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

400-450 hp goal

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Old Dec 15, 2011 | 07:42 PM
  #11  
turbo2332's Avatar
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why does your head have to come off for studs or 60lbs springs?
 
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Old Dec 16, 2011 | 05:49 PM
  #12  
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Originally Posted by turbo2332
why does your head have to come off for studs or 60lbs springs?
It doesnt have to come off for the springs, and doesnt necessarily have to for studs either. But the point of putting in studs is for the head to seal better under high pressure, but if the head is not flat (the surface has become slightly warped over time) a head gasket could still blow even though the studs are in. The point of taking it off to go get it decked (resurfaced), as a flat head seals much better than one that is not.
 
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Old Dec 16, 2011 | 06:37 PM
  #13  
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well thank you but it was intended for 93ford not my personal knowledge.
 
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Old Dec 19, 2011 | 06:47 AM
  #14  
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if i go changing valve springs i want a valve job done. i'm not gonna bring the whole motor into my local pump shop to have a valve job done. but i'm gonna pull the head regardless, i want to check the pistons before installing the motor and resurfacing the head wouldnt hurt.
 

Last edited by 93ford; Dec 19, 2011 at 07:00 AM.
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Old Dec 19, 2011 | 06:24 PM
  #15  
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you cant push a auto past 3200 unless you have different gasser shift springs in your vb or you do it in neutral or manually shift it and mess up the shifts

i can put my pedal on the floor and it shifts right at 3000 1st-3rd, i control OD but even if i leave it out of OD i can push it to 85-90 and not go over 3200 without even trying to go soft on the pedal

a manual tranny is easier to go past the limited but isnt that hard to control
 
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Old Dec 19, 2011 | 07:01 PM
  #16  
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i'm using my zf5. manual ford tranny
 
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Old Dec 31, 2011 | 03:57 PM
  #17  
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I have the $1,300 Garmon kit in my 95 and it works great....just a light haze and 430 to the wheels.
 
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Old Jan 21, 2012 | 04:53 PM
  #18  
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alright, little update. changed my plans a bit. still buying parts, want the engine complete before I do the swap.

heres my new plans, let me know if you see any bottlenecks or weak points

4kgsk
60 lb valve springs
AEM 2059BF (twice the cfm of a bhaf for $10 more)
370 injectors with the correct spray pattern
62/68/14
A1 studs
#100 plate
AFC tuning
16* timing
4" exhaust
valair 550hp clutch

am I at 450 hp or more here? 370s equate to 90 horse injectors I believe, is that enough fuel? should I look into dvs as well?
 
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Old Jan 30, 2012 | 03:17 PM
  #19  
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Originally Posted by 93ford
alright, little update. changed my plans a bit. still buying parts, want the engine complete before I do the swap.

heres my new plans, let me know if you see any bottlenecks or weak points

4kgsk
60 lb valve springs
AEM 2059BF (twice the cfm of a bhaf for $10 more)
370 injectors with the correct spray pattern
62/68/14
A1 studs
#100 plate
AFC tuning
16* timing
4" exhaust
valair 550hp clutch

am I at 450 hp or more here? 370s equate to 90 horse injectors I believe, is that enough fuel? should I look into dvs as well?
90's and a 62 should get you close. If you do more fuel (DV's or 5x.014's) you could run the 62 but it would be better to up the turbo a little too.
 
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