Will GM 200r4 work with factory floor shift location?
I trimmed both weights as you can see. I needed to get this done because I'm about to replace the 3.08 gears with 3.73s and from what I have read the lower gears will make the car shift even earlier than with the 3.08s and I don't want that. It seems that the 3.73s make the trans output shaft turn faster at all speeds forcing the weights out making the trans shift sooner. This is probably why the GNs and SS cars had the cut down version of governor weights as these cars also had lower gears. My 2004R shifts pretty good right now but once I install the lower gears the standard Olds governor will make the tranny shift too early.
As you can see I didn't remove all of the magic marker. Removing all of the magic marker would have made the weights exactly like the GN weights. I thought it might be too much. Until I see how it shifts with the 3.73s and this modified governor I can always remove more metal off the governor that's in the car now. I'm basically going to swap them out which will leave me with another standard governor to modify if the one in the pics is too heavy. There is no guide telling anyone how much to trim for a particular application. I believe it depends on curb weight, rear end ratio, trans modifications, valve body and governor weights/springs.
I've also read that the GN governor only uses one spring.
Treblig