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Old 06-15-2014, 10:46 PM   #1
omgitsmikeyC
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Torque converter issues

I bought a 3500 stall used converter from a sponsor speed shop on this forum, and am experiencing issues almost immediately after install. I am getting a "grinding" feel and power loss at 22mph and more noticeably at 42 mph if I am cruising at that speed or going up hill. It does not appear otherwise but very rarely at 62mph. I have not beaten on her as I have converted it to a stock ls3 while I get a cam issue sorted out (phaser culprit). What options do I have and how can I get a solid "yes that's it" judgement before I pursue this converter issue.
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2012 2SS 45th Anniversary/Auto
Modified- intake, headers, NPP exhaust, 1LE diffuser, catch can,ls3 conversion, LG cam, Yank pro torque converter, and minor body details added

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Old 06-16-2014, 10:25 AM   #2
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Hey bud just wrote back to you... If its happening at the lockup speeds that has been a known issue if you have stock tune because the TCC apply ramp / pressures need to be raised and sometimes the TCC lockup speeds need to be moved.
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Old 06-16-2014, 11:44 AM   #3
thahemp
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There you have it ^.
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Old 06-16-2014, 02:12 PM   #4
omgitsmikeyC
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Awesome, thanks so much!
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2012 2SS 45th Anniversary/Auto
Modified- intake, headers, NPP exhaust, 1LE diffuser, catch can,ls3 conversion, LG cam, Yank pro torque converter, and minor body details added

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Old 06-18-2014, 09:45 AM   #5
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Add a little more to this... Need to make sure the desired slip tables in the TCC setting are zeroed out. I suggest to monitor the TCC slip when driving to make sure you are getting next to zero. Let us know what you find out.

Chris
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Old 07-07-2014, 03:28 PM   #6
omgitsmikeyC
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The engagement tables and speeds had to be adjusted as Matt recommended. I no longer get shudder or slipping, but my tuner also said he isn't putting the converter into full lockup either. All is well now .. some times at the track will be coming soon.
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2012 2SS 45th Anniversary/Auto
Modified- intake, headers, NPP exhaust, 1LE diffuser, catch can,ls3 conversion, LG cam, Yank pro torque converter, and minor body details added

Metroplex Muscle Car Club
Lonestar Camaro Club
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