Tuesday, May 21, 2013
F1 2008 and the Science of F1 Motorsport
As we enter another season of Formula One racing, many fans hopes rest on Lewis Hamilton, Fernando Alonso, Kimi Raikkonen and other F1 superstars; but lets not forget that it takes a lot more than just a good driver to win a F1 race.
In order to be successful in the highly competitive world of F1 motorsport, every technical advantage helps - no matter how small. Firstly, if you take a look at an F1 car, youll find a huge amount of technology under - and over - the bonnet, and everything from the gears to the gas pedal has been meticulously designed and refined to create a lighter, smoother, faster car. Meanwhile, ongoing testing of the cars aerodynamic properties continues to create faster vehicles that stick to the road, and every single surface of a modern F1 car, from the tyres to the drivers helmet, has its aerodynamic qualities considered and researched.
At the centre of F1 is the safety of the drivers, the pit teams and the fans. The heart of each car is built with an extremely strong structure nicknamed "the tub". This is the drivers cockpit and survival cell, and is constructed mainly from carbon fibre. The fact that so many drivers have walked away (or at least been helped out of) some seemingly catastrophic accidents is testament to the highly successful protective construction on the survival cell. The cars are also designed so that drivers can get out of the cockpits in the least possible time to avoid burns. The current regulations state that all drivers should be able to get out in no more than five seconds without having to remove anything except the steering wheel.
Many might be surprised to hear that F1 drivers are some of the most highly conditioned athletes on earth. You might think that little physical prowess would be needed for a sport that involves sitting in a car; but on the contrary, a huge amount of stamina and endurance is required, with drivers having to endure high G-force cornering which can cause extreme stress to their bodies. Due to the hot climates that many of the F1 races take place in, such as Australia, Singapore and China, the drivers must be able to handle high temperatures for long periods, and they can lose as much as 3 litres of sweat during a race!
And lets not forget the other members of the team that are so vital to success in this fast paced motorsport. Drivers may get most of the attention, but F1 is a team sport, and the speed and precision at which a teams pit-crew can refuel and change a tyre or make more serious repairs will have a significant impact on the drivers lap time and position in the race; a well oiled pit-crew can perform their tasks in just seconds.
So without taking anything away from the drivers of F1, we can see that it really is a team sport, and without all the research, technology and hard work from their team mates, those wining drivers wouldnt be able to spray each other with champagne on the podium.
Friday, May 17, 2013
This is the Fastest Electric Motorcycle

source:http://otomotif.vivanews.com/news
The 2013 Yamaha XT250

The XT250 with 249cc air-cooled four-stroke with 9.5:1 compression makes maximum power at 7500 rpm and maximum torque at 6500 rpm for great on- and off-road performance. A light-and-strong forged piston inside a plated cylinder helps dissipate heat more efficiently, increasing both performance and durability.
The 2013 Yamaha XT250 Specifications
Engine
- Type : 249cc air-cooled, SOHC 4-stroke single
- Bore x Stroke : 74.0 x 58.0mm
- Compression Ratio : 9.5:1
- Fuel Delivery : Fuel Injection
- Ignition : TCI
- Transmission : 5-speed; multiple-disc wet clutch
- Final Drive : Chain
- Suspension / Front : 35mm telescopic fork; 8.9-in travel
- Suspension / Rear : Swingarm w/rebound-adjustable single shock; 7.1-in travel
- Brakes / Front : 245mm disc
- Brakes / Rear : 203mm disc
- Tires / Front : 2.75-21
- Tires / Rear : 120/80-18
- Length : 84.6 in
- Width : 31.7 in
- Height : 45.7 in
- Seat Height : 31.9 in
- Wheelbase : 53.5 in
- Ground Clearance : 11.2 in
- Fuel Capacity : 2.6 gal
- Fuel Economy** : 76
- Wet Weight*** : 291 lb
Thursday, May 16, 2013
The New Hand Controls Part IV The Ending
All the new stuff. You can even see the new hi/lo beam switchon the headlamp bucket if you look closely.
The black paint is now as sanded off as I care to make it,and the levers are new silver units (that got Scotchbrited)
1. A non-dimpled Biltwell Generation II Frisco bar in chrome was trimmed of 3/4" from both ends and buffed with Scotchbrite.
2. The internally wired POSH Factory switches in brass were mounted to the left and right controls, controlling both the L/R signal and horn on the left, and the Run/Kill switch with a start button on the right.
3. A pressure activated banjo bolt brake light switch was installed on the front master cylinder, thus preserving front brake activation of the brake lights.
4. The headlight hi/lo beam switch was rerouted from the handlebars to the headlamp bucket. The new switch is now a hi-off-lo beam switch.
5. The Biltwell Whiskey Throttle in silver was set up to run a single cable setup and Biltwell Kung Fu grips were stuck on with the fiancees John Freida Collection hairspray.
6. The original lever assemblies were reused but modified with an angle grinder to eliminate the lip and extra tabs that secure the levers to the stock housings. The remaining black paint was removed with a wire brush, a 120 grit flap wheel and by hand with emery cloth.
7. Finally, the stock black clutch and front brake levers were replaced with silver ones which also ended up getting Scotchbrited.
No major problems were encountered during the installation and everything went pretty smoothly, although it was a little more time consuming than I originally anticipated.




