changing gears
Thread Starter
Burning Brakes
Joined: Jun 2004
Posts: 1,211
Likes: 0
From: Nesconset NY
St. Jude Donor '04 & '05
changing gears
Hi
I am changing the rear end of my 04 from 2.73 to 3.42s. Do I need a tune or will the on board computer recognise the new rear end gears
Thanks
I am changing the rear end of my 04 from 2.73 to 3.42s. Do I need a tune or will the on board computer recognise the new rear end gears
Thanks
Former Vendor
Joined: Apr 2007
Posts: 1,331
Likes: 4
From: Jacksonville Florida
Since you have 2.73's, im assuming you are an A4, with the A4 you do need to have the tune adjusted for the gear's, it will change your speedo and shift points.
M6 no need whatsoever
M6 no need whatsoever
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
as someone in the business; I'm surprised you didn't know that
Team Owner
Joined: Jul 2004
Posts: 24,652
Likes: 298
From: NJ
St. Jude Donor '05-'08
Former Vendor
Joined: Apr 2007
Posts: 1,331
Likes: 4
From: Jacksonville Florida
As stated above in my first post and by wicked weasel, your tune will need to be adjusted with an A4
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Safety Car
Joined: Jul 2006
Posts: 4,325
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From: You can't get there from here NJ
St. Jude Donor '08-'09
I had 3.42's installed in my 03 A4. A good tune is essential to have your car run right. Shift points need to be changed, and alot of other things need to be adjusted. You will not believe it's the same car if all this is done correctly, but it must be done. Also, go to someone who is very familiar with A4 trans, because it is ALOT different from tuning an M6 from my experience.
Racer
Joined: Feb 2005
Posts: 436
Likes: 1
From: Gatineau Quebec
Yes as stated you will need a tune and you will see a great improvement..BUT!! since you are in there you should put at least a 2800 TC then you will see a ..outstanding difference and it will perform like stock nice and tight." PS Ihave a 3200 "
Team Owner
Joined: Jul 2004
Posts: 24,652
Likes: 298
From: NJ
St. Jude Donor '05-'08
Lets get everyone on the same page before people think a full tune is needed for a gear change.
First - if you have a MN6 and you are changing gears than nothing has to be done.
Second - if you are changing the gears on an A4 than the Shift points only need to be adjusted a tune is not needed.
For the most that is all that is needed. Once in awhile there is a problem with rev limiter on the manuals that recently has come to my attention which woluld need to be adjusted. It is very rare though and I only read about 3-4 cars that had this problem.
That being said if you want the most out of your A4 than a full tune (not just a shift point change) is needed.
Most people I talk to with MN6 just have the gears changed and they are happy. Most people I talk to with A4s get the gears changed and also opt to pay for a full tune to get more out of their car.
The choice is yours...
First - if you have a MN6 and you are changing gears than nothing has to be done.
Second - if you are changing the gears on an A4 than the Shift points only need to be adjusted a tune is not needed.
For the most that is all that is needed. Once in awhile there is a problem with rev limiter on the manuals that recently has come to my attention which woluld need to be adjusted. It is very rare though and I only read about 3-4 cars that had this problem.
That being said if you want the most out of your A4 than a full tune (not just a shift point change) is needed.
Most people I talk to with MN6 just have the gears changed and they are happy. Most people I talk to with A4s get the gears changed and also opt to pay for a full tune to get more out of their car.
The choice is yours...
Thread Starter
Burning Brakes
Joined: Jun 2004
Posts: 1,211
Likes: 0
From: Nesconset NY
St. Jude Donor '04 & '05
Hi all and thanks for the replies. I just ordered a predator so I can play around with the shift points. And yes I have an A4 the rear end will be changed some time next week so any suggestions to exact shift point changes
Thanks
Tom
Thanks
Tom
