tq convert gryphon ?
 

i just got my custom 87 tune for my 04 f150 and i noticed my torque converter isnt locking in 4th gear and i was goin a steady 55mph and it still didnt lock

and when i was running the level 2 canned tune it locked at like 45


was it written like this or what?:shrug:

If you have the monochrome gryphon (black and white) then get a datalog and I can tell you in 10 seconds if it is locking or not. In my sig I have a link of how to get a data log, download and view it. All you would need to do is do a very slow and even acceleration from 0 to about 70 while recording speed, rpm and comm gear then post a screen shot of the graph. The torque converter is probably locking up and you're not feeling it.

I don't think I have one but I'll check and see..... But when it was level 2 tow perform I'd lock and when I hit the gas it would stay locked Now when I'm doin like 60 and I wanna bring it up to 65 with a little gas the rpms go up to about 2200 from about 1500

I'm surprised the TC would stay locked if you stepped on the accelerator. The TC SHOULD unlock if you increase the throttle opening more than just a little bit. It does this in response to a demand for increased torque, which an unlocked TC allows by instantly increasing the engine RPM.

And, if you let off on the accelerator, the TC should also unlock, to let the engine "freewheel", so it doesn't drag your speed down. This saves on gas.

Do as Longshot says. Get a datalog and we might be able to tell you if an adjustment is needed.

As you might imagine, the TC tends to lock under very light load at cruise. It unlocks otherwise.

- Jack

It can data log and I'll do that tomarro... It makes sence now cuz I am getting better mpg just wasn't used to it

If you are around 1500 when going about 50 mph then your TC is probably locked. Cody's got the TC locking figured out, he just wrote me a tune and I can barely feel it. :woot:

What? Cody's giving YOU special treatment? :yikes2: Since when do young grasshoppers get this kind of attention? :disbelief:

Sorry, couldn't resist. :evillol:

- Jack

I went through through the proper channels, sorry if you feel like I'm "on your lawn" :D

:smiley_roll1:

ok i just did the run and after i hit 70 i felt it lock up

http://i211.photobucket.com/albums/b...datastream.jpg


is there any way that i can change the value of when the converter unlocks under a little acceleration

i just wanna be able to hit the accelerator a little bit without it unlocking because it feels like its wasted gas...like when i mean a little i only wanna increase mph by like 5 mph i dont need it to unlock for that.

Yep, your TC is locking pretty late. To fix it go into the custom options menu next time you program. Scroll down to converter lock points. Go to the 4th gear lock and unlock points and move them both down by 10. That should bring your lock point around 55.

How are the rest of the shifts? I can fix that (lower the TCC apply or any shift speed stuff) and get it put back on Pegasus
by tomorrow afternoon.

the rest of the shifts feel fine


when i fix the lock points do i switch it back to stock and then go back to the custom one to make the changes?

what do i gadda do for this?

Is the torque converter clutch apply/release your only concern? I can make the changes and all you'll have to do is use Pegasus to download the altered tune.

yes thats the only thing.. i want it to lock at like 50 55 and i dont want it to unlock really easily when im try to pick up like 5 mph like it does now


thanks!!

No you do not need to switch to stock if you are just making changes within a tune. Since it looks like Cody will be writing you a new one you will have to return to stock so that you can download it.

thanks guys!!

ill report back with a graph just for comparison


PHP rocks! :woot:

finally got time to get the new tune on it..sorry no graph yet but its damn near perfect!!

thanks!!!!!!!!:thumbs up yellow:

You dont have to get a graph for it since it is correct. I always say to get one because most people use subjective words to describe their problem. I'd rather have a graph that gives me the solid numbers rather than try to get the general feel by a long series of posts.