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Venom GT Hennessey Supercar

Hennessey Performance Engineering today announced that it is introducing the company's first The Venom GT. Penned by British auto designer, Steve Everitt, the Venom GT would incorporate Hennessey's potent Venom 1000 Twin Turbo Viper V10 powerplant into a light weight mid-engine chassis weighing "under 2,700 lbs". Power would be run through a 6-speed transmission or optional sequential gearbox. With a power to weight ratio of just 2.7 lbs per bhp Hennessey estimates that the Venom GT could attain 0 to 100 km/h times in less than 2.5 sec. and a 0-300 km/h time of around 14 seconds.

Venom GT Hennessey Supercar

Venom GT Hennessey Supercar

Venom GT Hennessey Supercar

“This is not the first time that Britain and America have joined forces to produce a weapon of mass propulsion”, said company founder and president, John Hennessey. “Over fifty years ago the American-built P-51 Mustang fighter aircraft was flown into history powered by a British Rolls-Royce Merlin engine. Today the Hennessey Venom GT promises to set a new standard of power to weight ratio in the rarefied air of today's supercar market.”

Venom GT Hennessey Supercar

In the case of the Venom GT, less weight means more performance. The Venom GT will have a production curb weight of less than 2,400 lbs (1,071 kilos) aided by its lightweight carbon fiber bodywork and carbon fiber wheels. Stopping power is delivered via Brembo brakes with 6-piston calipers up front and 4-piston calipers in rear clamping down on 15-inch carbon ceramic rotors.

Venom GT Hennessey Supercar

The Venom GT’s base power plant is the supercharged 6.2 liter LS9 V8 (the same as in the Corvette ZR1) tweaked by Hennessey to 725 bhp. The company will also be offering 1000 bhp and 1200 bhp twin turbo V8 engine variants. The mid-engine V8 will transmit its power to the rear tires via a Ricardo 6-speed gearbox.

Venom GT Hennessey Supercar

Hennessey plans to manage power output by using a programmable traction control system. CFD (computational fluid dynamic) tested bodywork and down force will also help keep the Venom stable at speed. An active aero system with adjustable rear wing will deploy under varying conditions on both the road and racetrack. An adjustable suspension system will allow ride height adjustments according to speed and driving conditions. Finally, power will be put to the ground via massive Michelin PS2 tires.

Venom GT Hennessey Supercar

Hennessey will be building the power plants at its Texas facility. The engines will then be air freighted to the company's assembly facility near Silverstone, England where the Venom GT is built and tested. Venom GT buyer will be offered a 1-day driver orientation and instruction program by a Hennessey factory test driver, at a track in the UK or USA prior to delivery.

Venom GT Hennessey Supercar

Zagato Alfa Romeo Sports Car TZ3 Corsa

Alfa Romeo and Zagato finally revealed the highly anticipated TZ3 Corsa at the Concours d’Elegance Villa D’Este, and boy is it special. Every line in this car’s gorgeous body is drawn with Alfa’s 100 years of heritage in mind, it screams passion! This priceless one-off is a racing car inspired by the early TZ models and features mono shell carbon fibre tubular chassis, coupled with a tubular frame and a lightweight aluminium body. It’s commissioned by German collector Martin Kapp, and he is now officially the world’s coolest man!

Zagato Alfa Romeo TZ3 Corsa

The Zagato-penned and developed Alfa Romeo TZ3 Corsa, which has been rumored for a while, was rolled out in a world premiere at this past weekend’s esteemed Villa D’Este Concours. And please be aware that this is not a show pony. Zagato pointed out, the Alfa Romeo TZ3 Corsa is not simply a design exercise, but a one off race special commissioned by German collector Martin Kapp.

The Alfa Romeo TZ3 Corsa was inspired by its 1960s ancestors, the first Alfa TZ and TZ2, the TZ3 Corsa. The current iteration is based on a mono shell carbon fiber tubular chassis (whatever that might be), joined with a tubular frame and a drop dead gorgeous lightweight aluminum body. It’s proportions are just spot on perfect, and the rear has a certain Kamm tail/GTO breadvan look to it.

Power comes from the Alfa 8c Competizione's 4.2-liter V8 engine. Situated under the alloy hood of the Alfa Romeo TZ3 Corsa, said mill develops 420-horsepower. Zagato says the racing car tips the scales at a lightweight 850kg or 1,874 lbs. Combine that little weight with that much engine, and the Alfa Romeo TZ3 Corsa is capable of accelerating from zero to 100km/h (62mph) in under 3.5 seconds topping out in excess of 300km/h or 187mph. Or so says Zagato.

The Alfa Romeo TZ3 Corsa by Zagato is not a design exercise, nor does it take inspiration from the 90 years of collaboration between Zagato and Alfa. The TZ3 Corsa race-car is basically a gift from Zagato to Alfa Romeo honoring 100 years of races and victories across the whole 20th century.

The TZ3 Corsa weighs in at only 1,870 pounds and is powered by a 4.2L dry sump V8 engine making 420-hp. Mated to a 6-speed sequential gearbox. the TZ3 Corsa goes from 0-62 mph in less than 3.5 seconds with a top speed of more than 185 mph.

Tribute to the 100th anniversary of Alfa Romeo’s Racing Heritage:

Alfa Romeo and Zagato achieved the best results since the beginnings thanks to the Mille Miglia victories of the 1500 6C, the 1750 GS and the 8C 2300 Zagato of the Scuderia Ferrari. Already in 1933 an official advert of the Alfa Romeo 8C proclaimed: “The Spider that, with the trio Alfa Romeo – Scuderia Ferrari – Carrozzeria Zagato, brought countless victories in the homeland and abroad for the honour of Italy.”

Even the grandiose Quadrifoglio Verde was placed on the bodies of Zagatos of the Alfa Corse team numerous times. Among the most glorious moments is the victory of the Formula 1 championship of Juan Manuel Fangio, aboard his Alfa Romeo 159 bodied by Zagato, as well as the victorious Alfa Romeo 3000 CM bodied in 3 samples by Zagato.

During the 60’s, the list of absolute victories of the Giulia TZ and TZ2 by Zagato for the Autodelta of Ing. Carlo Chiti, was never-ending. Some of the most memorable victories included the 1964 12 hours of Sebring, the Targa Florio, the Nurburgring, and the 24 hours of Le Mans.

The single-brand Alfa Romeo S.Z. championship emphasized the Alfa Romeo ES30’s (Experimental SportsCar 3000) technical and dynamic abilities. The S.Z. delivered, and continues to so today, constant performance and driving pleasure to the Gentlemen drivers of the Alfa Zagato team, across the most important racetracks in Europe.

2010 Mazda 3 i-stop

The Mazda booth at the 2009 Geneva Motor Show is greener than ever. One way to achieved Mazda is developing the single technology that idle the engine shuts off when stopped in traffic jams and similar situations, as a way of reducing fuel consumption.

The Mazda 3 will be powered by the MZR 2.0L DISI engine idle with green technology window - Mazda i the single system. Developed exclusively by Mazda, is the only idle stop system that restarts the engine using the remaining energy in the piston (with the help of a fast starter) by direct injection of fuel into the cylinder and cause to force the piston down. The benefit of the combination of a DISI engine with i-STOP (originally called SISS: Smart Stop inactivity) is that the system restarts the engine about two times faster, and quieter, than conventional idle stop systems.

The combination of these two patented technologies for Mazda and other aerodynamic modifications to help the new Mazda 3 reach approximately 14 percent lower fuel consumption (combined) than the previous Mazda 3.

When the driver stops the vehicle (red light, traffic jam) the engine stops automatically and is set to be ready for an early resumption. As soon as the driver presses the clutch, the engine is started automatically restart procedure. This is a completely neutral for the driver.


Mazda 3 i-stop green technology

When stopped at a stoplight or in a traffic jam, turn off the engine at idle can reduce fuel consumption by about 5 percent under city driving mode tests. However, the problem with the idle stop systems is that they are based solely on the use of an electric motor to restart the engine. As such, they require a long period of time to achieve combustion in the engine when it restarts. In the real world driving, this means a delay between the moment the accelerator pedal is pressed down and the car begins to move, as well as vibration and noise.

The i-stop for the new Mazda 3 takes the DISI direct-injection engine of the potential for improving fuel economy, restarting the engine quickly and quietly by direct injection of fuel into the cylinder and cause the the piston and rod set up. The motor is controlled with precision to make this happen:

Special motor requirements

To use the energy of combustion of the initial stages of restarting the engine and start the engine quickly, the following three conditions must be met while the engine is stopped. (1) The engine must be able to inject the fuel directly into the combustion chamber and ignite, (2) a sufficient amount of clean air must exist in the combustion chamber of the cylinder when the fuel is lit, and (3) control system the computer must be able to determine which cylinder fires immediately after starting the engine. The i-stop, so you must use a direct injection engine that can provide fuel to the combustion chamber under high pressure, and can easily ignite the fuel. Mazda MZR 2.0 DISI liters of gasoline engine is ideal for this.

Piston position control

The pistons are stopped at the appropriate position when the engine is stopped, an appropriate amount of air is maintained within the combustion chamber and the combustion chamber is evacuated due to reduce the amount of unburned gasoline. To this end, the position of the piston is controlled by applying current to the motor generator, while the engine is off. In this way, operates as an electric motor, while using the signal from the crank angle sensor that monitors the position of the control piston to stop the feedback in the appointment of the piston within its expansion stroke.

Special check valve and balancing of the crankshaft

To find the combustion chamber, the new Mazda 3 i-pause the system opens the throttle valve slightly during the shutdown process. (The valve is normally closed to shut off the engine.) Regulate the crank angle sensor can only be determined by the forward rotation, which leaves them unable to control or reverse rotation to determine the correct position of the piston. Mazda i stop using a crank angle sensor that is capable of controlling the rotation of the crankshaft in both directions, allowing you to accurately determine the correct position of the piston. To maintain the proper balance crankshaft when the engine is stopped, is slightly rotated in the opposite direction.

Faster restart + fuel

These measures make it possible to inject fuel properly when you restart the engine and the control of ignition advance, which allows the combustion energy to be used while the engine is stopped and to restart the engine in 0.35 seconds, about half the time required for conventional idle stop systems. While the new Mazda stop-i system employs combustion energy to restart the engine is assisted by the starter motor only for the first turns of the crankshaft. This achieves the optimum balance between maximizing the fuel savings and minimize the amount of time required to restart the engine. As a result, I will stop to reduce fuel consumption beyond what is possible through the combustion of energy by itself to restart the engine.

Driver support system of communication

On the new Mazda 3 is fed by the 2.0 DISI MZR engine, the i-stop driver supports allowing visual confirmation of operation in relation to the driving style. There is a i-on / off switch on the dashboard, the driver and the group contains a light that shows "i-stop" when the system turns off the engine in front of traffic lights, for example. When disabled, an amber light indicates that the i-stop is not in the system.

Ensure reliable operation

The new Mazda 3 i-stop system (only available with the MZR DISI 2.0-liter gasoline) is equipped with an auxiliary battery that powers the system if the main battery is not loaded properly or some similar problem occurs . This added measure of control ensures that the driver can use the natural system without giving a second thought. In addition, the system will not shut down the engine if the car is stopped on a road with a very steep grade (more than 14 percent incline).