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

M&H fuel pin

Thread Tools
 
Search this Thread
 
  #1  
Old 09-12-2009, 03:06 PM
lodal cummins's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Aug 2009
Location: portland oregon
Posts: 462
Received 18 Likes on 17 Posts
Default M&H fuel pin

got a 92 with the crappy gertag 5 speed. what would be the best fuel pin from M&H. do they give horsepower rating on each pin? i have turned the fuel screw on the back of the pump way up and put different air intake, and 3" straight pipe. that is it!
 
  #2  
Old 09-12-2009, 10:20 PM
tower_ofpower's Avatar
Diesel Bomber
Join Date: Jul 2009
Location: Kingwood, WV
Posts: 1,861
Received 86 Likes on 80 Posts
Default

i'd put gauges in it b4 you start messin with fuel pins... the m4 and m5 have the same full fuel ammount they just adjust when it hits full fuel with a different profile. the m3 has an increased mid and top fuel but it isnt as agressive as the m4 or m5 and last but not least the m2 is a towing pin i suppose... its got a better fuel curve and a slight increase over stock... if you go into the contests and give aways M&H and dieselbombers are sponsoring a fuel pin give away for first gens... it has a description of the pins... probably easier to understand then my jumble.... be sure to enter that contest tho, cant beat a free fuel pin
 
  #3  
Old 09-13-2009, 12:51 AM
lodal cummins's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Aug 2009
Location: portland oregon
Posts: 462
Received 18 Likes on 17 Posts
Default

i should be o.k. egt wise with just messing with the fuel adjustment on the back of the pump and repositioning the stock fuelpin. kinda risky i guess! just with the back pump adjustment it rolls some good coal. i hit about 1250 rollin the coal on my 96. i need to really get a pyro/ boost set up for my 1st gen

---AutoMerged DoublePost---

the cost of everything goes up, but not my paycheck!!!!!!!
 

Last edited by lodal cummins; 09-13-2009 at 12:51 AM. Reason: Automerged Doublepost
  #4  
Old 09-13-2009, 12:52 AM
tower_ofpower's Avatar
Diesel Bomber
Join Date: Jul 2009
Location: Kingwood, WV
Posts: 1,861
Received 86 Likes on 80 Posts
Default

messin with the stock fuel pin and smoke screw wont change egt's too much... maybe just low end egt's... the full fuel screw is where you'll start running into egt problems (screw on the back) i dont know if my pyro is messed up or not but with my listed mods i havent even topped 700 yet
 
  #5  
Old 09-13-2009, 07:21 AM
921stgen's Avatar
Diesel Fan
Join Date: Apr 2008
Location: Springfield, Ohio
Posts: 77
Received 8 Likes on 7 Posts
Default

Tower ofpower, is your pyro in your downpipe, I can't remember not seeing more than 700 degrees even from a stop till 35 mph, its been a long time sense I've had a fairly stock truck. I guess that my high egt had something to do with the trans going out, engine couldn't push the truck by itself.
 

Last edited by 921stgen; 09-13-2009 at 07:26 AM.
  #6  
Old 09-13-2009, 12:27 PM
RSWORDS's Avatar
BOMBARDIER

Join Date: Mar 2007
Location: Gloucester, VA
Posts: 11,159
Received 918 Likes on 537 Posts
Default

M&H is a sponcor here. I'm sure they will be by with some advice!
 
  #7  
Old 09-13-2009, 08:56 PM
NadirPoint's Avatar
Diesel Bomber
Join Date: Aug 2009
Location: CO
Posts: 2,257
Received 186 Likes on 159 Posts
Default

Originally Posted by lodal cummins
got a 92 with the crappy gertag 5 speed.
I'll take it if you want to sell it if you ever decide to downgrade to a slushbox or NV4500!
 
  #8  
Old 09-13-2009, 09:52 PM
DieselPerformanceGuy's Avatar
Diesel Enthusiast
Join Date: Mar 2009
Location: eastern wyoming
Posts: 301
Received 2 Likes on 2 Posts
Default

[QUOTE=lodal cummins;393554]got a 92 with the crappy gertag 5 speed. \QUOTE]

i will too, if you want to sell it.
 
  #9  
Old 09-13-2009, 11:57 PM
lodal cummins's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Aug 2009
Location: portland oregon
Posts: 462
Received 18 Likes on 17 Posts
Default

i was told that that tranny was a weak link by a few. but sounds like that is not the case. have not researched it that much. guess i should do more research before calling it crappy!
 
  #10  
Old 09-14-2009, 12:41 AM
tower_ofpower's Avatar
Diesel Bomber
Join Date: Jul 2009
Location: Kingwood, WV
Posts: 1,861
Received 86 Likes on 80 Posts
Default

ahhh yeah i keep forgetting that it is post turbo... so i take that back... i havent gone over 900* corrected by the 200 rule of thumb thanks for the reminder. as for the getrag... i'm pretty sure the only downside is 5th gear... i believe you can permanently fix that problem now and it'll handle just about w/e you throw at it...
 


Quick Reply: M&H fuel pin



All times are GMT -5. The time now is 04:05 AM.