vwbusman66
Stößelstange über alles
- Joined
- Oct 12, 2016
- Location
- SE MI
So I'm pretty familiar with the vaunted "Poi-shift" box used by many guys for running the white block auto trans or aristo trans.
I am contemplating doing a budget LS build this summer and would like to go the 4l80e route to save money. From my reading, it seems like the 4l80 operates on the same principles as the AW30-40 (a combination of solenoids on/off will select gears). The 4l80 also has a lockup converter, which is operated by a third, independent solenoid (lockup in all gears if you're feeling frisky).
Realistically, couldn't I control those solenoids with a microcontroller, two momentary switches, and a microcontroller (the same way ya'll run the 30-40)? For the lockup, you could just add an on/off switch somewhere convenient that can directly actuate the solenoid or use the Arduino to control it.
Also, I'm 75% certain the Arduino (or other MC) (with the correct circuitry to step up/down the 12v and 5v signals) could be used to control line pressure on these.
The 4l80 EPC (line pressure solenoid) operates using PWM typically. When there's no power to it, full line pressure is given. There are two routes I suspect you could go: the first being a potentiometer read by the Arduino to set a fixed line pressure, the second using some coding/graphing to read TPS, gear position, and lockup condition to vary the line pressure based on perceived load.
Does any of that make sense?
I am contemplating doing a budget LS build this summer and would like to go the 4l80e route to save money. From my reading, it seems like the 4l80 operates on the same principles as the AW30-40 (a combination of solenoids on/off will select gears). The 4l80 also has a lockup converter, which is operated by a third, independent solenoid (lockup in all gears if you're feeling frisky).
Realistically, couldn't I control those solenoids with a microcontroller, two momentary switches, and a microcontroller (the same way ya'll run the 30-40)? For the lockup, you could just add an on/off switch somewhere convenient that can directly actuate the solenoid or use the Arduino to control it.
Also, I'm 75% certain the Arduino (or other MC) (with the correct circuitry to step up/down the 12v and 5v signals) could be used to control line pressure on these.
The 4l80 EPC (line pressure solenoid) operates using PWM typically. When there's no power to it, full line pressure is given. There are two routes I suspect you could go: the first being a potentiometer read by the Arduino to set a fixed line pressure, the second using some coding/graphing to read TPS, gear position, and lockup condition to vary the line pressure based on perceived load.
Does any of that make sense?