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

homade 3k washer 12 valve

  #1  
Old 12-13-2009 | 09:26 PM
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Default homade 3k washer 12 valve

I have heard that you can put a washer on the governer spring to get 3k. Does anyone know about this? If so can give me good details and maybe pics? Also will it hurt anything?
 
  #2  
Old 12-13-2009 | 09:54 PM
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yes it can be done, and I don't recommend it. reason being is that i have done it before and it worked flawlessly, and the last time i did it i didn't get the washer seated correctly and it cost me a $1300 p-pump.

if it were me i'd spend the $95-$100 to get the springs to do it right than skimp and then have to buy another injection pump......
 
  #3  
Old 12-13-2009 | 09:58 PM
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thanks
 
  #4  
Old 12-13-2009 | 10:33 PM
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I've only done research and haven't tried it yet, but can't the stock springs be tightened down a few notches without hanging?
 
  #5  
Old 12-13-2009 | 11:48 PM
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As Benjamin said spend the $90 and get the kit that way youll get the springs for the 4k kit also. $90 is alot better than $1300. Plus you might as well put the 4k kit in as your in search for a larger turbo and the 4k kit fuels harder than the 3k which will help in spool up time also.
 
  #6  
Old 12-14-2009 | 08:37 AM
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then he would need valve springs also ?
 
  #7  
Old 12-14-2009 | 08:41 AM
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yes get the 60# valve spring too whilst yer at it
 
  #8  
Old 12-14-2009 | 08:43 AM
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no need for them unless you are going to a 4K kit....stock springs are good to 3200 RPM or so....even then a 4K kit in an auto will not get above 3200 unless you are holding it in gear.
 
  #9  
Old 12-14-2009 | 01:50 PM
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^^^^^^ What he said!

BTI
 
  #10  
Old 12-14-2009 | 01:59 PM
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I am not sure why on a street truck anyone worries about the 60 lb valve springs as 99% of the time there is no place we can wind the trucks out hard enough to utilize them anyway.

Throw in the added fact that most ALL 12v trucks HP/Tq numbers drop like a stone off a cliff above 3g's anyway there is not much reason to live up there on the highway.

Now,if your pulling/drag racing then there may be a chance you need them.
 

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