Origins of Speed
In the earliest days of the automobile, the “horseless
carriage” era, all cars were mechanical curiosities. They were playthings for
the rich and adventurous. None were particularly reliable, but many startups sought
to sell something new and different to a privileged few.
When the Model T became a true mass market phenomenon by the
1920s, a consolidation began in the auto industry. Soon, there were far fewer
choices in a price range that many people could afford. Mechanical reliability
became the norm. As the number of choices for affordable, reliable transportation
diminished, and sales, especially of the “T,” continued to grow, a large supply
of spare parts, easy to fabricate, entered the market. Another big thing
characterizing the 1920s in America was Prohibition. It created an
unanticipated new market for bootleggers
to build cars that could outrun the police on country roads, an “outlaw”
market.
Then, the Depression
hit. Prohibition was repealed, but the popular glamorization of the
bootlegger’s “souped up jobs,” modifications to older low-priced Fords or
Chevrolets (since nobody could afford new ones) created a fad among a certain
set of young men, in California at first. Ford added fuel to the fire by
introducing a daring new design in 1932 – a V8 engine that would sell in the
same price
class as previous Model A four cylinders, and would match the
performance (i.e., straight line acceleration and top speed) of its main
competitor, the six-cylinder Chevrolet. The Ford “flathead” V8 became the basis
for an entire culture of speed and amateur racing on Southern California’s dry
lakebeds.
The “after-market” in
parts for Model T and Model A four-cylinder engines was already established.
Some of those same shops easily shifted to V8 “speed parts.” Better still for
the new racing hobby, Model T and A chassis’ could easily accommodate the V8.
Bingo – “hot rods” were
born!
Bodies (usually roadsters) were stripped to the barest essentials. Fenders,
seats, tops, all sacrificed to lighten the load that the modified engine would
move. The cars were still drivable from communities like Burbank, Glendale, and
Pasadena to the dry
lakes where they would race. But these cars were often unsafe to drive on
public roads and streets. Especially, since they encouraged breaking speed
limits.
NHRA Solves Social Problem
As hot rod top speeds approached 100 mph, public outcry grew
louder about safety. The typical American disdain for idle young men
(unemployed, under-educated, easy targets for gang recruitment) played a role. Street
racing became a social problem. Finally, in 1951, the National
Hot Rod Association was formed, founded by Wally Parks,
and set about opening officially sanctioned and regulated “dragstrips” around
the country, often on abandoned airfields disused since the end of World War
II. Returning veterans added respectability to the hobby, many having gained
mechanics’ skills during their service. With the help of the NHRA, drag racing
became professional.
Early dry lakes
racing had been organized and officiated by the Southern California Timing
Association, and the standard ¼ mile straight line course (1320 ft.) was
established by them. The NHRA, however, invented the “Christmas tree” light
system to control staging between two
competitors in adjacent lanes. Another
NHRA institution – various classes – became the basis for dizzying complexity in
the sport. One could game the system by qualifying in the most advantageous
class. But, full exploitation of this tactic didn’t come until the 1960s.
Detroit Discovers Speed
Cued to the popularity of the “speed culture,” Detroit
continued development of mass-produced V8 engines from the late ‘40s on. In the
1950s, America was becoming an automobile obsessed country – especially for
young, new drivers. The growth of suburbia and improving highway infrastructure
also facilitated a motorized transformation of society, everywhere except in
central urban cores.
In 1955, Chevrolet
introduced its “small
block” V8, soon eclipsing the old flathead Fords in everybody’s hot rods – it
outperformed even the most “souped up” Fords due to its efficient
overhead-valve cylinder head design. Even straight “out of the crate” from the
factory, the horsepower of these relatively light weight engines left the best rebuilt
Fords in the dust (in fairness, there was one after-market supplier of overhead
valve cylinder heads for the “flattie,” starting about the same time – Zora Arkus-Duntov, a Belgian immigrant and Le Mans race driver, who had been instrumental in the development of the Chevrolet V8).
By 1958, the NHRA had begun racing its “stock” classes and
“super stock” classes (the latter were factory produced high performance cars
sold in limited numbers through ordinary Chevrolet, Ford, or Dodge dealers).
This created what was known at the time as a “horsepower race” among the
Detroit manufacturers – they were competing among themselves for the highest possible
SAE (Society of Automotive Engineers) horsepower rating of their production
engines, presumably as a spur to greater sales. All these engines were large
displacement V8s. Indeed, volumetric dimensions of the eight combustion
chambers were probably the main determinant of horsepower rating in those days.
Other design features
like multiple carburetors, higher compression ratio, intake and exhaust
manifold shape, were relatively minor contributors to raw power.
Soon, a new breed of
“stock” automobile emerged from Detroit – the “muscle
car.” This took the existing engine
design technology (basically, bigger displacement) and placed it in a lighter
body. The
archetype muscle car was the Pontiac GTO, introduced as a 1964 model.
By 1968, all domestic manufacturers had a competitor – a mid-size sedan packing
a very large V8 originally intended for much heavier vehicles. At about the
same time, a new class of car, even smaller, was also introduced, the Ford
Mustang. While not originally fitted with Ford’s largest V8s, the transition
came soon enough – with the help of the NHRA. Why not something even smaller
and lighter than those mid-size sedans to house the big engines? “Pony cars” (Mustangs, Camaros, Firebirds, Barracudas, Challengers, Javelins) became the new muscle cars.
Speed Dies and is Reborn
Then came the 1970s. First it was the Feds – new emissions
requirements forced on Detroit automakers (and imports) effectively strangled
the horsepower output of all engines beginning about 1971. Although not
connected to the new emissions requirements, manufacturers agreed to use SAE
“net” horsepower ratings rather than “gross.” This measured engine output
through the exhaust system rather than at the flywheel. The alleged “high
performance” offerings from all domestic makers lost up to 100 hp overnight! Since
1972, only SAE net ratings have been advertised. As the ‘70s continued, foreign
policy also had a big effect on the auto market in the United States. There
were two successive “oil shocks” – in 1973 following the Yom Kippur War, and
again in 1980, following the Iranian revolution. American dependence on Mideast
oil became painful to all – but, none more than the high- performance
enthusiast. The third blow to the speed culture was the insurance industry. In
the mid-seventies, they collaborated in raising rates for what they deemed
“high performance” cars. These situations made it uneconomic (in the case of
emissions, illegal) to do anything meaningful about boosting performance of
your daily driver, and Detroit followed suit. Muscle cars died a slow and agonizing
death. The “GTO” badge, for example, became trim only, divorced from engine
choice, and disappeared completely by 1975.
Unforeseen at the time, however, the whole world of
performance – yes, horsepower --- would rise again from the ashes, like a phoenix.
Starting in the nineties, and continuing today, new technologies built around
digital EEPROM Engine
Control Units (ECUs), fuel injection, turbochargers
or superchargers, cheaper gas, and much safer cars (thanks to those Feds!)
have all contributed to a renaissance. And, not least, a new class of young
drivers, including recent immigrants, who embody some of the same
socio-economic characteristics as those depression-era California dry lakes
racers. They may be idle, without much formal education, but gifted with a
spirit of competition and a cult of ingenuity. They’re more likely to choose
small imports nowadays, rather than “Detroit iron,” but the impetus seems to be
the same.
What is that impetus? Cars are both economic necessity and
ego extension (Freudians might call them phallic symbols). They express desire
for social
status, despite lack of financial resources. Also, that natural thrill of
competition, and creativity through mechanical ingenuity, all contribute to the
“speed culture.”
Drag racing has become international. In
Australia, it’s almost on equal footing with the U.S. Sweden, Finland, and the
U.K. also have active groups with organizing associations. There is a vigorous
after-market in bolt-on turbochargers and superchargers, and compatible replacement
ECUs with programming kits.
Not to miss an opportunity, Detroit has once again jumped
into the fray. What’s with the 2018 Dodge
Challenger SRT Demon? The newly introduced factory drag machine from FCA
(Fiat Chrysler Automobiles) loads a race built 6.2-liter Chrysler hemi V8, with
supercharger, rated at 840 hp (SAE net)! Far removed from the 300 or so horsepower
(SAE gross) of the 1950s super stocks. The car is “street legal,” which means
that it can legally be driven to and from the dragstrip -- much like those
early dry lakes hot rods. But, its real purpose is to win drag races. It is
clearly optimized for ¼ mile acceleration. As such, it is touted as the fastest
production car ever manufactured by a volume auto-maker. Under ten seconds for
that quarter-mile run, accelerates 0-60 mph in 2.3 seconds, exerting a force on
driver of 1.8g. Something like NASA!
And, you can buy it
for a mere $86,000 right off the floor of your local Dodge dealer (still ~$6000
less than a standard 370 hp Porsche
911). FCA plans to make 3000 of them. Why? Because it thinks it can sell
that many!
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