Need a PWM signal

duramaxzak

duramaxzak

Wanna be puller!
Nov 22, 2008
2,431
14
38
Minnesota
Kappa9012 said:
as long as you're still holding positive pressure isn't that all that's needed???? regardless of hp output? your cp3 is trying to pull and and as long as your pressure feed is positive isn't that saying your cp3 is well fed? it's only positive because there's a restriction of some type.

Am I off in left field here?
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That's what I was thinking also! :thumb:
 
juddski88

juddski88

Freedom Diesel
Jul 1, 2008
4,655
120
63
Chesterfield, Mass.
And why are they telling you not to run it at high duty cycle? Or did you misunderstand the duty cycle chart maybe? I imagine its much like my aeromotive where 100% is at like 17.5v. I would just recommend using a pressure regulator
 
x MadMAX DIESEL

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
7,535
1
38
34
Lexington, Ky
Because they told me not to. Alot of drag racers run there's on a boost referenced speed. Tech told me for my application, a toggle would be best. They are not designed to run full speed for more then 15 mins.
 
McRat

McRat

Diesel Hotrodder
Aug 2, 2006
11,249
26
38
64
Norco CA
www.mcratracing.com
Not an electronics guy, but that being said ...

IIRC, there is type of transistor that lets current flow when the signal is 0, and stops current when the signal is on.

So you hook that into the CP3 PWM line. When it's idling, the lift pump gets little power. When the pressure is commanded high, the lift pump get full power.
 
TLKDRTYLLY

TLKDRTYLLY

1833 AAV Crew Chief
Jun 9, 2013
189
0
16
Hampden, Maine
I guess I don't understand why you cannot just run what we all know works, AirDog 150/165, FASS 150 etc full time and call it a day. Seems like more trouble than it's worth.
 
Kappa9012

Kappa9012

MAN.... I Broke it again.
Aug 5, 2008
694
0
16
Peoria Il
x MadMAX DIESEL said:
Cause air dogs a piece of junk, and my filter less fass coulda used an upgrade.
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I'm definitely with you on the Air Dog. Their machine work and fittings are ignorant as all hell. they could easily move the drillings in the filter head base to prevent the fittings from hitting. But that's outside the scope of this discussion.
 
PACougar

PACougar

Active member
Jun 27, 2012
2,105
1
36
41
El Dorado Hills, Ca
I've installed a few Airdog's without any problems or failures. Hell I've had one on my truck for 7 years. If you're really having all these failures, it seems it might be due to something else like bad fuel from a local station.
 
x MadMAX DIESEL

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
7,535
1
38
34
Lexington, Ky
These are spread out around central ky. I wouldn't have said anything about my thoughts on them but was asked why not just use that instead of what I bought. I for see this be a much better pump (brushless motor even) than the competition that's at or even higher priced.
 
TLKDRTYLLY

TLKDRTYLLY

1833 AAV Crew Chief
Jun 9, 2013
189
0
16
Hampden, Maine
x MadMAX DIESEL said:
These are spread out around central ky. I wouldn't have said anything about my thoughts on them but was asked why not just use that instead of what I bought. I for see this be a much better pump (brushless motor even) than the competition that's at or even higher priced.
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Figured I would ask, I always like to hear other people's thoughts and opinions on products based on their experiences. Thanks!
 
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