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

M&H M4 fuel pin

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  #1  
Old 10-23-2009, 01:43 PM
muskrat's Avatar
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Default M&H M4 fuel pin

Today I blotted out the sun. At about 10 am the post man brought me a little package containing my M&H Inc. M4 fuel pin. I just ordered it on monday and wasn't expecting it yet, so being my own boss, I called in sick. I popped the hood on the old girl and in 10 minutes I was heading down the road. I took it on the highway toward a good grade with the intentions of making some smoke. Making smoke I did. I pegged almost 30 pounds of boost compared to about 24 pounds with the stock pin. I'll keep driving it and making some more tweeks on the pump till I get it where I realy like it. My smoke screw was alresdy flush with the jam nut, and I left it where it was. Richie O has reported on the M2 profile, and seems to like it. I know I'm already loving the M4. For those of you that don't know about M&H fuel pins, they offer 4 different profiles for you to choose from, which is awesome! So, hopefully some more of you first geners will go with these pins, so we can hear how all the differnet profiles perform.
 
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Old 10-23-2009, 02:53 PM
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AWESOME!

You might want to back up teh smoke screw some, my truck spools up better with it all the way out.
 
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Old 10-23-2009, 03:06 PM
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When I made mine I had to back the smoke screw way out to keep it at a sane smoke level.
 
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Old 10-25-2009, 05:59 PM
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i got the m&h #5. and loving it.. it woke it up, thats for sure.
 
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