Effects of Nozzle Size on Injector Function

Рет қаралды 5,857

4 жыл бұрын

An S&S Diesel Motorsport common rail injector is more than a precision nozzle. It's a complete system of components that are modified for optimal fuel delivery.
#SSfueled #FridayFuel

Пікірлер: 13

@rohitsvs1 4 жыл бұрын

Thank you so much!😊 Very Clean,informative!👍🏻

@bcbloc02 3 жыл бұрын

Good technical video.

@cesarlaso356 Жыл бұрын

So large nozzle injectors will flow just as little as stocks because of inmproper pressure balance between control area and needle area. Translation: large nozzles are lazy and extend duration time and injector duration with the same energize time. The goal is to mimic stock injector timing with larger higher flowing nozzles. Question- how much bigger of a nozzle before body modification is needed? In other words, accepted timing goes out of spec at what percentage of the nozzle being enlarged. I want to do 60% nozzle swaps. Thank you.

@SSfueled Жыл бұрын

Large nozzles are slower to open, but close the same, if not slightly faster due to the pressure imbalance. They size of the nozzle it's self does not extend duration, that's a function of needle lift, or going to far with it. We do not see a benefit in doing body mods until 250% over nozzles are used. The balance we are looking for is proper injection profile vs manageable pilot quantities. There're no need for body mods with 60% over nozzles.

@MangoMike316 Жыл бұрын

Will this work on the new HO engines?

@jaffasoft8976 3 ай бұрын

Would it be right that a larger slower spray will be good for running alternative fuel in old diesel engines, such as vegetable oil, which combusts slower then regular diesel and also advancing the timing a little also in the engine would help?

@SSfueled 3 ай бұрын

It all depends. There are many variables, yet engines that run at a lower RPM can get away with more injection duration before spraying outside of the bowl. Our testing has been focused on diesel fuel in common rail engines that are for competition in most cases. Since these engine run in excess of 5,000 RPM we have found that it's important to get fuel in the cylinder quickly. As for longer duration on mechanically injected engines running on vegetable oil, we do not know since we have not tested it. You could be on to something.

@jaffasoft8976 3 ай бұрын

@@SSfueled Yeah, that game you're in is much different at a wild guess. Mostly i've heard that the veg oil burns slower and advanced timing is usually mentioned in general. Just thought you might have known a more specific answer since your playing with good machines to get feedback. But i guess you wont know until you've actually put veg oil in and ran some tests. All veg oil is different too. Lots of variable.