Low shift points tf6

[jeepthrills01]

So i put the tf2 kit into my 904 a while ago and it sat till i got the front end and brakes sorted. I am just now to a point where i can drive it a bit...im 100% positive i have full throttle and TV set to all the way back at full throttle.
Regardless of throttle position...my auto shifts happen about 2500-2800.
There is no overlap...both shifts are crisp.
Thoughts?

 

[wagonman]

Govenor sticking?

 

[Dave6T4]

Line pressure adjustment backed off?

 

[dvw]

If the governor is stuck it usually won't shift. If the kick down is ok My bet is that a mistake was made installing the TF 6 kit. I'd pull it apart and carefully inspect your work.
Doug

 

[jeepthrills01]

Only thing i can think of is maybe i left the PR adjustment too loose?
I remember turning it till the spring retainer just touched the cage...which is the recommended setting for street.
I was able to sneak the included plain spring under the accumulator(?) piston...and as far as the VB plate...it already had holes in the max recommended size. I might have ground off a few extra thousandths on the VB piston...but aside from that it was textbook.

 

[dvw]

What does the throttle valve arm/linkage fell like when you push it back by hand? Does it have spring resistance? Was anything else apart besides the valve body?
Doug

 

[jeepthrills01]

There is definitely springyness to the lever..tranny stayed in the car...i pulled the VB and worked it on the bench

 

[Dave6T4]

I always turn the line pressure adjustment in so a 5/16" drill(or pan bolt) fits between adjuster and cage. This is using stock spring. Can go to 3/8" . Putting lighter governor weights in will help. A&A Transmissions sell these.

 

[jeepthrills01]

Wow....that much? Instruction sheet said only 4 turns for "full race shifts"..

Anyway its sliced...i guess the pan comes back off

 

[Dave6T4]

Wow....that much? Instruction sheet said only 4 turns for "full race shifts"..

Anyway its sliced...i guess the pan comes back off

That is the adjustment I use with a stock line pressure spring. If the shift kit has a custom spring here, then all bets are off.

 

[jeepthrills01]

I give it a shot