Dieselboy.
New member
I think I may have found a way to use my PCS to act as a progressive controller for my nitrous system.
As of right now it only has one master arm switch. The rest is done via the PCS. No WOT switch to set up or tap into your TPS. No push button to fumble around and try to hit when you think its a good time and hope your right.
My first stage is controlled via PMW vs TPS. It will only activate once it sees 100% throttle. As soon as it sees 99% and under it kills power (so this is safety switch 1 (in the video I fudged things around just so I didn't have to bag on it to show how it works.) I also realize I called it a pulse width modifier whens its actually modulation :doh:
ointlaugh:
The second stage is controlled via PMW vs MPH. Basically I went through my datalogs and looked at my MPH coming into 2nd gear and lockup and started there. (Roughly 16MPH) From there it starts modulating at 27% and is at 100% by roughly 40MPH
The way the 2nd stage activates is by completing the ground on the solenoid.
My master arm activates the relay which takes power from PMW5 and sends it to both solenoids as soon as it sees WOT (100%)
The 1st stage solenoid is grounded to chassis.
The 2nd stage now has power and once it sees 16MPH, PMW4 which is selected to be a ground will start at 27% PMW and continue to 100% ground by 40ish MPH
Once anything less the 100% throttle is seen by the PCS it will kill power to the relay and thus killing both solenoids. If that for some reason fails, my master arm is a full cut off.
I quickly wired this all in the cab to test using 2 LEDs. The flickering is just from the programming. I quickly fudging the values so from 10-30% TPS would activate it and the rest was set to 0. So it was on the tip of that value.
Now I just need to fill the bottle and wire it in and strap her to the dyno and see if it actually works.
Side note: There are more the just TPS and MPH to activate the PWM. I just think those will work best for me.
Any one that has experience feel free to chime in, especially on jet sizes and how fast to ramp in.
Ill post some screen shots of the PWM tables later.
http://www.youtube.com/watch?v=ZgtOQqm2v54&list=UURx2NSG8XNZ-OEchngIgjtA&index=2
http://www.youtube.com/watch?v=cr3UW8Cz8Mk&list=UURx2NSG8XNZ-OEchngIgjtA&index=1
As of right now it only has one master arm switch. The rest is done via the PCS. No WOT switch to set up or tap into your TPS. No push button to fumble around and try to hit when you think its a good time and hope your right.
My first stage is controlled via PMW vs TPS. It will only activate once it sees 100% throttle. As soon as it sees 99% and under it kills power (so this is safety switch 1 (in the video I fudged things around just so I didn't have to bag on it to show how it works.) I also realize I called it a pulse width modifier whens its actually modulation :doh:
ointlaugh:The second stage is controlled via PMW vs MPH. Basically I went through my datalogs and looked at my MPH coming into 2nd gear and lockup and started there. (Roughly 16MPH) From there it starts modulating at 27% and is at 100% by roughly 40MPH
The way the 2nd stage activates is by completing the ground on the solenoid.
My master arm activates the relay which takes power from PMW5 and sends it to both solenoids as soon as it sees WOT (100%)
The 1st stage solenoid is grounded to chassis.
The 2nd stage now has power and once it sees 16MPH, PMW4 which is selected to be a ground will start at 27% PMW and continue to 100% ground by 40ish MPH
Once anything less the 100% throttle is seen by the PCS it will kill power to the relay and thus killing both solenoids. If that for some reason fails, my master arm is a full cut off.
I quickly wired this all in the cab to test using 2 LEDs. The flickering is just from the programming. I quickly fudging the values so from 10-30% TPS would activate it and the rest was set to 0. So it was on the tip of that value.
Now I just need to fill the bottle and wire it in and strap her to the dyno and see if it actually works.
Side note: There are more the just TPS and MPH to activate the PWM. I just think those will work best for me.
Any one that has experience feel free to chime in, especially on jet sizes and how fast to ramp in.
Ill post some screen shots of the PWM tables later.
http://www.youtube.com/watch?v=ZgtOQqm2v54&list=UURx2NSG8XNZ-OEchngIgjtA&index=2
http://www.youtube.com/watch?v=cr3UW8Cz8Mk&list=UURx2NSG8XNZ-OEchngIgjtA&index=1
