05-12-2014, 12:09 PM
that 4sp is not designed for the huge torque of a diesel.
and 4sp is has electronic shifting TCM , hidden deep in the original 97s. ECU (PCM)
get 1996 TCM or older
and make the inputs happy.
not only that , the stock shift points would be all wrong.
you need TPS , input, eCT. and tachometer (rpm input) and VSS output (its on tail of trans)
the kick down cable can be attached.
but the load signal, that causes the trans to shift by load will fail because the ECU, output to the TCM is dead.
the ECU sends load data to the TCM and the TCM delays shifting, based on load.
i think a custom tcm would work best here.
or transmission that has no TCM best of all.
the old 3speed matches that. but is even weaker rated torque wise.
I wonder what the TCM would do with a liar box on the tachmeter line, to make the diesel seem like the high reving gas motor.
I small processor can do that easy. and be adjustable easy. even with a POT as input on scaling.
and 4sp is has electronic shifting TCM , hidden deep in the original 97s. ECU (PCM)
get 1996 TCM or older
and make the inputs happy.
not only that , the stock shift points would be all wrong.
you need TPS , input, eCT. and tachometer (rpm input) and VSS output (its on tail of trans)
the kick down cable can be attached.
but the load signal, that causes the trans to shift by load will fail because the ECU, output to the TCM is dead.
the ECU sends load data to the TCM and the TCM delays shifting, based on load.
i think a custom tcm would work best here.
or transmission that has no TCM best of all.
the old 3speed matches that. but is even weaker rated torque wise.
I wonder what the TCM would do with a liar box on the tachmeter line, to make the diesel seem like the high reving gas motor.
I small processor can do that easy. and be adjustable easy. even with a POT as input on scaling.
http://www.fixkick.com