My ATS transmission thread. 2 hours and 16 posts later......

[KatDiesel]

When I see my transmission lock up its never more then 125rpm... I have said several times it won't lock up under WOT, and it won't generally lock up until I let off.



Maybe I am missing something. I checked it on the way to work and on the way home. With overdrive off. Never more then 125rpm drop. I get going way too fast with overdrive on... . in 35mph zone. Mainly it felt like it locks up when I am back at 1/4 throttle. Full throttle it won't lock up as near as I can tell. 3/4 throttle, same.



Be happy to let someone ride with me in my truck and see for themselves. Kinda dangerous to be doing it alone alot around town, i get going way to fast to stare at the tach.

 

[JConley]

Hey Kat... It might be a new concept, but have you thought about testing this on the highway??? I know they have them in NE, and it should be safe because there is nothing to hit even if you go off the road.

 

[KatDiesel]

Originally posted by JConley

Hey Kat... Got any highways in your state?

Yes actually. Only problem is its 60mph with east bound I80 under construction at night and 50mph. On the way home this morning too much traffic. and they all go too slow.







I prefer to look at lock up with overdrive off. Easier for me to see.



On the highway with overdrive on I never notice it because its generally happening the same time as it shifts to 4th.



Maybe we ain't comparing the same things? Tell em what or how to compare? On the highway I'm upto 80mph+ or so getting on the onramp. Thats with COMP in Level II. Its just the way I drive.



A good part of Texas has nuthing to hit off road either. Yes I am from there.

 

[Ethdee]

My transmission has never locked up.

 

[KatDiesel]

Originally posted by Ethdee

My transmission has never locked up.

Wiseguy!



Actually it lockes up everytime you let out the clutch Oo.



Now I remember why I don't post much on the transmission threads... ...



At work last night a coworker came up to me and sai... I saw your truck get sideways coming out of McDOnalds... I was like ya I was ****** drive through was too long... ... i asked him if it smoked much. . he said he didn't know he was a couple of blocks in front of me... LOL I didn't think it was that obvious... and that was only Level II.



Did ya listen much last night Jim?

 

[Strick-9]

I enjoy these posts. Both people are honest and telling the truth. Yet they are saying opposite things. How is that possible?





CC and LSMITH are right. The difference between fluid coupling and lockup is greater as more of a load is placed on the converter. And also as rpm decreases.



Then we have Kat simply saying that he never shows more than 125rpm going into lockup. For some reason or another the two guys mentioned about feel like Kat needs an education in torque converters and they are SURE that they OBVIOUSLY know more than Kat and want to help him understand.



My converter doesn't lock up at 1/4, 1/2, 3/4, or full throttle. It only locks up when I'm applying just enough throttle to cruise. With any more throttle, it simply won't lock up. Therefore, I too have a very small rpm drop into lockup. ALWAYS. Under ALL conditions.



So both sides are right. Now if we could only get people who THINK they know everything to quit shoving information down other people's throats, this would be a much nicer place to hang out.



And maybe, just maybe, we could all learn more.



-Chris

 

[StakeMan]

Kat,

Are you doing the lock-up tests with the TC controller? I think you would need to let the PCM control lock-up to have a closer comparison.

 

[KatDiesel]

Originally posted by StakeMan

Kat,

Are you doing the lock-up tests with the TC controller? I think you would need to let the PCM control lock-up to have a closer comparison.

I have no switch, no controller, no TC saver on my truck.



Any other suggestion? Maybe I should come to CO so we can compare. . once ya get a decent turbo

 

[StakeMan]

I don't think our trucks are close enough in HP to compare the 2.

 

[JConley]

Chris... you made me think of someting. With my DTT VB, if I had a load at any point, it wouldnt lock up or shift up for that matter. I could go up a hill, and it would hold the gear. That was nice! I havent tried this with this new setup since I have spent all my time on the highway. In fact, sometimes hitting the gas going down a hill, the DTT VB wouldnt shift up when I let off the gas for a little while. That wasnt so nice at times since I would be waiting for it to shift. Looks like this is more related to the VB than the TC. Interesting... .

 

[pwr2tow]

Since this is a *****ing thread,



Every thread that I have read that has taken a big bad dump has come from a DTT comment.



You never see a thread where BD slams ATS.

You never see a thread where ATS slams BD.

You never see a Thread where BD slams suncoast.

You never see a thread where ATS slams suncoast.

You never see a thread where suncoast slams BD.

You never see a thread where suncoast slams ATS.

You never see a thread where suncoast slams goerend brothers.

You never see a thread where goerend brothers slam BD.

You never see a thread where goerend brothers slam suncoast.

You never see a thread where goerend brothers slam ATS.

You never see a thread where BD slams goerend brothers.

You never see a thread where ATS slams goerend brothers.



I can not read a thread without DTT slaming someone or something.



I was on the DTT band wagon at one point in time, MAN am I glad I fell off before I ordered the DTT cheerleading uniform.



Ron

 

[Mark_Kendrick]

Originally posted by KatDiesel

When I see my transmission lock up its never more then 125rpm... I have said several times it won't lock up under WOT, and it won't generally lock up until I let off.



Maybe I am missing something. I checked it on the way to work and on the way home. With overdrive off. Never more then 125rpm drop. I get going way too fast with overdrive on... . in 35mph zone. Mainly it felt like it locks up when I am back at 1/4 throttle. Full throttle it won't lock up as near as I can tell. 3/4 throttle, same.



Be happy to let someone ride with me in my truck and see for themselves. Kinda dangerous to be doing it alone alot around town, i get going way to fast to stare at the tach.

You obvoisly have efficient fluid coupling . . what is your stall speed?



put your truck in gear hold the brakes and lets see what the highest rpm is before tire slippage or truck movement.



there are many factors that make a good TC. Fluid coupling, proper stall, lockup capability. you obviosly don't have the lockup when you need it(WOT). So what's the stall like? the DTT fluid coupling is known to be excellent.

 

[KatDiesel]

Originally posted by Mark_Kendrick





You obvoisly have efficient fluid coupling . . what is your stall speed?



put your truck in gear hold the brakes and lets see what the highest rpm is before tire slippage or truck movement.



there are many factors that make a good TC. Fluid coupling, proper stall, lockup capability. you obviosly don't have the lockup when you need it(WOT). So what's the stall like? the DTT fluid coupling is known to be excellent.

I'll have the lock up when my new TC goes in, I am going to the 93% race TC in my quest for 12. 9x or lower on diesel only. Also have cryo'ed input and output shafts to go with it. Trying to find the time to get it done... .



On the stall... . I will try this the day before I yank the transmission to put in the cryo'ed shafts... ... I'd rather not snap anything which commonly occurs during stall tests.



On the race track in 4wd anything above 22psi the truck starts to move... . I didn't look at the tach, was watching boost gauge and tree.



Remember I have 4. 10 gears whereas alot of the auto guys run 3. 54.

 

[Jetson]

I hate all automatics

I like to drive. With an auto, all you do is hold the steering wheel. In a few years you probably won't have to do that either. Lazy people

There, how's that for beechin?

 

[Floor It]

LSMITH,I've road in kats truck awhole lot and when the convertor locks up you can hardly feel it,kat is not out-right wrong!Why this is I dont know,it seems everything about his truck responds to things differently,for the better. I agree with kat on the 125 rpm drop when convertor locks up.

 

[Cummins Corvette]

Originally posted by ronsram1999

Since this is a *****ing thread,



Every thread that I have read that has taken a big bad dump has come from a DTT comment.



You never see a thread where BD slams ATS.

You never see a thread where ATS slams BD.

You never see a Thread where BD slams suncoast.

You never see a thread where ATS slams suncoast.

You never see a thread where suncoast slams BD.

You never see a thread where suncoast slams ATS.

You never see a thread where suncoast slams goerend brothers.

You never see a thread where goerend brothers slam BD.

You never see a thread where goerend brothers slam suncoast.

You never see a thread where goerend brothers slam ATS.

You never see a thread where BD slams goerend brothers.

You never see a thread where ATS slams goerend brothers.



I can not read a thread without DTT slaming someone or something.



I was on the DTT band wagon at one point in time, MAN am I glad I fell off before I ordered the DTT cheerleading uniform.



Ron

 

[Cummins4Life]

*practices 6speed sift pattern with a broomstick* :{ Hindsight is 20/20 I guess.

 

[Gary - K7GLD]

YUP, ALL this auto transmission stuff is EXACTLY why I bought my truck equipped the way it is...



Absolutely NO regrets!

 

[Koa Man]

Originally posted by Ethdee

My transmission has never locked up.

You are lucky. My computer locks up all the time, no RPM drop either... . it just locks up.

 

[Cummins4Life]

Originally posted by Koa Man





You are lucky. My computer locks up all the time, no RPM drop either... . it just locks up.

Time for a little Control-Alt-Delete