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

HALP! Trouble setting up shift points

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Old Jul 23, 2014 | 06:39 PM
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Default HALP! Trouble setting up shift points

So I thought I had this all figured out, but I guess I still need to figure out my 2-3 shift. At the track I would shift fine from 1-2, but it would hit the rev limiter on the 2-3 shift. I've adjusted every table I can think of in TunerPro RT, but I guess I don't have everything set just right. If anyone can give me some help figuring this out I really appreciate it. My setup is an A4, with a 3000 RPM stall, and 4.10's in the back.
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Old Jul 23, 2014 | 08:48 PM
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1. What are your kickdown normal mode up/down mph shiftpoints?
2. What are your kickdown normal mode shift rpm thresholds?
3. What is your fuel cutoff rpm for 1st and 2nd-6th gears?
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Old Jul 23, 2014 | 09:16 PM
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Originally Posted by bowtienut
1. What are your kickdown normal mode up/down mph shiftpoints?
2. What are your kickdown normal mode shift rpm thresholds?
3. What is your fuel cutoff rpm for 1st and 2nd-6th gears?
I have adjusted some of my settings, but I haven't flashed them to the car. These are what I've come up with that will hopefully fix the issue. I've attached screenshots with my tables.
Attached Thumbnails HALP!  Trouble setting up shift points-fuel-cut-off.png   HALP!  Trouble setting up shift points-kickdown-mode.png   HALP!  Trouble setting up shift points-kickdown-normal-threshold.png   HALP!  Trouble setting up shift points-normal-mode.png  
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Old Jul 23, 2014 | 09:30 PM
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Not knowing your tire size and not doing the math, I can't be sure you're at 57 mph when it's time for the 2-3 shift. I'd bring that 2-3 kickdown upshift mph threshold down to 50 mph. There's no detriment to setting it lower; I like to keep them well below the actual, so I'm always certain of triggering the shift by rpm. If it still hits the limiter before the 2-3 shift after that adjustment, then I'd say your 3-4 clutches are on their way out.

Last edited by bowtienut; Jul 24, 2014 at 05:10 PM.
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Old Jul 24, 2014 | 03:10 PM
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Try your 1>2 MPH at 25, your 2>1 MPH at 24, and your 2>3 MPH at 53, your 3>2 MPH at 52. You should then be shifting by RPM at about 6000, depending on how fast your car is. If that does'nt get it, you probably need the 3-4 clutch pack looked at.
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Old Jul 24, 2014 | 07:30 PM
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Thanks for the help Ed. I'll get those changed and flash the car tomorrow and see what it does. I'll be back with an update.
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Old Jul 25, 2014 | 05:03 PM
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Update! I just flashed the tune with the shift points Ed suggested and it's perfect. The 2>3 is smooth and quick. I haven't data logged yet but if the speedo is anything to go off of it shifts right at about 70 (which is perfect for my 6300 rpms redline). I'll data log later to be sure but I'm just happy it doesn't bounce of the rev limiter anymore. Now maybe I can get her into the 12's with ease.
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