beat on that Z until it does what it is supposed to! if not... itll learn when its time to replace the tranny. I have been able to put down a 1.67 60ft due to the instruction from Mark (SirpriZ), and the rest of the specialty Z crew. i have been modulating the rpms and dump the clutch as the rpms are on the way up in order to get some boost going early. I have been launching at 6800-6900 rpms... and that 60ft time was on bfg drag radials. but with better tires it makes it easier. just remember: launch hard, use low tire pressure (12-16) And being nice to the Z isnt going to make it go any faster.