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

just got a 1991 12v what is the best first mod?

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Old Oct 6, 2009 | 09:02 PM
  #11  
smilesyota's Avatar
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get the 20$ spring and then the 105$ fuel pin from denny T !!! this made my truck come to life!
 
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Old Nov 3, 2009 | 09:59 PM
  #12  
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were do i order a denny t or a m&h m2?
 
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Old Nov 3, 2009 | 10:37 PM
  #13  
muskrat's Avatar
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First of all the denny t and the M&H M2 pin are quit a bit different, the denn t pin is way more agressive - a deeper profile - more fueling. The M2 pin is one step beyond stock and a great upgrade for towing applications. The M3 is good for towing and playing The M4 is getting into the smokey performance realm and the M5 is like the denny t. Good and smokey and the most fuel you'll get out of a fuel pin. The M&H pins are awesome because you have a choice to pick from to suit what you want. You can go to Price Quote - Request A Price - Diesel Bombers and you'll get hooked up. Or you can go to M&H Inc. in the sponsor section and PM Alwaysworking about ordering a pin.
 
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Old Nov 4, 2009 | 04:57 PM
  #14  
Richie O's Avatar
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The m2 is pretty deep just further up the pin. It gave me 6 to 7 pounds of boost from a stocker turned to deepest.
 
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Old Nov 15, 2009 | 08:53 PM
  #15  
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what other mods have you done? exhaust? with the pin and spring and a few tweaks of the screws has it helped your truck alot?

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thank you all for the information i have alot of work to do my truck is bone stock '92 with 110xxx miles 5 speed i am going to get gauges and then work on the 4"exhaust. i plan on using all your information and guidance to keep from screwing up my pump when i start turning screws on the pump. so be ready for alot of questions if you dont mind. its xmas time so it will be a after new year project. thanks again
 

Last edited by nfatuation021; Nov 15, 2009 at 08:53 PM. Reason: Automerged Doublepost
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Old Nov 16, 2009 | 08:24 PM
  #16  
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Turn the pump up!
 
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Old Nov 16, 2009 | 08:57 PM
  #17  
RSWORDS's Avatar
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Originally Posted by muskrat
First of all the denny t and the M&H M2 pin are quit a bit different, the denn t pin is way more agressive - a deeper profile - more fueling. The M2 pin is one step beyond stock and a great upgrade for towing applications. The M3 is good for towing and playing The M4 is getting into the smokey performance realm and the M5 is like the denny t. Good and smokey and the most fuel you'll get out of a fuel pin. The M&H pins are awesome because you have a choice to pick from to suit what you want. You can go to Price Quote - Request A Price - Diesel Bombers and you'll get hooked up. Or you can go to M&H Inc. in the sponsor section and PM Alwaysworking about ordering a pin.
It should be said that all teh M&H pins have teh same max fuel at max boost, some are just less aggresive getting to that point.
 
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Old Nov 17, 2009 | 09:40 PM
  #18  
seandonato73's Avatar
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From: lebanon, Pa
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well i'm working on getting all four pins so as soon as i have them i'll put up a post about how they worked in my truck... should have them payed for in about a month, allwaysworking is a great guy,couldn't ask for a better person to deal with!!!
 
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