automatic vs manual P-pump
#1
automatic vs manual P-pump
Ladies & gentlemen i am not sure of the difference but i have a 97 12v that came out of an automatic dodge in a crew cab 06 ford dually, it has a 0 fuel plate and 370 marine injectors phat shaft 62 windmill. Now I've turned up four other 12's for buddy's of mine and they can all stomp my *** off the line and pull from me. I kinda thought with all the fuel i should out run them. So I'm wondering and questioning what is the difference in the automatic tranny P-pump vs the Manual tranny P-pump. So I'm kinda green at this so enlighten me please, and sorry if its been posted on here already and I'm jut not seeing it.
#2
The Automatic has a smaller cam in it therefore meaning less hp. They build manual trannys a lil bit better so they usually make it a higher hp pump. The auto i think had a 180 hp pump and the manuals had 215 hp pump.
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#3
#4
I've been told that the cams are the same, but I don't know enough about them to know specifically how they deliver their different amounts of fuel at different times. Basically the 180hp pump is on the 97auto and a 97manual had a 215hp pump. It's my personal belief the 180 and 215 pumps may require different timing settings, but anyway...the 215 pumps will always deliver more fuel mod for mod.
#5
The 94-96 autos have the 160hp pump
the 94-96 sticks have the 175hp pump both have the same cam 131 dv's and flat top plungers
the 96-98 autos have the 180 pump with flat top plungers, a better cam than the 160 and 175 pumps, and 181 dv's
the 96-98 sticks have the 215 pump, retard notches on the plungers, better cam than the 180, lighter gov assembly, and 181 dv's
the 94-96 sticks have the 175hp pump both have the same cam 131 dv's and flat top plungers
the 96-98 autos have the 180 pump with flat top plungers, a better cam than the 160 and 175 pumps, and 181 dv's
the 96-98 sticks have the 215 pump, retard notches on the plungers, better cam than the 180, lighter gov assembly, and 181 dv's
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biged681985 (03-12-2010)
#7
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biged681985 (03-12-2010)
#8
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