V8 engines operates under the same basic principles as any other gasoline four-stroke engine. First the piston pulls in air and fuel as it moves downward, then it compresses that air and fuel as the piston moves upward. A spark plug fires, igniting the air/fuel mixture and forcing the piston downward. Finally the piston pushes out the exhaust gases on its way back up, before for the cycle repeats itself.
In a V8 engine, this cycle is happening in 8 different cylinders, at different times. Instead of multiple cylinders firing at the same time, you want them to be spread out so that power delivery is smooth. For this Chevy V8, the firing or is 1, 8, 7, 2, 6, 5, 4, 3. With 8 cylinders, there is a cylinder firing for every 90 degrees of the crankshaft rotating, which means at any point in time, there are two cylinders on the power stroke.
With regards to the valvetrain, the intake air comes from the top of the engine, and into the sides of the cylinder head. The exhaust flows to the sides of the engine, exiting the exhaust valves from the cylinder head. In this LS3 model, there is a single intake valve and a single exhaust valve, though it’s also common to see engines with two intake valves and two exhaust valves. The larger valve is the intake valve, and the smaller valve is the exhaust valve.
The pushrod valvetrain gets its name from the metal pushrods which activate the rocker arms which open up the valves. The camshaft, located in the center of the V, has lobes on it which push the push rods up, opening the appropriate valves. For a full explanation of V8 engines, check out the video!
Drivers want to save time, and local transportation agencies want to improve traffic flow, but at what cost? With posted speed limits increasing on roadways around the country, a vehicle’s ability to protect drivers in crashes is in doubt.
Small speed increases can have huge effects on crash outcomes, as shown in new crash tests by the AAA Foundation for Traffic Safety, the Insurance Institute for Highway Safety (IIHS) and Humanetics. The safety organizations conducted crashes at three different impact speeds (40, 50 and 56 mph). They found the slightly higher speeds were enough to increase the driver's risk of severe injury or death.
- a smooth ride,
- prolong the life of a car,
- and increase its safety
- It reduces the repair costs - maintenance procedures are preventative in nature and this means that it is a good way of avoiding major repair bills as a result of oversight.
- It reduces the chances of getting surprise breakdowns.
- Regular car services will lower the possible risk of getting involved in an accident
- Servicing involves various procedures that guarantee better fuel consumption. In essence it is cheaper to run a car that regularly goes for servicing
Article Source: http://EzineArticles.com/7432715
The slide-in DumperDogg Dump Insert from Buyers Products makes it easy to convert your 3/4 ton+ pickup with a 6 or 8 ft bed into a dump truck. The slide-in unit has a 6000 lb capacity and is powered by your truck's electrical. A double-acting scissor hoist provides up to a 45° dump angle. The versatile tailgate opens up or down and can be removed completely, so you can still use your truck like a regular pickup. A number of accessories, including side wall extensions, roll tarp kits, a removable tailgate spreader, and a cab guard are also available. For more information, and to see our complete line of DumperDogg products and accessories, visit https://www.buyersproducts.com/catalo.... Available Models (Click the link for more info): Stainless Steel Models - https://bit.ly/2JeNRqT 5534000 - 8 Foot 5534006 - 6 Foot Carbon Steel Models - https://bit.ly/2xO43q4 5531000 - 8 Foot 5531006 - 6 Foot Poly Model - https://bit.ly/2Fd5fIo 5532000 - 8 Foot
The industry’s first true hands-free driver assistance system, Super Cruise is available on more than 200,000 miles of compatible roads in the U.S. and Canada.
Super Cruise utilizes a driver attention system and precision LiDAR map data in addition to real-time cameras, sensors and GPS. The driver attention system uses a small camera located on the top of the steering column and works with infrared lights to determine where the driver is looking whenever Super Cruise is in operation. If the driver attention system detects the driver has turned their gaze away from the road ahead for too long, the steering wheel light bar will prompt the driver to return their attention to the road.
With a strong foundation of manufacturing trucks since 1902 and now selling in a dozen countries across the world, GMC offers purpose-built vehicles designed and engineered to the highest standard. From the all-new compact SUV Terrain to the Sierra HD, our trucks and crossovers deliver GMC’s signature combination of intuitive technologies and premium execution, with the popular Denali sub-brand representing the pinnacle of GMC design, performance and amenities. Details on all GMC models are available at www.gmc.com, on Twitter at @GMC or at www.facebook.com/gmc.