Callaway Corvette Dyno GraphIf you under promise and over deliver, you can never disappoint people, and apparently the tuning mavens at Callaway know that lesson well. When the company announced its latest tuned Corvette a few months ago, it said that it would have roughly 620 horsepower and at least 600 pound-feet of torque. That would have been impressive gains over the stock 'Vette by itself, but the new supercharged sports car has actually been rated at 627 hp and 610 lb-ft as its final specs. Job well done.

The key to the latest Callaway Corvette is its 6.2-liter supercharged V8 that gets a redesigned, patent-pending supercharger with a new intake manifold and an intercooler with three liquid-to-air cooling elements. The supercharger housing also protrudes through the hood to aid cooling even more.

According to the dyno (right), Callaway's Corvette reaches its peak 627 hp at 6,400 rpm, an additional 167 hp over the standard car and 23 hp less than the upcoming Z06. The Callaway's max 610 lb-ft comes on about the same time as the stock 'Vette at around 4,400 rpm. However, the supercharged engine has an impressive 145 lb-ft more than normal, but 40 lb-ft less than the Z06. The tuning company claims that it uses the same SAE-certified power correction method as Chevrolet to calculate the specs.

With the numbers official, the latest Callaway Corvette is now in production, and the company is already shipping them out to waiting customers. Prices start at $22,995, plus the cost of the donor car. Scroll down to read the full press release about the tuner's latest supercharged creation.
Show full PR text
2014 CALLAWAY CORVETTE HP, TORQUE UPDATE: 627 bhp, 610 lb-ft

Callaway engineers have finalized Callaway Corvette powertrain management system calibration, following comprehensive vehicle testing and validation. Based on dynamometer testing with production-level components and calibration, the 2014 Callaway Corvette has been rated at 627 horsepower at 6400 RPM, a 167 hp increase over the stock Corvette baseline. Peak torque is rated at 610 lb-ft at 4400 RPM, 145 lb-ft greater than the stock LT1's output.

Callaway uses SAE certified power correction to compute horsepower and torque for its cars and trucks, employing the same method that Chevrolet and other vehicle manufacturers use. Using standard corrected computation for power and torque, as many aftermarket manufacturers use, the Callaway Corvette SC627 would be rated at 657 hp and 639 lb-ft of torque.

The graph shown below illustrates the power increase produced by Callaway's unique, new-for-2014 supercharger design (pat. pend.) and single acoustic chamber exhaust system. Note that horsepower increases consistently from idle to maximum engine speed, and avoids peaking at 6000 RPM. Note the broad torque curve, with output exceeding 500 lb-ft (SAE) at only 2200 RPM.

The supercharger system includes Callaway's new intake manifold design, its new intercooler design, and a 2300cc high helix angle, four-lobe rotor pack. Callaway developed the new long-runner manifold to increase mid-range torque, producing 57 lb-ft (SAE) more than last year's Callaway Corvette. The engineers also devised a new intercooler system with three discrete liquid-to-air cooling elements, providing unequalled inlet air cooling efficiency. Plus, by extending the supercharger housing through the hood, convective heat transfer yields additional reduction of inlet air temperature. Reducing inlet air temperature provides more oxygen molecules for a given volume of air, increasing power while helping to prevent engine-damaging detonation. However, supercharging inherently increases air temperature as it increases air pressure. Unchecked, this can result in negating the supercharger's positive effects. Callaway's new intercooler configuration practically eliminates this temperature increase, as proven repeatedly during product development testing on the dyno and at the race track.

NEW CALLAWAY CORVETTES IN PRODUCTION

As you can see in the photo below, Callaway technicians haven't wasted any time. Now that calibration development is completed, Callaway Corvette SC627 production has commenced. Production cars have already begun shipping from Callaway's Old Lyme Connecticut and Santa Ana California facilities.

Callaway Cars Incorporated is an automotive engineering and manufacturing corporation specializing in high performance applications. Founded in 1976, the corporation's four core business units include Callaway Cars, Callaway Carbon, Callaway Engineering and Callaway Competition with facilities in California, Connecticut and Germany. The organization produces specialty vehicles, engineering services, and performance products that showcase technological sophistication, artistry in design, and beauty in craftsmanship.

CALLAWAY CARS INCORPORATED
SANTA ANA CALIFORNIA • LEINGARTEN GERMANY • OLD LYME CONNECTICUT
callawaycars.com


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    • 1 Second Ago
  • 36 Comments
      404 not found
      • 5 Months Ago
      I'll wait for the Z06, thanks.
        icemilkcoffee
        • 5 Months Ago
        @404 not found
        Yeah. This one seems kind of redundant, because the Z06 will deliver more or less the same level of performance, also with a supercharger.
      Jaybird248
      • 5 Months Ago
      Calloway needs to make more visual changes than just sticking the supercharger through the hood and adding some labels. If I've got a Calloway Corvette, I want folks to KNOW it.
      Daekwan
      • 5 Months Ago
      Nice option, because it includes the factory 5yr/100k warranty. But unless you need a 600+hp Corvette now.. I cant imagine anybody is in a rush to buy an $80,000 Callaway C7 with 627hp.. when in a few months you will be able to buy an $80,000 C7Z06 with 650hp. The main reason to go Callaway supercharged in previous generations, was to have the option to keep the automatic transmission and/or get the convertible. Now that new Z06 will be available with both an auto & vert.. there's even less reason to spend the extra money on the Callaway.
      Revis Goodworth
      • 5 Months Ago
      It is a shame the Shamvette is such a worthless product - to think that the Hellcat over at Tony Motors is superior in performance than this cheap looking Chinese ripoff of other people's work. Perhaps no company has done more with less than Tony Motors.
        Lab Rat
        • 5 Months Ago
        @Revis Goodworth
        The Corvette also weighs Somewhere between 1000 and 1200lb less than the HellPig
        cfphelps
        • 5 Months Ago
        @Revis Goodworth
        Only superior performance if the only performance metric you are looking at is HP. The Hellcat is likely to be 4300-4500 lbs, and actually has tires that are skinnier than a Z51 C7 to put all that power through. Sure the Hellcat should be faster than a base C7 in a straight line, and it damn well better be, but any other performance metric goes to the Stingray. They are different cars for a different purpose.
        Thipps
        • 5 Months Ago
        @Revis Goodworth
        Cool story bro... But Im going to take my Hellcat to Billy Bob motors, they have far better tuning capabilities
        icemilkcoffee
        • 5 Months Ago
        @Revis Goodworth
        "Chinese ripoff'? What on earth are you talking about?
      AcidTonic
      • 5 Months Ago
      http://www.maperformance.com/hosted/ef4-25.jpg Or you could just buy an $1899 dollar turbocharger and a $5000 dollar shortblock and make nearly the same power from a 4 cylinder. 600 horsepower at the wheels and 500ft/lbs at the wheels yet it has AWD to actually use the power. I'd wait around for a turbo kit for the Vette if they want $22K for a supercharger.
        Nick B
        • 5 Months Ago
        @AcidTonic
        Right because im sure that Evo would be just as driveable and reliable as this. $5000 shortblock + $2000 turbo= Stock CV shafts, differential and transmission go bye bye. And dont tell me they wont because the Evo trannies can barely handle stock power. Also, gotta love that 185 lb/ft at 2500RPM.
          AcidTonic
          • 5 Months Ago
          @Nick B
          Anyone who is going to race will not start from 2500rpm. That's the fuel economy zone. Any race will be started from 5000rpm. Don't forget how much traction there is with 245 tread width times 4 tires. 980 tread worth of driven wheels on factory 245 tires. Vette would need 490 tread with tires which not even tubbed out drag cars use tires that wide. Also the stock X transmission easily holds 500+. The previous gens prior to 08 had the weaker stock transmission.
        Lab Rat
        • 5 Months Ago
        @AcidTonic
        Lingenfelter prefers turbocharging. Let's see what they do.
        cfphelps
        • 5 Months Ago
        @AcidTonic
        LMR and other shops have already pushed the LT1 over 1000rwhp. A&A and ECS offer centri kits for the C7 for the ~6k range that are in the ~600rwhp area with lowest boost settings. The point of the Callaway isn't value HP, it's an OEM-like quality experience that comes w/ a warranty. That said, I don't disagree that 22k for that seems steep.
      m3laszlo
      • 5 Months Ago
      increase the output by 73HP (equivalent to a Mitsubishi Mirage's engine) and you are only just matching a factory stock Hellcat's 700HP!!
        Lab Rat
        • 5 Months Ago
        @m3laszlo
        This car also weighs 1200lb less.
          adam.st
          • 5 Months Ago
          @Lab Rat
          C7s are not that light. A base C7 is about 3300lbs. The Z51s (the only one worth getting) is in the 3400+lb range. MT tested theirs at 3444lbs. Add a blower to a Z51 car and it surely above 3500lbs.
          Lab Rat
          • 5 Months Ago
          @Lab Rat
          1000lb... sorry (3175 vs 4250)
          cfphelps
          • 5 Months Ago
          @Lab Rat
          @adam.st while true, the 3444 number you're quoting was also the fully optioned car that will add weight. We don't know the official weight of the Hellcat, but the SRT was ~4250 and adding a blower and stronger components to handle the massive HP bump to 707 is very likely to add 100 to 200 lbs when it's all said and done, putting it right around 4300-4400. So that's a legitimate 8-900 lbs more than a C7 that those horses have to carry. And straight line is the only metric where the Hellcat is even in the same zip code...
      Jai
      • 5 Months Ago
      Plastic car with a cheap truck engine for those who like fast cars but cannot afford a real sports car with a high revving, responsive and sporty engine. I don't hate Corvettes though. It gives a new life to all the recycled plastic bottles that it's made out of.
      Joe Flatley
      • 5 Months Ago
      I would love to drive the car for a weekend! but the plastic engine cover showing through the hood is kind of funny if you know what I mean.
        Jai
        • 5 Months Ago
        @Joe Flatley
        The whole car is plastic. What difference does an engine cover make?
        cfphelps
        • 5 Months Ago
        @Joe Flatley
        That's part of the supercharger housing, and is therefore not plastic.
      TedW
      • 5 Months Ago
      im happy doing the quarter in 10 sec with my 6 cyl modified 27 yr old buick gn
        graphikzking
        • 5 Months Ago
        @TedW
        loved the GN and almost bought one a few years ago but I couldn't believe how terrible the interior was. I know it's old and can't expect modern amenities but my goodness it was hideous. On top of that it was just a boat when driving around turns. I instead opted for a gently used mr2 spyder. I can't ever imagine having nearly as much fun in the GN as I do with autocross and tracking the spyder. The GN would legally provide me 50 seconds a week of enjoyment maximum (5 runs at the track - that's a lucky night because most of the time you can only get 3-4 because someone always blows a rod or something and spills oil or crashes etc). When I track the mr2 or autocross I get a little more time (10-30 minutes) When I want to hit the 1/4 mile I have an old GSXR600 (1999) that I'd strap the front down and run high 10's every time. For a few 100 I could extend the swingarm and easily be in the 9's :) but I have fun just making my current runs quicker even by 100's of a second. Anyone can bore it, lower it, extend the swingarm and go faster, but it's a true racer that maximizes their abilities.
      Matt Mossberg
      • 5 Months Ago
      Callaway made the c6 and c5 vette look much different then stock both on the exterior and the interior. I was thinking they would do the same with the c7. I think this will be a good option for people who already have a stingray or people who want to have a fairly exclusive corvette.
      Sergey R
      • 5 Months Ago
      What does it mean "plus a cost of a donor car"? Is it enough to have just one C7 and order that supercharger or not? o_O BTW can they install it too or they only ship that supercharger to customers?
        cfphelps
        • 5 Months Ago
        @Sergey R
        I think they sell these as completed cars. You buy one from Chevrolet, it gets shipped directly to Callaway, and they do their install, you retain your factory warranty and or get a supplemental one from Callaway for the powertrain modifications, and they deliver the finished product to the customer.
      Jai
      • 5 Months Ago
      If the Chinese made the exact same car with the exact same performance, everyone on Autoblog and the world in general would be hating on it for ripping off the F12 and GTR and sticking a cheaper truck motor in it.
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