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Road Test in Road and Track

Rob

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Did anyone else happen to see the latest sports car comparison in Road and Track Magazine? They paired a Porsche 911 to a Viper and stated that the reason why there was no Z06 is because it wasn't fast enough. After comparing their test results to those acquired from competing car magazines and reported here in the Model Center, I sent the following letter to the editor:

On page 66 of your August 2003 issue in the Power Trip article, you state:

"Where is the Chevrolet Corvette Z06? How about classic muscle cars like the Ford Mustang? Shouldn't these two be the perfect players for this drag strip showdown? Well, they are simply not fast enough."

I'm not sure I agree with this. In your article, the test results for time only are as follows:

Porsche 911 Turbo: 8.8 sec (0-100 mph Time), 4.2 sec. (100-0 mph), 13.5 sec. Total
DodgeViper SRT-10: 9.2 sec (0-100 mph Time), 4.0 sec. (100-0 mph), 13.9 sec. Total

In February of 2002, a competitor magazine to Road and Track achieved the following test results with a 2002 Z06 Corvette:

9.48 sec (0-100 mph Time), 13.56 sec. (Total 0-100-0 mph)

The same magazine achieved a 9.2 sec (0-100 mph Time) in December of 2001 using a 2002 Z06 Corvette. It appears to me that those peformance figures, although acquired by a competitor to Road and Track, clearly indicate that the Z06 is in fact, fast enough to be within the same company as the Porsche 911 Turbo and the Dodge Viper SRT-10.

-Rob Loszewski, Site Administrator
Corvette Action Center
http://CorvetteActionCenter.com
 
Excellent letter! Please let us know if you get a response.
 
Excellent letter! Please let us know if you get a response.

That's what I think too Rob.

I have here in my hands the November 2002 Motor Trend Magazine and they do a very good road test of the Z06 vs Viper SRT-10!
 
Good letter Rob!! :beer For some reason...R&T just doesn't like chevy's. But they sure like european cars!!
 
I read that article too and it wasn't very informative. I don't know who they're using to test drive their Z06's, but I don't think those guys are very good drivers. R&T really loves that Enzo to say the least. The Z06 gets no respect!

But I don't take to heart what any of those magazines says. I do buy them for solid information like production numbers and specifications. I have a subscription and it's really cheap; I end up throwing the magazine away without reading most of the articles because of the BS that seems to be printed in some of them. I actually find the letters to the editor more enjoyable than most of the articles.
 
When you cut my finger, I bleed bow-tie red, ie: I'm so biased towards Corvettes it's unreal...but...then there's my self-appointed task as the keeper of the "Beacon of Reality".

Once again, we have the confusion between the word "fast" and the word "quick". Even our esteemed fearless leader, Rob, doesn't understand.

The Road and Track story says that Z06 was excluded because it isn't fast enough. That means the car's top speed is too low. Rob argues with the car's acceleration time, which admittedly is world class but is also irrlevant to the issue at hand. This is a dumb mistake but it is made often because people don't think about the meanings of the words "speed" and "acceleration".

The problem is the Z06's top speed is limited by gearing...a 3.42 axle and a close ratio six-speed trans...to about 172-176 mph. Past that in fifth and you're on the rev limiter. The car's engine is not powerful enough to go any faster in sixth gear because the engine is too far below it's power peak to overcome aerodynamic drag.

Viper and the AMG E55 may not have that problem---especially Viper with a 3.07 axle and 500hp.

While it seems unfair to exclude the Z06 from Road and Track's story, it's actually a good idea because when tested for top speed, the Z06 would be a looser and would look bad.
 
Hib Halverson said:
When you cut my finger, I bleed bow-tie red, ie: I'm so biased towards Corvettes it's unreal...but...then there's my self-appointed task as the keeper of the "Beacon of Reality".

Once again, we have the confusion between the word "fast" and the word "quick". Even our esteemed fearless leader, Rob, doesn't understand.

The Road and Track story says that Z06 was excluded because it isn't fast enough. That means the car's top speed is too low. Rob argues with the car's acceleration time, which admittedly is world class but is also irrlevant to the issue at hand. This is a dumb mistake but it is made often because people don't think about the meanings of the words "speed" and "acceleration".

The problem is the Z06's top speed is limited by gearing...a 3.42 axle and a close ratio six-speed trans...to about 172-176 mph. Past that in fifth and you're on the rev limiter. The car's engine is not powerful enough to go any faster in sixth gear because the engine is too far below it's power peak to overcome aerodynamic drag.

Viper and the AMG E55 may not have that problem---especially Viper with a 3.07 axle and 500hp.

While it seems unfair to exclude the Z06 from Road and Track's story, it's actually a good idea because when tested for top speed, the Z06 would be a looser and would look bad.

I need a middle finger smiley here. :L :L :L

Just kidding Hib. Good point dude. :D
 
What rear gear ratio would be best for a Z06?

A 3:73 or a 3.90?

Just out of curiosity which would be best. I see a lot of guys swapping out the 3.42's in M6's for 3.90 or 4.10 and Z owners thinking about 3.90's and sometimes go for the durability of the 3.73's

Which is best for a stock Z06? And what would end up being the top speed? An extra 10mph? 20mph?

I personally think since the C6 is hitting the show circuit in January..the automotive press thought it might be a good idea for sales to NOT USE A Z06 in yet another sportscar comparision.

JMO
 
A Z06 is damn fast even with the stock 3.42 gearing, mostly because of it's extra-low first gear ratio compared to a standard C5. 3.73 or 3.90 will not give you more top speed; in fact, you'll get less, because you're topping out the motor quicker. Unless of course you're searching for a gear that will put the motor in it's torque curve in sixth gear, but then, that's what fifth gear is now.
 

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