Arizona republican., 1919-12-28
Wha a t Ty pc of Engine Is Con1ing??

Every automobile owner would like to know the progress that is being
 made in the automobile engine con struction and what the future holds for Inc different types both in this country and in Europe. The writer has made complete analysis of the engine sit nation and finds that the overhead valvo is fast becoming the American standard. and though the six cylinder Is the leader. with the four second, the eight third and the twelve last, there will be in a few years a sudden turn 10 multi-cylinders. European critics seem to believe that also abroad will Inc rnulti-cyllnder engine gradually rreep into first position. It may be
 iirficult for many to see how the six -ylinder can be displaced, but the same view was held Of the four not so many years ago The ideas that the eight and the twelve present mechanical complications and that the more cyl finders the more trouble have been shattered There are two outstanding features Of the multi-cylinder engine which will make it's appeal all the stronger. One is it's performance and the other it's quietneSs. Smoothness of torque-great pulling ability on high when the car is running slowly, quick pickup, reduction of vibration, are the results of multi-cylinder construction Speed and power. while they may be had in the four CT six. cannot be. had with the same SmoothnesS of operation IS in the eight or twelve.
 It was believed that the use of eight of twelve cylinders entailed the use of t long or wide hood because the en- zine took up more room than four or six As a matter of fact we now have tights, with cylinders in a row, that ire shorter than any six producing the same power and speed. In Europe the Lancia company is building a twelve cylinder which is no larger than a six and looks exactly like one, owing to Inc casting of all cylinders in one block The two rows of cylinders are 1nly 22 degrees apart and only one -arburetor is used. As time goes on the all in a row idea will take hold and we shall see many such models in pro- duction.
 In Europe the average car has four cylinders and a four-speed transmits sion, while at present the American average is a six with a three speed transmission. Europeans do not ob- ject in the least to shifting gears and they are not so insistent upon obtain manded by American buyers. hence the four cylinder engine with the four speed transmission
 Gradually though the Europeans arc coming to American ideas. for the Paris and London shows. recently held indicate the following ideas that, are being taken up practically by all Euro pean builders: Vacuum fuel feed, block casting of cylinders, removable cyIin- der heads. battery ignition. electric starting and lighting.
 During the war American builders had a wonderful opportunity to work out details of design for the postwar engines nsing some of the knowledge. gained in the design of airpIane en- zines These builders have not worked out their designs as quickly as the for eeigners who already have more than overhead camshafts. We shall see these designs on our cars a year or two hence
 It has been thought by the average owner that valve in head | engine is necessarily more powerful i than an l. head or T head. The valve | location is not the determining factor | in power output. so it is possible to ! have an l. head of given size even | more powerful and speedier than aIi overhead valve engine. However the ! overhead valve engine on the average is a more efficient type The one oh- i lection to it, namely noise. has been | almost entirely eliminated by improve 1 ments in design detail of the valve i gear.
 The automobile owner or buyer { should consider that just because . ear has an over head valve engine 4 ' doesn't make that car faster or better ! than one with another type of engine. | As a matter Of fact the engine may :. have many times the power and speed l of another, and the car in which it is . give poor performance The | work the engine has 10 do must be An engine of a big truck | ~r,<- the truck can only travel a maximum < of twenty five or thirty miles per hour. \ some of the best cars made in this and abroad have l. head en- zines. as for example the RoIlys- Royce of England, the Packard. Cad | lilac. etc.
 It is a fact that engine vibration | and engine torque or pulling ability have a bearing on the life of the rest