Re: Diesel injector pumps: More HP?

Posted by James2 on August 14, 2005 at 12:49:11 from (207.179.239.4):

In Reply to: Diesel injector pumps: More HP? posted by LD5030 on August 14, 2005 at 06:50:26:

Without going to a lot of detail, yes you can increase hp by just turning up the pump without more rpm on an NA engine up to a certain point. Then you will require a softer governor spring to effective utilize the higher pump settings, or you can increase rpm's. Increasing the rpm coupled with increasing the pump is more effective because HP=(torque,in ft/lbs)X(rpm)/5252. On an NA engine you can gain power/torque by adding fuel until you reach stoichmetric conditions. This means you are burning all the air available. The problem is you will be putting out more smoke than a poorly run locomotive. If run this way very long, burned/melted pistons, valves and so on will be your reward. We have run diesel NA engines APPROACHING this limit for approximately ten minutes, without breaking. Samething with a turbo engine, with all the extra air, can pump even more fuel in until you reach stoichmetric conditions or until something breaks. With a turbo this is hard to do because it will give more air until it "chokes" or "stalls". Then the air supply plumments and power level falls off a precipice, but you are still pumping in the fuel for an instant, until the rpm's also drop. You can solve this by installing a larger turbo (either the turbine housing or compressor housing or both) and just run the engine until it does break. What I have written is just a quick explaination, and left a few "holes" which could use some more detail.

Follow Ups:

Post a Followup Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]