Skip to main content
HOME   |   ABOUT   |   NEWS   |   TECH ARTICLES   |   AT THE TRACK   |   REVIEWS   |   VIDEOS   |   CONTACT ME

2014 Corvette Stingray makes 460 hp!




When GM revealed the 2014 Corvette Stingray, 450 hp and 450 lb-ft of torque were the estimates for engine output (full post: The Stingray is back! Details about the new 2014 C7 Corvette). It is GM tradition, though, to reveal hp numbers that are slightly lower than actual ratings and the C7 Corvette is no different. When equipped with the optional performance exhaust, it makes 460 hp (343 kW) at 6,000 rpm and 465 lb-ft (630 Nm) of torque at 4,600 rpm, as shown above on the SAE engine dyno graph. With the standard exhaust, the numbers drop by 5 hp and 5 lb-ft of torque to 455 hp and 460 lb-ft of torque.

The closest competitor to the Corvette in terms of performance is the Porsche 911 Carrera and these numbers put it well ahead of the pack. The Porsche 911 Carrera makes 350 hp and 287 lb-ft of torque and the Carrera S makes 400 hp and 325 lb-ft of torque, 110 hp and 60 hp lower the Corvette's numbers and even much lower torque. It doesn't just make higher gross numbers, though - with a 3,298 curb weight, the Corvette has a weight-to-power ratio of 7.17 lb./hp (power-to-weight ratio of 308 hp/ton) vs 8.68 lb./hp (254 hp/ton) for the Carrera and 7.69 lb./hp (287 hp/ton) for the Carrera S so although the Corvette weighs more, it carries less weight per hp.

Looking at peak output numbers doesn't tell the complete story about an engine though. The engine should pull strong throughout the rpm range, with 316 lb-ft of torque available at a mere 1,000 rpm and 90% of peak torque (419 lb-ft) available from 3,000 rpm to 5,500 rpm. In other words, it makes more torque at any point in the rpm range than the 911 Carrera makes at peak. The Corvette is expected to run from 0-60 mph in under 4 seconds. GM didn't design this engine around just power numbers and it continues to impress in other areas.




The engine utilizes multiple technologies, such as direct injection, Active Fuel Management, and continuously variable transmission, which optimize combustion and improve efficiency. Direct injection ensures a more complete burn of the fuel in the air-fuel mixture. That's achieved by precisely controlling the mixture motion and fuel injection spray pattern. Direct injection also keeps the combustion chamber cooler which allows for a higher compression ratio. A new cylinder head design and a new, sculpted piston design that is an integral contributor to the high-compression, mixture motion parameters enabled by direct injection.

Active Fuel Management (AFM) is a cylinder deactivation technology which saves fuel by seamlessly shutting down half of the engine's cylinders in light-load driving conditions, such as cruising on the highway. Continuously variable valve timing is refined to support the LT1 AFM and direct injection systems to further optimize performance, efficiency and emissions, which are reduced, particularly cold-start hydrocarbon emissions, by about 25%.

Additional engine features include:
  • Advanced oiling system with oil-spray piston cooling and available dry-sump oiling
  • Engine-mounted, camshaft-driven fuel pump to support the direct injection system
  • Intake manifold with "runners in a box" design that allows for high-efficiency airflow packaged beneath the Corvette's low hood line
  • high-flow, four-into-one exhaust manifolds based on the design of the LS7, 7.0-litre engine.

The Corvette Stingray coupe goes on sale this fall, with a convertible following by the end of the year. So far, every GM press release has been very promising so I highly doubt test drives will be disappointing.

Source: GM


Comments







Does An Aftermarket Grille Really Increase Airflow?
I put a Saleen S281 grille to the test to answer that question.

Stock Suspension S197 Mustang With Square 305/30/19's
What you need to fit a proper size square tire setup.

How Limited Slip Diffs Make You Faster on Track
What you need to know about how they put power down and pros and cons.

Can Telemetry Explain Schumacher's Talent?
A comparison between Schumacher's and then team mate Herbert's data.






Cayman GT4 Track Review
The first Cayman with proper (911-challenging) power.

Is an EcoBoost Mustang any good on Track?
Two days at the track in a Mustang short 4 cylinders.

2016 BMW M4 DCT Track Review
It's quick (properly quick). But is it fun?

Can a stock Golf Diesel handle a Track Day?
Not your every day track beater.




🔥 Most Visited This Week

How would a Mustang 3.5L EcoBoost compare to the 5.0L V8?

Ever wonder how a 3.5 litre EcoBoost might fair against the 5.0 litre V8 in the Mustang? Of course you have. Ever since Ford dropped it in the F150 (and perhaps well before), everyone has been wondering how it would perform. There are basically two camps; those who think it would be awesome because of tuneability and power potential and those who think it means the death of the V8 in the Mustang. If you are in the latter group, we seem to be good so far with continuous upgrades to the 5.0 litre Coyote and the brand new Shelby GT500 which still uses a supercharged V8 as it has been for over a decade and multiple iterations. But what if...

Well, it seems we are closer than ever to finding out the answer to that question. American Trucks recently got together two crew cab, short box, 4x4 F150's but one has the 5.0 litre V8 and the other has the 3.5 litre EcoBoost V6. There has been a few comparisons between 5.0 litre and 3.5 litre EB F150's, but this seems to be the most direct …

The Truth behind Owning a Modified Ferrari 458 Italia

After driving and reviewing this modified 620 hp Ferrari 458 Italia, I talk to the owner to find out the truth behind owning and living with a modern Ferrari. This isn't a garage queen Ferrari either, it serves double duty as an every day car and track car. Watch to find out ownership costs, reliability, and experience. Interested in joining Scott at the track? Check out MHPDC.

Liked this? Make sure to subscribe so you don't miss new videos!



Follow Rams Eye The Track Guy on Facebook and Instagram!






View this post on Instagram
A post shared by Michael R (@ramseyethetrackguy) on May 21, 2019 at 5:17pm PDT

Michelin Pilot Super Sports vs Firestone Firehawk Indy 500 - Street Review

I've been a huge fan of Michelin PSS tires and exclusively bought them for the Mustang over the last four years. So how did I end up here? This year, I was hugely interested in trying an "R-comp" tire. I had my eyes set on Bridgestone Potenza RE-71R's for two simple reasons: price and reputation. Although not a true "R-comp" tire on paper, it performs like one by the account of every single test and review I've read (down to wear rates...). They seem like they're easily the most affordable (from a big brand) R-comp tire and combine that with a reputation for having tons of grip, it was an easy top contender. I had my concerns, though. For one, I'm told and have read that they are an autox tire, not really designed for high speed, pressure, and temps associated with open track. For another, the Mustang is a heavy car (as far as track cars are concerned) being roughly 3,800 lb. (including driver), which will amplify the unwanted open track loads.…

Stock Suspension S197 Mustang With Square 305/30/19's

If you've had any doubts about whether or not they will fit, fear not! You absolutely can run square 305/30/19's. I had a lot of doubts before pulling the trigger, even more so when the wheels where on the car. The tires do poke out a bit and I figured rubbing is all but guaranteed at full compression but I couldn't be happier I trusted APEX and those on here who have run it.

Here's what you need:

1. Camber plates: I have MM C/C plates and they are maxed out at -2.3 deg with the stock struts. I have been running them for years with many track days without issue.

2. 1"/25 mm spacer: I have Motorsport-tech 1" spacers and they look like high quality units. There is maybe a 1/4 inch clearance in the back so you can't go any narrower than 25 mm. http://www.motorsport-tech.com/adaptec/car/ford_s and you want Design 2.


3. Elongated studs: your best bet is to get the FPP hubs with elongated studs instead of reusing the old one. Bearings are consumables anyway so…