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Old Jun 4, 2008 | 05:30 PM
  #21  
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Originally Posted by thesubfloor
Makes me wonder why I can't run better times then, although it might have something to do with the fact I blew up my transmission that Friday night and it's at the dealership getting a new valve body as we speak.
with a new trans or sometimes parts the tech hits trans dapt then it relearns and sometimes they re tune the tcm
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Old Jun 4, 2008 | 05:38 PM
  #22  
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Originally Posted by dennis50nj
with a new trans or sometimes parts the tech hits trans dapt then it relearns and sometimes they re tune the tcm
I've had the 2-3 shift flare-up problem for several months now so I'm thinking that I might have been getting too much slippage both between gears as well as while I'm in a certain gear.

I should have the car back in time before Vette Magic on Sunday (all Corvette drag race in Sacramento) and will post up my times if they're any different after the transmission's been fixed.
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Old Jun 4, 2008 | 05:41 PM
  #23  
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Originally Posted by thesubfloor
I've had the 2-3 shift flare-up problem for several months now so I'm thinking that I might have been getting too much slippage both between gears as well as while I'm in a certain gear.

I should have the car back in time before Vette Magic on Sunday (all Corvette drag race in Sacramento) and will post up my times if they're any different after the transmission's been fixed.
what o you mean flare up, searching for a gear up and down or hitting revlimiter before shift
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Old Jun 4, 2008 | 05:52 PM
  #24  
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Originally Posted by dennis50nj
what o you mean flare up, searching for a gear up and down or hitting revlimiter before shift
There's a pretty common problem with the A6 transmission where the tach will jump anywhere from 100 to 1000 rpm during the 2-3 shift. The fix is to replace the valve body which is what I'm having done to mine as we speak.
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Old Jun 4, 2008 | 05:53 PM
  #25  
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Originally Posted by thesubfloor
Was your best 60ft on drag radials or run flats?

According to what I've seen in my tune the TM is turned off but I'll shoot my tuner an e-mail to see if either something was missed or if there really is no way to turn it off on a launch. I do know that without a decent burnout I don't notice any hesitation and can spin the tires halfway down the track.
The 1.72 was with BFG drag radials...TM is there for me I have to drive around it like Dennis does and i haven`t got that skill yet. Thats why i say there is TM in your launch.
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Old Jun 4, 2008 | 06:00 PM
  #26  
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Originally Posted by thesubfloor
There's a pretty common problem with the A6 transmission where the tach will jump anywhere from 100 to 1000 rpm during the 2-3 shift. The fix is to replace the valve body which is what I'm having done to mine as we speak.
i had that problem with mine an a4 searching for gears they had to replace the valve body with shift solenoids they did it 4 times finally put the long bolts where the short ones go and they went into the square opening of the sun gear started it and they took it for a test drive and said all fixed, when i went out and started it i could hear the scraping it sheared the bolts off cut the sun gear like it was on a lathe, got a new trans and more problems
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Old Jun 4, 2008 | 06:00 PM
  #27  
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Originally Posted by Tony B4
The 1.72 was with BFG drag radials...TM is there for me I have to drive around it like Dennis does and i haven`t got that skill yet. Thats why i say there is TM in your launch.
Then maybe I do still have TM at launch.
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Old Jun 4, 2008 | 06:01 PM
  #28  
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Originally Posted by dennis50nj
i had that problem with mine an a4 searching for gears they had to replace the valve body with shift solenoids they did it 4 times finally put the long bolts where the short ones go and they went into the square opening of the sun gear started it and they took it for a test drive and said all fixed, when i went out and started it i could hear the scraping it sheared the bolts off cut the sun gear like it was on a lathe, got a new trans and more problems
I hope I don't end up going through the same thing.
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Old Jun 4, 2008 | 06:04 PM
  #29  
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Originally Posted by thesubfloor
Then maybe I do still have TM at launch.
I also have the same rim and tire combo that Dennis has on his rears.
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Old Jun 4, 2008 | 06:12 PM
  #30  
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Originally Posted by Tony B4
I also have the same rim and tire combo that Dennis has on his rears.

That's kinda weird because on paper, you should be running numbers comparable to Dennis but your 60ft and ETs are pretty close to mine.
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Old Jun 4, 2008 | 06:14 PM
  #31  
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Originally Posted by thesubfloor
I hope I don't end up going through the same thing.
i hope you dont either it was a nightmare after the new trans 250 trans temps they said gm says acceptable it wouldnt shift right at those temps then they blamed the tune , when they did the trans they wouldnt put the converter back in they put a new stock one i alreadey had the converter opened and checked fo metal parts from the damage the tech did, so i had to pay for another converter install but before that the took my ecm out and tcm and replaced with stock tune and it still hit 250 in 5 miles after a month of complaing they found out the lines were cloged and there was no flow rhats why it was so hot. so i had cartek put the converter back in and the retuned tcm and pcm for free i paid for the converter install but they retuned trans and tune for free
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Old Jun 4, 2008 | 06:14 PM
  #32  
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Originally Posted by thesubfloor
That's kinda weird because on paper, you should be running numbers comparable to Dennis but your 60ft and ETs are pretty close to mine.
Yes but Dennis has been doing this for years...I am a rookie.

Dennis also has gears,and a bigger stall than i do, plus he knows how to launch, i don`t just yet.

I still have the stock 2.56 gears.
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Old Jun 4, 2008 | 06:16 PM
  #33  
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Originally Posted by thesubfloor
That's kinda weird because on paper, you should be running numbers comparable to Dennis but your 60ft and ETs are pretty close to mine.
he will with more seat time. but im not telling him that much more to go faster then me
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Old Jun 4, 2008 | 06:18 PM
  #34  
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Originally Posted by dennis50nj
he will with more seat time. but im not telling him that much more to go faster then me
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Old Jun 4, 2008 | 06:33 PM
  #35  
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Originally Posted by dennis50nj
i hope you dont either it was a nightmare after the new trans 250 trans temps they said gm says acceptable it wouldnt shift right at those temps then they blamed the tune , when they did the trans they wouldnt put the converter back in they put a new stock one i alreadey had the converter opened and checked fo metal parts from the damage the tech did, so i had to pay for another converter install but before that the took my ecm out and tcm and replaced with stock tune and it still hit 250 in 5 miles after a month of complaing they found out the lines were cloged and there was no flow rhats why it was so hot. so i had cartek put the converter back in and the retuned tcm and pcm for free i paid for the converter install but they retuned trans and tune for free
I have a funny feeling I'm going to go through something similar since I race the car quite a bit.
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Old Jun 4, 2008 | 06:51 PM
  #36  
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Originally Posted by dennis50nj
i hope you dont either it was a nightmare after the new trans 250 trans temps they said gm says acceptable it wouldnt shift right at those temps then they blamed the tune , when they did the trans they wouldnt put the converter back in they put a new stock one i alreadey had the converter opened and checked fo metal parts from the damage the tech did, so i had to pay for another converter install but before that the took my ecm out and tcm and replaced with stock tune and it still hit 250 in 5 miles after a month of complaing they found out the lines were cloged and there was no flow rhats why it was so hot. so i had cartek put the converter back in and the retuned tcm and pcm for free i paid for the converter install but they retuned trans and tune for free
One more question - did you end up having so many problems because the transmission was really jacked up, because the dealership was incompetent or a little of both?
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Old Jun 4, 2008 | 08:10 PM
  #37  
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Originally Posted by blackfd
does torque management ONLY intervene when there is tire spin? I notice my power delivery in my 08 MN6 is "inconsistant" at times even with the same water temps and ambient temps, feels like the ECU is doing something to reduce power sometimes, but a loss of traction hasn't occured
TM intervenes most when you hook up well, thats why most folk's 60fts suck even though they get decent traction. The harder you hook with TM still present in tuning, the more torque it reads and pulls back power accordingly.
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Old Jun 4, 2008 | 08:18 PM
  #38  
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Originally Posted by Tony B4
I wouldn`t put all my cards in the dyno numbers, you did run 11.48@123mph.

I think your 60ft has alot of room for improvement...There has to be TM there in your launch. Just my .02
I agree
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Old Jun 4, 2008 | 08:24 PM
  #39  
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Dont beat yourself up, Dennis can drive his azz off!!
Mike
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Old Jun 4, 2008 | 08:25 PM
  #40  
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Seat time is all we need!!
Mike
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