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The Information Source for Corvettes

C1 - 1953 to 1962
C2 - 1963 to 1967
C3 - 1968 to 1982
C4 - 1984 to 1996
C5 - 1997 to 2004
C6 - 2005 to 2013
ZR1 - The All-New 2009 Corvette ZR1
* Detroit Auto Show Images
* Added 1-16-08
C7 - the Future Corvette

The Corvette
Black Book

C7 Reveal
Engine - The New LT1 Engine
Exterior - A New Look for a New Generation
Interior - Finally World Class
Chassis -An Aluminum Masterpiece
Driveline - The Electric Vette!

Drivetrain - The Electric Vette

While the engine and instrument panel get the most gloss in terms of visible technology, it's under the skin where the real technology is. The Corvette Stingray is without question, the most technologically advanced than any of the other successors of previous generations.

The heart of the technology tour de force has to the Driver Mode Selector. With a turn of this console mounted dial, Corvette drivers can litterally re-tune the car. There are five modes, and each mode influences 12 parameters of vehicle performance and control. The five modes are as follows:

  • Weather
  • Eco
  • Tour
  • Sport
  • Track
    The Track mode is certainly the most aggressive, so much so that Chevrolet warns owners to not use the Track mode for street driving as the vehicle calibrations are such that with the less than ideal traction or grip of most streets may result in far too lenient traction and stability control parameters.

    As for the 12 vehicle parameters that adjust the cars performance, they are:

  • Electronic Throttle Control (ETC) - Increases the responsiveness of throttle application.
  • Steering - The amount assist is varied based on mode.
  • Performance Traction Managment - Five additional modes to limit braking intervention and torque reduction - Works in Sport and Track modes.
  • Traction Control - In Weather mode the traction control and torque modulation is optimized for inclement weather.
  • Gauge Cluster Configuration - The most visible of the parameters adjusted with the modes selector, the 8-inch color screen ahead of the driver displays typical vehicle data such as trip, navigation, and fuel ecomomy. When the mode is dialed to Sport, a cleann easy to read disply of traditional gauges fill the screen. The graphic tachometer, lifted from the C6-R display, fills the screen when in track mode.
  • Launch Control - The powertrain managemnt controls power output for maximum acceleration for both automatic and manual transmissions.
  • Active Fuel Management - In Eco mode, the 6.2L LT1 engine will remain in four cylinder mode until more power is called upon.
  • Active Handling - When in Sport?Track modes, a "competitive" setting which allows the driver to choose to completely disable the Active Handling.
  • Manual Mode for Automatic Transmission - Adjusts shift quality and transmission shift points.
  • Active Exhaust System - When equipped, the active exhaust will change the audiable emissions depending on the mode selected.
  • Magnetic Ride Control - Corvettes equipped with MRC with have the shocks tuned for comfort or sports driving.
  • Electronic Limited Slip Differential - Most aggressive tuning when in Sport and Track modes, the ELSD, included with the Z51 package, waries the rate at which the amount of differental slip is allowed, finding the right balance between steering response and stability depending on the current driving conditions.

    "Active Rev Matching" is destined to make all drivers look like pros when negotiating the Sringray's seven speed Tremec manual transmission. The system uses sensors to indicate the intended course of the shift lever, whether it be going up thru the gears, or going down and match the engine revs, reducing driveline shock. The system will "blip" the throttle, much in the manner seasoned manual transmission drivers have done over the ages, but you don't have to have three feet to do it. When "heel and toeing" a driver will aply the brakes, blip the throttle, and depress the clutch to facilitate the shift; all ath the same time.

    Speaking of manual transmissions, the Tremec 6-speed rear mounted manual transmission used since 1997 has been replaced by a Tremec model TR6070 manual, now with seven foirward speeds. The transmission retains the traditional H-pattern and has blockers which will keep the driver from engaging the incorrect gear for the direction of vehicle travel. The clutch is a dual disc design for ease of operation and high clamping force. As for the other available transmission, last year's 6-speed automatic carries on, with refinements and upgrades to handle the upgrades in engine and vehicle performance.

    Attached to the gearbox is the differential and when equipped with the Z51 Performance package, the machanical limited slip portion moves from inside the carrier to a pair or electronicly controlled units mounted on the sides, A pair of housing mounted splined discs which carry the differential output shaft and the axle shafts, are connected by electronically controlled wet discs. The purpose of the Electronic Limited Slip Differntial (eLSD) is to allow precise control of slippage to match with the tires available grip and the vehicles intended path. By varying hydraulic pressure against the clutches, the C7 is capable of higher and tighter entry and exit speeds wheen cornering, as well as aiding in optimum traction in inclement weather conditions. The differential lube is shared with the eLSD whose dedicated cooler receives cooling air from the right rear fender air intake.

    Corvette tries to make all drivers equal by once again featuring Performance Traction Management as part of the electronics suite. When enabled, PTM uses the traction control systems to allow drivers to put down the maximum amount of power consistent with the amount of traction available. Basically, when a driver exits a corner, they put their foot to the floor and PTM will modulate the throttle to shoot the car out of the corner, powering the car at the threshold of grip.

    The exhaust system has not gone unenhanced in the new car. Four tailpipes have been a trademark since the 1997 model and they are bigger and more tightly grouped than in years past. The now have their own home, living in an enclosure in the rear bumper fascia. The pipes that lead to the mufflers are now 2.75 inches, allowing for 13-percent greater airflow than the 2.5 inch pipes of the C6. The optional dual mode exhaust carries 27-percent more air than last year. The exhaust also incorporates butterfly valves to enhance the sound when the engine operates in the economical V-4 mode.

  • C1 - 1953 to 1962
    C2 - 1963 to 1967
    C3 - 1968 to 1982
    C4 - 1984 to 1996
    C5 - 1997 to 2004
    C6 - 2005 to 2013
    C7 - The Future Corvette - 2014 to ?

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