We typically do this on our 205cc+ fuel injectors but we can accommodate any size you have in mind. ![]() Maybe it’s time to go up a nozzle size, let’s talk about a 75% injector nozzle. What if you want more power than the 30% nozzle can provide you? That is where larger injector nozzles come in and shine. The 30% injector nozzle is very versatile, and that is why it is our most popular. But, the real benefit to this nozzle is that it is small enough to atomize the fuel well and work well with towing and daily driving while still running clean and cool. For example, a 30% nozzle has no problem flowing enough fuel to make 600 horsepower at the rear wheels. This nozzle is small enough that it still atomizes fuel well, but increases size enough to make a very noticeable difference in power. For instance, most of our 6.0 Power Stroke injector 155cc-190cc customers run 30% nozzles and that is our most popular size nozzle. So what nozzle is right for you? Well that greatly depends on what you use your truck for and what size injector you are interested in. You can pull pulse width back in the tuning but the nozzles are not variable size so the fuel is just going to atomize or spray different. No matter who is tuning the vehicle, you cannot change the mechanical size of the injector through tuning, it is what it is. It just changes the ability to empty that injector in a different amount of time. It does not make a “stock” fuel injector flow any more fuel than it already does. The nozzle only dictates how fast you can deliver X amount of fuel. For this reason, someone using their truck mainly for towing or daily driving, without a lot of modifications, are generally happier and better off with a smaller nozzle such as a stock-30% size. With good atomization you will get better fuel mileage, less smoke, and lower exhaust gas temperatures. Why is atomization of the fuel so important? When your fuel is atomized well, it burns better, cleaner, and makes good, clean power. For reference:Īnd this goes on through every nozzle size. ![]() What do the nozzle sizes mean? Well the % of nozzle size is just the amount of fuel that nozzle is designed to flow over stock size. So obviously, the smaller nozzle will have smaller spray orifices and the larger size nozzle will have larger spray orifices. With the same amount of injection pressure applied, the smaller nozzle will atomize the fuel better due to the smaller spray holes while the larger nozzle will not atomize as well, but it will flow more fuel in the same amount of allotted time. What does it do anyway? The nozzle is the last part of the injector before fuel enters into the cylinder to be combusted. The nozzle’s main function is to spray the fuel in the cylinder in an atomized state (a mist) so it can be easily ignited to burn and therefore run the engine to the best of its potential. ![]() Let’s start with the function of the nozzle. Another question we get frequently here at Holders Diesel is, “What size injector do I go with, and more importantly what size nozzle?” We are going to cover fuel injector nozzles in this article.
0 Comments
Leave a Reply. |