1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

Crazy Fuel Pump

Thread Tools
 
Search this Thread
 
  #1  
Old 11-28-2009, 11:03 AM
1st genny nut's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Nov 2009
Location: Murphy, NC
Posts: 251
Received 4 Likes on 4 Posts
Default Crazy Fuel Pump

A 1st genny nut said if u want mad power then buy a P7100 fuel pump? wats diff bout it and where could i find one? and wat would i have to change
 
  #2  
Old 11-28-2009, 12:02 PM
muskrat's Avatar
Diesel Wrench
Join Date: May 2009
Location: Bitterroot Valley Mt
Posts: 538
Received 39 Likes on 32 Posts
Default

In 1994 the emission requirements became so strict that a fuel system's injection lag evolved into a major issue. Dodge continued to use the Cummins engine which utilized a Bosch mechanical injection pump, fuel lines, and NHAs. Bosch increased injection pressure and raised the opening pressure of the NHA so that the fuel was broken down, or atomized, into smaller droplets, thus insuring a cleaner and more complete burn. That pump was the P7100, which went into the second gen dodges. It runs on much higher preassure and therefor will deliver more fuel ---more fuel- more power. But if you get one, I will dub thee 2nd genny nut
 
The following users liked this post:
1st genny nut (11-28-2009)
  #3  
Old 11-28-2009, 12:06 PM
1st genny nut's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Nov 2009
Location: Murphy, NC
Posts: 251
Received 4 Likes on 4 Posts
Default

thnx man sec genny nut so ya think i should try to get one along with all my other things we tlked bout?
 
  #4  
Old 11-28-2009, 12:14 PM
muskrat's Avatar
Diesel Wrench
Join Date: May 2009
Location: Bitterroot Valley Mt
Posts: 538
Received 39 Likes on 32 Posts
Default

Yeah, ya greedy bugger. Get to 450 whp before ya worry about p-pumping your truck.
 
  #5  
Old 11-28-2009, 12:18 PM
1st genny nut's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Nov 2009
Location: Murphy, NC
Posts: 251
Received 4 Likes on 4 Posts
Default

aight man well christmas is coming and my truck is still pretty much stockso im trying to give the parents some suggestions on wat to get me there going crazy all ive done with my truck was set the fuel pin (cone) to the deepest setting, maxed out the smoke screw and maxed the starwheel other than tht she stock so im trying to get more horsepower for christmas
 
  #6  
Old 11-28-2009, 12:28 PM
muskrat's Avatar
Diesel Wrench
Join Date: May 2009
Location: Bitterroot Valley Mt
Posts: 538
Received 39 Likes on 32 Posts
Default

Just wait till you do the gov spring. All the things youve done so far are mostly "tuning tweaks", not really any big increasers of hp. Maybe ask for a fuel pin for your stocking. It's awesome that you're as pumped as you are about your truck because you haven't hardly done a dang thing to it yet. All the little things to come will really increase hp. Just wait.
 
  #7  
Old 11-28-2009, 12:31 PM
1st genny nut's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Nov 2009
Location: Murphy, NC
Posts: 251
Received 4 Likes on 4 Posts
Default

ya man mom just ordered the spring a sec ago and everyone always gives me s**t bout my truck and im tired of it. so im going to make my truck freaking crazy one part at a time ques how much horsepower do u think ill make with the 3200 spring the gds 60mm upgrade the 4" exhaust and the 14cm housing plus whatever i have done to the truck now?
 
  #8  
Old 11-28-2009, 01:07 PM
The_Head's Avatar
Diesel Enthusiast
Join Date: Apr 2008
Location: wy0
Posts: 205
Received 6 Likes on 6 Posts
Default

Not much more than stock unless you have some fueling upgrades done.
 
  #9  
Old 11-28-2009, 01:10 PM
1st genny nut's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Nov 2009
Location: Murphy, NC
Posts: 251
Received 4 Likes on 4 Posts
Default

the head wats a good upgrade tht brings lots of hp?
 
  #10  
Old 11-28-2009, 01:26 PM
stillcummin's Avatar
Diesel Enthusiast
Join Date: Apr 2009
Location: Chardon,Oh(cleveland
Posts: 255
Likes: 0
Received 2 Likes on 2 Posts
Default

ok it this easy.More fuel = more power.bigger fuel lines running to lift pump.Piston lift pump conversion(low pressure)dont feed the ve more then 15psi.Or in your case maybe an airdog for christmas.Max you fuel screw AFTER youve done these things.Do a leak down test on the intake/piping.dont want to lose boost.close up your wastegate if you have one.Forget about the p pump its too expensive.you might as well buy awhole truck then youd be "one of them"and not a 1st gen.
 


Quick Reply: Crazy Fuel Pump



All times are GMT -5. The time now is 10:51 AM.