Autoblog

The LS3 Corvette and the Audi R8 are have a similar purpose, but go about their jobs in completely different ways. The 'Vette is all about a big engine, with big power and pushing the rear wheels. The R8 utilizes a high-revving 4.2L V8 and AWD to keep the rubber firmly planted on the pavement. Both vehicles have over 400 hp, weigh in at under 3,500 lbs and have similar 0-60 times, but for the price of one R8 you could by a LS3 and Z06 Corvette.

The car nuts over at Web Rides TV put the two vehicles through a "Super Lap" consisting of a slalom, a straightaway, and two sharp turns to see which vehicle would come out on top. The result produced an entertaining video, some great sounds and a very clear winner. Hit the jump to see it for yourself.



[Source: Web Rides TV]

Click either image for a high-res gallery of the Vauxhall VXR8.

Our friends across the pond finally get to enjoy the new LS3 that's currently powering the Pontiac G8 GXP and Holden Commodore HSV, with the revised Vauxhall VXR8. The upgraded V8 has grown from 5,967 cc to 6,162 cc and is producing 425 hp at 6,000 rpm. Coupled with the revised automatic gearbox, 0-60 times drop to 4.9 seconds (from five), and the run from 80 to 100 mph is reduced from 4.3 seconds to four seconds flat. Fuel economy remains the same as the outgoing LS2 and automatic-equipped models now get a transmission cooler standard. The new VXR8 is currently on sale in the UK for £35,695, an extra £485 over the outgoing model.

Hit the jump for the full press release.


[Source: Vauxhall]

Click the photo above for pics of the ZR1 Corvette and its LS9 engine

Yesterday we showed you an overview of the Corvette ZR1's heart, the force-fed 6.2L LS9 small block V8. In naturally aspirated form, the LS3 powerplant hits in the base 2008 Corvette hits 436 horsepower, but the addition of a new four lobe Eaton supercharger lifts the ZR1 into the horsepower stratosphere. Ron Meegan, assistant chief of GM's small block engine program, took us through the ins and outs of the ZR1's efficient new supercharger and we had our cameras rolling. Hit the jump to learn how the Eaton supercharger works and what makes it special. We also attached a one-minute video that details some of the differences between the supercharged LS9 V8 in the ZR1 and Cadillac CTS-V.

When we told you about our first encounter with Chevrolet's new 2008 Corvette, one of the highlights was the new LS3 engine. Up from 6.0 to 6.2 liters, the new base 'Vette motor promisea 430 hp, or 436 with the optional exhaust. That was a 30 hp bump over the '07s. Not content to let sleeping dogs lie, the gang over at LG Motorsports decided to strap one to a dyno to verify those numbers. And the results were spot on.

First up was the 6-speed auto. It returned a plot that showed peak horsepower of 370.8, with torque at 363.8 ft-lbs. With a drivetrain loss of about 16%, that is spot on. Next up was the 6-speed stick. It came back almost 20 hp better than the slushbox. The numbers were 389.5 hp and 377.4 ft-lbs of torque. That shows about a 10% loss for that engine/transmission combo. Even better.

And then, just for kicks, LG added "longtube headers, performance cam, ported intake, K&N aircharger, under-drive pulley and a custom tune" and got a quick boost of more than 100 hp at the rears. That car now shows 506.7 hp and 457.1 ft-lbs... at the wheels! One of the best performance for the dollar bargains on the planet, this '08 Corvette seems ready to take on the world.

[Source: Dragtimes]

We're back with #64 after being laid low by illness and schedule last week. Starting it off is some analysis of the 430HP LS3 Corvette, which we were lucky enough to see unveiled in Bowling Green, KY. 430 horses in the base car...nice. Speaking of rear-wheel-drive sports cars, there's yet another special Mustang, the Super Snake. It's upper limit of 725 horsepower has instantly rendered the GT500KR that debuted in New York totally irrelevant. Wake us up when the rollouts of special Mustangs are over. *Yawn* Of course, we still manage to talk about some hot 'Stangs for a few minutes. We wrap the whole deal up with the new Hyundai coupe based on the Genesis sedan's architecture. Whether it's the new Tiburon (finally a contender?), we don't know. Nor do we know if the rendering we've seen is anywhere near accurate, but Hyundai's continuing with their aggressive push, so we'll see where it leads. It's a tight 27 minutes this week, so enjoy!

SUBSCRIBE to the Autoblog Podcast in iTunes
LISTEN to the show now
ADD the Autoblog Podcast feed to your RSS aggregator

Click here for gallery

The official unveiling is apparently set for this Saturday, April 28 at the C5/C6 Bash at the National Corvette Museum in BowlingGreen, but thanks to a poster at Digital Corvettes, you can get sneak preview of the 2008 Corvette and its LS3 V8 right now. The new mill is expected to pump out 430 horsepower, and the '08 Vette will also sport new 5-spoke wheels and interior tweaks, among other things. We'll have to wait until the weekend for the full dog & pony show to go down, but one thing's certain: the presence of 430 standard horsepower will only further cement the Corvette's standing as an unbelievable performance value. Production of the LS3-powered Vettes is scheduled to start this week.

Thanks for the tip, Drew!

[Source: Digital Corvettes]