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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
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
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.
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
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
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.
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.
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
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
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.
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
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.
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
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
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.
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
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?
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.