Fore58

Well, they shouldn't be since there was no increase in horsepower. But you are right, there were some high expectations. From the impressions I have read......just a better transmission.

Higgs Boson

is "better" and "two more gears" the same thing?

Fore58

Never driven an A8 and probably won't get a chance until I buy one in the far future. Also, I would lead that to you to answer your own question, sir.

Higgs Boson

so what do you mean by "better transmission?"

Fore58

Do you really think I should go into detail about a "better transmission"? I don't think so. Furthermore, let it be and don't get hung up on a simple post. Doesn't mean anything. Sorry to go off topic, tail lights. Thanks

Snorman

I would define "better" as more smooth shifting, improved shift feel, more fine-tuned programming (more accurate and seamless up and downshifts) and just better (albeit slightly) all around manners.
Faster? Probably not very much.
There were people talking about it knocking several tenths off 0-60 times. An A6 car with traction will hit 60 mph in ~175-185', which would translate to substantial gains over 1320'. Not going to happen IMO. Maybe a tick or two, but at that small increment, there would have to be tons of statistical data to show it's definitively faster than an A6 car.
S.

Ben@WeaponX

It was a complete redesign of the trans, not just essentially adding 2 more gears. It is also their XX90 series much like the 6L90 designed to hold more power since it would be in the Z06. Most have successfully been beating the hell out of the 6L90s in 4500lb CTS Vs for the past 5 years with 600+whp cars being fairly common in that world and 10 second quarter miles also very common.

While this trans will have better mpg and hold more power, the gearing might prove it to be superior on round tracks opposed to straight lines. I'm curious as to the trans temps out of the 8L because my 6L temps SUCK! Hence the additional trans cooler in the works.

tail_lights

New update from another A8!

11.52@121

https://www.corvetteforum.com/forums...2-121-mph.html

Awesome pass!!!

JoesC5

Adding two more gears has nothing to do with running the quarter mile as you will only be using the first 3rd or 4th or 5th gears in the transmission(in addition to the first two gears).

The 1/4 mile difference between the A8 and the A6 is in the gear ratios(transmission & rear end), not the total number of gears in the transmission.

JTMmotorsports

here is an 8-speed going down the track..

DRLC5

Damn nice run and hella fast shifts, Tell more about this beast. Thanks for the video,

tail_lights

VNAMVET

I believe it's got over 700 rwhp, ECS Supercharger, AR 1 7/8 long tubes, Meth injection and of courde, a tune. Tranny is stock fo now, I believe they said.

JTMmotorsports

You got it:

Its a 2015 Z51
It has an ECS 1500 Kit
Alky
ARH 1 7/8's with cats

We just need the tuning software and we feel we can pick up a bunch..
John

thegame

Any eta on tuning software?

JTMmotorsports

No ETA yet..

imxz28

Have you done any changes what-so-ever on the A8 tune?

Jason 98 TA

nobody is able to tune the a8 yet, but it is a awesome tranny!

Our test car baselined at 11.83@120mph at 350ft of altitude.

thegame

Pretty stout for a base vette Get that heads and cam package perfected for the A8 and im sure you will have tons of buyers.

JTMmotorsports

Nothing, like Jason mentioned there is nothing available "yet", as soon as there is we will be on it!!