TC Lock w/ H&S

[reighnman]

How much more wear is expected on the TC lock-up clutch when locking up in 4th + 5th? Obviously it's great for efficiency when stuck behind someone doing 45 but just wondering how fast it will wear out the clutch.

Assuming it's locking up at least twice as much when set to lock in 4th+5th, how long does the lock-up clutch typically last in a TC?

[travisH3]

Good question. I also have been wondering that. I run schedule 1m so it's locking alot 4th and 5th, I like the feel of it but I don't know if the torque converter likes it haha. and using this is it hurting anything else in the tranny? So if we wear the tq converter out, will just buying an upgraded one fix the issue and a stronger tq converter?

[superdutydixie]

This is a good question......

[Refugio]

I thought it was less wear(better for it) when the TC is locked. Or no wear when locked as it is completely engaged and no slippage.

[reighnman]

I just assumed that when the TC isn't locked there isn't any physical slippage on the lock-up clutch itself thus no wear on the TC since it's just lack of hydraulic force on the turbine?

Basically with locking up in 4th, I'm wondering if the early lock-up (especially in S1L) wears on the lock-up clutch more than S1M/S2L since the flywheel/clutch aren't as closely matched.

[pops250]

I wonder the same thing hope someone will have an answer.

[kevinah]

When I tried S2 low and medium, I felt like the constant in and out of 4th to 5th gear and back to 4th and the slip feeling I was getting wasn't good. I could be wrong, I'm certainly not an expert. Schedule 1 just seemed to be much more of a positive shift with no slip. Now I'm wondering also.........


Sent from my Autoguide iPhone app

[travisH3]

I stayed with s1m because it felt most like stock. You could feel the tq converter lockup in stock

[reighnman]

Originally Posted by travisH3

I stayed with s1m because it felt most like stock. You could feel the tq converter lockup in stock

Yea mine bogs pretty hard under light acceleration during 4th lockup, just figured I'd ask before going back to s1m or s2l

[turbo kidd]

In theory the lock-up is a good thing and should actually help the longevity of the tranny. However, you will hear the debate go both ways. I love the 4th & 5th lock-up. Years ago when I put my ATS tranny in my 5.9, I ran the trans command and used the lock-up feature. That tranny held 650+ HP for over 150,000 miles.