Porsche 928 rally car Redrock.avi
Alan Courtney and Paul Soutar take the 928 along the Redrock stage during the 2012 Circuit of Ireland.
New Funny Corvette ZR1 2011 Sebring ALMS Commercial - 2013 CCTV Car TV HD
CCTV - Car Commercial TV HD Cool Car Commercials Sexy, Hot, Funny, Banned Car Commercials Subscribe 4 More CCTV fun.... The Chevrolet Corvette C6 ZR1 (nicknamed "The Blue Devil") is a high performance version of the Chevrolet Corvette C6. Both the C3 from 1969--1971 and C4 Corvettes from 1990-1995 also had ZR-1 models. he Corvette ZR1 engine is a heavily modified version of the LS3 Corvette engine, designated the supercharged LS9 Corvette engine. Producing 638 hp (476 kW; 647 PS) and 604 lbf·ft (819 N·m) of torque, it is the most powerful production Corvette to date. The LS9 has a sixth-generation Eaton TVS R2300 roots 4-lobe Supercharger with Intercoolers from Behr, utilizing an air-to-water, dual-brick design. The Supercharger's four-lobe design offers improved efficiency over three-lobe models. To avoid changes to the hood appearance, the Supercharger's output was split into two halves. Each cylinder bank has an Intercooler. The cylinder walls of the LS3 are thicker than the Z06's LS7 since the LS3 has a smaller bore. Oil squirters under each piston help cool the pistons. Connecting rods and the inlet valve are made of titanium. Heads are made from a special heat resistant aluminum alloy. The camshaft lift was reduced from the LS7's to improve idle quality. With the addition of the Supercharger to the 6.2 liter LS9, the higher lift camshaft was no longer necessary to achieve horsepower targets. Lubrication is provided by an improved version of the LS7's dry sump system. The new system increases oil capacity from 8.0 to 10.5 quarts (9.94 liters). A new dual gerotor oil pump increases scavenge performance and oil pressure, enabling oil to be delivered under the most extreme conditions. The LS7 oilpan is used for the LS9 with the addition of an oil cooler which is mounted on the left side of the pan. With the 2011 model, GM offers the optional "Corvette Engine Build Experience," where the customer visits the General Motors' Performance Build Center to help assemble the LS9 for the ZR1 purchased. Factory technicians supervise the process and the normal warranty covers the engine built by the customer's hands. Transmission The ZR1 flywheel has been improved over the 2008 Z06. The flywheel was upgraded by going from six to a 9 bolt design and cutting off nearly 9.8 ounces (278 grams) for improved throttle response and acceleration. The ZR1 has a 6-speed manual Tremec TR-6060 transmission with a MH3 gearset, while the 2008 Z06 featured the MM6 gearset. Differential/drive The differential is a limited slip with carbon and steel plates. The differential uses SAE 5W-80 Dexron LS lubricant. The two half shafts have different diameters (33mm left, 40mm right), designed to prevent resonance during acceleration and reduce the chances of wheel hop. http://en.wikipedia.org/wiki/Chevrolet_Corvette_C6_ZR1
Porsche 928, German Muscle
The owner of a 1980 Porsche 928 reflects on his soon to be sold car that he said he would never sell. The 928 is a very special car and it is both under rated and under valued.
Senna Mclaren F1 car vs road car vs sports car
An interesting test around estoril where Ayrton senna driving a 1990 mp4-5b goes up against a normal road car and a Porsche sports car. This video demonstrates the awesome speed of an f1 car and is quite a rare video taken from a McLaren documentary made back in the 1990's. Enjoy !