440t4 / 4t60 shift questions

[yeyo_racing]

Does anyone knows if the 440t4 / 4t60 should shift into 4th @ WOT? I built an 85 1/2 440t4 with a 3.73 FD ratio and i'm only able to go low 120ish on 3rd @WOT with the engine running around 6375 RPMs.

[robertisaar]

it depends on how your TV cable is adjusted. you SHOULD be able to get into 4th if it's loose/tight enough(i can't remember how it works ATM).

but i would much rather use a 60E in that situation, at least then you're guaranteed it can shift and will do so consistently.

[yeyo_racing]

I guess you're right. I did the adjustment with the throttle pedal instead of the regular method of opening the throttle body by hand. This gave me a higher shift point @ around 6200 to 6300 RPMs and most probably 4th doesn't like it. I'm going to loosen it a little bit more and test it again, but man does it run good this way and it's only @ 8 psi of boost. I just don't want to go lower than a 6000 RPM shift point since the cam profile is setup to run good up there.

[yeyo_racing]

BTW Robert, I know it's kinda off topic but I need to ask you a question. I'm currently using a Fiero definition file (24.xdf) which you are listed as the author. I wanted to ask you if you know how to create a value to monitor TPS in % instead of voltage. I'm using TP v5.

[robertisaar]

hmm.... simplest way would be to somewhat emulate the way the ECM determines what the TPS% value is(it tracks it, but it's not displayed in the datastream). i'm not all that fond of the old C3 ECMs with the 160 baud stream... find out what the TPS voltage is when the throttle is closed and i'll see what i can come up with.

[gpse3400]

The TV cable might be able to adjusted but for 3-4 shift at WOT though it will throw all the other shift points, so long as you dont mind very early shifting.