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Old 06-10-2022, 09:08 PM   #29
KingLT1


 
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Quote:
Originally Posted by ZL1Atlanta View Post
It is fine if you shift at a lower RPM. It's when you take it up to 6K+ and then shift during a burnout that really beats on them. I start in second, take it up just enough to get the tires turning, and then go to third to finish the burnout. It takes WAY too long to get a proper burnout in second gear.
I agree with that.
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Old 06-11-2022, 12:06 PM   #30
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@KingLT1

Turns out the trans tune you helped me with already had the TUDU 2nd gear launch set up, but the shift points were too high for me still for 1-2 and 2-3. I assume because of my looser converter. So I just made the TUTD match what I had for WOT shift mphs and it works great!
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Old 06-11-2022, 09:27 PM   #31
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Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP
Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA
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Old 04-25-2023, 06:55 PM   #32
ZL1...SON
 
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I am curious about a couple things with this as I am starting to do some tuning on my 21 ZL1 A10. I have read in one place that both the RPM table and the MPH table have to be fine tuned due to it looking at both tables and both have to be satisfied before it will shift. I have read in this thread that the RPM table doesn't matter, and just the MPH table needs to be dialed in. Can anyone clear that up?

Anyone care to share their MPH tables? Currently I have my set to upshift at...

1>2 32mph
2>3 58mph
3>4 84mph
4>5 99mph
5>6 120mph
6>7 149mph
7>8 181mph
8>9 250mph
9>10 280mph

It'll be a couple weeks before I'm able to test those speeds, so I was hoping to get some input before I load it in hopes of skipping a little trial and error.
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Old 04-25-2023, 07:24 PM   #33
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The TCM must see both conditions (MPH First, then RPM second) to be satisfied before commanding the shift. So, if you set the WOT MPH shift point, do so just before the RPM you want it to shift at, because of the order in which it works.
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Old 04-29-2023, 05:05 PM   #34
ZL1...SON
 
Drives: 2021 Camaro ZL1
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Quote:
Originally Posted by Joshinator99 View Post
The TCM must see both conditions (MPH First, then RPM second) to be satisfied before commanding the shift. So, if you set the WOT MPH shift point, do so just before the RPM you want it to shift at, because of the order in which it works.
Hmm. I loaded my tune and tried it out today but it did not appear to be following this logic. I had the Shift mph set to 58mph for 2>3 shift and RPM at 64
6,600rpm, but it appeared to shift at about 6,000rpm each of the 3 times I tried this. I will have to find a mph/speed/gear calculator to see what that works out to MPH wise as I didn't catch what the MPH was to see if it lined up with the 58mph or not. I guess it is also possible my tach was not keeping up at all, but unfortunately I wasn't logging it, so I can't go back and look.
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2021 Camaro ZL1 Satin Steel Metallic
Rotofab CAI, Banks Idash, AEM X series wideband, CSP 2" headers, Jet hot 2500 ceramic coating, DSX Flex Fuel Sensor, DMS Fender Tank, Velossatech Big Mouth, JMS Fuel Booster, MPI Billet Lid, ECM & TCM tuned by Elite Tuned, Atturo 315 AZ850DR

On the way: Jokerz race port, 2.30" upper, 107mm Soler TB, 160°F Billet DMS, Big Gulp, LPE Big Bore HPFP, XDI +30
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Old 04-29-2023, 05:15 PM   #35
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Drives: 2021 Camaro ZL1
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Found a calculator and 58mph should be 6500, so neither of those really line up with the 6,000rpm 2>3 shift that i saw... I'll have to go back and look at my tune to make sure I didn't fat finger a number. I'll be sure and log it as I don't think it was the tach not keeping up. It sure felt and sounded like it short shifted too

Is there an learning/adaptive process that could be happening and may take a few drives to line itself out?
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2021 Camaro ZL1 Satin Steel Metallic
Rotofab CAI, Banks Idash, AEM X series wideband, CSP 2" headers, Jet hot 2500 ceramic coating, DSX Flex Fuel Sensor, DMS Fender Tank, Velossatech Big Mouth, JMS Fuel Booster, MPI Billet Lid, ECM & TCM tuned by Elite Tuned, Atturo 315 AZ850DR

On the way: Jokerz race port, 2.30" upper, 107mm Soler TB, 160°F Billet DMS, Big Gulp, LPE Big Bore HPFP, XDI +30

Last edited by ZL1...SON; 04-29-2023 at 05:39 PM.
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