5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

hx40 spool

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  #1  
Old 07-10-2011, 04:15 AM
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Default hx40 spool

hey guys i got a hx40 on now and it spools ssssooooo slow!
just wondering if you guys got any tips on making it spool faster cus when it does its a beast i know im getting enough fuel but the low end just absolutely sucks
any help will be appreciated thanks
 
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Old 07-10-2011, 10:31 AM
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change it into a hx35/40 hybrid since i see you say you have allready tuned the afc
 
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Old 07-12-2011, 10:28 PM
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what size is exhaust housing? i thought i had a fine tuned afc and my hx35 wouldnt spool for a while took it to my buddies house he played with it a little and it spooled alot quicker. how much is your pre boost fuel screw adjusted? what about your star wheel
 
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Old 07-14-2011, 10:31 PM
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i been tuning on the afc on my wifes ppumped 24v for 2 days now trying to get it right where i want it, and think a 40 is hard to spool? try a S475 as a single
 
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Old 07-15-2011, 07:59 PM
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ha ha thats when u cam it and throw some fuel to it and hope for the best
 
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Old 07-16-2011, 01:35 PM
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it has a 181/220 cam and 7x12 SDX injectors with the pump set at around 450cc....

its coming around tho i've got it were i can drive it on the street just dont expect to step down on it and pass somebody without buildin some boost first
 
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Old 07-16-2011, 04:29 PM
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ha ha well you know more about that then me
 
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Old 07-17-2011, 09:37 PM
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Originally Posted by cummin_un_glued
it has a 181/220 cam and 7x12 SDX injectors with the pump set at around 450cc....

its coming around tho i've got it were i can drive it on the street just dont expect to step down on it and pass somebody without buildin some boost first
just hook up a TPS hooked into a progressive nitrous controller. the more you hit the go pedal the more of a shot she gets ... bet it spools than
 
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Old 07-17-2011, 10:05 PM
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sure dave but we both know how legal that is for pullin....
 
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Old 07-18-2011, 01:31 AM
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ha ha aint water meth etc. has to be unhooked for a pull too?
 


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