C6 Lock up torque converter.

[Darrin Tosh]

Has anyone tried the Diesel C6 Torque Converter from Monster Trans that has the optional Lock Up feature. Its $450 for the converter, and $535.00 extra for the lock up option. Here is the link:

C6 Torque Converter Heavy Duty Low Stall Towing Diesel Torque Converter

www.monstertransmission.com

 

[IDIBRONCO]

I didn't see where the description mentioned a locking option. It it does lock, that's a great idea. I've just bought a reduced slippage convertor to use.

 

[KansasIDI]

I didn't see where the description mentioned a locking option. It it does lock, that's a great idea. I've just bought a reduced slippage convertor to use.

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[IDIBRONCO]

I see it now. I only saw the low stall diesel part.

 

[XOLATEM]

I intend to say this in the nicest way possible...but I always have been blunt...

and...that tendency has always got me into trouble...but...honesty is the best policy...

I am going to say that I am sorry to bust your bubble right now before I shoot my mouth off...

Here goes...and like Larry The Cable Guy always says..."Dear God I am sorry...."

There is no way right now to install what is commonly accepted as a 'lock-up' torque convertor in a C-6 transmission...and get it to work as generally expected....without major re-engineering of the input shaft, pump, case and valvebody....

That advertisement is a mistake...probably by an IT 'pro' that doesn't know anything about transmissions and torque convertors.

On a diesel application the best you can do with a C-6 is to get the lowest stall possible to make use of the torque curve you have at an extremely low (compared to gas engines) RPM range...

If someone is talking about 'lock-up' in reference to a C-6 then they must be referring to an extremely low RPM 'coupling point' where both the impeller and turbine are spinning roughly the same speed under load...

There is no 100% mechanical locking together of both elements at any time...

Now...what can happen is that the component that is splined to the transmission input shaft...it's rotational speed can exceed that of the housing that is bolted to the engine...when you are coasting...especially downhill...

But...

There is no 100% mechanical locking together of both elements at any time...

I hope we can put this fallacy (that you can make a 'lock-up' torque convertor work in a C-6..) to bed, now...

There, I said it...

And to top it off...I'll bet you...uh...your first welding project....

Well...it was better than betting your first-born...

Just my unasked-for .02...

P.S. If you want a true lock-up torque convertor in your truck...the best way to go...(in my opinion) is a version of the E4OD...if you have ever been inside of one...it is a big, beautiful unit...that I would be proud to drive...if I had built it and had intimate knowledge of every part I put into it...

Ok...now I am done...

 

[DaveBen]

How about lock up cup holders? Were can you get them? C-6 or E4OD, I don't care.

 

[Nero]

How about lock up cup holders? Were can you get them? C-6 or E4OD, I don't care.

Just use everyone's favorite cup holders, the one from a 2002 jetta, one sharp turn and you'll be wearing that big gulp!

 

[Cant Write]

@XOLATEM has invisible holding cup holders on his dash!! A conveyor belt to transport, and an open window to dispose of the contents and biodegradable cup..... although I think his electronics (driving) sometimes goes into “tilt” mode like the old pinball machines

On another note, I’m a blunt person too, and tell it like I see it. And the people who don’t know me think I’m an A-hole

 

[XOLATEM]

goes into “tilt” mode like the old pinball machines

Funny you would mention that...I was thinking recently about finding an old pinball machine to fix up...

A phenomenal score would be one that is just like the machine I used (on my time off...sure...) when I worked at a gas station.

There was a gambling pinball machine in the back room and it paid off occasionally...the thing had a 'reputation' and a lot of the locals lined up to try their luck...

That is one thing that I would bring back from the 70's...I wish I could remember which one it was....

It was suitable for a drink-holder, as well....

 

[Cant Write]

On a serious note:

@Darrin Tosh why do you want a lockup converter on your C6?

@XOLATEM how much slip at cruise is their on a low stall C6 converter? 100-200 rpm?

If only that much I wouldn’t wanna potentially add a weak point to a robust trans.

Also, not sure if Ford did. But Chevy did make a TH-350 and a TH-350c. The “c” denotes lockup. Based on what Xolatem said above, the input shafts must be different.

 

[Clb]

Once upon a time, the drag race guys toyed with
Clutch Converters, not the same as a lockup solenoid ...
That's all I got.

 

[XOLATEM]

how much slip at cruise is their on a low stall C6 converter? 100-200 rpm?

Damifino....for me to answer that truthfully we would need a test vehicle with a C-6, a super-accurate tach, an input speed sensor and a meter that would measure the sensor pulses and translate that to RPM...

Actually...come to think of it....if we had a manual valve body to take off in 3rd range and a VSS and a meter that would measure the sensor pulses and translate that to RPM...we could give any torque convertor a 'truth-in-advertising' test...

the input shafts must be different.

on a 350C...yes....input shaft, pump, case, and valvebody...as well as the torque convertor.

not sure if Ford did

Ford did take a basic C-4 and convert it to mechanical lock-up...but it was not long-lived...the units would fail spectacularly....and the convertor rebuilders would disable the lockup function...

The cupholders were left alone, though....