The accurateness of dynamometers
At its simplest, a dynamometer is a means of measuring an engines power in Horsepower or Kilowatts.
Slightly more complex dynamometers can also give you a print out of your bike or cars BHP versus RPM and Torque versus RPM. This is achieved by running the back wheel (in the case of a bike) on a steel drum, at maximum power.
An engine dynamometer is a dyno attached directly to the engine. Engine dynamometers enable you to efficiently monitor performance parameters.
They are used by big car manufacturers, race engine builders, or formula one cars constructors, and allow for total access, control of all parameters and can simulate race conditions and more! Engine dynamometers are usually braked dynos, and they are not always very complex.
Some people have built very simple engine dynos for things like model aircraft engines, and kart engines.
These basically are just an engine driving a flywheel either directly or through a chain, or shaft.
A very rudimentary engine dynamometer works by calculating the flywheels mass (rotational mass) and then calculating the power curve using simple mathematics.
All you need at this point is something to count and time the pulses from the flywheel. A single sensor or ignition pulse can be used.
Having cleared the basics regarding the way a dyno works, you should now understand the differences between a "brake" type dyno and an "inertia or inertial" dynamometer.
A brake type dynamometer measures power by "braking" the drum or roller (or the engine, in an engine dynamometer directly).
Then, it uses a load cell or spring balance to measure the torque required to hold the engines RPM steady. This is calculated by using the following formula: Torque x RPM = Power.
An inertial dyno uses a heavy solid steel drum, but no brake! The drum is free to accelerate.
A computer then logs the rate of acceleration, and as it knows the mass of the drum, it can plot the power required against either road speed or real time engine RPM.
Power loss is an important aspect which should be considered when using dynamometers.
A chassis dynamometer measures the power produced "at the wheel". Some dynamometer systems allow you to see an "at the engine" or "flywheel" BHP figure.
There is always more power available at the engine than is available at the wheels! Gearboxes and axles, along with the tires all absorb some power. As the shaft speed increases, the amount of power absorbed increases too.
Tires absorb more power as the road speed increases, so there will be greater losses here in top gear than in say 2nd or 3rd gears.
A very important fact to remember is that on all chassis dynamometers, the "power at the engine" BHP figure can never be accurate!
At best, the power measurements at the engine should be considered as a guide.
It is important to remember to always account for the power losses in order to achieve a good performance diagnose. There are several ways of calculating or measuring the power losses, but these all depend on the manufacturer you choose for your dyno.
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Robby Gordon Adds Off-Road Prodigy Andy McMillin to Red Bull Team Gordon
(ContentDesk via ContentDesk Direct) November 14, 2005-- Robby Gordon has added Andy McMillin to the co-driver slot on his off-road racing team, Team Gordon. Together, Robbie and Andy will tackle the worlds toughest off-road races, with help from their professional crew and top-notch sponsor support. At eighteen years of age, Andy is the youngest competitor in history ever to race a trophy truck in the SCORE series. The Team Gordon Red Bull/Toyo tires truck will be campaigned for the full 2006 season. Andy will share driving duties with Robby in the Baja 500, Baja 1000, and will drive in the remaining four races in the SCORE series for 2006.Robby, a two-time winner of the Baja 1000 and defending champ of the Baja 500, has a full race schedule including the world famous Dakar rally.
As we continue to grow our company in all forms of motorsports including SCORE, NASCAR, Indy Cars and Dakar, we need to start building some of our programs...
Robby Gordon Adds Off-Road Prodigy Andy McMillin to Red Bull Team Gordon
Toyo tires > Robby Gordon Adds Off-Road Prodigy Andy McMillin to Red Bull Team Gordon
America Outdoor releases the Mini Sport Bike, Gas Powered Mini Chopper, and the Pocket Bikes.
Mini Bikes, Pocket Bikes and Mini Choppers are gas powered. They have electric start motors and have a 43cc two-stroke engine. Mini Bikes, Pocket Bikes and Mini Choppers have disk brakes in the front and rear with a muffler with spark arrestor. Our Mini Bikes, Pocket Bikes and Mini Choppers ship for FREE!America Outdoor has the Internet's best selection of Mini Bikes, Pocket Bikes and Mini Choppers.America Outdoor has the Internet's lowest pricing on Mini Bikes, Pocket Bikes and Mini Choppers.Mini Bikes, Pocket Bikes and Mini Choppers are available in a variety of colors. Mini Bikes, Pocket Bikes and Mini Choppers include adjustable rear mono shock.
They also have aluminum rear mono shocks and come equipped with pneumatic tires with aluminum wheels. Mini Bikes, Pocket Bikes and Mini Choppers are race style fairing with front and rear fenders. Please see our individual listings for specifics.ThanksAmerica Outdoor.com.
America Outdoor releases the Mini Sport Bike, Gas Powered Mini Chopper, and the Pocket Bikes.
Toyo tires > America Outdoor releases the Mini Sport Bike, Gas Powered Mini Chopper, and the Pocket Bikes.
Cheap ATV Tires - Adventures For Slashed Prices
I'd like to talk about my friends for a minute.
While I'm doing so, you should think about yours.
And if, as I suspect and for your sake hope, yours are different than mine, well then tonight, before you go to sleep you really have something to be thankful for.
But, if by some cruel cosmic joke that is aimed directly at you, your friends have even an inkling of resemblance to mine, well then I must offer my sympathies.
Let me speak bluntly.
My friends are cheap; because I am an idiot.
My friends wear on me quickly; they have very little value; at times can even put my safety in peril, due to their cheap nature (this of course depends on the sense of humor of the patrons and staff of the venue we choose to unleash their cheapness).
But, what can I do?
I have them for better or worse, but probably for a lifetime.
This same logic, however, simply must not translate into my perspective...
Toyo tires > Cheap ATV Tires - Adventures For Slashed Prices
Jogging Stroller Safety Tips
Strollers offer a wonderful and convenient service to parents and caregivers.
The first priority in choosing a stroller should be safety.
To prevent tipping, choose a stroller that has a wide base so even when your child leans over there is no chance of the stroller tipping.
If you purchase a stroller that includes a recliner position check the stroller to make sure the stroller does not fall over backwards when the child reclines.
Remember to use the stroller seat belt at all times.
If your stroller has a basket, use that for purses and bags rather than hanging these items over the handles.
The basket on your stroller should be placed over the rear tires.
To prevent accidental folding of the stroller always use the locking device.
The brakes are used to limit the rotation of the tires when the stroller is at a complete stop.
Make sure you do not accidentally pinch your...
Toyo tires > Jogging Stroller Safety Tips
Discount Tires
Tires often get worn under the influence of weather or road conditions. Replacing the tires with brand new ones may not be such a good option, especially when you know that tires will get worn down quite frequently. But Discount Tires represent a cheaper alternative.
Discount Tires can be purchased at many stores. If you are the busy type, there are many websites where you can shop online for them.
One just needs to enter the make and model of the vehicle, and certain other specifications, for the website to display the best option. After purchase, you need not wait for weeks for the shipment to arrive. You may be asked to drive in to a service station nearby, where mechanics will be waiting with your Discount Tires to be mounted on your vehicle.
After you have made a decision to go in for Discount Tires, it is essential to keep a few things in mind before going for the actual purchase. First of all, one needs to be completely aware of the vehicular...
Toyo tires > Discount Tires
Workings Of A Motorcycle Muffler Suspension
Motorcycles are becoming more popular because of its convenience and relatively inexpensive cost compared to automobiles. They are capable of the same speeds as cars and can also be licensed for use on public highways.Owners and drivers of motorcycles opt for these motorized, two-wheeled vehicles as transportation because aside from it being an inexpensive alternative to cars, they can be easily maneuvered and they deliver higher fuel economy. In addition, they take less space for parking. No wonder a lot of Asian countries have more motorcycles than cars.And for drivers who love speed, motorcycles are great vehicles because they can accelerate more quickly than an automobile. Nevertheless, motorcycles are not for everybody.
Riding and controlling this vehicle requires skill and extra caution especially during difficult maneuverings on wet or slick surfaces.But when you do get the urge to ride a motorcycle, you would want to learn a lot of information on the vehicle, like "Where...
Workings Of A Motorcycle Muffler Suspension
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hearing aid The accurateness of dynamometers
The accurateness of dynamometers flower
The accurateness of dynamometers
Cambrian House Inc. Sends Lunch to Google
Calgary, Canada (ContentDesk) June 28, 2006 -- Cambrian House Inc., a Calgary based software company spent Monday afternoon delivering lunch (over 1000 pizzas) to the Googleplex in Mountain View, California as they inducted the famed internet search company into their NVA hall of fame. The National Viking Association (NVA) is a hall of fame for those companies and individuals that make a dent in the online universe.