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Mr. shrapnel; Thanks for the laugh!  You'd think I'd learn to put a plastic guard on the keyboard before I log on here, eh? Very nice looking truck by the way. All the best to you and yours this Fourth of July weekend. Dwayne
The most important stuff in life isn't "stuff"
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Campfire Outfitter
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Campfire Outfitter
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Dwayne I'm running a 4 door Allison Chevy D-Max Dual wheeled flatbed hauling tidy tanks saws ect.Typical brush truck.It's mileage is horrible.Rather drive my 2000 5.3 vortex for fuel mileage.
Been bombing around in it since hunting season.
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2007
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prince brothers towing here in town have a 99 dodge duelly cummins that runs 10.38 in the quarter mile at a 128 mph. he does most of the cummins mods around here for peaple.he drives that monster around town with two big slicks on the back
Last edited by stxhunter; 07/04/09.
God bless Texas-----------------------
Old 300
I will remain what i am until the day I die- A HUNTER......Sitting Bull
Its not how you pick the booger..
but where you put it !!
Roger V Hunter
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Joined: Aug 2004
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Campfire Ranger
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Campfire Ranger
Joined: Aug 2004
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- lots of sound proofing. After market? What is a lift pump?
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Joined: May 2007
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Campfire Outfitter
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Campfire Outfitter
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Mr. Barkoff;
In a diesel engine, if the fuel tank is below the engine, as it is in a truck, it requires a mechanical or electric fuel pump to take the fuel from the tank to the high pressure pump. Typically these are low pressure units not too dissimilar to the fuel pump that would be in a gas motor equipped vehicle.
The pressure pump operates at very high pressure, as in several thousand psi to atomize the diesel as it is shot out of the injector into the cylinder head. They are almost always mechanically driven and typically are mounted on the side of the engine block.
Hopefully that explanation made some sense.
Happy Fourth of July to you and yours.
Dwayne
The most important stuff in life isn't "stuff"
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Campfire Ranger
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Campfire Ranger
Joined: Aug 2004
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Mr. Barkoff;
In a diesel engine, if the fuel tank is below the engine, as it is in a truck, it requires a mechanical or electric fuel pump to take the fuel from the tank to the high pressure pump. Typically these are low pressure units not too dissimilar to the fuel pump that would be in a gas motor equipped vehicle.
The pressure pump operates at very high pressure, as in several thousand psi to atomize the diesel as it is shot out of the injector into the cylinder head. They are almost always mechanically driven and typically are mounted on the side of the engine block.
Hopefully that explanation made some sense.
Happy Fourth of July to you and yours.
Dwayne
Thank you, so I guess the high pressure unit will increase HP?
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Joined: May 2007
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Campfire Outfitter
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Campfire Outfitter
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Mr. Barkoff;
Generally when one speaks of "dialing up" the pump on a diesel one is increasing the volume of fuel delivered, not the pressure exactly. The orofices on the injectors will have a given range of pressure and volume at which they will operate, so when one "dials up" the pump past a given point the injectors will need to be changed.
Newer pumps are computer controlled, so the adjustment isn't mechanical any longer but changed electronically. The injectors still will need to be changed out if one wants to "chip" the engine beyond what they are capable of delivering.
As with gas motors, one needs to start to modify air intake, exhaust and valve timing as well if we really want to step on things. Because diesels operate at much higher compression than a gas motor, one needs to modify the crank, the head bolts and such as well if one is pushing the envelope such as the 138mph 1/4 mile truck mentioned earlier.
Sorry for the sketchy overview, I've likely forgotten to mention something major, so if I've ommitted something, I stand to be corrected.
Dwayne
The most important stuff in life isn't "stuff"
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Mr. Barkoff;
OK forgot this, if we chip or dial up the volume on the high pressure pump, we need to ensure it doesn't run out of fuel.
That's why we then add higher flow lift pumps- to ensure the pressure pump gets all it can use.
I've likely forgotten a bunch of other stuff too, sorry.
Dwayne
The most important stuff in life isn't "stuff"
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Campfire Ranger
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Campfire Ranger
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They for sure decrease your bank account if you have to have one replaced and you are away from home like I was when it happened .
2500 bucks EXCHANGE for a REBUILT one installed .Actually , that did include a new lift pump now that I think about it .
Never holler whoa or look back in a tight place
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Campfire Ranger
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Campfire Ranger
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Time to rotate the tires I guess.
I wonder how he holds the front tires and spins the backs?
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2007
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God bless Texas-----------------------
Old 300
I will remain what i am until the day I die- A HUNTER......Sitting Bull
Its not how you pick the booger..
but where you put it !!
Roger V Hunter
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Joined: Jul 2006
Posts: 8,514
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prince brothers towing here in town have a 99 dodge duelly cummins that runs 10.38 in the quarter mile at a 138 mph. he does most of the cummins mods around here for peaple.he drives that monster around town with two big slicks on the back wow
**********************
[the member formerly known as fluffy}
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Joined: May 2007
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Mr. michaln; Thanks for the you-tube link. I agree with your assessment on the older 12valve Cummins being the desirable ones. If they�d made a 4 door, I wouldn�t have even looked at a 24valve. Ah well, time will tell I suppose on the �03 in the yard. I believe BD Diesel is the very shop that modified BCBrian's diesel. They are a very well known shop up here for those who evolve from "diesel enthusiast" to "diesel fiend".  As noted by other posters the initial cost of a diesel can be prohibitive and repairs aren�t cheap. That said, my daily commuter �90 Jetta TDI has 375,000 kilometers on it and is just getting broke in. Also, it gets about 59miles to the Imperial Gallon, which isn�t offensive.  Thanks again for the you-tube link and Happy Fourth of July to you and yours. Dwayne
The most important stuff in life isn't "stuff"
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Joined: Nov 2007
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2007
Posts: 47,212 Likes: 6 |
this the prince brothers dodge at the strip in san antonio 3 or 4 yrs back http://www.youtube.com/watch?v=77tCHeAvlQY&feature=related
God bless Texas-----------------------
Old 300
I will remain what i am until the day I die- A HUNTER......Sitting Bull
Its not how you pick the booger..
but where you put it !!
Roger V Hunter
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Joined: Jan 2005
Posts: 10,718
Campfire Outfitter
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This is exactly what scares me about buying used!
Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery.
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