3.42's Installed and Programming....Question
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From: Bellmore NY
3.42's Installed and Programming....Question
I kept the stock converter since the car is only a month old and don't want to have any probelems with the warranty down the road just in case.
I am still breaking in the new gears so I have not had the car at WOT yet. Therefore I have a question......
At WOT, should I expect gear shifts at about 5800-5900 rpm's? I assume this is the case but just wanted to check with you experts :D
By the way, the car feels like it's got a lot more punch even though I am taking it easy.
2002 Black/Black A4, 3.42's
No other Mod's and none planned (for now :) )
I am still breaking in the new gears so I have not had the car at WOT yet. Therefore I have a question......
At WOT, should I expect gear shifts at about 5800-5900 rpm's? I assume this is the case but just wanted to check with you experts :D
By the way, the car feels like it's got a lot more punch even though I am taking it easy.
2002 Black/Black A4, 3.42's
No other Mod's and none planned (for now :) )
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From: Bellmore NY
Re: 3.42's Installed and Programming....Question (C5Finally)
By the way, forgot to mention that the work was done by the Vette Doctors and I they did a fantastic job (I took the day off from work and watched the whole thing).
Also, I had the stock 2.73's which is why I am noticing a difference even now when I am not going at WOT.
Also, I had the stock 2.73's which is why I am noticing a difference even now when I am not going at WOT.
Le Mans Master
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From: Coral Springs Florida
Re: 3.42's Installed and Programming....Question (C5Finally)
Congrats on the new car :cheers: The shift points are dictated by the programming.I assume vette Doctors had the PCM programmed.I have the 3.42's and a Pro Torque 2800 converter and programming was done by TTS powerloader.The PCM programming is is respnsible for all your shifting points and firmness.My car shifts at 6300rpm at WOT.Yours may be diffefent..find out fron the programmer what they set the shift points at.It's usually a speed ..not an rpm range.On the other hand your programmer may have raside you rev limiter as well.You need to ask these question of the installer.
Either way ,your on the right track :yesnod: Your next mods should be Intake and exhaust.Shouldn't be any warranty issues there and the car REALLY needs the help! :chevy
Either way ,your on the right track :yesnod: Your next mods should be Intake and exhaust.Shouldn't be any warranty issues there and the car REALLY needs the help! :chevy
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From: S.W. Ohio. . . . . . NRA Life Member
Re: 3.42's Installed and Programming....Question (vstella)
The shift points are dictated by the programming.I assume vette Doctors had the PCM programmed.
My 3.42 upgrade (using the stock TC with no reprograming done) gives shifts between 5900 and 6000 rpm. :D
[Modified by Mike Mercury, 3:28 PM 3/13/2002]
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From: Bellmore NY
Re: 3.42's Installed and Programming....Question (Mike Mercury)
Thanks guys:
Vstella - Your A4 is shifting at 6,300 RPMS's. Has your Rev limiter been raised? If so to what level? Sounds like you are getting some awesome results from your machine. But then again you got some pretty cool mods there.
Mike Mercury, Yes the Vette Doctors did the reporgramming for the shift points, etc. I just wanted to make sure that for a car that is set to a rev limit of 6,000, that my shifts should be occurring at about 5,800-5,900. It sounds like you are squeezing ever last ounce of each gear by getting your shift points to 6,000. Nice work :D
:cheers:
Vstella - Your A4 is shifting at 6,300 RPMS's. Has your Rev limiter been raised? If so to what level? Sounds like you are getting some awesome results from your machine. But then again you got some pretty cool mods there.
Mike Mercury, Yes the Vette Doctors did the reporgramming for the shift points, etc. I just wanted to make sure that for a car that is set to a rev limit of 6,000, that my shifts should be occurring at about 5,800-5,900. It sounds like you are squeezing ever last ounce of each gear by getting your shift points to 6,000. Nice work :D
:cheers:
Le Mans Master
Joined: Nov 2000
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From: Coral Springs Florida
Re: 3.42's Installed and Programming....Question (C5Finally)
Yes the rev limiter was raised to 6600 by Steve Cole at TTS.The programming is the secret to a well tuned motor.As you make your mods you will need to compensate for some of the changes. The PCM WILL learn but for radical changes programming is a must.I'm a firm believer that the LS1 has very good potential for some real power without going into the engine..I think I have achieved that!
My best suggestion is to follow the Intake/Exhaust rule...Get it in as fast and as cold as you can, then get it out as fast as you can..IMO..For me it's worked:D All my mods have been documented with dates and pics for each mod...maybe it will help..Enjoy!:D
My best suggestion is to follow the Intake/Exhaust rule...Get it in as fast and as cold as you can, then get it out as fast as you can..IMO..For me it's worked:D All my mods have been documented with dates and pics for each mod...maybe it will help..Enjoy!:D
Burning Brakes
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From: Roswell GA
Re: 3.42's Installed and Programming....Question (Mike Mercury)
Hey Mike Mecury - 2.73 guys could get a factory reflash to 3.15's ($65) and then just use the 3.42's. Would turn out the same as yours.
I do think that you should point out that your shift points did move up higher after the gear swap than they were before. They just did not exceed the rev limiter and you were happy with the new points. To have kept the exact same rpm's at each shift you would have need to reprogram. But because you were happy with the "new" set up you did not and are happier because of it (higher shift points). :yesnod:
I do think that you should point out that your shift points did move up higher after the gear swap than they were before. They just did not exceed the rev limiter and you were happy with the new points. To have kept the exact same rpm's at each shift you would have need to reprogram. But because you were happy with the "new" set up you did not and are happier because of it (higher shift points). :yesnod:
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From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Re: 3.42's Installed and Programming....Question (C5Finally)
I just did the 2.73 to 3.42 swap as well. Shift is roughly 6200 while stomping on it. As the car increases speed (Shifting into high gear from a ninety mph start. The shift is almost 6600 rpm at about 145 - 150 mph) The rev limiter has been increased to 6600 rpm via a SuperChips custom program. The stock converter has been left in and it's great. Transgo shift kit and new converter will be the next mods when cash is available. :D
Bob
Bob
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From: S.W. Ohio. . . . . . NRA Life Member
Re: 3.42's Installed and Programming....Question (16Again)
16Again,
I am glad you posted your results; we all suspected rev limiter problems with the wide of change you made (2.73 to 3.42) and your findings proved correct.
Am I correct in assuming that the only program change you made so far was the raising of the rev limiter (and no shift point changes for now)?
How many miles since the 3.42? Have you thrown any codes?
KingTut,
you and I must be twins; I was thinking the same thing.... wondering if those wanting their 3.42 from the 2.73 could just have the dealer reprog the PCM to the 3.15 and (using the stock TC) doing what I did, but in a roundabout way?
My local dealer quoted my $60 to reprog the PCM (to a factory available carrier ratio).
Hmmmmm; interesting....... :yesnod:
[Modified by Mike Mercury, 11:13 PM 3/13/2002]
I am glad you posted your results; we all suspected rev limiter problems with the wide of change you made (2.73 to 3.42) and your findings proved correct.
Am I correct in assuming that the only program change you made so far was the raising of the rev limiter (and no shift point changes for now)?
How many miles since the 3.42? Have you thrown any codes?
KingTut,
you and I must be twins; I was thinking the same thing.... wondering if those wanting their 3.42 from the 2.73 could just have the dealer reprog the PCM to the 3.15 and (using the stock TC) doing what I did, but in a roundabout way?
My local dealer quoted my $60 to reprog the PCM (to a factory available carrier ratio).
Hmmmmm; interesting....... :yesnod:
[Modified by Mike Mercury, 11:13 PM 3/13/2002]
Team Owner
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From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Re: 3.42's Installed and Programming....Question (Mike Mercury)
16Again,
I am glad you posted your results; we all suspected rev limiter problems with the wide of change you made (2.73 to 3.42) and your findings proved correct.
Am I correct in assuming that the only program change you made so far was the raising of the rev limiter (and no shift point changes for now)?
How many miles since the 3.42? Have you thrown any codes?
I am glad you posted your results; we all suspected rev limiter problems with the wide of change you made (2.73 to 3.42) and your findings proved correct.
Am I correct in assuming that the only program change you made so far was the raising of the rev limiter (and no shift point changes for now)?
How many miles since the 3.42? Have you thrown any codes?
Bob
Drifting
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From: Tupelo Ms
Re: 3.42's Installed and Programming....Question (16Again)
SuperChips only raised the rev limiter from 6200 to 6600 rpm. Just about 2000 butt kickin miles. Yes I threw codes before the program change. I don't recall the codes but, what it meant was the converter was not working with the new rear gears. Shifting was so hard after about 100 miles that going from 1st to 2nd gear just about snapped my neck and that was just about 800 rpm. The car now is flawless. Since the programming I have not thrown any codes. :D
Hey Now:
With just the rev limiter being raised and no other programming, I don't see how your car shifts right?? :crazy:
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From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Re: 3.42's Installed and Programming....Question (barryscott)
Beats the heck outta me. But what a difference. I'll give a call today and find out what exactly was changed and post again tonight.
Bob
Bob
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From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Re: 3.42's Installed and Programming....Question (barryscott)
Got the info on the program. Shift points were adjusted as was the line pressure increased for firmer shifts. (Guess that explains why it shifts so well now.) :D
Bob
Bob
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From: S.W. Ohio. . . . . . NRA Life Member
Re: 3.42's Installed and Programming....Question (16Again)
Shift points were adjusted
Glad it all worked out for you. I could imagine your SOTP increase was extremely noticeable :)
Team Owner
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From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Re: 3.42's Installed and Programming....Question (Mike Mercury)
Glad it all worked out for you. I could imagine your SOTP increase was extremely noticeable :)
Bob