Here is the problem with this. Because the ZR1 is supercharged and the calibration code is more easily altered ( the calibrations of the Gen IV Viper and the 392 CI SRT8 engines are locked down. I believe the same will be true for the Gen V engine.), the ZR1 is easily and inexpensively modded to produce quite a bit more HP. For instance, the following kit for the ZR1 goes for $429.95 plus cost of installation. And this is without any engine internal upgrade. So until a Mopar controller and some headers come out for the Gen V, a ZR1 with this simple upgrade kit installed may not have a problem beating a stock Gen V Viper at the strip - particularly with its sit and squat suspension capability. Also keep in mind that the peak torque of the stock ZR1 comes in at 3800 RPM. The peak torque of the Gen V Viper per the SRT web site comes in at 4950 RPM so it is not a forgone conclusion that a Gen V will beat a ZR1 in a real drag race with two experienced drivers until we see the results of some real testing and not just hearsay statements. Don't underestimate the importance of torque and where it appears on the curve to a drag race. ( Iam no Corvette fan but the ZR1 is a formidable car and I have seen it run both in the quarter and in the standing mile. It is impressive.)
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"The Lingenfelter supercharger pulley upgrade kit is designed to enhance the ZR1 LS9 Corvette supercharged engine. This upgrade kit produces excellent horsepower and torque improvements over the factory 638 horsepower and 604 lbs ft of torque while maintaining a safe level of boost and supercharger RPM. Testing at Lingenfelter has shown 680 BHP and 660 lbs ft of torque with the Lingenfelter pulley upgrade kit installed. Installation of the kit does not require ECM programming or serpentine belt changes and will overdrive the supercharger 19% to raise boost on a stock engine 3-4 psi.
Parts included in kit:
- 2.60 inch diameter steel supercharger drive pulley powder coated black - 11 rib
- 100 mm aluminum double bearing idler assembly
- Lingenfelter LS9 solid supercharger isolator coupling
- Installation kit with everything you need to do the installation
Note: This pulley requires advanced installation techniques including removal of factory supercharger, pressing off old pulley, and pressing/pining new pulley onto shaft. "
I cannot give you specific numbers, because I gave my word, but the Gen V should have acceleration numbers superior to the best times ever recorded for the ZR1 by an American car magazine. The reason I say “should” is because of the inherent bias of some of our automotive journalists when it comes to our cars. I'm qualifying the post as .50 because I don't have skid pad, braking and track numbers. Anyway, it looks like the Gen V clearly out performs the previous model.