Shifting RPM?
#1
Shifting RPM?
For those of you with automatic transmissions, and a tach, under wide open throttle, wut rpm does your car shift gears at? Mine is shifting right aroung 5000, and I was thinking that was a little low.
#5
RE: Shifting RPM?
You can make adjustments to the governor to tailor shift timing. Its alot easier with GM transmissions, but possible with Ford. The C4, FMX, and C6 will all hold first gear untill you move the shifter. Line pressure, vacuum modulator, and the governor are what set the shift rpm. The modulator has the smallest effect on shifting and the governor the most.
I need to do some research anyway, so I will check into what I can do to modify a C4 and FMX transmission. If I find anything good, I will post it up.
FWIW I have seen 289's turning 8000 rpm with factory rods, balanced and with light pistons. The part keeping you back is the valvetrain. Floating the valves is a bad thing.
I need to do some research anyway, so I will check into what I can do to modify a C4 and FMX transmission. If I find anything good, I will post it up.
FWIW I have seen 289's turning 8000 rpm with factory rods, balanced and with light pistons. The part keeping you back is the valvetrain. Floating the valves is a bad thing.
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