The radiator did
not boil. This Is astonishing as there
are hose connections all along the way
for the purpose OF filling automobile
radiators.
But the Stephens reached the top.
an altitude OF l4,109 feet with The
radiator the same as at the start.
Considering the average grade of
eight per cent and various places at
Is per cent this radiator performance
stands perfect. And the beauty Of II
is that any stephens Salient Six VIII
duplicate these performances under the
aaTna conditions.