Originally Posted by LT1xL82
I suspect of they will have a Z06 & ZR1 and the Z06 will have a supercharged 6.2L and the ZR1 will have a twin turbo 6.2L.
Would the difference between those two motors be enough to differentiate the two models?
Using both means of forced induction, you could certainly create two motors with entirely different characteristics. The supercharger vs turbo debate rages on, but new factors such as variable cam timing change the game even further.
The fact is, superchargers take power to make power vs turbos use essentially what is waste energy (exhaust). The favortism with superchargers has always been low-mid rpm torque, but with variable cam timing and ever advancing turbo technology, this is becoming less true. In addition, turbos are far more efficient, and can be intercooled more easily (vs roots style blower).
If you look at the c6 zr1 vs c6 z06 at nurburgring, the difference, despite 100+ hp advantage is almost moot. Direct from Mero's mouth, its because the zr1 has an over abundance of torque. There comes a point where exit speed suffers too much because it cant get that torque to the ground.
It was the same situation with cars I built. We built an LS7 Factory Five GTM and an LS2 FF GTM and the LS2 car was faster at three of the four tracks we tested at. I just couldnt get the LS7 car out of the corner so
I was using the power advantage to catch the other between turns.
With the new zr1 being turbo'd you can utilize that variable timing to spool the turbo's earlier but get adequate torque in the lower rpms, then use a nicely sized set of twins to make a high hp figure, while intercooling the hell out of them. I called turbo a year ago and I am not happy the z06 likely wont be n/a...but inevitably, N/A is costly and forced induction aint. The hp/dollar factor rules.