Anyone have any actual seat time with a C6 with the auto with standard rear axle ratio vs. Perf. rear axle ratio. I have been looking at inventories and it appears very few of the East Coast Dealers order or receive cars with the performance option G90. Is it a real noticable difference?

 

yes very noticable. A performance ratio auto will be quicker in the 1/4 mile than a 6sp, acutally a standard auto will too!

 

The G-90 is the option you have to order with the auto trans Corvette.
The standard rear gear ratio is 2.73 a real dog you won't be happy if you want that acceleration instant power on demand at all speeds. Your gas mileage will be a little better with the 2.73 gears and maybe top end speed too but most of us have been getting the 3.15 performance rear end.

 

I suspect the people who would go for the G90 option would go for the Z51 option, which includes G90.

 

Come on now! Where did you get that from!!!

The automatic will be more consistent with 1/4 mile times, but a good driver with a 6-speed will do better.

Saying the standard ratio automatic is also quicker vs. a 6-speed is really dreaming.

 

Believe this or not --the fastest posted speed I have seen in this forum was a 12.70 from an a4 auto with 2.73. The stats but not a photo of the actual time slip. The actual time slip for an a4 with the 3.15 was posted and I believe it was a 12.76. We did have a mn6 report a 12.5 but most mn 6's have been slower. Come spring a lot more of us will have the chance to take fully broken in c6's to the tracks and we'll see how this shakes down.

I will say that I would like my chances with my a4-3.15 against myself in an mn6. There is both the potential and the real world when variables such as launch, wheelspin, and proper shifting come into play. I would wager that most c6 owners would also record quicker et's with the auto as well.

BTW, if the 12.70 reported with the 2.73 is true, the track and weather conditions might have allowed for the 3.15 to run a 12.5.

 

LOOK

:I will say that I would like my chances with my a4-3.15 against myself in an mn6. There is both the potential and the real world when variables such as launch, wheelspin, and proper shifting come into play. I would wager that most c6 owners would also record quicker et's with the auto as well."

"Believe this or not --the fastest posted speed I have seen in this forum was a 12.70 from an a4 auto with 2.73. "


see

if ur around the track much auto vs manual in the exact car with no mods.......auto will walk all over it even with a good driver the auto will be quicker the mn6 might have 2mph on it but auto gets there quicker.

 

Then why does Chevrolet say the six speed is quicker in both 0-60 & 1/4 mile? .5 seconds 0-60 z51 manual vs. a4 with 2.73.

 

The answer to your question lies in who is driving the car and under what conditions--again potential vs real world. A professional driver under ideal weather , road, and temperature conditions with the mn 6 will beat the a4. But if you read the threads ,it is more often than not the manual guys complaining that they have to feather on the power because of excessive wheelspin in 1st and 2nd gears. Throw on some dusty road surfices and try to get the manual to hook up----I personnally drove one for over an hour and tried all kinds of techniques .I wanted to give my brother a ride in mine but it was in the shop waiting for crank pulley repairs. The dealer was kind enough to turn us loose in the mn6.

M y brother drives an Sti which does nothing but hook up. I have a c6 with 3.15. After an hour of us taking turns with the manual we were in agreement. The mn6 has the potential to dust us both but that in the real world it's traction issues compromises it.

Whatever GM says regarding the times is not an absolute. Where and when and who and at what temp is the real world. No c6 should risk embarressment by going up against an all wheel drive in cold temps. And if a 400 horse manual has to ''feather'' on it's juice against a 400 horse auto that can mash the pedal and go--I would ask you which is going to clear the traps first?

What I said is that most owners would have better times with the a4. Throw on a pair of slicks and a guy who can really hit the gears and that is where the potential hits the road----bye, bye a4 ---the back end of the mn6 is what I'm looking at---and it is sweet.

 

I am the one with the 12.76 at just a smidge under 111.

I am going back to the strip to try for a 12.5 tomorrow. It will be in the 50's!!

 

Please let us know how you did. It is 8 degrees here in Pa. Waiting for spring to hit Maple Grove or Numedia. Any mn 6's in the eastern/central Pa. area want to dance this spring? I'll be your huckleberry.

 

Competition dragsters use autos...must be something to it. Regardless of how good the driver is human error will eventually come into play. Miss shift, short shift, etc. The auto takes that out of the equation.

 

The clutch won't last too long after driving like that same goes for the drivetrain. The auto is easier on the drivetrain and will shift faster than any human.

 

 

Got F-55 I won't ever take the Corvette to its full potential or drive like that so I want to enjoy the best of both worlds but mainly get the softest ride in the Corvette that I can because the roads here are the worst and I would benefit more from F-55 than Z-51 which is determined by car usage of Corvette and driving style makes F-55 better for me. Z-51 has a stiffer ride but that is all the time and I won't be driving it like that all the time besides the tires wear out faster than the base tires and much faster if you drive it the way it was meant to be driven.

 

So I guess it's ok to have a automatic vette. I mean it's a convertible and optioned out but a lot of people on here think auto doesn't belong in a vette I personally like mine being an auto I have had manuals and personally unless u r going through the gears at WOT you couldn't give me another they're only more fun TO ME when going throught hte gears at wot thats it.

makes me feel better about having a auto bc I catch it on here about it.

 

If you don't get the HP axle, my advice is Never Ever drive a car that has it!

 

I ordered the F-55 and the A4 with the Performance Axle. Once I get the Z51 X-drilled brake system from parts I will be pretty happy.

 

Big Block 454.. only faster