C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

TCC Lockup - Is this really true?

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Old Dec 23, 2010 | 07:41 AM
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Default TCC Lockup - Is this really true?

In a thread about the tcc I was just reading a member stated;

"Pete K (a construction worker with a hobby , no thanks)will confirm but only relevance I know of between TCC and trans is that in the early T700 ( pre '88?)
you must have lockup because you only get full fluid flow to the trans cooler when TCC is engaged.
Running a later T700 with no lockup is no different than running old style trans like TH400 that had no lockup.
Only thing that suffers is fuel economy."

Is this true? I had a thread where I was asking about driving without lockup in my 85 and nobody ever mentioned not having full fluid flow to the cooler if not in lockup.
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Old Dec 23, 2010 | 08:02 AM
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Originally Posted by Moon86
Is this true? I had a thread where I was asking about driving without lockup in my 85 and nobody ever mentioned not having full fluid flow to the cooler if not in lockup.
Posts # 16 and 18

http://forums.corvetteforum.com/c4-t...or-lockup.html
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Old Dec 23, 2010 | 08:25 AM
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rodj - Thanks for the point to the thread. I had planned to put a B&M plate trans cooler on this winter along with some heat shields where the exhaust runs along side the tranny. Now I think I'm also going to add a Derale deep pan that has the cooling tubes. And of course a trans temp gauge. Why on earth would GM restrict flow to the cooler? Makes no sense to me.
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Old Dec 23, 2010 | 11:25 PM
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Originally Posted by Moon86
rodj - Thanks for the point to the thread. I had planned to put a B&M plate trans cooler on this winter along with some heat shields where the exhaust runs along side the tranny. Now I think I'm also going to add a Derale deep pan that has the cooling tubes. And of course a trans temp gauge. Why on earth would GM restrict flow to the cooler? Makes no sense to me.
Why on earth does GM do a lot of what they do ?
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Old Dec 23, 2010 | 11:50 PM
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Originally Posted by Moon86
In a thread about the tcc I was just reading a member stated;

"Pete K (a construction worker with a hobby , no thanks)will confirm but only relevance I know of between TCC and trans is that in the early T700 ( pre '88?)
you must have lockup because you only get full fluid flow to the trans cooler when TCC is engaged.
Running a later T700 with no lockup is no different than running old style trans like TH400 that had no lockup.
Only thing that suffers is fuel economy."

Is this true? I had a thread where I was asking about driving without lockup in my 85 and nobody ever mentioned not having full fluid flow to the cooler if not in lockup.
Pete K. Knows his stuff with a Corvette 700R4 or a 4L60E Trans.

Dana at Probuilt Transmissions knows more than any transmission mechanic I have talked to on a telephone call.

They Both gave me lots of help and many great tips on rebuilding, modifying, and purchasing the correct parts to rebuild my original 87 Vert 700R4 Correctly the 1st time around.

I did all my own assembly, blueprinting, and remove and reinstalling work with my trans myself.

Cant thank Pete K. & Dana at Probuilt enough.

Construction worker or not, I am impressed with Pete K's knowledge and experience.

I am an Ex GM Master Mechanic, ASE Master Mechanic, and ASE Advanced Driveability. ASE's are Current and Good to go till 2014.

BR

Last edited by 87 vette 81 big girl; Dec 24, 2010 at 12:02 AM.
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Old Dec 24, 2010 | 12:10 AM
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Originally Posted by 87 vette 81 big girl
Pete K. Knows his stuff with a Corvette 700R4 or a 4L60E Trans.
Construction worker or not, I am impressed with Pete K's knowledge and experience.


korvette4u edited his personal opinion into my post helping him so it looks like I said it

http://forums.corvetteforum.com/1576279347-post9.html
http://forums.corvetteforum.com/1576276535-post8.html
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Old Dec 24, 2010 | 12:42 AM
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Originally Posted by vetteoz


korvette4u edited his personal opinion into my post helping him so it looks like I said it

http://forums.corvetteforum.com/1576279347-post9.html
http://forums.corvetteforum.com/1576276535-post8.html
I see. lol

Wonders of the internet and this forum.
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Old Dec 24, 2010 | 08:58 AM
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Originally Posted by 87 vette 81 big girl
Pete K. Knows his stuff with a Corvette 700R4 or a 4L60E Trans.

Dana at Probuilt Transmissions knows more than any transmission mechanic I have talked to on a telephone call.

They Both gave me lots of help and many great tips on rebuilding, modifying, and purchasing the correct parts to rebuild my original 87 Vert 700R4 Correctly the 1st time around.

I did all my own assembly, blueprinting, and remove and reinstalling work with my trans myself.

Cant thank Pete K. & Dana at Probuilt enough.

Construction worker or not, I am impressed with Pete K's knowledge and experience.

I am an Ex GM Master Mechanic, ASE Master Mechanic, and ASE Advanced Driveability. ASE's are Current and Good to go till 2014.

BR
Not only is Pete K impressive with transmissions , He"s also an expert at engine building....WW

Last edited by WW7; Dec 24, 2010 at 09:02 AM.
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Old Dec 24, 2010 | 09:28 AM
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Yeah, a new member such as yourself ( i.e. a newbie) should not write dispariging comments (Pete K) about long time forum contributors.
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Old Dec 24, 2010 | 09:33 AM
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Originally Posted by corvette95
Yeah, a new member such as yourself ( i.e. a newbie) should not write dispariging comments (Pete K) about long time forum contributors.
It was a technical error........... read posts above closely.

Previous Posts were clipped and borrowed.

He never bad mouthed Pete K.

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