leftme4dead

Sorry for this easy qiestion but, I hear people talking about it being locked or unlocked? Im assuming theyre referring to their converters. I dont know what it means to be locked or unlocked. Someone please correct my ignorance.

joecar

The torque converter ("TC") has a clutch inside it ("TCC");
the PCM can lock or unlock this clutch as it sees fit;

TCC unlocked: the TC multiplies torque and allows the engine RPM to drop less at the end of each shift (keeps engine in torque band); this improves vehicle acceleration.

TCC locked: the TC has no slip (and no torque multiplication) and transmits crank rotation directly into trans. input; this improves gas mileage and reduces heat generated by TC.

leftme4dead

so can any stall be locked or unlocked? if so, how do you lock or unlock a stall?

BlackHawk T/A

iTrader: (3)

It is controlled automatically just like your stock one.