General Challenger

  • Development of Airbags

    Airbags, like lap belts/shoulder belts, are a type of automobile safety restraint system designed to mitigate injury in the event of an accident. These gas-inflated cushions, built into the steering wheel, dashboard, door, roof, and/or seat of your car, use a crash sensor to trigger a rapid expansion of nitrogen gas contained inside a cushion, that pops out on impact to put a protective barrier between passengers and hard surfaces. The National Highway Traffic Safety Administration (NHTSA)...
  • Limited Slip Differentials

    A limited-slip differential (LSD), or “anti-spin” differential is a type of differential that allows the rear wheels on a vehicle to turn at different speeds when executing a turn. They are widely used in high performance and four-wheel-drive vehicles because they provide superior traction abilities. Various types of differentials can be classified as "anti-spin." These include limited slip, locking and spool differentials. Each performs differently on and off the road. Generally, only...
  • Evolution of Racing Stripes

    Racing stripes are usually a “must have” for owners of muscle cars. These stripes, originally called “go faster stripes,” first appeared on Cunningham race cars in 1951. Two parallel blue stripes ran from front to rear in the center of the white car body. Their main purpose was to help spectators identify the cars during races. They evolved from the traditional FIA registered U.S. Racing color of a white body and blue chassis, which dated from when racing cars had the chassis exposed. The...
  • Crash Test Dummies

    A crash test dummy is a full-scale anthropomorphic test device (ATD) that simulates the dimensions, weight proportions and articulation of the human body during a traffic collision. Dummies are used by researchers,automobile and aircraft manufacturers to predict the injuries a person might sustain in a crash. Modern dummies are usually instrumented to record data, such as velocity of impact, crushing force, bending, folding, or torque of the body, and deceleration rates during a collision....
  1. Blind Spot Monitoring

    What is Blind-Spot Monitoring? Blind-spot monitoring one of those features we didn’t know we needed or wanted until carmakers began offering it. Volvo was the first, incidentally. It offered its Blind Spot Information System (BLIS) for the S80 in 2005. BSM is just what its name implies. It keeps an eye on the space just off the rear quarter areas of your vehicle. These blind spots can hide a vehicle approaching in an adjacent lane because many drivers improperly set their car’s outboard...
  2. Featured

    Limited Edition Challengers

    Over the past 13 years, Dodge has employed a marketing strategy of releasing an array of limited edition models. Here is the staggering lineup. 2008 SRT8 The inaugural edition of the Challenger was numbered, X of 6,462, and came equipped with the 425 hp. 6.1 Hemi engine with 425 lb.-ft. of torque. It also featured an Auto Stick Automatic, 20-inch Alcoa forged aluminum wheels, 245/45-20 Goodyear tires, Brembo brakes, etc. Color choices were Hemi Orange, Brilliant Black Crystal and Bright...
  3. Hemi Heads

    In recent years, Dodge has produced four different Hemi heads. Here is a brief description of each. In 2003, the 5.7 Hemi received the first, followed in 2005 by the 6.1 hemi design. In 2009 and 2011 respectively, the 5.7 Hemi Eagle and 6.4 Hemi Apache head appeared along with Variable Valve Timing (VVT) and the larger 392-inch engine. As the engines got larger, the heads improved with the help of larger valve sizes and improved ports. As cams got bigger, the beehive springs got more...
  4. Ethanol Fuel Mixtures

    The question frequently comes up, “Are E10 and E85 fuels harmful to my engine?” Here is everything you wanted to know about the chemical compound ethanol that is added to gasoline. Ethanol is used as an “oxygenate” and is added to fuel to help reduce hydrocarbon emissions that cause air pollution. It is highly refined beverage (grain) alcohol, approximately 200-proof, that can be produced from natural products such as corn, sugar cane and wheat. New technology allows ethanol to be made...
  5. How Rev Limiters Work

    Simply put, rev limiters restrict the maximum speed an engine can achieve. They are there to prevent an engine from damaging itself by extending beyond its limits. Any engine is only designed to be able to function up to a certain speed, which is measured in revolutions of the crankshaft per minute. Out of the factory, the rev limiter is set at the point the engine’s maker is happy for it to rev to on a regular basis. It’s not to be confused with the redline, although it can sometimes be...
  6. Limited Slip Differentials

    A limited-slip differential (LSD), or “anti-spin” differential is a type of differential that allows the rear wheels on a vehicle to turn at different speeds when executing a turn. They are widely used in high performance and four-wheel-drive vehicles because they provide superior traction abilities. Various types of differentials can be classified as "anti-spin." These include limited slip, locking and spool differentials. Each performs differently on and off the road. Generally, only...
  7. Dual Clutch Transmissions

    Most drivers know that cars come with two basic transmission types- manuals, in which the driver changes gears by depressing a clutch pedal and using a stick shift, and automatics, which shifts using clutches, a torque converter and sets of planetary gears. But there's also something in between that offers the best of both worlds- the dual-clutch transmission- also called the semi-automatic transmission, the "clutchless" manual transmission and the automated manual transmission. In the world...
  8. Dick Landy- Mopar Drag Racing Pioneer

    Dick Landy, a legendary drag racer and a major pioneer in Super Stock, Funny Car and Pro Stock, was also known for his innovative race cars and wild wheel stands. His nickname "Dandy Dick" came from his neat appearance in pressed white pants and jacket and long unlit cigar clenched between his teeth. Landy was among the drivers who popularized late-model Super Stock cars in the 1960s, campaigned the first Funny Cars in the middle of that decade and helped establish the popularity of Pro...
  9. Development of Airbags

    Airbags, like lap belts/shoulder belts, are a type of automobile safety restraint system designed to mitigate injury in the event of an accident. These gas-inflated cushions, built into the steering wheel, dashboard, door, roof, and/or seat of your car, use a crash sensor to trigger a rapid expansion of nitrogen gas contained inside a cushion, that pops out on impact to put a protective barrier between passengers and hard surfaces. The National Highway Traffic Safety Administration (NHTSA)...
  10. Featured

    Intake Manifolds

    An intake manifold is the part of an engine that supplies the fuel/air mixture to the cylinders. Its primary function is to evenly distribute the combustion mixture (or just air in a direct injection engine) to each intake port in the cylinder head(s). Even distribution is important to optimize the efficiency and performance of the engine. It may also serve as a mount for the carburetor, throttle body, fuel injectors and other components. The design and orientation of the intake manifold is...
  11. Featured

    Windage Tray

    Most of us know about windage trays, but what is their function and what exactly is “windage?” Simply put, windage is a force created on an object by friction when there is relative movement between air and the object. Windage loss is the reduction in efficiency due to windage forces. As it pertains to internal combustion engines, windage is the power loss caused by the friction of the oil in the engine coming into non-lubrication contact with its internal moving parts. For the most part,...
  12. Rearview/Back-up Camera

    A backup camera (also called a reversing camera or rear view camera) is a special type of video camera that is attached to the rear of a vehicle to alleviate the rear blind spot and avoid a backup collision. The area directly behind vehicles has been described as a "killing zone" due to associated accidents. Backup cameras are usually connected to the vehicle’s head unit display. The first backup camera was used in the 1956 Buick Centurion concept car, presented in January 1956, at the...
  13. Auto-Stop/Start Technology

    Since the Obama Administration finalized standards in 2012, to encourage the automotive industry to reach a 54.5 miles per gallon corporate fuel economy average by 2025, manufacturers have been employing every means possible to squeeze another mile out of a gallon of gasoline. A combination of aerodynamics, weight savings, electrification, hybrid technologies and advanced engine management software has gone a long way, but it doesn’t take a rocket scientist to understand that you save a lot...
  14. Wind Tunnels

    When most people think of wind tunnels, an aerospace tunnel usually comes to mind. This helps designers and engineers understand how aircraft will behave during various flight conditions. Automotive wind tunnels are usually very similar to aerospace tunnels, but they often feature a rolling floor that lets test engineers simulate a car driving on the road at various speeds. What are Wind Tunnels? Wind tunnels are large tubes with air blowing through them which are used to replicate the...
  15. Featured

    Are Most Radar Detectors Useless?

    A radar detector is an electronic device that has been used by motorists, for decades, to detect if their speed is being monitored by police using a radar gun. It gave a driver sufficient warning to reduce his speed to avoid being ticketed for speeding. In a general sense, only emitting technologies, like Doppler radar, or LIDAR (pulsed laser light) can be detected. Visual speed estimating techniques, like ANPR or VASCAR cannot be detected in daytime. There are also no reports that piezo...
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