Have a 90 formula 350. Is there anyway to adjust when the trans. will shift? when i hold it to the floor 1-2 shift happens around 4600 rpm which is great, then 2-3 shift doesn't happen until 5000 rpm which is too late, i'd like the same 4600 rpm shift to get back in the torque band a little earlier. The car really pulls good once it gets back down between 3000-4500 rpm. Is it controlled at all by the computer? Or is it contolled by tv cable?

 

On a '90 it is hydraulically controlled. Here is the problem I see: Normally the shifts are right oh the money accross the board. If your 2-3 is later I suspect it is due to slippage. We percive a shift to be occuring when it is completed, unless there is noticable slip. In fact it starts earlier(you can see it with a pressure gauge- the needle will flicker as soon as the shift valve moves due to a momentary drop in pressure from filling an empty circuit) than that but we don't know it. The 3-4's are a known weak point in these units. If it HOLDS once in gear and the oil look OK I would suggest a TransGo Reprogramming Kit. It will shorten the shift time (in fact it may make it SEEM like it is shifting earlier since the shifts are shorter).

 

I don't think it is slipping because it shifts pretty solid but i guess it is possible. Will try shifting manually from second to third if it wont then i guess i could get a kit. Thanks.