Motor Trend comparison test..........

[alan64]

Originally Posted by VintageBMW

agreed and oh yea - what about a Viper, what a fast piece of _______

a friend of mine here owned a chrysler dealership and he took out one the vipers they had, and wrapped it around a pole and was killed instantly. At least the zr1 has a number of electronic nanny aids to keep you relatively safe.

[dcs2k]

4.3 in a stock s35i? Sorry But I dun think thats possible.

Using a race logic performance box, I did multiple runs on my s35i. Even with a JB3 tune on race map settings, 4.3sec was not attained. Friend's 08 Stock GTR strapped to the same setup did close to manufacter specs of 3.8sec.

Im not going to stick my head out and tell the world my car does a 0-60 in 4.3 sec stock, when even if with a tune the gtr is close to 2 cars ahead before i see 60 on my speedo..

[alan64]

my z06 did 0-60 in 3.7 sec. my 35i feels at least a second slower if not a little more. Im thinking its more like 0-60 in around 5 seconds.

[Alext]

I think traction becomes a big issue with the JB3 on a high map + the stock runflats. Need some r-compounds + extra width on the rear. This is how I solved 75% of my traction issues with a turbocharged miata!!

[BlueZ4AZ]

Originally Posted by sg-e89

4.3 in a stock s35i? Sorry But I dun think thats possible.

Using a race logic performance box, I did multiple runs on my s35i. Even with a JB3 tune on race map settings, 4.3sec was not attained. Friend's 08 Stock GTR strapped to the same setup did close to manufacter specs of 3.8sec.

Im not going to stick my head out and tell the world my car does a 0-60 in 4.3 sec stock, when even if with a tune the gtr is close to 2 cars ahead before i see 60 on my speedo..

Do you have a 6 speed or the DCT?

It's not even a question of IF the Z4 with DCT ran a 4.3. M/T already proved it. It's a matter of HOW.

Perhaps the conditions (temperature, humidity, etc) you ran in were such that no matter what you did, you were never going to hit the same 4.3 M/T got, because THEY did it in perfect conditions. Just a thought.

Is 3.8 seconds the bar? In other words, if your car doesn't run a 3.8 then you don't get to tell the world about it? If under 3.8, then you have something to hollar to the world about? ...and why 3.8? Why not save it for only those folks whose car hits a 3.4, like a ZR1?

[BlueZ4AZ]

Originally Posted by alan64

my z06 did 0-60 in 3.7 sec. my 35i feels at least a second slower if not a little more. Im thinking its more like 0-60 in around 5 seconds.

My 2007 Corvette w/ Z51 felt a little faster 0-60 than my Z4 35i, but not much,...maybe .3 - .5 slower.....and the Corvette did 4.1.
I tend to believe the M/T figure of 4.3 was done in absolute perfect conditions and variables. Achievable, but not something that will be consistent. So, a consistent 4.5 - 4.6 for the Z4 would seem reasonable. That would also put it just under a second slower than the Z06.

We'll never know for sure what the consistent runs for the Z4 (with and without DCT) will be unless some people start taking the car to the drag strip, and it's snot a drag strip car, so we may never know.

60 - 100 mph, seemed like a totally different story, as there is no comparison between the C6 and the Z4. The extra 100HP in the C6 takes over.

[dcs2k]

Originally Posted by BlueZ4AZ

Do you have a 6 speed or the DCT?

Perhaps the conditions (temperature, humidity, etc) you ran in were such that no matter what you did, you were never going to hit the same 4.3 M/T got, because THEY did it in perfect conditions. Just a thought.

Is 3.8 seconds the bar? In other words, if your car doesn't run a 3.8 then you don't get to tell the world about it? If under 3.8, then you have something to hollar to the world about? ...and why 3.8? Why not save it for only those folks whose car hits a 3.4, like a ZR1?

Mines the DCT version.

Im not calling BS on MT's timing. Then again, I will find it hard to believe that a 4.3 was achievable given that the same device I used on the GTR was on spot on 3.8 consistently.

Not sure what you mean by 3.8sec the bar. What I was trying to say here is , if the GTR runs a 3.8 stock, people will give me funny looks if I were to claimed mine does 4.3 flat stock. As I stated on the previous post, my 35i with jb3 on map 9, essentially 400+ hp, was tore apart by the gtr, with or without launch control.

No offence buddy, these are my views. I love my 35i as much as you do.

[juhap]

On a related note, the .1 difference between DCT and MT seems a bit optimistic, I would imagine it's bigger than that for an average driver/shifter at least (and I've got MT). Then again I guess you reach 60 on 2nd gear, so it's just one gear change.

[BlueZ4AZ]

Originally Posted by sg-e89

Mines the DCT version.

Im not calling BS on MT's timing. Then again, I will find it hard to believe that a 4.3 was achievable given that the same device I used on the GTR was on spot on 3.8 consistently.

Not sure what you mean by 3.8sec the bar. What I was trying to say here is , if the GTR runs a 3.8 stock, people will give me funny looks if I were to claimed mine does 4.3 flat stock. As I stated on the previous post, my 35i with jb3 on map 9, essentially 400+ hp, was tore apart by the gtr, with or without launch control.

No offence buddy, these are my views. I love my 35i as much as you do.

Sorry, but I'm just the messenger here. Why would I take any offense to your view? You are entitle to your view, right or wrong. I not the one you are doubting. I'm just the messenger. If anyone would take offense to your doubting the 4.3, it would be M/T, since it's their professionals testing the vehicle and reported the 0-60 time.

With or without the tune, which may/may not have helped the Z4's 0-60 time. If the Z4 was only 2 car lengths behind a GTR, that sounds like a good showing for any Roadster vs. a Supercar.

[richard in NC]

There's no doubt the GT-R would have a large advantage, given 480 HP and AWD. I don't think 4.3 is impossible for the Z4 but is rather impressive for just 300 (or so) HP. That's about the best time for the M3 with a similar weight, DCT, limited slip, and 100 extra HP.

One thing is for sure. 4.3 seconds would require superb traction and optimal conditions. I wanted to try out the Z4 on an open dragstrip day but missed the chance. The Z Max drag strip apparently has about the stickiest track in the NHRA. Breaking the tires loose could be the problem as opposed to getting traction.

PS: I don't know if M/T corrects for altitude and weather. Some mags do. They may have gotten only a 4.5 or 4.6 and corrected it for sea level, etc.

[Memphis1]

the M3 is over 200 lbs heavier....

why are there 3 pages on this still?? end the thread, it's a pointless argument.