Allow TCC lockup during shift
Racer
Joined: Mar 2004
Posts: 338
Likes: 0
From: Lancaster Ohio
Re: Allow TCC lockup during shift (gojo)
I asked this same question on LS1Tech a while back and got 1 response I think so I'm guessing no one knows. The one response I did get said he wasn't sure but had been to the track with it set to true and then set to false and saw no difference in the quarter.
Le Mans Master
Joined: Sep 2003
Posts: 6,386
Likes: 0
From: Just a little outside San Antonio, Texas
Re: Allow TCC lockup during shift (gojo)
This sounds like a darned good question for carputing.com's LS1 Edit forum.
I'd like to know the answer to this question myself. The user's manual doesn't do a very good job at all of describing what these setting changes might (or might not) do for you.
I'd like to know the answer to this question myself. The user's manual doesn't do a very good job at all of describing what these setting changes might (or might not) do for you.
Thread Starter
Melting Slicks
Joined: Feb 2002
Posts: 2,613
Likes: 0
From: Winston Salem NC
Re: Allow TCC lockup during shift (ArmyVette)
This from Chris at Slowcar.
A4 TCC Tab - Allow TCC lock during shift:
This determines whether the TCC can be locked through a shift (if locked before) or if the computer will force disengagement.
I still don't understand.
A4 TCC Tab - Allow TCC lock during shift:
This determines whether the TCC can be locked through a shift (if locked before) or if the computer will force disengagement.
I still don't understand.
Racer
Joined: Mar 2004
Posts: 338
Likes: 0
From: Lancaster Ohio
Re: Allow TCC lockup during shift (gojo)
I'm guessing having it unlocked during the shift will just save some wear and tear on the tranny. I set mine to true on my last flash but am gonna return to false on my next flash since I've noticed no gains from it.
Supporting Vendor
Joined: Jun 2004
Posts: 692
Likes: 13
Re: Allow TCC lockup during shift (gojo)
It does just that.
If set to true, the converter will remain locked during a shift.
GM used this mostly on the heavy duty truck calibrations with the 4l80E.
You have to pay attention to the apply/release MPH vs TPS tables in 4th gear.
If the converted is told to lock @30MPH in third, but not lock until 45MPH in 4th, the conveter will still unlock during the gear change until the 4th gear MPH qualifications are met.
Ken
If set to true, the converter will remain locked during a shift.
GM used this mostly on the heavy duty truck calibrations with the 4l80E.
You have to pay attention to the apply/release MPH vs TPS tables in 4th gear.
If the converted is told to lock @30MPH in third, but not lock until 45MPH in 4th, the conveter will still unlock during the gear change until the 4th gear MPH qualifications are met.
Ken
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