I've got a 93' F-Car that uses basicly the same transmission many of you use. (4l60 non E)

I put a transgo shift kit in a brand new GM SRTA transmission and it has one really bad problem.

When you leave in first gear you have got to push the selector to 2nd at 4500rpm for it to shift at 6000rpm. It does the same thing but not as bad for the 2-3 shift. Its not a slipping shift but its really late. I would prefer the transmission shift very very soon after I move the stick.

Here are some more clues that may help you guys help me diagnose the problem.

1. It shifts great around town not violent but nice positive shift at good rpm.

2. In drive at WOT the transmission shifts out of first at 5000rpm and out of second at 6000rpm. It does this over and over and its very consistant.

3. I can't tell you how it shifted stock because the transmission was fresh out of the box.

4. Its not slipping at all and makes a very positive good shift just 1500rpm late.

What do you guys think could be the problem? I'm really concerned to get the car to actually shift when i command it to.

I was thinking maybe the Governor could probally have the wrong wieghts in it delaying the shift so badly, but does the governor still control shifts when you manually run threw the gears?

Maybe a sticky 1-2 valve?

Someone please help. This problem cost me a bracket race I had in the bag last sunday.

 

If you never have ran the trans before, it might have a light weight governor in it. See which one you have and let me know? If you do not know what you are looking at, (when you have the governor out) then call me and I will help you figure it out GM probably mixed parts between valve & governor, common.

 

So the govenor valve would be responsible in a late manual shift?

I believe, I'm not positive thought that I may have a govenor valve left over from an older transmission. I'm going to try to locate it and install.

 

???

 

In case you didn't get it, if the Tranny is calibrated to shift at a higher WOT shift point than when you manually shift it will be delayed until that point.

 

Nope it can't be.

Its bounceing off my revlimitor at 6500-6600rpm when I shift it at around 5800rpm

I can get it to shift where I need (6000-6100) but I have to manually push it into second at 4500rpm or earlier.



Its a hotcam car so it needs to be shifted around 6000-6100 with the last tranny and every other one I've had before that it shifted when I pushed it into the next gear.

Even stock trannys would shift at 6100 pretty much on command.

 

A) I fix SoRTA's all the time. Not very impressed with them.

B) Reread the post. IF it wants to shift at a certain RPM it does not matter if you do it manually or not, you will only be delaying it if it does want to shift earlier than that.