These numbers are going to vary GREATLY. People live in different parts of the country, which affects their times. Some people are better drivers than other. Track conditions are going to be different. All of these reasons are proof that you cannot compair what memberA ran to what memberB ran. The only way is to run the cars back to back on the same day by the same driver and then do analysis on the times.

Because these cars are so close performance wise, you cannot definitevely say that one is faster than the other. Its not like we are comparing a Z to a Viper, where it is very easy to say which one is faster. They are both relatively the same, so the driver is not going to notice a tenth of a second difference.

 

Great job of not answering the question. Stock to stock the weight difference is almost nothing considering we already know that some of the weight comes in the form of better brakes. REAL races are done from a dig?!?!?!?!?! No $hit?!?!?!?! You mean you floor it in first then stop, floor it in second, then stop, floor it in third and so on. You start from a dig and from that point on, you are between 5000-7000 rpms the rest of the way down the track or on the street.....the top. I am thoroughly convinced your don't know $hit other than what you read on these sites and that you have no real world experience with any of this. Like I said, provide info backing your claims or don't bother giving advice. Telling me to go look it up is not providing any info.

 

+1

Friends who have weighed their '06's at the track are getting comparable numbers to those who have 03's-'05's. At times, they don't match the listed weights at nissanusa.com (but I'm not sure if the track weights were true curb weights).

The only 0-60 tests I've seen performed on the 300hp engine were done by Road & Track (5.6 sec) and Car & Driver (5.8 sec) [both were 35th Anniv.], but none of them had the supposed "weight penalty" of the '06's, and those tests were obviously not done on convertibles (which the OP's friend was looking for).

I did read an unofficial test of the '06's online (can't remember if it was AutoWeek or Automobilemag.com), and I think their number was 5.5-5.6 for the Base model (so essentially comparable/unchanged). Peanuts, really.

 

In '05, ONLY the 35 Anniversary MT and the Track models had the rev-up engine.
None other.

 

I have a 03 5AT touring. It weighs 3360# without spare, 1.8 tank of gas, lighter 17" wheels and in race ready trim. I have minor mods, but I tear up 06's by quite a bit more than stock Z's of earlier years. Since I was in involved in the Z Car Garage Drag race Series at Infineon Raceway I have raced lots of Z's. the loss of torque seems to have made them slower in the 1/4. My Z stock had 247 RWT
and I have the dyno charts to prove it.

 

While that may be true, you haven't provided any info on the 06. The only thing you have proven is that your car in race trim is faster than the 06 and even then it doesn't matter unless the same person pilots both cars at the same track on the same day.

 

My car in race trim is heavier than the 06's for some reason and I have raced about 5 06's with different drivers......all 6MT's by the way and beat all of them by a minimum of 1.5 car lengths the worst by about 3 car lengths. I know one of the drivers is a good driver. (1.5 car lengths) can't say about the others. I know him he had no excuses. We all ran street tires. The loss of torque makes them slower in the 1/4 maybe if they race on the salt flats they can beat an earlier Z.

 

Did you pilot any of the 06s down the track yourself? Did any of the 06 guys take your car down the track? Did you alternate lanes? 1.5 car lengths at these trap speeds is right around 1/10th of a sec diff. You mean to tell me that you are willing to fully back the idea that the 10 lbs of torque diff is making or breaking the car? I respect your opinion and your experience but it is just way too close to say that one car is clearly faster than the other.

 

No haven't drivien an 06 yet. but maybe tonight. I'm beating them by more than 1/10 sec. I can beat them by that much with someone sitting next to me (another passenger).
I don't have time to continue this, but the bottomline is if I am racing them or they are just going for time they are slower than the other years becasue for some reason they don't have bottom end grunt. (must be the torque IMO)
Ask the question in the drag forums.

 

I'm not the one with the question. The OP should do that. Bottom end grunt only accounts for a very small part of the race. Most of the racing is done up top. Maybe if the guy launched his car at a higher rpm his torque would equal yours off the line. There are just too many variables for cars that are nearly identical to say one is the clear winner.

 

torque is king at a drag race. That's why everyone wants to know what your 60' time is.

 

5 year payment-wise, it's only $40 more per month for the '06 [For the full amount, less depending on your down payment, etc]

 

true but 10 ft/lbs of torque is not that big of a deal