Originally Posted by JoesC5

Sorry, but you are wrong on your "facts". The C6 was not designed to hit 60 MPH without shifting, except in the $80,000 Z06 and the 427 Convertible and the $125,000 ZR1.

The LS3 in the base coupe will redline at 56 MPH and the LS3 in the Grand Sport will redline at 50 MPH. On both versions of the C6, the only way you will see 60 MPH is in second gear.

But you will notice, the base C6 does 0-60(and shifting gears at 56 MPH) in 4.2 seconds, whereas the GS LS3 does 0-60(and shifting gears at 50 MPH) in 3.95 seconds. It's because of the lower gearing in the GS, not because it doesn't have to shift gears before hitting 60 MPH.

For the LS7 cars, its the 7000 RPM redline that allows them to hit 60 MPH in 3.7 seconds without shifting and the LS9 gets to 60 MPH in 3.4 seconds without shifting because of it's tall 2.29 first gear. But the LS9 does not need the shorter gearing found in the base C6 and GS because of it's outrageous torque from the PD supercharger.

Originally Posted by johnglenntwo

Your undercutting! The Z06s best 0-60MPH is 3.5s by C&D (without the 1/4 pass); the ZR1s best 0-60 was 3.3s by MT in 2009, but, the Viper now has the American record at 3.2s. NEXT!

Originally Posted by JoesC5

The figures I quoted were those supplied by GM. For comparison purposes, I prefer to use those, vs a rag, as I believe GM is better quipped, as they would be more likely to be testing different vehicles under the same conditions. GM does have it's own test track, it's own drivers, and it's own test equipment, thus is better able to duplicate testing conditions when testing different cars.

Originally Posted by JoesC5

The figures I quoted were those supplied by GM. For comparison purposes, I prefer to use those, vs a rag, as I believe GM is better quipped, as they would be more likely to be testing different vehicles under the same conditions. GM does have it's own test track, it's own drivers, and it's own test equipment, thus is better able to duplicate testing conditions when testing different cars.