i understand what you are saying and you have good points, but you mentioned VTEC... well nissan has the CVTC or whatever is called on these cars, and yours has it on both cam sides and i'm assuming you have a 35th aniv. (nice color choice btw, i originally wanted yellow ). but isn't it possible that the amount of timing advance the CVTC has in the higher rpms can be increased via control of the ecu? that alone could easily free up a few ponies. while i don't have proof of "my car has more power" i've still seen what it can do vs other Z's. maybe its because i never race with a passenger, i always have less than a 1/4 of a tank, i can shift well, etc etc. who knows. wackier things have happened on the street. i wish i had my time slip from Ennis to post up here, but i've heard people say that stock Z's can't break into the 13's. i ran a 13.7 @ 106mph with a 2.1 60ft time. i've told that to people i've met at meets a few of em have called BS. i wish i had proof but i'll get some. gatti-man, i never ment to insult your intelligence or knowledge of cars so i apoligize if that post came off a little negative.

 

35th aniversary Z is like 200 lbs more than an enthusiast so of course you had 1-2 carlengths

who knows if those other Z's had stereos or whatever

 

A dynojet measures hp with the wheels attached. Therefore, a larger, heavier rim will cause more rotational mass, robbing horsepower. Why do you think people who race want smaller, wider, lighteweight rims? Better acceleration and handling. Overall, you could probably lose 5-10 whp just from large, heavy rims.

A dynopack measures HP at the hub (takes the wheels off) so that possible loss in power isn't measured in to the final number.