3.46 gears & rev limiter
Thread Starter
Instructor
Joined: Jul 2001
Posts: 108
Likes: 0
From: Cincinnati Ohio
3.46 gears & rev limiter
Hi all,
I've got a problem I hope you can help me with. I just had 3.46 gears installed in my 2002 A4. They replaced the 3.15 that came with the car. Prior to having the gears replaced I had Ed Wright reprogram my pcm. He did a great job, by the way.
The problem is that today I went to the strip and hit the rev limiter between 2nd and third gear. Evidentally the RL is set at about 6200 rpm. At least that is where the car faltered. I made two runs and the same thing happened both times. The car pulled very well through first and second gears but when it went to shift into third the car faltered. It was my understanding from some other posts on this forum that there should not be a problem when switching from 3.15 to 3.46 gears.
The question is, has anyone else had this problem? And, if so, what can I do about it? To be sure I will be contacting Ed, but I would also appreciate your advise as well.
Thank you all.
I've got a problem I hope you can help me with. I just had 3.46 gears installed in my 2002 A4. They replaced the 3.15 that came with the car. Prior to having the gears replaced I had Ed Wright reprogram my pcm. He did a great job, by the way.
The problem is that today I went to the strip and hit the rev limiter between 2nd and third gear. Evidentally the RL is set at about 6200 rpm. At least that is where the car faltered. I made two runs and the same thing happened both times. The car pulled very well through first and second gears but when it went to shift into third the car faltered. It was my understanding from some other posts on this forum that there should not be a problem when switching from 3.15 to 3.46 gears.
The question is, has anyone else had this problem? And, if so, what can I do about it? To be sure I will be contacting Ed, but I would also appreciate your advise as well.
Thank you all.
Team Owner
Joined: Oct 2001
Posts: 46,766
Likes: 5
From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Re: 3.46 gears & rev limiter (tgeers)
I changed from 2.73 to the 3.42 initially I did not install the new program. Hit the limiter every time I got on it hard. New program raised the limiter up to 6600 rpm problem solved. Talk to Ed he will have to tweak the program. I am however suprised that when he did the initial program he did'nt raise the limiter.
Bob
Bob
Burning Brakes
Joined: Aug 2001
Posts: 1,206
Likes: 21
From: Roswell GA
Re: 3.46 gears & rev limiter (tgeers)
I did the change from 3.15's to 3.42's with no problem. However I have STOCK programming. I'm sure Ed raised you shift points when he did the first reprogram and thus your hit the limiter now. I t should be quite simple for Ed to readjust to the new gears rather than go back to stock 3.15 code.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Re: 3.46 gears & rev limiter (goldman)
I just had 3.46 gears installed in my 2002 A4. They replaced the 3.15 that came with the car. Prior to having the gears replaced I had Ed Wright reprogram my pcm. He did a great job, by the way.
I have 3.42's in my A4 and am still running with the factory 3.15 program.
My WOT shifts happen at 5900 to 6000; just short of the rev limiter.
Race Director
Joined: Aug 1999
Posts: 15,466
Likes: 0
From: GARDENA Ca, State Of Konfusion
St. Jude Donor '05
Re: 3.46 gears & rev limiter (16Again)
I changed from 2.73 to the 3.42 initially I did not install the new program. Hit the limiter every time I got on it hard. New program raised the limiter up to 6600 rpm problem solved. Talk to Ed he will have to tweak the program. I am however suprised that when he did the initial program he did'nt raise the limiter. Bob
Racer
Joined: Apr 2001
Posts: 314
Likes: 0
From: Plano Texas
Re: 3.46 gears & rev limiter (wallstAL)
My rev limiter was also raised to 6600 when I went from the 2.73 to 3.42.[/QUOTE]
Any problems with the rev limiter being up to 6600? That's not a bit high, just asking because I definately don't know.......
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Team Owner
Joined: Oct 2001
Posts: 46,766
Likes: 5
From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Re: 3.46 gears & rev limiter (Lil Red)
My rev limiter was also raised to 6600 when I went from the 2.73 to 3.42.
Any problems with the rev limiter being up to 6600? That's not a bit high, just asking because I definately don't know.......
Any problems with the rev limiter being up to 6600? That's not a bit high, just asking because I definately don't know.......
Bob
Drifting
Joined: Oct 2000
Posts: 1,598
Likes: 1
From: Plano TX
Re: 3.46 gears & rev limiter (90 droptop)
I run 3.42's in mine. The shift points are controlled by speed (although you can program via rpm). With the lower gears, your mph is up compared to the rpm, hence your hitting the rev limiter. You need to have the WOT shift point speed for each gear lowered to cause the car to shift earlier. Find a shop with LS1 Edit.
If you need more help IM me.
If you need more help IM me.
