Corvette Racing GT2 car




This is Corvette Racing GT2 car ,While the 24 Hours of Le Mans was the swan song for the GT1-class Corvette C6.R, the fellas at Corvette Racing will unveil the next chapter of the story this coming Tuesday, August 4th. According to the crew at BadBoyVettes.com, that's the day we'll see the new GT2-class Chevy Corvette racer, which will allegedly wear "ZR1-influenced" styling. Beyond that, well, we're waiting along with the rest of you. We can't imagine Corvette Racing would abandon the Jake-emblazoned Velocity Yellow-and-Black livery that has become synonymous with success over the years. They'll need all that mojo and then some in GT2, where the competition is fierce and Porsche and Ferrari rule. And that's fine. Consistent, healthy competition has been sorely lacking for the Vettes, which have essentially just raced each other recent years, so this ought to be fun. The GT2 Vettes spring into real action on August 8, when ALMS visits Mid-Ohio. To the GT2 field: Check your mirrors. They're coming. To the rest of you in readerland: Check your local listings and set those DVRs.

Now 2010 Nissan Leaf electric car





Now 2010 Nissan Leaf electric car.It would be easy to paint Nissan as late to the burgeoning U.S. green party, as the company essentially only counts the Altima Hybrid to sell among its alt-fuel offerings – and that sedan utilizes technology borrowed from Toyota, and it's only sold in a few states in small volumes.

New technology : Opposed piston, opposed cylinder engine ups power density

New technology : Opposed piston, opposed cylinder engine ups power density
People have been predicting the death of the internal combustion engine for at least 50 years. Thing is, most of the folks making the predictions have themselves died, or been silenced by the fact that ICE is still here and it's better than ever. Still, the technology could be improved. All that sound and all that heat is just inefficient waste. And what about parasitic losses, like power steering pumps and valve train? Well, some OEMs (like Ford) are switching to mileage boosting electronic steering to save some MPG. However, electric valves are a long ways off. Not only would they be infinitely variable, but removing the chains, rods and springs needed to run conventional valves would increase mileage by 20%, at least. And that's just one route.

Another is the EcoMotors International (EM) opoc engine, aka open piston, opposed cylinder. Here's how it works. Instead of an I or a V pattern, EM's opoc is laid out like a two-cylinder boxer engine. However, each cylinder contains two pistons, and they are facing each other. This gives you four rods turning the crankshaft, with no cylinder heads and no valve train (for the record, we're not sure how fuel/air enters and exits). The opoc engine is also a two-stroke, guaranteeing lots of quick torque, but it "runs as a fully balanced 4-cylinder 4-stroke engine."

Shrinky-dinkying the engine has a whole host of other benefits that EM lumps together under the banner, "power density." They include: lower weight and smaller size, fewer materials, less friction, higher MPG, lower missions and less heat rejection. And as the engine is working against itself, there's plenty of built in noise cancellation. Power? Burning diesel, two 100 mm cylinders produce 325 hp and 664 lb-ft of torque @ 2,100 rpm. Nice. And thanks to Eugene for the tip!

[Source: EcoMotors]