John Deere 4020 injection pump modification for tractor

JerredWayne · Jul 6, 2023

Hello, I have a 4020 that I put a 4320 manifold and turbo on and had the pump worked over. My question is if I change the pump head to a 5010 pump head going from 330 to 370 cc how much horsepower increase will I get?

Dieseltech · Jul 6, 2023

The 5010 came with the .330 head too. The 5020 has the .370 head. Power depends on the plunger roller to roller setting, larger plungers need less stroke to get the same
fuel delivery at full load than the smaller plungers will.

buickanddeere · Jul 7, 2023

You have installed an EGT upstream of the turbo ? Too hot from too much fuel and there will be valve, turbine and piston failure .

JerredWayne · Jul 7, 2023

(quoted from post at 00:20:43 07/07/23)
You have installed an EGT upstream of the turbo ? Too hot from too much fuel and there will be valve, turbine and piston failure .

es, it is only used for planting 50 acres of corn and soybeans and food plots and 1 pull a year currently. It has 650/65/38 rubber on it. It s just a toy now days.

John Deere 4020 injection pump modification for tractor

JerredWayne

New User

Dieseltech

Well-known Member

buickanddeere

Well-known Member

JerredWayne

New User

Similar threads