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

93 cummins Advancing Timing

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Old Sep 20, 2009 | 09:18 PM
  #1  
dieselboy1066's Avatar
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Default 93 cummins Advancing Timing

I no how to advace timing just how far i can go to a safe level
 
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Old Sep 21, 2009 | 04:19 PM
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RSWORDS's Avatar
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Stock everything, About 1/8" on teh factory marks. Maybe a little less if you tow heavy.
 
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Old Sep 21, 2009 | 08:56 PM
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As long as your stock everything, I'd seriously doubt that you could hurt anything.

Advanced timing is going to increase cylinder pressures and put more heat into the piston; it makes a given amount of boost more likely to pop a gasket and it makes a certain EGT more likely to melt a headgasket. If you're only pushing 20 PSI and 1000 degrees in the first place, advanced timing is going to result in severe power loss and acceleration lag before it hurts anything.
 

Last edited by Begle1; Sep 21, 2009 at 08:59 PM.
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Old Sep 21, 2009 | 10:34 PM
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maybe i should back off of my favorite pedal position... WFO; i've got slightly over the 1/8th bump goin, 3ish turns on full fuel and other tweaks... 30ish psi out of the H1C

---AutoMerged DoublePost---

egt's arent bad... sittin below 600 post turbo on level ground and 700 post on slight; long grades... the hotest i've gotten it was slightly below 900 post... saw it and backed out of the juice and backed it down to 55 goin up the hill; took a little while but it came down
 

Last edited by tower_ofpower; Sep 21, 2009 at 10:34 PM. Reason: Automerged Doublepost
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Old Sep 22, 2009 | 09:29 AM
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all i got done is a power pin in a brand new injection pump
 
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