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Old Dec 9, 2008 | 08:23 PM
  #21  
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Originally Posted by GETUSUMM
Have you read the pcm to verify that it is not locked?
No I haven't. He told me he didn't lock it because of some PCM issues the 08's had.
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Old Dec 9, 2008 | 09:13 PM
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That would be good if it were not locked. After all, it is yours
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Old Dec 10, 2008 | 04:07 PM
  #23  
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I guess I can see both side of the story on that one. Of course I want to be able to change it if I knew enough about it to do so. I can also see why someone that has worked hard at perfecting what they do and wanting to keep it a secret. It's a fine line to walk and I can appreciate both sides. Having said that, I agree with you, I'm glad mines not locked.
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Old Dec 12, 2008 | 01:30 AM
  #24  
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Default AND....You're car is VERY FAST and YOUR TRANNY IS NOT BLOWN...

Originally Posted by Nd4spd2
Chuck tuned my 08 A6 and it's not locked.
AND....You're car is VERY FAST and YOUR TRANNY IS NOT BLOWN...

Here's the problem....MOST A6s fail because of the tuner. The trans is mostly understood by the guys trying to tune them.

It's NOTHING like the A4 WHATSOEVER. Internally, or from a software standpoint.

From the many tunes I've looked at, I get the impression that the tuners think it's an A4 or something.

While you might think your blower MAKES TOO MUCH POWER...Get better TIRES! cause the reason these transmissions break hard parts is cause most of you are forcing BLOWER POWER through a trans that trying to turn the wheels with 2.56 gears. It's like trying to run the quarter with a big chain tied to a tree.

The power is going in....and shredding the trans....cause it's not making it to the ground.

A (especially mine) high ratio rear end will take upwards of 30% load OFF OF your poor stock trans and make sure it gets to the ground.

The engine will rev quicker and UNDER LESS LOAD (take pencil and jot down this very simple but important fact for future use).

Sure, blowers work great...but when you mis match the application, YES VIRGINIA, YOU CAN HAVE TOO MUCH POWER.

Blowers for A6 cars are much like STEROIDS for people.

Yes, you can have TOO MUCH. YES, the stakes are high.

Yes, it looks good....UNTIL your kidneys fail.

Did you ever see one of those BIG steroid body builders with LITTLE SKINNY CHICKEN LEGS????

Kinda reminds me of an A6 car with a 2.73 rear end and A BIG BLOWER.
Chuck CoW
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Old Dec 12, 2008 | 08:58 AM
  #25  
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Chuck, I asked this question in your " COW A6 mail order tune removal made EASY!" Thread and you did not answer it yet. How fast is the fastest car you have done the tranny tune to? rwhp, 1/4. How long has the tranny been living? BTW, my car has 33k miles and runs 11:2x's on the motor. Its been like that for a few years. It also has 3:15 gears. Thanks
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Old Dec 12, 2008 | 09:36 AM
  #26  
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RPM does have built options available for the A6, I can tell you the specfics, if they have not. I know they are down here at P.R.I in Orlando as we ran into Rodney and crew
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Old Dec 12, 2008 | 09:50 AM
  #27  
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Originally Posted by IPS Motorsports
RPM does have built options available for the A6, I can tell you the specfics, if they have not. I know they are down here at P.R.I in Orlando as we ran into Rodney and crew

I talked to RPM about it. It just seems that no one is sure about a change or a build. Like how much power has one ran with this A6? Any new hard parts? No. It's difficult to justify spending $3000.00 to feel like a guinea pig. I know Rpm does great work but I need facts to drop that kind of money on a tranny. I could spend $1500.00 more and do one of there high horsepower proven A4’s with a stand alone controller. I am getting the tranny fixed now. (a trade costing me next to nothing) but I know it will be on borrowed time at my power level.
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Old Dec 12, 2008 | 11:09 AM
  #28  
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Originally Posted by Chuck CoW
While you might think your blower MAKES TOO MUCH POWER...Get better TIRES! cause the reason these transmissions break hard parts is cause most of you are forcing BLOWER POWER through a trans that trying to turn the wheels with 2.56 gears. It's like trying to run the quarter with a big chain tied to a tree.
So what do you recommend for someone who wants high horsepower through the A6 but refuses to turn anything more than 2000 RPM at 90 mph?
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Old Dec 12, 2008 | 11:59 AM
  #29  
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Originally Posted by Chuck CoW
AND....You're car is VERY FAST and YOUR TRANNY IS NOT BLOWN...

these transmissions break hard parts is cause most of you are forcing BLOWER POWER through a trans that trying to turn the wheels with 2.56 gears. It's like trying to run the quarter with a big chain tied to a tree.
But Chuck, the A6 with 2.56's is like an A4 with 3.92's in the first three gears????
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Old Dec 12, 2008 | 12:22 PM
  #30  
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Originally Posted by glennhl
But Chuck, the A6 with 2.56's is like an A4 with 3.92's in the first three gears????
, the whole reason for the anemic 2.56 and 2.73 gearing was because of the big trans gearing in the A6 compared to the A4.
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Old Dec 12, 2008 | 12:37 PM
  #31  
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Originally Posted by glennhl
But Chuck, the A6 with 2.56's is like an A4 with 3.92's in the first three gears????
Yep, pretty darn close.

Here's the math:

A6
1st gear) 4.02 * 3.42 = 13.7484
2nd gear) 2.36 * 3.42 = 8.0712
3rd gear) 1.53 * 3.42 = 5.236

A4
1st gear) 3.06 * 3.90 = 11.934
2nd gear) 1.63 * 3.90 = 6.357
3rd gear) 1.00 * 3.90 = 3.90
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Old Dec 12, 2008 | 01:05 PM
  #32  
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Originally Posted by Chuck CoW
AND....You're car is VERY FAST and YOUR TRANNY IS NOT BLOWN...

Here's the problem....MOST A6s fail because of the tuner. The trans is mostly understood by the guys trying to tune them.

It's NOTHING like the A4 WHATSOEVER. Internally, or from a software standpoint.

From the many tunes I've looked at, I get the impression that the tuners think it's an A4 or something.

While you might think your blower MAKES TOO MUCH POWER...Get better TIRES! cause the reason these transmissions break hard parts is cause most of you are forcing BLOWER POWER through a trans that trying to turn the wheels with 2.56 gears. It's like trying to run the quarter with a big chain tied to a tree.

The power is going in....and shredding the trans....cause it's not making it to the ground.

A (especially mine) high ratio rear end will take upwards of 30% load OFF OF your poor stock trans and make sure it gets to the ground.

The engine will rev quicker and UNDER LESS LOAD (take pencil and jot down this very simple but important fact for future use).

Sure, blowers work great...but when you mis match the application, YES VIRGINIA, YOU CAN HAVE TOO MUCH POWER.

Blowers for A6 cars are much like STEROIDS for people.

Yes, you can have TOO MUCH. YES, the stakes are high.

Yes, it looks good....UNTIL your kidneys fail.

Did you ever see one of those BIG steroid body builders with LITTLE SKINNY CHICKEN LEGS????

Kinda reminds me of an A6 car with a 2.73 rear end and A BIG BLOWER.
Chuck CoW
Chuck, With all due respect to you and Nd4spd2 , saying “AND....You're car is VERY FAST and YOUR TRANNY IS NOT BLOWN..” to someone that only has a varraram and tune is over the top imho. The car is making approx 25 rwhp more than a stock car. I would hope the tranny would last with or without a tranny tune. As for the other statements you have made, I am trying to understand them. Are you saying that when adding a blower more gear is needed? I have ran 10:60’s with a 3500 lb car with a 2500 stall and 3:55 gears. Adding the blower produces more torque and horsepower. With more torque, you don’t need more gear. Look at all the high horsepower guys that run blowers and turbos. They have to run less gear. I think the gears are nice for stock cars and h/c/i cars. I went from a 2.56 gear to a 3:15 and only picked up a tenth to a tenth and a half. If my combo keeps growing (and someone figures out how to make an A6 hold high horsepower) I will need to step down from the 3:15 gears. Since changing the 2:56 to a 3:42 does makes the car rev faster and get in the power band faster, lets say that changing the gears takes away some of the stress put on first gear. Does it outweigh the stress of the higher horsepower/torque put on 2nd, 3rd, and 4th gear?
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Old Dec 12, 2008 | 03:01 PM
  #33  
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Originally Posted by thesubfloor
Yep, pretty darn close.

Here's the math:

A6
1st gear) 4.02 * 3.42 = 13.7484
2nd gear) 2.36 * 3.42 = 8.0712
3rd gear) 1.53 * 3.42 = 5.236

A4
1st gear) 3.06 * 3.90 = 11.934
2nd gear) 1.63 * 3.90 = 6.357
3rd gear) 1.00 * 3.90 = 3.90

Here's the math I was referring to:


A6
1st gear) 4.02 * 2.56 = 10.29
2nd gear) 2.36 * 2.56 = 6.04
3rd gear) 1.53 * 2.56 = 3.92

A4
1st gear) 3.06 * 3.90 = 11.934
2nd gear) 1.63 * 3.90 = 6.357
3rd gear) 1.00 * 3.90 = 3.90
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Old Dec 12, 2008 | 03:08 PM
  #34  
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Originally Posted by glennhl
Here's the math I was referring to:


A6
1st gear) 4.02 * 2.56 = 10.29
2nd gear) 2.36 * 2.56 = 6.04
3rd gear) 1.53 * 2.56 = 3.92

A4
1st gear) 3.06 * 3.90 = 11.934
2nd gear) 1.63 * 3.90 = 6.357
3rd gear) 1.00 * 3.90 = 3.90
Whoops, sorry about that. I have 3.42 gears which is why I used that number instead of 2.56.

Christopher
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Old Dec 12, 2008 | 03:36 PM
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Originally Posted by thesubfloor
Whoops, sorry about that. I have 3.42 gears which is why I used that number instead of 2.56.

Christopher
I kind of thought that. If I need some stumps pulled from my lot I'll be calling you to come over to Arizona with your Vette. That thing has to be AWESOME!
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Old Dec 12, 2008 | 03:42 PM
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Originally Posted by glennhl
I kind of thought that. If I need some stumps pulled from my lot I'll be calling you to come over to Arizona with your Vette. That thing has to be AWESOME!
I actually was in your neck of the woods last weekend with what was effectively a clone of my car. I installed 3.42 gears and a Yank 3600 converter in my buddy's 07 and we ran a best time of 11.385 at Speedworld. We probably could have gone faster but it started to cool down way too much and couldn't hook when launching the car.

Either I or he will be posting up the timeslip sometime this weekend.

Christopher
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Old Dec 12, 2008 | 05:09 PM
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Originally Posted by Ragtop 99
This compares the effective gearing of the different A6 rears. I put the M6 with Z51 in for comparison. The higher the number the quicker it will accelerate for given amount of torque. A couple observations:

3.15s match up pretty well with Z51 M6 with the advantage of a lower first gear but you'll be turning a few more rpms on the highway.


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Old Dec 12, 2008 | 05:43 PM
  #38  
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Originally Posted by thesubfloor
I actually was in your neck of the woods last weekend with what was effectively a clone of my car. I installed 3.42 gears and a Yank 3600 converter in my buddy's 07 and we ran a best time of 11.385 at Speedworld. We probably could have gone faster but it started to cool down way too much and couldn't hook when launching the car.

Either I or he will be posting up the timeslip sometime this weekend.

Christopher
Yes, you emailed me earlier about your trip over here. Glad you got it down into the low 11's. That's the biggest problem at Speedworld and Firebird. As soon as the sun goes down, the air gets good and the track goes away! Best you can hope for is a nice cold day with the sun shining bright.

Also, what became of the 11.5 second limit? Did they kick you off the track when you ran 11.3???

Last edited by glennhl; Dec 12, 2008 at 05:50 PM.
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Old Dec 12, 2008 | 05:56 PM
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Originally Posted by glennhl
Yes, you emailed me earlier about your trip over here. Glad you got it down into the low 11's. That's the biggest problem at Speedworld and Firebird. As soon as the sun goes down, the air gets good and the track goes away! Best you can hope for is a nice cold day with the sun shining bright.

Also, what became of the 11.5 second limit? Did they kick you off the track when you ran 11.3???
The guy who teched me said that I couldn't run any faster than 11.50 but I later ended up talking to Bernie (the track manager) about it. Since he's a Corvette fan and was already admiring the Lingenfelter badges on the car before I even talked to him, he told me that I could run it all out and if I went too fast he'd talk to me about slowing it down.

When I got teched the second time the same guy who first told me that I couldn't break the rules ended up giving me grief because I *only* ran an 11.493 during the afternoon session.

You gotta love it - first they tell me not to break the rules and then hassle me because I didn't break them enough!
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Old Dec 12, 2008 | 10:43 PM
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Originally Posted by thesubfloor
The guy who teched me said that I couldn't run any faster than 11.50 but I later ended up talking to Bernie (the track manager) about it. Since he's a Corvette fan and was already admiring the Lingenfelter badges on the car before I even talked to him, he told me that I could run it all out and if I went too fast he'd talk to me about slowing it down.

When I got teched the second time the same guy who first told me that I couldn't break the rules ended up giving me grief because I *only* ran an 11.493 during the afternoon session.

You gotta love it - first they tell me not to break the rules and then hassle me because I didn't break them enough!
Yea, sounds like you can't win. But at least the track manager was a good guy.
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