The more powerful of the two comes from Callaway Cars, which has added a larger supercharger, a triple-action intercooler, and more to increase output to a massive 757 horsepower and 777 pound-feet of torque. The result, according to Callaway, is a 0-60 time quoted at 2.8 seconds and a quarter-mile run in 10.5. The package also includes a reshaped hood, all manner of trim upgrades, and a three-year warranty, and will set you back nearly $17k on top of the cost of donor vehicle that currently lists for $79,000.
In what could only come second relative to Callaway's kit, Lingenfelter Performance Engineering has also released a Stage 1 package for the Z06. The kit includes a new dry sump damper, upgraded supercharger pulley and drive belt, and more – all of which Lingenfelter says will boost the Vette's output up to 720 hp and 730 lb-ft. Revised performance figures weren't released, but despite the 37-horse, 47 lb-ft deficit, we doubt it'd trail Callaway's by much. But both would likely leave the stock Z06 in their dust, and you can read more about them in the press releases below.
- 757 bhp / 777 lb-ft
- Z06-based Corvette upgrade boasts 32% larger supercharger, triple intercoolers, and consistent power - lap after lap
The Numbers - Callaway Cars today announced power numbers and performance for the flagship model in their performance car lineup. Equipped with Callaway's GenThree Supercharger, the Corvette Z06 now produces 757 bhp @ 6,200 rpm and 777 lb-ft @ 4,500 rpm (SAE). A launch to 60 mph is now achieved in 2.8 seconds, and a quarter-mile in 10.5 seconds at 131 mph.
Why Go Big, When You Can Go Bigger? - Size Matters. To reach that power (which is up from 650 bhp / 650 lb-ft) the supercharger itself needed to be bigger since the output of a positive displacement supercharger is proportionate to its size. The Callaway GenThree supercharger is 32% larger in displacement (2300cc vs 1740cc).
Cooling - Callaway engineers recognize that a key contributor to maximizing power is reduction of inlet air temperature associated with forced induction. Callaway's unique triple-element intercooler configuration provides significantly lower and well-managed inlet charge air temperatures than single or smaller dual-element designs. The supercharger housing extends through the hood, thereby exposing it to outside ambient airflow and adding an element of convective cooling. The supercharger is visible without opening the hood, and heat is inherently extracted from the engine compartment.
Bold Packaging - The supercharger assembly is no longer cramped below the hood line. The completely redesigned manifold helps maintain consistent charge air temperatures with exceptionally low restriction and even airflow distribution to all cylinders, which results in a broad torque band producing over 500 lb-ft from 2,000 to 6,400 rpm. This translates to more consistent power delivery in severe-duty driving environments, a compromise typically observed with "underhood" approaches. A 10-rib drive pulley system was also integrated to prevent belt-slippage.
Patents - The technical features of the Callaway GenThree supercharger are significant enough that utility and design aspects of the system have been awarded patent pending status through the US Patent and Trademark Office.
Competence - 35 years of experience, compliance and warranty. All Callaway cars are assembled to precise engineering specifications by expert technicians at Callaway facilities, exclusively. Callaway provides the most comprehensive standard warranty among all specialty manufacturers. All Callaway cars are also fully emission-compliant. Additionally, there is an optional 5 year/60,000 mile Extended Powertrain Service Contract on all 2016 models.
CALLAWAY CORVETTE Z06 STANDARD EQUIPMENT INCLUDES:
- Callaway GenThree Supercharger (pat. pend.) with Triple-Element Intercooler System
- Callaway Supercharger Hood Surround
- Callaway Carbon Fiber Engine Mid-Covers
- Callaway High Flow Air Intake System
- Callaway Embroidered Floor Mats
- Callaway Anodized Aluminum Door Sill Panels
- Callaway Exterior and Interior Badging
- Callaway Underhood Build Plaque with Vehicle Identification Number
- Callaway Key Fobs
- Callaway Authenticity Documentation Package
- Callaway 3 Year, 36,000 Mile Limited Warranty
Callaway's standard 3 Year/36,000 Mile Limited Warranty overlaps the factory GM warranties, and ensures that Callaway Corvettes are not blocked for service by GM dealerships nationwide. Optional equipment for 2016 includes a 5 Year/60,000 Mile Powertrain Service Contract, ShortThrow Shifter, Callaway Sport Exhaust with Double-D Tips, Embroidered Car Cover, and National Corvette Museum Delivery.
All Callaway Corvettes are prepared to Callaway engineering specifications by expert craftsmen in Callaway's Connecticut and California factories. Callaway Corvettes are sold and serviced by Chevrolet dealerships across North America that are members of Callaway's Authorized Dealer Network. Callaway staff also works with prospective buyers who are not located near Callaway Authorized Dealers to facilitate delivery, maintenance, and warranty service.
The Callaway Corvette Z06 Package price: $16,995.00 with vehicles now in production.
LINGENFELTER PERFORMANCE ENGINEERING OFFERS 720 HORSEPOWER STAGE 1 PERFORMANCE PACKAGE FOR 2015 C7 Z06 CORVETTES
BRIGHTON, Mich. - Corvette owners who crave more performance and power from their C7 Z06 LT-4 engine, and an even greater adrenaline rush when behind the wheel, can satisfy their need for increased power with a new Stage 1 engine package from Lingenfelter Performance Engineering.
Lingenfelter's C7 Z06 engine package ups the LT-4's horsepower and torque without sacrificing drivability, while providing improvements in both throttle response and acceleration. Created with Lingenfelter's signature attention to precise detail and quality, the 6.2L engine package increases the amount of boost the LT-4's 1.7L supercharger makes, raising horsepower from 650 stock to 720 horsepower, with an increase of peak torque to 730 lbs. ft.
The kit includes: Lingenfelter LT1/LT4 dry sump damper, Lingenfelter 9.2-inch 15 percent overdrive supercharger drive pulley, supercharger drive belt, 100mm idler pulley kit, high flow air filter, 170-degree performance thermostat, GM crankshaft bolt, handheld programmer with Lingenfelter-designed tune for the LT-4 power package, professional installation by Lingenfelter-trained technicians as well as chassis dyno testing before/after installation with dyno graphs and video documenting the performance gains on USB drive. Special Lingenfelter branding, comprised of chrome fender badges, interior badge and personalized stainless engine badge, is added, along with Lingenfelter's official certificate of authenticity. The package is backed by a one year/12,000 mile warranty on the added components.
The Lingenfelter Stage 1 LT-4 kit boosts horsepower and torque across the entire power band, which translates into a noticeable difference in acceleration. Throttle response is also greatly improved, with the LT-4 now responding instantly to pedal input. The result is a Z06 Corvette that feels more like a race car on a road course, yet with the manners and temperament of a car that can easily be driven comfortably daily on the street.