The Indianapolis times. [volume] (Indianapolis [Ind.]) 1922-1965, 1934-02-05

n + VVar,rIa- IOI ROulldC I'M
provement in rid
ing comfort, especially for rear-seat
passengers. Other contributing fac
tors are increase in wheelbase TO
1l7A inches, increase in car weight
TO 3.455 pounds for the fOur-door
sedan, low pressure tires of larger
diameter and longer, roomier bodies,
rubber-mOunted on new type KY
frame of tremendous strength.
In POntiac's new front-end spring
design. the conventional front axle
and front leaf springs are elm
mated, effecting a reduction in I'M
sprung weight and rendering it vir-
tually impossible for road shock to
defect the front wheels from the
line in which the car is travelling.
Change to soft" Springs
The suspension. eliminating the
conventional method of attaching
the front axle TO the frame through
leaf springs which had to be given
considerably greater strength than
the rear springs to prevent steering
DETECTION by road shock. now per-
mits use of equally soft" springs
front and rear. AS a result the car
rises and falls gently over road OBJ
stacles without shock or pitching.
An automatic stabilizer reduces
body sway.
Bendix brakes, simple in design,
which multiply pedal pressure many
fold, afford additional driving
safety. Even with the brake shaft
sawed completely in twO-the rig
orous French government test-the
car still can be braked on all four
wheels by using the emergency
hand lever and the foot pedal.
The emergency, incidentally, is not
merely a rear wheel parking brake
it operates on all four wheels and
provides braking power beyond that
of the foot pedal.
Vibration Reduced
Due to the strength built into the
motor and the balancing OF all
moving parts, the road speed of the
car can be advanced in one-mile
stages throughout its entire speed
range with only a slight trace OF
vibration. A larger harmonic bal
ANGER guards the seventy-one-pound
crankshaft against torsional vibra-
ton.
The heavy cylinder block, with
deep. rigid crankcaSe, short stroke
and main bearings supported by five
solid webs cast into the block. pro-
vide other factors which contribute
toward the smoothneSS of the mo-
tor.
Pontiac's compression has been
raised to new ratio of 60 to l. A
new type of cylinder head, carrying
cooling bosses above all valves, per-
mits the use of regular grades OF
fuel under this high compression.
Fuel Economy Attained
Although the engine develops
greater power. the 10 per cent saw
ing in fuel consumption has been
effected by the efficient new cylin-
der head and by the new method OF
vacuumatic spark control. operated
by the vacuum in the intake mani
fold.
Regardless of load or speed. this
vacuum spark control times the
cylinder explosions at the instant
which each piston reaches the tor
of its compression stroke.
The gaselector. another economy
feature. enables the owner to make
a manual adjustment of the spark
which obtains the last ounce OF
power and economy from any grade
of gasoline used.
Starting Simplified
Winter starting has been made
extremely easy by adoption of a
larger seventeen plate, 1877 hour
storage battery and by a generator
Of so per cent greater charging ca
pacity.
Electrical controls have been SIM
plified. The starter control is now
operated by the accelerator pedal.
AS long as the engine is operat-
ing. it is impossible for the starter
to engage. When stalled in traffic
only one movement of the foot is
needed to get the car underway.