4l60 shift points

sateng · Nov 29, 2011

Hi all!
does anyone know how to make a 4l60 shift later into OD?
actually my OD shift is at 30mph but should be higher. (the tcc cluth makes my car rumble at this low rpm!)

SpeedZ28 · Nov 30, 2011

This has to be done in the PCM/Computer. The car has to be tuned for it. Mine doesn't go in to od until 55 mph and I like it there. GL.

PowerWindows · Nov 30, 2011

The 93MY 4L60 can't be changed via reprogramming the computer like the 94-up 4L60E due to the use of a "chip". EEPROM's didn't debut until 94 MY.

SpeedZ28 · Nov 30, 2011

Guess I should have noticed the 93 in his sig

sateng · Nov 30, 2011

What equipment do i need to program it? Which values have to be changed? what about the governor??

SpeedZ28 · Nov 30, 2011

Yeah usually the governor in the non-eletronic 4l60/700r4 is what makes this happen. Did this just recently start happening? Someone could have put the wrong governor in it. They look the same but I think the Camaro governor has a lighter spring.

There's also the throttle valve cable but if I'm not mistaken, this will only adjust the kick down.

sateng · Nov 30, 2011

The tv cable is adjusted properly! It seems like anyone swapped the governor because the cover looks crappy.
will try a factory governor soon.

PowerWindows · Dec 1, 2011

SpeedZ28 said:
Guess I should have noticed the 93 in his sig

Yeah, 93's are the odd one of the 4th gens being speed density tuning (only year for that!), last year to use a chip in the PCM and use of the 4L60 (basically a 700R4).

4l60 shift points

sateng

SpeedZ28

PowerWindows

SpeedZ28

sateng

SpeedZ28

sateng

PowerWindows

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