shift point

[DaBears1285]

I know the red line on our motors is 6800 and power peaks at 6100, so which is the factory sift point? cause mine sifts at 61 but i thought it was suposed to be 68

thanx

 

[Porkchop]

first gear, second gear?

 

[wuzzzer]

Each gear shifts at a different rpm. Shift points will also depend on how aggressively you drive the car. Drive it harder and it'll shift higher.

 

[hoboprodigy-]

37.5, 69, 111, IIRC on the factory program.

 

[Porkchop]

cause at WOT my tranny shifts at 7000 on the dot

 

[hoboprodigy-]

My factory program certainly does not.

 

[2 4shofast]

Mine did the same with the factory program as Chop IIRC>

 

[DaBears1285]

sorry, im talking WOT, and what do you mean each gear has its own shift point? my mustang always shifted at redline when under WOT

 

[Porkchop]

a lot of times its not the programming. The guy who rebuilt my tranny informed me that as the tranny wears down the shift points will get lower and lower at WOT.

Stock shift is 7000, but if the tranny can't take it it won't go there

 

[SHOwned]

Very interesting! I have a 1996 LX with a 200hp Duratec V6, redline is 6500RPM, it shifts at only 5750 under wide open throttle.

As it is reving it delays periodically in the high 4000-5750RPM range as well, almost as if it is retarding the throttle for a shift or something. Perhaps I may be getting a new transmission under warranty in about 10K miles :-/

 

[SHOZ123]

According to my OEM AWL1 programming it is by MPH, 37.5 @ 1-2, 69 @ 2-3 and 111@ 3-4.

But the adaptive learning has it's fingers in there too. You guys with the low shift points need to clear the KAM by disconnecting the battery for a minute and then go out and drive it like you stole it so the SHO gets taught the right stuff.

 

[DaBears1285]

mph has a hand in shift points yes but so does throtle position. Inside the trany there are two forces that control shift time: Throtle Valve presure(holds low gear as long as posable for performance/passing)and Govener Valve presure(forces upshifts for fuel economy/emisions and engine life)

 

[Axianator]

Inside the trany there are two forces that control shift time: Throtle Valve presure(holds low gear as long as posable for performance/passing)and Govener Valve presure(forces upshifts for fuel economy/emisions and engine life)

Maybe on an older TV-controlled Mustang AOD, but such is not the case with the AX4N. On the Gen 3 SHO, the primary shifting components consist of three separate shift solenoids (which, depending on the desired gear, can be activated in various combinations) and a electro-hydraulic EPC solenoid to module line pressure. All of these components are controlled directly by the EEC itself.

 

[Axianator]

Inside the trany there are two forces that control shift time: Throtle Valve presure(holds low gear as long as posable for performance/passing)and Govener Valve presure(forces upshifts for fuel economy/emisions and engine life)

Maybe on an older TV-controlled Mustang AOD, but such is not the case with the AX4N. On the Gen 3 SHO, the primary shifting components consist of three separate shift solenoids (which, depending on the desired gear, can be activated in various combinations) and a electro-hydraulic EPC solenoid to modulate line pressure. All of these components are controlled directly by the EEC itself.

 

[DaBears1285]

yea, but all thouse soliniods do is control the govner and t.v presures, anyways my point was really just to say the mph isnt the primary factor

 

[SHOZ123]

I was assuming WOT shift points.

 

[Axianator]

yea, but all thouse soliniods do is control the govner and t.v presures

Not exactly ...

The shift solenoids that control when the transmission shifts (and into what gear) are nothing more than on/off-state electro-hydraulic actuators - nothing more. They play no part in the line pressure equation and, like every other transmission component, are controlled entirely by the EEC. When it comes to line pressure control within the tranmission, the EPC solenoid is solely where it's at.

anyways my point was really just to say the mph isnt the primary factor

Correct - relative TP on the the X-axis and corrected MPH on the Y-axis.

 

[SHOZ123]

Not exactly ...
Correct - relative TP on the the X-axis and corrected MPH on the Y-axis.

Still haven't found that table......

 

[Axianator]

Still haven't found that table......

Which one?

 

[SHOZ123]

TP and shift points.