D vs. OD

[VIN7]

Is it normal for the part throttle shift to be later and firmer in D than in OD?

Thanks,
Mike

 

[VIN7]

Here's a better description.

Increasing TV, moving cable towards firewall, doesn't seem to influence part throttle shift points in OD. If I move to D, then I get the delayed, harsh shift at part throttle you would expect from adjusting TV. Is that how it is supposed to work? I thought OD shouldn't be any different that D at part throttle.

Mike

 

[Renthorin]

FWIW...I get firmer shifts in D than in OD.

 

[Fast4Ward]

fwiw...i get firmer shifts in d than in od.

+1

 

[Black3]

Not only will mine upshift harder in D vs. OD, slowing to a stop it will hit much harder downshifting from 2-1 if the selector is in D.

 

[88 CuttyClassic]

fwiw... while i dont have a TB i do have a 200r4 in my hurst olds and i get a pretty violent(well violent as 307 can be, lol) 1-2 in OD. I dont get the same shift in D. it rips the tires while in OD but i've never got them to even chirp in D.

 

[mikestertwo]

If I'm not mistaken, when the trans is in manual 3rd and the trans has the "X" seperator plate, pressure is applied to the boost valve in the pump increasing pump pressure. I looked into this issue years ago and found there was a feed hole moved on the "X" plate to boost pressure when in manual third. My memory is fading so maybe someone else can chime in.