I'd like to know who is locking their converter @ WOT, I think I've read some people locking it in 3rd gear and others just at a certain mph?

so post up what yall are doing, if yall are or not locking it and the results and pros/cons about it....

thanks...

 

Mine locks up right after the 2-3 at about 100mph.

 

at lower power levels i locked mine about mid 2nd gear. eventualy i broke my input shaft on the 2-3 shift. now i just lock it up after the 2-3shift. i picked up a little et and mph even when the truck was NA.

 

I command mine to lock up at 50 mph in second, basically, ASAP!!!! I'm thinking my input shaft don't like me much.
The day I was at the track running 11.4X's (I ran 4-6 passes all with-in .1th of that e.t) I tried locking it in third with no other changes I didn't even flash the PCM (ie tow haul mode) I went .4 SLOWER by locking in mid third. I ran around three more times, after I tryied locking the converter later, Once I started locking sooner, my e.t's went back down. Most will not have the same results, and will do well to lock-up after 3rd....

 

so what do yall think? I do not lock my converter and I am trapping 105mph, I went during the week to get my tune updated and now I locked it at 95mph in 3rd, how much of a gain do you think I should see? .1-.2 e/t and 1-2mph?

 

its hell on a converter, but if you have the clutch to do it, go for it... it'll help.

 

wouldnt you want to do a dyno pull in 3rd with it locked and unlocked and see where your tc curve crossed in the two pulls? then set your converter to lock up at that speed?

 

I've lost time and mph with locking the converter in 3rd gear, but every truck is different, good luck ap.

 

i used to have mine locked but recently ive unlocked it after some people at the track said it just sounds like it doesnt seem to pull any more once i hit 3rd...but now with it unlocked feels stronger and pulls more rpms in 3rd now

 

I used to lock mine just after the 2-3 shift and now its set not to lock untill 120mph Wot it sure feels better not locking it untill later on not that I do over 115mph often.