sorka

Wrong! Acceleromters can be very accurate. The g-tech is for one. However, the ETs are calcuated differently. At the track, your exit speed is averaged over the last 60 feet while with the g-tech it is at the 1/4 mile line. So the g-tech will measure the *true* 1/4 ET which will always be a little faster than the track measured time.

Tom Steele

Hey Lance,

I'm looking for a reference to the 12.8 e.t. in a stock C6.

Thanks,

Tom Steele

I understand the mph is calculated differently. But if anything, the e.t. should be faster at the track as you can stage shallow and get a bit of a rolling start before the timers start.

However, in my experience, G-Tech's and the like tend to report better (faster) e.t.'s than are typically recorded at a real dragstrip.

racelance

Tom-

I'll post the slip after I get it from Callaway. I'll let you know shortly...

Lance

racelance

Tom-

Here's the link that includes the timeslip & pictures of the car at the drags: 12.8 stock C6 time slip - click here!


Hope this is what you were looking for!

Talk to you soon,

Lance

Jason

12.8@109 Stick shift? Nice driving.

oyealiz

i'd guess they didn't miss a gear.

racelance

Z51 - 6 speed.

Lance

Tom Steele

Thanks Lance,

That will go on my files as the best time for a C6 so far. I sure would like to have seen 12.7's or better. I was figuring with GM calling it 12.7 that we would see some good drivers coming in at 12.5-12.6. Looks like GM is about 0.2 faster than the rest of us right now...

P.S. Here is another timeslip to back it up the ~12.9 e.t.s.

http://www.dragtimes.com/Chevrolet-C...slip-4025.html

rbartick

I watched Cartek's C6 make many passes at the last Corvette Challenge with a very good driver. On that day the C6 was not nearly as quick or as fast as a stock Z06.

Y2KMRC5

What does your 'drag car' run in the 1/4? What mods do you have? Have you "beefed up" the tranny?

Thanks,

Dave

racelance

Tom-

Maybe GM used slicks?

Thanks for sharing the link...

Lance

lightninquick

is anyone taking a c6 to palmdale for the corvette challange?

huckleberrydude

There all fast. I'm just glad that I'm waiting for the real one. My 2nd production year C6 Zo6. In the mean time, I'll enjoy my nearly new Zo6 I bought two days ago. Some minor mods to come soon. May the best driver win. Race ya for a set of tires?

Tom Steele

Comments like this upset me at first, because they don't help me with my problem. But maybe the reason that I am not getting help is that I am not communicating my situation well. So let me try.

1. I am not made of money. I have a decent income and can afford a new Corvette from time to time.

2. Power and handling are extremely important to me. I drive my cars aggressively and enjoy doing so.

3. I am very concerned about the pricing of the 2006 Z06 from the threads here and on other Corvette boards. If it is above $60k, I'm starting to get priced out. I could afford it, but it is just not the best use of my money anymore.

4. I am in a unique situation. I have pulled some strings and tugged at a friendship and may have the opportunity to get a C6 Z51 at a VERY nice price. Note: If that weren't the case, oddly enough, I wouldn't be in this quandry. I'd just buy a 2004 Z06 and sit back and watch the show and see what 2006 brings us.

5. I did #4 based on the early reports of the Z51 C6. 400hp and the same transmission as the Z06 and it seemed to me that there shouldn't have been more that 0.1-0.2 difference in 1/4 mile times. Plus, with the torque kicking in lower - by my thinking - the car might even have FELT faster than a Z06. That is starting not to be the case at all.

I have no idea why, but the C6 Z51 is not coming in anywhere near my expectations for performance. I really thought it would be very close to the Z06. The RWHP isn't far off. Makes me wonder what they are doing with the computer...

So, my point in entering these discussions is because I am sweating it out right now, with a Z51 C6 on the way that I may not want if it is significantly slower than the Z06 I have now. And the new Z06 may be priced in to Supercar territory. I would have already bought a used Viper if I wanted to spend $65-$70k on a car. I don't.

I wanted to see some 12.6-12.7 e.t.s in the C6 Z51 and I would have been pleased. So far, we're not seeing that.

bcmarly

I wanted to see some 12.6-12.7 e.t.s in the C6 Z51 and I would have been pleased. So far, we're not seeing that. [/QUOTE]

Both Car and Driver and Motor Trend got 12.7.

Tom Steele

And Santa Claus came to my house and it wasn't my parents...

C&D and MT will happily parrot GM's numbers without ever getting to a track. In spite of being nationally published and widely read magazines, they don't seem to have the budget for a real test facility (i.e. private drag strip). They also seem to have a huge problem getting cars to an actual drag strip. Apparently even though they are "car guys" they don't have time for the track. Finally, they have no problem with putting accelerometer (think G-Tech) numbers up as if they are actual track times without even footnoting it, or making the reader aware.

Jason

Tom Steele

Here's another 13 second C6 Z51...

http://www.z06vette.com/forums/showthread.php?t=66116

johnC5

An experiment to try:

Put stock Z06 wheels and tires on a Z51-C6 and test again (if no clearance/offset issues). Should now have the same gear ratio as the Z06, and the lighter wheel+tire package will also help with acceleration. Or swap wheels+tires with Z06 and see how much the Z06 slows down (or perform both tests).

I suspect that the larger wheel+tire diameter (3.33 AOT 3.42 comparative ratio?) and extra wheel+tire weight (19" vs 18", runflats vs. very light F1's) may account for the slower 1/4 mile times (beyond the extra weight of the C6 and slight HP difference).