Showing posts with label Shelby. Show all posts
Showing posts with label Shelby. Show all posts

Thursday, July 15, 2010

Ford to limit 2011 Shelby GT500 production to 5,500 units

2011 Ford Shelby GT500


We've just gotten off the horn with Ford's SVT performance division, and we've learned that the Blue Oval's hot-rod arm is going to limit production of the 2011 Shelby GT500 to 5,500 units for this model year. According to Ford spokesman Henry Platts, the move is not the result of slow sales, but rather a desire to maintain exclusivity. In fact, sales of Ford's king of the Mustang range have "exceeded expectations," with in excess of 3,300 orders already placed.

The 550-horsepower GT500 has not only been performing surprisingly well in a down economy, it's been going out the door loaded-to-the sills with options. According to Platts, there have been three times as many GT500 coupes ordered with the $1995 glass roof option as compared to the regular Mustang. In the "News That Makes Us Happy" category comes word that a full 68 percent have been spec'd out with the $3,495 performance package (includes 19- and 20-inch painted forged alloys, 3.73 limited-slip, tuned suspension, Gurney flap rear spoiler, etc.), and additionally, 70 percent of all GT500s have been ordered with the $2,340 electronics package (navi, dual-zone HVAC and Sirius/HD radio). With the GT500 starting at an out-the-door price of $49,495 before options, we're guessing that the GT500 is more than carrying its weight for Dearborn's bottom line.

While Ford is limiting total output of the GT500 to 5,500 units for 2011, Platts says the automaker has no plans to dictate how that shakes out in the coupe/convertible bodystyle mix. That said, if you've been fence-sitting on whether to pick up a GT500 of your very own this year, might we suggest that you make up your mind... quickly.


[Source: Ford]

Wednesday, February 10, 2010

Chicago 2010: Aluminum-ized Ford Shelby GT500 treads lightly on show floor

2011 Ford Shelby GT500

Like the 2011 Mustang GT at last month's Detroit Auto Show, the 2011 Shelby was unveiled here at the Chicago Auto Show with little fanfare. In fact, there wasn't an unveiling at all, as the new Shelby was sitting uncovered on the show floor as soon as we arrived. The car looks fantastic in person, especially with the optional Performance Package and its 19-inch forged aluminum wheels, and the thinner stripes look better than we expected.

The best part about the 2011 GT500, however, is underneath the hood. Ford has finally thrown out the heavy iron block in favor of an aluminum unit that contributed to a significant weight savings of 120 pounds. The GT500 still isn't a lightweight at 3,820 pounds, but we fully expect the handling to be improved over the 2010 model with all that weight removed from the nose.

Monday, February 8, 2010

2011 Ford Shelby GT500 finally gets aluminum engine, loses 120 pounds

2011 Ford Shelby GT500

Ever since Ford introduced the modern Shelby GT500 four years ago, almost no one has complained about the prodigious power levels produced by its supercharged 5.4-liter V8. With as much as 540 horsepower and 510 pound-feet of torque in the 2010 model, there was no shortage of grunt. No, the issue was an excess of mass.

Before the contemporary GT500 was born, Ford had a blown aluminum block 5.4-liter V8 in the short lived GT supercar. However, when the engineers at Ford's Special Vehicle Team developed the GT500, they opted to mount the GT's cylinder heads on the cast iron block used in the big F-Series pickup trucks. After debuting a visual refresh for the Mustang a year ago, Ford has spent the last two months announcing fresh new powertrains for the base and GT models. That process has now come full circle with SVT rolling out a heart transplant for the Shelby GT500. The 2011 model finally has the aluminum powerplant we all wanted when it debuted, and the effect is absolutely en-lightening.

The SVT engineers actually had a reason for going with the iron block in the first place. Mustangs like the GT500 and its Cobra ancestors often end up being heavily modified for use at drag strips and race tracks, and the SVT crew wanted to make sure the standard block could stand up to the rigors of those significantly higher outputs. They chose not to use an aluminum block until they had a chance to develop one with the same strength as the iron version, and that time has now come.

We recently had a chance to sit down with GT500 chief nameplate engineer Jamal Hameedi in his office at SVT's headquarters to learn more about what's new for 2011. Switching to an aluminum block was a bit more complicated than simply digging out the casting molds that were used for the GT. The engine in that 200+ mph supercar used a dry sump lubrication system and featured iron cylinder liners. The new GT500 engine is derived from the structural design of the older block but retains the wet sump system used in other Mustangs. The real magic is something that most owners will likely never actually see.



Last June we learned about an award that several Ford researchers had received for a cylinder bore coating system they developed called the Plasma Transferred Wire Arc (PTWA) process. The Ford press release at the time framed the award in terms of fuel efficiency and gave no real hint about what was about to come. It now turns out that the first production Ford to use the PTWA process will be the 2011 GT500.

Nissan actually licensed PTWA from Ford for use on its V6 engine in the GT-R.
The heart of the PTWA process involves feeding a steel wire into a device that heats it up to 35,000 degrees Fahrenheit and then sprays it onto the aluminum cylinder bores. Ford is not actually the first company to use a process like this. Similar mechanisms have been used to coat the fan blades in jet engines for a number of years. One of the primary differences is that Ford is using PTWA with a conventional steel alloy rather than some super exotic aerospace material. Ford isn't even the first automaker to use this specific coating process. That honor falls to Nissan, which actually licensed the technology from Ford for use on its V6 engine in the GT-R.

Hameedi believes that Ford has an important advantage over Nissan. Anyone that has ever used a teflon-coated pan is familiar with the problem of the non-stick coating peeling off over time. In the past BMW has also had issues with the nickasil coatings prematurely separating on some of its aluminum blocks. Getting any dissimilar materials to adhere to each other is always a problem, so the initial surface has to be specially prepared in order for the coating to have something to hang on to. Nissan licensed Ford's coating technology but used its own surface preparation process. According to Hameedi, Ford's surface preparation works so well that even after engines have gone through a full durability cycle the bores still look like new.



Using the PTWA process allows the block to have a thinner surface coating – only 150 microns deep – that is just as tough as one with cast or pressed-in iron or steel liners. However, using less material results in lower weight. According to Hameedi, the GT500 block is 8.5 pounds lighter than the sleeved GT version. Overall, the complete engine is 102 pounds lighter than the 2010 cast iron engine. The steel coating has also helped Ford reduce the internal friction of the engine, aiding both efficiency and power production.

Hameedi explained that some drag racers complained of power drop off on humid summer days, which was attributed to reduced heat transfer efficiency. SVT addressed this with a larger intercooler that helps the engine deliver more consistent power over its entire operating range as well as under different environmental conditions. Hameedi tells Autoblog that the new aluminum block engine should be able to survive "at least" as much maximum power in modified form as the iron block equivalent. Also aiding breathing is a larger exhaust system with 2.75 inch header pipes like those on the new 5.0-liter in the Mustang GT. Out of the box, the new powerplant delivers 10 more horsepower bringing the tally up to 550 hp with the same peak torque of 510 pound-feet. Eighty percent of that torque is available everywhere between 1,750 rpm and 6,250 rpm.



For 2011, Hameedi tells us "We're at the top of the power heap, we're the fastest accelerating vehicle, so this really wasn't about going any faster in a straight line. This was about improving the weight distribution and handling of the vehicle." The new engine contributed to a 120 pound overall weight reduction with most of that coming off the front axle. Most of the rest of the weight loss came from new lighter weight wheels that are part of the SVT Performance Package. The front wheels that come with the Performance Package remain 19 inches in diameter but are 4.7 pounds lighter. The rears grow to 20 inches but are still 2.8 pounds lighter. Cutting unsprung mass is never a bad thing when it comes to both ride quality and handling. Along with the extra rear grip provided by the larger Performance Package wheels and tires, SVT has added a 3.73:1 rear axle ratio.

The 2011 GT500 is three seconds faster around a certain un-named northern California racetrack.
Like other 2011 Mustangs, the GT500 gets a new electric power assist steering (EPAS) system that Hameedi describes as "extremely precise." At parking lot speeds, he describes the steering effort as Lincoln-like but it rapidly builds up as you drive more aggressively and it supposedly has excellent on-center feel, something that is often tough to achieve with EPAS. We'll have to wait a few more months to find out just how precise that is since we won't get to drive the car until Spring.

Getting any high-powered car to accelerate, stop or turn is highly dependent on the adhesion between the tire and the road surface, especially when it's wet. SVT has adopted the latest generation Goodyear F1 supercar tires for the 2011 GT500, which Hameedi says are "a major step" beyond the previous version in both wet and dry grip. With the reduced mass on the front axle, SVT has also modified the spring and damper rates on both base and Performance Package models. The latter version gets 20.5-percent stiffer front springs and 9.5-percent tighter rears that also bring the front end 11 millimeters closer to the road and the rear 8 mm lower.



One of the main criticisms of the Mustang convertible ever since the S197 debuted for 2005 (actually ever since pretty much forever) is a lack of structural integrity. Because of that flexibility, the 2010 model GT500 convertible was actually considered more of a cruiser model and was thus tuned more for ride comfort than handling. Thus the old convertible was only available with 18-inch wheels. For 2011, SVT took the lead on developing an upgraded body structure for the convertibles that should help keep the corners of the car from moving relative to each other. The effort was successful enough that the changes are being implemented across the board on all 2011 Mustang convertibles. The 2011 GT500 convertible also gets bumped up to the 19-inch wheels and offers handling that is supposedly much closer to the coupe without degrading the ride comfort.

For those who want the sun to shine but still want the extra stiffness of the coupe, the GT500 is now available with the glass roof that has been available on regular Mustangs for the past two years.



Regardless of the roof type, Hameedi tells us that the GT500 has "a very different driving experience driving an '11 from a '10, they're much more nimble, they feel more alive, the steering is quicker." The straight-line acceleration was improved by about 1/10th of second, but overall drivability and handling are said to be vastly improved. The upgrades are far more apparent on a road course than they are at the drag strip. According to SVT spokesman Patrick Hespen, the 2011 GT500 model is three seconds a lap faster than the 2010 around a certain un-named 2.3-mile-long, northern California racetrack that happens to play host to a big historic racing event every August. Closer to home at Grattan raceway in west Michigan, the 2011 GT500 is also about 2.5-3 seconds a lap faster. Given the relatively modest power increase, those are some big numbers.

The Performance Package also gets some modest visual differentiators including narrower racing stripes down the center of the body along with the new wheel design. Inside the car, the shift knob on the Performance Package model lacks the stripes found on the base model.



While most GT500 drivers are unlikely to be too concerned about fuel efficiency, it is a political and commercial reality that Ford does have to deal with. The EPA rated the 2010 GT500 at 14 mpg city and 22 mpg highway and slapped a $1,000 gas guzzler tax on the hood. The addition of EPAS, reduced mass and reduced friction all helped to improve the 2011 GT500's EPA numbers to 15 and 23 mpg and cleared the GT500 of the dreaded guzzler label.

[Source: Autoblog]

Thursday, January 21, 2010

2011 Shelby GT350 Sports Car

2011 Shelby GT350 Sports Car

SCOTTSDALE – Jan. 18, 2010 – Shelby American, a wholly owned subsidiary of Carroll Shelby International Inc. (CSBI:PK), will fulfill the dreams of enthusiasts by returning the legendary Shelby GT350 to its lineup of American performance cars.
2011 Shelby GT350 Sports Car

The Shelby team unveiled a supercharged concept version of the Mustang-based 2011 Shelby GT350 to the surprise of thousands gathered at the Barrett-Jackson Auction Opening Night Gala to honor the 45th anniversary of the first GT350 and first Shelby big block Cobra.
2011 Shelby GT350 Sports Car

"The 2011 GT350 balances heritage with modern necessity," said Shelby American president Amy Boylan. "Former Hot Wheels and Ford designer Larry Wood joined Vince LaViolette, Walter Cardenas, Andrew Smidt and the rest of our Las Vegas team to help integrate 1965-1970 Shelby styling cues with modern aerodynamics. We worked with Ford Racing to supercharge the engine with a goal of 500 horsepower, as well as to sharpen the handling. Baer Brakes helped engineer the fantastic brakes and we shod the GT350 with 19" modern Cragar wheels and super sticky Goodyear tires. This Shelby is truly a complete performance package"
2011 Shelby GT350 Sports Car

Each Shelby GT350 will be clad in traditional white with Shelby Guardsman blue Le Mans stripes and feature the new Ford V8 coupled to a 6 speed manual transmission and center exit exhaust. Blue Shelby GT350 valve covers and billet caps set off the supercharged engine. The Baer brake system features 6 piston kit in the front, as well as 14″ ERADISPEED rotors in the rear with cooling ducts for all four corners.
2011 Shelby GT350 Sports Car

The suspension was upgraded with new Ford Racing springs, struts, sway bars and adjustable caster/camber plates. The 2011 Shelby GT350 also receives a new front fascia, tail light trim, front splitter, rear deck lid filler panel and rear fascia. Functional scoops are located on the side rockers and hood. GT350 badges on the outside and inside include a Shelby serial number. The A pillar carries a fuel pressure, oil pressure and boost gauge.
2011 Shelby GT350 Sports Car

The Shelby GT350 is a post title program; a customer purchases a car from their local Ford Dealer, which is turned into a GT350 by the Shelby American Team. A limited number will be built in the 2011 model year. The Shelby GT350 up-fit completed by Shelby American has a MSRP of $33,995 and does not include the price of the base car.
2011 Shelby GT350 Sports Car

Monday, January 18, 2010

Shelby unveils 2011 GT350 Mustang at Barrett-Jackson

2011 Shelby GT350

Coinciding with the 45th anniversary of the original 1965 Shelby GT350, Shelby American unveiled an all new GT350 Mustang at the opening night gala of the Barrett-Jackson auction in Scottsdale, AZ. Presented in concept form, the new GT350 features a supercharged version of the brand new 5.0-liter V8 engine in the 2011 Mustang as well as performance upgrades from Ford Racing, Borla, Cragar, Baer and more.

Unlike the GT500, the GT350 will be a post-title upgrade available from Shelby. Customers can have their 2011 Mustangs shipped directly to Shelby's Las Vegas facility to be converted or they can deliver the car themselves. Once in the hands of Shelby, each Mustang is fitted with a Ford Racing supercharger good for approximately 500 horsepower, a Ford Racing suspension system, Baer brakes front and rear, Borla exhaust system, Cragar wheels, and more. For the exterior, Shelby fits a new front fascia, front splitter, functional hood scoop tail light trim, rear deck lid filler panel and a rear fascia with center exhaust exit. White with Guardsman Blue racing stripes will be the only available color combination, which isn't such a bad thing.

Of course, all of that comes at a price. Shelby lists the GT350's MSRP at $33,995, which doesn't sound that bad until you realize it doesn't include the base car. With the 2011 Mustang GT coming in at just over $30,000, the total price of the GT350 will actually exceed that of the GT500. Does something similar to the Shelby GT built the last few years make more sense? Perhaps, but we're sure Shelby will find quite a few buyers anyway.

[Source: Shelby American]

Saturday, October 10, 2009

Shelby GT500KR Ford Mustang Sports Car (King of the Road)


Shelby GT500KR Ford Mustang Sports Car

King of the Road
The 2008 Ford Mustang Shelby GT500KR is a limited edition performance model limited to just 1000 units. The launch of the GT500KR at the 2007 New York International Auto Show was designed to coincide with the 40th anniversary of the original 1968 Shelby GT500KR.
The bulging vented hood, styled after the original, is secured by a pair of stainless steel, twist-down hood pins. The composite front valance houses a pair of chrome-trimmed, functional brake ducts to cool the large 14-inch, vented Brembo front brakes.
The Ford SVT-engineered 5.4-liter supercharged V-8 under the GT500KR's hood is treated to a Ford Racing Power Upgrade Pack that boosts horsepower to an estimated 540 and torque to 510 ft-lbs, thanks to revised ignition and throttle calibration and a cold air intake system that replaces the stock unit.
Shelby GT500KR Ford Mustang Sports Car

Power is delivered to the rear wheels of the GT500KR through a Tremec TR6060 six-speed manual transmission and 3.73:1 rear axle ratio, upgraded from the standard GT500's 3.31:1. Gear selection is courtesy of an all-new Ford Racing short-throw shifter making its debut on the KR. Topped with a white ball, the new shifter is 25 percent shorter than the unit on the GT500 providing for crisper, sharper shifts.
Ford SVT, Ford Racing and Team Shelby worked together to develop the GT500KR's suspension tuning. Based on initial work by Ford Racing and the team at Shelby, often at Shelby's own facility on the grounds of Las Vegas Motor Speedway, Ford SVT chassis engineers will apply fine tuning techniques to prepare it for the streets. The Shelby GT500KR will feature unique spring rates, dampers, stabilizer bars, and strut tower brace, all designed specifically for the KR, to deliver the precision handling package.

Saturday, October 3, 2009

Shelby Twin-Turbo V8 Engine Supercar Ultimate Aero

Shelby Twin-Turbo V8 Engine Supercar Ultimate Aero

Shelby Supercar engine in the base Aero model is same as the previous year, but the Ultimate Aero has a 6.35-litre (387.2 cu in) engine, rated at 1,183 bhp (882 kW) at 6950 rpm and 1,094 lb·ft (1,483 N·m) torque at 6150 rpm, and the supercharger is replaced by a twin turbocharger with cabin adjustable boost pressure. The car is designed to use 91-octane gasoline. The 6-speed transmission is readjusted to increase the theoretical top speed to 273.75 mph (437 km/h) at 7200 rpm, however whether the vehicle is able to reach this speed is highly questionable and has never been tested.
Twin-Turbo V8 Engine with 1183 hp, base price is $654,400. Tested in March 2007 by Guinness world records
Wheels on the base model are sized 18-inch at the front and 19-inch at the rear, while the Ultimate Aero TT has wheels an inch larger at each end.
The 2007 models are heavier, with the base model weighing 2,850 lb (1,290 kg), and Ultimate version 2,750 lb (1,250 kg). Unlike the previous year, base models have a navigation system, 10-speaker audio/CD/DVD system, video/DVD screen, back-up camera, air-conditioning, and trunk space as standard equipment. These come optional on the Ultimate.
The first production 2007 Ultimate Aero TT car was sold on eBay for US $431,100. Later cars are expected to cost US $654,000. Only 24 Ultimate Aero TT's are going to be produced from 2006-2007. The Ultimate Aero TT made its international debut on the International Show Circuit in November 2006, culminating with the world record top-speed competition held in Wolfsburg, Germany in May 2007.

Friday, July 18, 2008

Shelby Supercars promises breakthrough EV, delivers a lot of hyperbole

SSC Ultimate Aero EV

Shelby Supercars has just issued its second release this week about its miraculous new project, the Ultimate Aero EV. As we read the announcement, it was obvious that it was exactly the same release from just a few days ago and the hyperbole was in no way toned down. They are promising to deliver a working prototype by February of next year, followed by full production examples by the fourth quarter of 2009. That, in and of itself, is highly improbable, but it just gets better from there. The performance the company is promising is insanely impressive and about as likely to come to fruition as airborne swine or your fairy godmother.

SSC promises two, 500hp electric motors equipped with a triple disc clutch and a six-speed gearbox. As Tesla found out the hard way, making a gearbox last with an electric motor is tough, even with half as much power. But it gets better. SSC promises a power source with extended times between charges, perhaps as long as several years. We're still confused, but we don't think it's a coincidence that the company is making this announcement in the same week it announced its hopes of securing new venture funding.

Building a car powered by an internal combustion engine to go 250 mph is less of a big deal in this day and age. You just need an engine with enough power and a slippery shape. Building the kind of electric car that SSC is promising involves invalidating the most fundamental laws of physics. So for the time being, we remain comfortable skeptical.

Monday, May 19, 2008

$155k for 2008 Shelby GT500 KR

Shelby GT500 KR

Even if its limited to only 1746 units we are only talking about a Ford. But for this particular one its dealer asks $155k, even if Ford announced a MSRP of less than $80K!

It’s true it is powered by a V8 engine that delivers 540 hp, but for $72K you can buy a Nissan GT-R! And with all its improvements we are talking about a Mustang in here, so come on! And if you don’t like the Nissan GT-R, with $30,000 less, you can leave a Porsche dealership with a brand-new 911 GT3

Saturday, January 12, 2008

Shelby GT500KR goes into production

Shelby GT500KR

Automotive legend Carroll Shelby shares his 85th birthday with a new performance standout – the 540-horsepower 2008 GT500KR, which begins production today.

The GT500KR or “King of the Road” Mustang is the fourth limited-edition Mustang that Shelby Automobiles and Ford have brought to market since resuming their collaboration in 2001. It builds on the performance and success of the 500-horsepower Shelby GT500 – the most powerful production Mustang ever.

The new GT500KR will be available at select Ford dealerships this spring. Production is limited at 1,000 units.


It is simply magic when Shelby and Ford team up and deliver products like the GT500KR,” said Mark Fields, Ford’s president, The Americas. “Collaborations like this have helped Mustang remain at the top of the sports car segment for 22 straight years – and running – and help inspire people who truly want and value performance.”

Carroll Shelby, who was actively involved in the GT500KR’s development, said: “My energy and passion for performance products has always been strongest when I am working with Ford. I’m always looking to up the ante when it comes to performance, and bringing back the ‘King of the Road’ Mustang is just what we need.”


Delivering the “King of the Road”
Each Shelby GT500KR begins life as a GT500, built at AutoAlliance International Inc., in Flat Rock, Mich. From there, the cars are shipped to Shelby Automobile’s facility in Las Vegas, where a Ford Racing performance pack, exhaust system and short-throw shifter are installed. The GT500KR also is fitted with body, chassis and interior components. Every GT500KR will be hand customized and delivered to each customer in an enclosed transporter, just like the legendary Ford GT.



To fine-tune the GT500KR’s chassis – stiffened 50 percent to deliver increased body control – SVT engineers and Shelby put the GT500KR through a rigorous testing program developed specially for SVT products, including a 12-hour racetrack durability test. The result is a car with increased performance capability that is still comfortable to drive on the street.

The GT500KR’s aerodynamics were fine-tuned to add 50 pounds of downforce over the front axle and move the center of aero pressure forward in the vehicle to improve high-speed balance and downforce under high-speed braking. A new front splitter design works with the hood and revised rear spoiler to deliver these benefits. The bottom line: the GT500KR sets new performance standards for Mustang handling and straight-line performance on the racetrack, slalom course and skidpad.

“Because the Shelby GT500 strikes a great balance between ride and handling, we knew that the GT500KR had to be even better,” said Jamal Hameedi, chief engineer at Ford SVT. “We used a holistic approach, having chassis engineers work closely with the engine specialists to develop a tuning suspension that optimizes the engine enhancements.”

Added Gary Davis, vice president production for Shelby Automobiles: “We aren’t fixing our attention on one or two attributes, but working on the vehicle as a whole. The throttle response, power delivery, exhaust note and handling all work together to deliver a great total driving experience.”

To deliver that balance, the ride height has been lowered to the optimum setting for limit handling, which equates to a 20 mm ride height reduction in the front and 15 mm in the rear.

The Shelby GT500KR team sculpted a modern interpretation of the original’s bulging hood scoop, a visual indication of the extra horsepower packed beneath it. The hood is secured by a pair of stainless steel, twist-down hood pins.





To save weight, the hood borrows design elements from the ducted aluminum/carbon fiber clamshell on the Ford GT. Developed through intensive use of analytical tools including Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA), the design optimizes the structural properties of carbon fiber delivering panels at a wafer-thin 0.8 mm. The hood saves 15 pounds versus its aluminum counterpart in the GT500.

Unlike most traditional designs, the hood has three components: the outer panel, an integrated airflow duct which spans the entire hood and the inner panel. The duct serves three purposes: to channel supplemental fresh air into the new cold air intake, to relieve high-speed underhood pressure and to move air from the front intake and engine compartment to the rear extractors.

The Shelby GT500KR will ride on all-new Goodyear tires, which make their North American debut exclusively on this new Mustang. The Supercar F1 tire, made of a new performance compound, resulted from a special collaboration between SVT and Goodyear.





Each GT500KR model is identified by a special 40th Anniversary badge on the fenders and grille, distinctive body colored mirror caps and Shelby lettering stretching across the front of the hood and along the rear portion of the deck lid. a special Shelby VIN tag is affixed to each vehicle, mounted in the engine compartment.

The all-leather interior features Carroll Shelby signature embroidered headrests and an official Shelby CSM 40th Anniversary GT500KR dash plate mounted at the top of the center stack.

Other standard equipment includes HID headlamps, an interior ambient lighting package, wrapped and stitched instrument panel, center console and armrests, as well as an electrochromic rearview mirror. Optional equipment includes a Shaker 1000 audio system and DVD navigation system.


The GT500KR’s 5.4-liter V-8 Gets the Royal Treatment
Just like its namesake, the 1968 GT500KR, the 2008 “King of the Road” packs a walloping dose of Ford performance. The Ford SVT-engineered 5.4-liter supercharged V-8 is enhanced with a Ford Racing Power Upgrade Pack that boosts horsepower to an estimated 540-hp and torque to 510 ft.-lbs. The added power comes thanks to revised ignition and throttle calibration and a cold air intake system that replaces the stock unit. The Shelby GT500KR cold air intake seal was designed in unison with the new carbon fiber hood to prevent hot engine compartment air from reaching the air intake.



Calibration modifications include advancing the ignition timing as well as re-mapping the electronic throttle settings to provide quicker throttle response for better off-line and mid-range acceleration. Increased throttle response will be met with a sharper roar from the Ford Racing-inspired exhaust system.

Power is delivered to the rear wheels through a Tremec TR6060 six-speed manual transmission and 3.73:1 rear axle ratio, compared with the GT500’s 3.31:1.

To perform optimally on track and during performance driving, the Shelby GT500KR has been fitted with an elevated axle vent reservoir to prevent axle fluid expulsion. Gear selection is courtesy of an all-new Ford Racing short-throw shifter making its debut on the GT500KR. Topped with a white ball, the new shifter throws are 25 percent shorter than the unit on the GT500 providing for crisper, sharper shifts.