TCI converter won't stay locked
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TCI converter won't stay locked
I put a TCI super street fighter in my 01 SS at the same time I did a cam and long tubes. Got it on the dyno today and it will not stay locked long enough to make a full pull. He ended up having to tune it with the converter unlocked. I guess I'll pull it and go with Yank or somebody.
#3
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None of the converter suppliers recommend Locked WOT pulls on single disk clutches. Yes, dyno operators do it to boost their numbers, but it is extremely risky and indeed may have ruined your converter. And even one WOT lockup on the track can ruin the clutch. WOT lockups should only be done with triple disk converters, which are much more expensive and heavy.
IIRC the TCI super street fighter (I had one) is a GM V6 converter modified to have a higher stall. It has an exceptionally small and weak lockup clutch.
EDIT: Since I'm certainly not a converter expert, I looked for supporting threads. I did find this one:
https://ls1tech.com/forums/automatic...erter-wot.html
There is a more recent thread of where some converters are cut apart so show the size of the lockup clutch.
IIRC the TCI super street fighter (I had one) is a GM V6 converter modified to have a higher stall. It has an exceptionally small and weak lockup clutch.
EDIT: Since I'm certainly not a converter expert, I looked for supporting threads. I did find this one:
https://ls1tech.com/forums/automatic...erter-wot.html
There is a more recent thread of where some converters are cut apart so show the size of the lockup clutch.
Last edited by mrvedit; 04-25-2013 at 10:06 PM.
#4
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I did the cam, converter, and longtubes at the same time and the converter never acted right and would lock and unlock in 4th. I just assumed it was the tune, but unfortunately it wasn't.
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The clutches in the Streetfighter series are way,
way too wimpy to take WOT torque locked. And
would need the tune (line pressure, force motor
table) worked over to even have a prayer.
way too wimpy to take WOT torque locked. And
would need the tune (line pressure, force motor
table) worked over to even have a prayer.
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#8
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Commanding lock-up and then doing a WOT pull on a dyno isn't the same as locking the converter in the middle of a WOT run down the track. Still, it's stressful on the clutch and it may not hold. Although it's true TCI clutches are weak, my guess is that your problem is more a need for tuning than a toasted clutch. Here's a thread that discusses the issue: https://ls1tech.com/forums/automatic...ight=unlocking
Last edited by RevGTO; 04-27-2013 at 09:34 PM.
#9
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I have the same converter and everything you just described is what my car was doing before the transmission blew. I had the 60 rebuilt stronger and the converter was great.. All those issues were resolved. Mine was also notorious for making like a grinding sound whenever the converter would try to unlock itself during regular acceleration.
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I have the same converter and everything you just described is what my car was doing before the transmission blew. I had the 60 rebuilt stronger and the converter was great.. All those issues were resolved. Mine was also notorious for making like a grinding sound whenever the converter would try to unlock itself during regular acceleration.