Showing posts with label twin turbo. Show all posts
Showing posts with label twin turbo. Show all posts

Thursday, June 2, 2016

Mid-Engine Corvette Going To Happen - Update




Updated Again: 10/8/2018

Update
So a quick update on what could be one of the most exciting automotive days in my life. Living in the Motor City there has been a lot more talk that seems to be more fact than fluff about the new Mid-Engine Corvette.

Car and Driver, The GM Authority, Auto Week, Jalopink.com, etc. has all been posting on what might be - but I like facts. From sources I can't mention, the word is there should be renderings from Corvette designers (renderings that matter) out as soon as later this year and prototypes at the North American Auto Show in January of next year. And if anyone knows how Corvette does business, when they put something in the North American Auto Show, even if it is a prototype, that means unless something goes drastically wrong, it's going to make it into production.

My hope is Corvette (GM) takes a page out of the Ford Motor Company's play book and does something similar to what they are doing when it comes to purchasing-eligibility for the 2017 Ford GT supercar. Clients who want a chance to get put on the waiting list for the limited-edition Ford GT supercar have to fill out an application. The idea behind the application is to make sure that people who purchase one of Ford's limited-edition supercars will drive it, take it to car cruises and car shows and not stick them into their personal museums to be dusted off 20 years later and sold at an auction for profit. 

Along with the above-mentioned reason, most auto companies that create such wonderful works of art usually store a few of those priceless cars in their own museums anyway. Ford Motor Company, as like most auto companies want to see their vehicles driven, they want to see their beautiful designs being used for what they were designed for, having fun in them.  

But time will tell what happens, the closer Ford comes to getting their supercar out, Corvette will push harder to get their mid-engine Vette rolling and hopefully the competition will roll on harder than ever. 
6/1/2016


I have talked about the mid-engine Corvette in the past, its possibilities of finding its way into the Corvette lineup and what it would mean for GM, Chevrolet and Corvette. After many exciting years of maybes, it's possible, it's just a cool thought and nothing more – the Godfather of the Corvette, Zora Arkus-Duntov, has made it pretty clear that the public will see a Mid-Engine Corvette revealed possibly as soon as the L.A. Auto Show late this year.

Although this would be new to the public eye, it is a well-known fact that Corvette has been working on and has come up with a pretty permanent version of a Mid-Engine Corvette. The drivetrain solutions are said to include a seven-speed manual transmission and an LT1/LT4 700-hp twin-turbocharged engine.

Unfortunately, the many renderings I have seen, which is not much to my surprise, looks almost just like a Ferrari with Corvette badges. And I say not much to my surprise because if you look at a 2016 Corvette Z06 and compare it to a 2016 Ferrari F12, put them in the same color, you can very easily mistake them for one another from a distance (my opinion).  

When this does happen, the word out is that most of the front-engine Corvettes will still be very much a part of the Corvette lineup and most likely none will be bumped out as a result of an extra Corvette coming in. The front-engine Corvette is part of the iconic brand as we know it. If anything, the Mid-Engine Corvette will be more for just breaking track records, giving the Ford GT and other Mid-Engine competitors a run for their money, and or to sit in a rich person's car collection.



When the Mid-Engine Corvette does become an available vehicle for the public to purchase, you won't be able to just go to any dealership and buy one or have one serviced by any dealership under warranty. Selected dealerships with a great reputation for sales and customer service will be high on the list of places that will have the honor of selling and promoting the Mid-Engine Corvette, and of course, three other things will help decide where they will be available at – location, location, location.

The price tag for one of these Corvettes is going to most likely be out outrageously high. That is why location will be a huge part of deciding where they will be sold. If Corvette is thinking about competing with the Ford GT, and when has Chevy ever not tried to compete with Ford, the price tag will likely find its way up into the $350,000 to $400,000 range. That is a supercar status price tag, but Chevrolet has yet to fail on any attempt to make a sports car or supercar worth every penny in the past 10+ years.

3/16/2016

Saturday, July 27, 2013

Cadillac's Turbo Technology

Where is Cadillac Today?                        


Cadillac has been a leading luxury auto brand since 1902. Today Cadillac is growing globally, driven by an expanding product portfolio featuring dramatic design and technology. More information on Cadillac appears at www.cadillac.com. Cadillac's media website with information, images and video can be found at media.cadillac.com.


 

No More Turbo Lag

Turbocharging increases power and performance with efficiency, but the delay in the delivery of power – known as “turbo lag” – has historically been its key limitation.

That’s about to change.

Cadillac’s first-ever Twin-Turbo, available on the 2014 CTS Vsport midsize luxury sedan and XTS Vsport full-size luxury sedan in the U.S. this fall, kicks turbo lag to the curb with a unique combination of smaller turbochargers, top-mounted throttle body and shorter air pathways.

The Cadillac Twin-Turbo V-6’s patented air flow design, which eliminates circuitous heat-exchanger tubing, makes the most of engine packaging efficiency to improve torque response time over other air flow designs.



Rated at 420 horsepower on the all-new 2014 CTS Vsport and paired with Cadillac’s first eight-speed transmission, the Twin Turbo is one of the most power-dense engines in the midsize luxury sedan segment, rated at an SAE-certified 420 horsepower and 430 lb.-ft. of torque.

Air flow routing volume is reduced by more than 60 percent when compared with a conventional design that features a chassis-mounted heat exchanger. The water-to-air cooler system achieves more than 80 percent cooling efficiency with only about 1 psi flow restriction at peak power for fast torque production.

“By creating a very short path from the turbos to the throttle body, the compressors are able to draw air directly from the inlet box and send pressurized air through the intercooler immediately,” said Richard Bartlett, Cadillac assistant chief engineer for the 3.6L engine. “This gives the driver a more immediate feeling of power on demand.”

Using two smaller turbochargers rather than a single larger turbo also helps ensure immediate performance because smaller turbochargers spool up quicker to generate horsepower-building air pressure that is fed into the engine. An integrated charge air cooling system also contributes because the compressors blow through very short pipes up to the intercooler.

The single centrally located throttle body atop the engine controls the air charge from a pair of turbochargers after the temperature is reduced in the intercooler. This design fosters more immediate torque response and reduces complexity by eliminating the need for a pair of throttle bodies.

Together smaller turbochargers, top-mounted throttle body and shorter air pathways help sustain peak torque over a broad range – 1,900 to 5,600 rpm – for a confident feeling of power in almost all driving conditions, such as accelerating or overtaking traffic on the highway.

“The Cadillac Twin-Turbo intercooler design builds on our experience with the 6.2L supercharged engine used on the current CTS-V Series,” Bartlett said. “That means more performance for drivers without sacrificing efficiency.”