PSI

[Mark Page]

How much pressure does a diesel engine use to force fuel through the injectors? No doubt not all are the same.

 

[Harry in Ky]

You're right, they are not all the same. Nozzle opening pressures can vary quite a bit for any number of reasons. I have seen some as low as 1800 psi and others at 3000 plus. Most tractors will fall in the 2200 to 2800 psi range

 

[dex3361]

How much pressure does a diesel engine use to force fuel through the injectors? No doubt not all are the same.

Indirect injection is around 1500 PSI and common rail injection around 15000 PSI and yes it varies with different systems. at least thats what i have read.

 

[Xfaxman]

How much pressure does a diesel engine use to force fuel through the injectors? No doubt not all are the same.

Some diesel truck engines are over 20,000 psi., my Duramax is 23,000 and newer ones are higher.

 

[catdozer]

All depends on your pumps and injectors. I have a modified LBZ D-Max and I have a custom set of injectors and when in order to have keep fuel going at full HP I'm running close to 40,000psi. In the last few months since I've updated my fuel system I've doubled my HP and little over tripled my torque