727 Issue With 2-3 Upshift
This is a rebuilt 1976 727 auto mated to my 440. I also installed a TF-2 Transgo shift kit during the rebuild (followed all directions to a T), 3500 PTC converter, 5400 rpm governor, Bouchillion Cable.
My issue: If I adjust the kickdown to be close to all the way back at WOT the upshift is delayed i.e. stays at 5400-5500 until I let up. But the 1-2 and 2-3 upshifts during normal driving are about perfect. If I adjust the kickdown back the other way it will shift crisply at 5500 rpms but the upshifts from 1-2 and 2-3 during normal driving are very fast and feel inconsistent. I have found no middle ground.
My Theory: Throttle pressure is overpowering governor pressure when it is adjusted tighter and isn't letting the governor do it's thing. When adjusted looser, the line pressure is too low to affect crisp up shifts. Possibly due to the heavier springs and adjustments in the TF-2 kit...(see pic)
If I reinstall the stock PR springs and set the adjustments back to stock will this resolve my issue? Is there any way to up pressure in the governor circuit so it overcomes throttle pressure?
This is a rebuilt 1976 727 auto mated to my 440. I also installed a TF-2 Transgo shift kit during the rebuild (followed all directions to a T), 3500 PTC converter, 5400 rpm governor, Bouchillion Cable.
My issue: If I adjust the kickdown to be close to all the way back at WOT the upshift is delayed i.e. stays at 5400-5500 until I let up. But the 1-2 and 2-3 upshifts during normal driving are about perfect. If I adjust the kickdown back the other way it will shift crisply at 5500 rpms but the upshifts from 1-2 and 2-3 during normal driving are very fast and feel inconsistent. I have found no middle ground.
My Theory: Throttle pressure is overpowering governor pressure when it is adjusted tighter and isn't letting the governor do it's thing. When adjusted looser, the line pressure is too low to affect crisp up shifts. Possibly due to the heavier springs and adjustments in the TF-2 kit...(see pic)
If I reinstall the stock PR springs and set the adjustments back to stock will this resolve my issue? Is there any way to up pressure in the governor circuit so it overcomes throttle pressure?
