powerglide launch in high gear
:?
I just rebuilt my JW powerglide and had the converter freshened up. Went to the track and had a decent test run on the throttle stop of 9.45 at 152MPH. Great!
Now the problem. Went back the pits and decided to bump up the throttle stop RPM. Disconnected the air from the dedenbear stop. Proceeded to put the car in low gear and pressed the transbrake button. started to raise the RPM in this mode with the idea of setting the stop RPM. Got to 3300 RPM and the motor bogged ( like the car shifted into high gear???). Converter stalls at 5600 RPM launch at 5000 RPM
Heard a sound like pressure leaking. No fluids leaking that we saw.
Checked linkage for tightness - OK
Checked pressures at servo - 200psi - OK
check band adjustment - OK
Still the same problem.
Said to hell with changing it and tried to make a pass. the car felt like it launched in low gear after the transbrake switch went off. then took off in high gear and shifted into high.
Looking for help/suggestions