Gregariousgreg wrote:Don't they make a 5-speed and a 6-speed 350z?
Yes they do. The auto is a 5 speed. The manual is a 6 speed. But all of the 350Z autos are 5 speed and all of the manuals are 6 speed.
As far as a stock Z versus a Stock SR powered 240, lets do a comparison.
The heaviest Auto transmission 350Z is 3239 lbs. Add a 150 lb driver and you have 3389 lbs. Now for arguments sake, lets take a S15. 2799 lbs, and with driver, 2949lbs. The Z will have a 11.81 power to weight ratio with it's 287 HP. The S15 will have a 11.84 power to weight ratio. Being that the Z has an auto transmission, perhaps it might transmit less power to the ground. Oh, but wait. The S15 makes almost 50 more HP than most other SR's. Put that into perspective along with the fact that the power to weight ratio is probably one of the easiest ways to determine how fast a car can accelerate and you have your answer. Another thing to keep in mind is that the more power you have, the less difference there is in speed between a manual and auto. As long as they don't slip.