Engine/Transmission (1994 - 1998) Electronic P Pump Fuel Stop

[mjs]

Why not ? I thought of this has any one else ? My idea is to replace the afc with an electrically controlled one using signals of rpm,boost,egt and the curve and rate can be mapped and trimmed with a computer. Then again i guess it's just as well to go to the 24v at this point . But hey this idea would sure take a lot of R&D out of finding the rite plate & spring combo . MJS

 

[pwerwagn]

Yeah, but imagine how much R&D time the housing would take! Besides, the plate/spring R&D has already been done numerous times. I think its pretty much perfected, isnt it?

 

[Vaughn MacKenzie]

BINGO MJS, I've thought of the same thing many times. I think a software-driven mechanical system would be THE BOMB!! I would get rid of the AFC and cam plate altogether and have a high-quality infinite position solenoid drive the governor lever. Then of course you'd have to come up with the software and interface. Once you got this aspect ironed out, imagine the possibilities! You could come up with all sorts of profiles & power curves and set it up where you could select whatever you wanted. One good thing about a 12-valve is it doesn't require a computer to run, so right there you'd be ahead of the game. . . software controlled but not computer dependent. You could take the 12-valve where no one has gone before. Be able to fine-tune controls but not have the glitchy drivability issues caused by noisy or finiky sensors. All you really need for input is boost, throttle position and RPM. Doesn't need to get too sophisticated at all.



Vaughn

 

[Will24]

Mack already uses essentially the same setup with the VMAC P7100 and P8500 pumps



-Will

 

[Will24]

Here's some pics of the Mack EDC bosch pumps



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[Will24]

That 2nd pump is a little different from what I am used to, but apparently it's the same controls, not a truck application (my thoughts)



On the first one (a normal E7 pump), you can see the plug at the rear of the pump on the governor housing, an electronic sensor is installed in that hole when static pump timing is set, you just plug the tool in and rotate the pump until both lights light up and stay lit on the tool, it's pretty slick.



-Will

 

[Vaughn MacKenzie]

Will, I wonder what it would take to fit one of those up to a B-series Cummins? How do they compare size-wise to the P7100?

 

[Heepdriver]

Yea! How much fuel can they push? What are the power ratings of the motors they come off of? Not trying to steal the thread but you seem to know heavier truck parts. what would one look for in a salvage yard along the lines of a 10 spd transmission to go behind a B. I've seen a bellhousing so I know they are out there. Would the flywheel bolt up or is this a dodge light truck only bolt pattern. Just some ideas ive been tosing around. having trouble with my 4500.

 

[bmoeller]

Will, I wonder what it would take to fit one of those up to a B-series Cummins? How do they compare size-wise to the P7100?

That pump sits on the right-hand side of the engine, not the left, as on the B series.