LT1-LT4 Modifications 1993-97 Gen II Small Block V8

gear ratio/stall changes

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Old 06-28-2012, 07:26 PM
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Default gear ratio/stall changes

I am going from 2.73's to 3.73's and going from stock to a yank ss 3600rpm stall.

my question on the stall is am i going to run into the so called "stall wall" that ive read about people having issues with?

In tuner pro rt what exact tuning changes do i need to make to get the speedo reading right and keep my shift points right with the gear change?
Old 06-29-2012, 08:50 PM
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Yes you'll hit stall wall. I rely on my tuner gregrob to fix stuff like that.
Old 06-30-2012, 02:07 PM
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i guess none of said tuners are gona help me learn how to do my own tuning...

thanks for the heads up on the stall wall
Old 06-30-2012, 02:24 PM
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Not sure how to fix the stall wall but for the speedo I used tunercats or lt1edit. I don't remember exactly. But it was in one of the top menu bars. Super easy to do. Maybe grab one of those programs. I'm not familiar with tunerpro.
Old 07-03-2012, 12:26 PM
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Originally Posted by nomoneyz
Not sure how to fix the stall wall but for the speedo I used tunercats or lt1edit. I don't remember exactly. But it was in one of the top menu bars. Super easy to do. Maybe grab one of those programs. I'm not familiar with tunerpro.
yea tunerpro is a free tuning software..

Is there seriously nobody on this forum that can help me out. i cant imagine that its all that hard to change gear ratios and tune the stall wall out?
Old 07-03-2012, 01:34 PM
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Originally Posted by englundjd
yea tunerpro is a free tuning software..

Is there seriously nobody on this forum that can help me out. i cant imagine that its all that hard to change gear ratios and tune the stall wall out?
It's probably pretty easy IF one knows what they are doing...but if they know what their doing like anything else, time is $$$$ lol. Why take time to teach others to do it for free when they can charge $100 a pop for 10 minutes of work? So they can put themselves out of business or listen to people bitch when the tune is not just right? Can't really blame them...capitalism at it's finest.
Old 07-03-2012, 02:44 PM
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Originally Posted by englundjd
I am going from 2.73's to 3.73's and going from stock to a yank ss 3600rpm stall.

my question on the stall is am i going to run into the so called "stall wall" that ive read about people having issues with?

In tuner pro rt what exact tuning changes do i need to make to get the speedo reading right and keep my shift points right with the gear change?
https://ls1tech.com/forums/pcm-diagn...-wall-fix.html
Heres a link, i used as a reference ONLY.
Please read carefully , and use at your own risk.
It took me over a month to figure out how to use my tunercat, for shifting issues.
With tuner cats, under (tools), the first item is "speed calibration"< be sure,you have correct tire size,rear ratio, and car type, and it does it for you.Speedo Only!
Shift points and such, its just easier to get a mailorder tune.
Good Luck
https://ls1tech.com/forums/automatic...tm-w-pics.html

Last edited by cookietime; 07-03-2012 at 02:48 PM. Reason: more info
Old 07-03-2012, 04:13 PM
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The new tunercat update does the shift tables for you, doing simple math and going off your present tables.

The links posted above pretty well get you there.
Old 07-03-2012, 04:57 PM
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alright thanks for the links guys! time to get readin



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