[Myles_S]

Can the injection pumps on the 4455's be turned up any way?

Its an early 90's model i believe. Sorry, i dont know the exact year

 

[norris]

crank up the fuel screw.

 

[Fordfreak4life]

id do some research for ya man, get back with ya monday mornin, u can crank the sh*t out of them if u can cool it

 

[norris]

haah found that out hard way, my 4450 now needs a HG. DOAH!

 

[Fordfreak4life]

gotta keep her around 205deg, we hung an aftercooler off the side of a 4755 with electric fans for pullin silage trucks in the mud, id was a blast, idk how much she was crankin but it was f'n healthy

 

[smokinstroker92]

ye man just take the cover off the back off the injection pump and turn the fuel screw in flush and she will pull hell of the hinges.LOL we got a 4440 that has more power than will ever go to the ground. I sliped th heck out of the clutch in D2 in the mud and burnt it up.:doh:

 

[PSDEng]

There's no "actual" proof but we had to dang near melt down our 4320 with the old screw trick! You can get the springs inside those pumps changed out also to crank out some more fuel.