Shift point questions on TH400..
Thread Starter
Instructor
Joined: Apr 2004
Posts: 235
Likes: 0
From: Mansfield Ohio
Shift point questions on TH400..
Ok... if you saw previous posts, I needed to install a kickdown switch to my '77. Did that tonight and set it to activate at about half throttle. Tested with voltmeter and now working well. Took the car for a run with the G-Tech RR and it is shifting the same as before the kickdown was installed. Shifting from 1-2 at 5200 rpm and 2-3 at 4200 rpm. I thought installing the lickdown was supposed to affect the shift points? Anyway, it is shifting from 2-3 way too early and I would also like higher 1-2 shift. If I get the kit to adjust governor, will it raise 1-2 and 2-3 evenly or can I get it to shift at same RPM for both shifts? If you know of any past threads or links that may help, they are also appreciated!
Race Director
Joined: Dec 1999
Posts: 11,096
Likes: 990
From: Sierra Foothills CA
My experience with this was a few years back but I remember that some adjustment can be done by turning the screw inside the modulator at the trans after you disconnect the hose. However, it's relatively minor as I recall.
There are weights inside the trans that play a bigger role in shiftpoints. I went to a local performance trans shop & had them set it up. They got it just right- it shifted right when I wanted it to at full throttle & made my passes at the strip much more consistant. I know this doesn't exactly answer your question but I hope it helps.
There are weights inside the trans that play a bigger role in shiftpoints. I went to a local performance trans shop & had them set it up. They got it just right- it shifted right when I wanted it to at full throttle & made my passes at the strip much more consistant. I know this doesn't exactly answer your question but I hope it helps.
