does any one know if black bear locks up the converter at wot on a basic 91 tune ? I have a stock converter and it feels like the converter is locking up at wot around 70mph in 3rd would this kill a stock converter? 4l60e .

 

Yes that would kill a stock converter, and probably your 3-4 clutch pack also. Not sure if BB would do that or not. Until you find out, I'd recommend stop going WOT in 3rd and 4th. Do you have acces to any scantools that monitor TCC? That would be the easiest way to check.

 

no i dont have a scan tool that will tell me maybe i can swing by the trans shop here in town the guy is pretty cool he might take a ride with me on some wot runs thanks . its probley the 4 gear shift i dought black bear would tune that wot lock up for a stock converter . i hope lol

 

I doubt it also, but it's less expensive to figure out now than later.

 

he usually asks u what converter ur running... out of the trucks he has tuned for us he has never locked it at wot.. the way i would be able to tell its put it in3rd take it on the fwy pick it up to about 70-75 to a point u know it wont down shift to 2nd cruise it for a minute make sure the converter is locked becuase it should lock at cruise.. then hit it at wot since it doesnt downshift it should just unlock the converter. u should c a raise in rpm and a pull.. if it doesnt unlock then its locked.. u dont want too run it at wot like that.. not on a non triple disk converter..

 

thanks i will do that today

 

ok on my way to work this morning i get up to 70mph drop it in third, I floor it rpms jumper up then go down like 300 rpm i leave it floored tap the brake while keeping it floored and the rpms jump back up. So i let go of the brake and there they go down agin. this sucks that my converter is locking at wot . and i notice after doing it a few times in a row it will not lock up as hard as the first time .

 

just heard back from black bear he is gunna fix it sweet

 

so by being at a cruising speed, and tapping the break, if your rpms jump a bit, that means your converter is locked ? i noticed that while cruising on the freeway, if i let off the gas then get back on the rpms jump a bit, then back down. this is normal? im sorry if im stepping on your thread.

 

He kept his foot on the gas while he lightly stepped on the brakes.