24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
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Whats wrong???

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  #1  
Old 05-06-2010, 10:56 AM
jake 94's Avatar
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Default Whats wrong???

I just put a new tranny in my truck and i thought that the truck would be way faster since the other converter was slippin but this thing is gut less. my buddy has the same set up as me with smaller injector and different lift pump and that thing is so fast. Can anyone tell me whats goin on and when i put it to the fllor on the freeway in downshifts so my rpms are raelly high
 
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Old 05-06-2010, 08:42 PM
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Sounds like a converter problem.What stall is the converter?Is it starting out in 2nd gear?
 
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Old 05-06-2010, 08:45 PM
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hmm what converter did you get whats your fuel pressure boost ect
 
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Old 05-06-2010, 11:37 PM
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the converter is an off brand but its a billet triple disk. and its a low stall. my fuel pressure is 20-22 at an idle and with the edge on 5 at WOT it drops to 6 sometimes 5 but with the edge on 1 it goes to 10-11 and my boost is 40 with the edge on 5
 
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Old 05-06-2010, 11:54 PM
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it sounds like your lift pump i didnt think your fuel presure was suppose to drop to 5or 6 psi cant remember for sure hope somebody comes along and gives you a solid answer
 
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Old 05-07-2010, 07:29 AM
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10 PSI is the lower limit for fuel pressure. VP44's need a lot of fuel to cool, lubricate, and fill the cylinders in the head of the Injection pump. How is the boost and smoke situation when you drop the hammer?
 
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Old 05-07-2010, 10:45 AM
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from a stop the boost is around 35 when i hammer it and it smokes really good then clears up nice but when im drivin on the freeway and i drop the hammer it just barely gives a haze of smoke and it drops to what feels like 2nd gear cause my rpms are really high and my buddys truck doesnt do that it shifts down and pulls mine shifts down and holds but doesnt really go anywhere
 
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Old 05-07-2010, 11:30 AM
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is your converter locking up?
 
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Old 05-07-2010, 02:16 PM
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adjust the tv cable it's too tight. this should help with the down shift. what was done to the trans? beware of off brand tripple disc converters they may be all f'd up. Been there done that. Cut mine apart in feb they used a turbo 400 bowl, the spacing was wrong, the stator rubbed on the pump and the stall was way high. it still ran 12.38 that way, but i have picked up almost 3 mpg with the converter being set proper and my temps do not go above 180.
 
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Old 05-08-2010, 03:18 PM
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whats the tv cable? and y does his truck walk all over mine? i draged my truck yeaterday and the fastest i could get was a 15.9 and there was a 12v there with 3k springs and a 100 plate and he was runnin faster help me out guys
 


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