I am planning on an order for a 2008 Vette shortly. My intentions are to go to a TT set up in the future. My preference is always a MN6, but I am curious about the opinions of TT owners. Should I be considering the automatic?
No track activity is planned necessarily. Daily Driver.
Advantages/Disadvantages?
Bill
Last edited by OrlandoNassauBlueC5; 01-27-2008 at 08:37 PM.
I have an 06 vette that started life as an A6 car. I did several mods to the car including APS tt's. At 500 rwhp the trans seemed fine. Once the car went to 550rwhp the trans started having problems. The car now has a Z06 trans and rear in it. Call RPM transmissions and talk to Rodney or Todd. They are the most experianced people with these trans that I know of. They will tell you the straight scoop.
Once you start the upgrades, it is hard to stop.
I love my A6 behind 505rwhp/500rwtq.........when you're on boost, the car is much easier to handle (you couldn't outshift it with a standard at WOT). My last 2 vettes were both standards, I wanted a change. That being said, if you're looking for 550 rwhp + I would be worried about the longevity of a stock A6....I know of a few that have let go at this level.
I'm at 557rwhp on an A6 and have zero issues with the tranny etc. However I am running a runflat in the rear so the limited traction may be somewhat of a life saver.
A turbo'd C6 with an auto tranny is ideal because the car stays in boost when the time between shifts is at a minimum and RPM's stay up.
The one issue I have, after 8k miles, is under WOT the care accelerates so fast I have to begin to shift around 4500rpm's when using the paddles. This allows time for the computer to start thinking and shift the car. Otherwise I have bounced off the rev limiter and bogged down completely. Pretty embarassing at times! It is def a software problem and I wonder if the bugs have been worked out for the 2008's?
From reading the posts of others and a little research, the APS TT kit seems to be the popular choice. Since I am in Orlando, FL, I will pay Next Level Performance a visit at some point.
I would be looking for a mild TT tune to balance reliability and power. I suspect that is in the neighborhood of 500 rwhp rather than 550+.
I would prefer avoiding the need for any engine internal swap outs and and drive train changes.
As you and the others in this thread have stated, if you are going with the A6 we recommend staying at the 500 RWHP range for reliability of the trans. If you want to see some of our installs we will be at the "Cars For the Cure" carshow in Lake Mary this coming Saturday with 5 or 6 of our cars, one Z06 APS TT, two C6 APS TT's, a C6 Maggie, and a couple of others. It's a great show and it benefits the American Lung Association.
if you want big hp and an auto, go to a 2005 and get the a4 which RPM can beef up to 800 rwhp.
but I would think the aftermarket will step up soon and the 2008 programming is supposed to be a bit better.
the a6 definitely is the weak link, but turbos sure work great with automatics
I converted my 2003 z06 TT to an automatic RPM stg 5 and it works GREAT! car is much more controllable and no more on and off the throttle, one bit pull!!
The problem with the A6 tranmission thus far is the pcm, and how it controls the clutches. The transmissions have been built already, just waiting on programing it seems.
I'm saying that an 05 with an A4 can be upgraded with an RPM A4. There aren't any built A6's on the market yet.
just had to buy the Stage V from Rodney at RPM. My A4 lasted about 2k miles of relatively easy driving with 600rwhp. 3rd gear went out.....ironically, that's the gear where the car would finally start to hook up . No issues with the Stage V and Rodney is top-notch....this is my second A4 from him (2 cars, not 1 car 2 trannys ) and they both have performed perfect.
That being said, I'm an auto guy........I'd love to go against a 600rwhp MN6 from a dig....I can't imagine trying to launch one of those. Anyway, I'm all about straight line - short time performance. My stage V & 3200 stall allow me to do just that.....reliably
Corvette Store
Auto or Manual if TT is the plan?
Pretty embarassing at times! It is def a software problem and I wonder if the bugs have been worked out for the 2008's?
just had to buy the Stage V from Rodney at RPM. My A4 lasted about 2k miles of relatively easy driving with 600rwhp. 3rd gear went out.....ironically, that's the gear where the car would finally start to hook up 
. No issues with the Stage V and Rodney is top-notch....this is my second A4 from him (2 cars, not 1 car 2 trannys 
) and they both have performed perfect. 
