Port injection vs Direct Injection #engine #engineering #injection #efi #performance #turbo #shorts

[Carlos.Rivera]

Now show us how dirty the valves get when engine doesnt have port injection

[Argox]

If I had to chose, I would bet on an engine that has both.

[marianweis]

One big plus is that port injection mixes the air way better with the fuel wich make a way better burning air/fuel mixture that tends to burn/create even pressure on the piston.(Less wear on the cylinder/piston)

[AlienLivesMatter]

Fuel air mix drawing the heat out of the intake valve has to be a useful attribute

[aapa]

It maybe worthwhile to mention the common disadvantage of direct injection engines where the intake port/s tend to have a lot more carbon build-up that cause blockage and lower volumetric efficiency. Also, the advantage of higher compression ratios(14:1) of direct injection compared to about 11:1 of port injection.

[iuriibaranov]

Я из другой страны. Но мне канал кажется более родным чем другие

[Wolfiecolada]

so you can use lower quality fuel in direct injection?

[jmack]

Pros and cons to everything, the intake runners and valves will have carbon built up.

[MayumiTheKimura]

Yeah but it's all a trade, port injection may make so fuel stays in the combustion chamber for longer tho it can be good for cooling since there's even some methanol cooled racing engines (I'm it's very different but some slowdown in overheating may occur in port injected engines, it's worth looking into)

[azerahasgotachannel]

So to fix this with port is to remove restrictions in air and fuel flow? So it spends less getting hot?

[geemy]

but there is 14x more air than gas, and the air temperature is the same ? so the AF mixture temperature isnt really different ?

[donbishow]

So why do some direct injection engines have the fuel rail buried in the engine valley?

[talihsizlermeyhanesi]

Im writing 2nd time dont misunderstand me: I wanted to ask you what if we put fan front of intake in itb turbo configuration will it make difference? If intake has very high vacuum or cfm of intercooler to intake is so high fan cant do a thing. what do you think?

[AnoNym-zity]

That's because the eu forces manufacturers to build it this way.