Porsche 911 GT3 and dodge viper srt 10 and audi R8 race on the autobahn
In 2008, with the introduction of the 510 cu in (8.4 L) V10, the Viper
produced 600 bhp (450 kW) at 6000 rpm and 560 lb·ft (760 N·m) at 5100
rpm, and also received better flowing heads with larger valves, Mechadyne
cam-in-cam variable valve timing on the Exhaust cam lobes, and dual electronic throttle
bodies. The rev limit was able to be increased by 300 rpm due to the
improved valve-train stability from both the new camshaft profiles and
valve-springs. The development of the engine was done with some external
assistance from McLaren Automotive and Ricardo Consulting Engineers.
Electronic engine control is developed by Continental AG, the controller is
capable of monitoring the crankshaft and cylinder position up to six times
during each firing and has 10 times more processing power compared to the
Changes outside of the engine were less extreme. The Tremec T56
transmission has been replaced with a new Tremec TR6060 which now has
triple first gear synchronizers and doubles for higher gears. The Dana
M44-4 rear axle from the 2003-2006 model now has a GKN ViscoLok
speed-sensing limited-slip differential that greatly helps the tires in
getting grip under acceleration. Another performance upgrade was the
removal of run-flat tires; the new Michelin Pilot Sport 2 tires have
increased driver feedback as well as grip and, along with revised
suspension (springs, anti-roll bars, and shock valving), has made the Viper
more neutral in cornering.
The Audi R8 was initially equipped with a 4.2 litre V8 internal combustion
engine. Specific detail: it is an all-aluminium alloy 32-valve (four valves
per cylinder) petrol engine, utilising Fuel Stratified Injection (FSI), and
has a displacement of 4,163 cc (254.0 cu in). It develops a motive power
output of 309 kilowatts (420 PS; 414 bhp), and generates 430 newton metres
(317 ft·lbf) of torque, on 98 RON 'Super Unleaded' petrol. It is basically
the same engine used in the B7 Audi RS4, but is modified to use dry sump
lubrication system. This V8 is a highly reworked, high-revving variant from
the existing 4.2 litre V8, but includes cylinder-direct fuel injection
(Fuel Stratified Injection), and four valves per cylinder, instead of five
(as used on the non-FSI variants). It also uses two chain-driven dual
overhead camshafts (DOHC) per cylinder bank, and utilises variable valve
timing for both inlet and Exhaust
A new additional variant with a 5.2 litre Fuel Stratified Injection (FSI)
V10 engine was added on the 9th of December 2008, which produces 386 kW
(525 PS; 518 bhp) and 530 N·m (391 ft·lbf).
The transmission options are either a Lamborghini sourced manual gearbox
with metal gate for the shift lever, or an Audi-developed "R tronic"
gearbox - which is a single-clutch semi-automatic electrohydraulic manual
transmission, without a traditional clutch pedal. These options are the
same as those available on the Lamborghini Gallardo. A double-clutch
Direct-Shift Gearbox (DSG), now badged by Audi as "S tronic", is not
available (as of December 2008
As with earlier models, such as the Carrera RS 2.7 of 1973 and the Type 964
911 RS of 1991, Porsche offered an RS version of the 997 GT3. In common
with its predecessors, it provides a homologation model for use in a range
of racing series.
Thanks to a close-ratio six-speed transmission with a single-mass flywheel,
the engine revs up even more freely, thus enabling the 911 GT3 to sprint
from zero to 100 km/h (62 mph) in 4.0 seconds while reaching 200 km/h (124
mph) in 13.3 seconds. Maximum speed is 310 km/h (193 mph).
The RS is 20 kg (44 lb) lighter than the GT3, weighing in at 1,375 kg
(3,031 lb). This weight-saving was achieved by the use of an adjustable
carbon fiber wing, a plastic engine cover, and a lightweight plastic rear
window. The weight savings gives the RS model corresponding engine power to
curb weight ratio of 300 bhp (220 kW) per tonne.
One characteristic of the new RS is the body, which is 44 mm (1.7 in) wider
at the rear (a legacy from the Carrera 4 models with which it shares its
shell) by comparison with the 911 GT3. The muscular-looking rear end
conceals a wider track that not only improves directional stability but
also increases the potential cornering grip of the two-seater coupe. On the
other hand, drag is increased, and top speed reduced.
In addition to the new technology featured in this flat six motor car, the
paint scheme and body panels are all designed specially for this car. For
the RS version, the limited edition orange color was mixed specially for
Dodge Viper SRT-10 - Acceleration, Start Up, Engine Sound, Rev, and Exhaust Note
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Josh Goler and Darius Tavasoli spot a beautiful yellow Dodge Viper SRT-10
as it Starts Up and then get the driver to rev it for a sweet Exhaust Note. The video finishes with the Viper
launching into the night.
Video capture by Josh Goler and Darius Tavasoli
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Burnout Super Test Part 2: Viper SRT-10 vs. Corvette Z06 Carbon
Burnout Super Test Part 2: Viper SRT-10 vs. Corvette Z06 Carbon:
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ME driving a 2009 dodge viper for at my open house
Corvette C6 Z06 - Brutal acceleration sounds!!
During a Z06 meeting earlier this year, I have recorded many Corvettes
accelerating away. Some of them has an aftermarket Exhaust, like Borla Exhausts and Melrose Exhausts. Everytime I heard the sound of a
Corvette C6 Z06, I'm in love. The sound is very loud and powerfull.
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Corvette C6 Z06 vs. 2003 Viper SRT-10
The two American muscular machines meet head-on.
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