direct vs port injection vs carbs

>>14186823
>carbs
Holy shit are you a time traveler?

Direct + port injection. Ask Toyota.
Or Subaru since Toyota taught them

>>14186823
port injection is best. direct injection complicates the engine a lot for a small gain.

>>14186896
Same argument people give for efi vs carbs or dohc vs pushrods.

Port injection keeps the intake ports and valves clean.

>>14186823
Nippon steel #1

Carbs are stupid, port injection wins outright.

On port vs direct, direct injection gives you highest efficiency and performance, but it'll come at an increased maintenance cost.

>>14186823
port
what this guy >>14186986 said

>>14186935
so what, in this case it's true :) EFI and dual overhead cams don't break or need maintenance. It's just a higher initial cost or a better design. This is not the case with direct injection. If it were, it would be better.

>>14186823
>made_in_china.gif

>>14186842
Wait, that would mean he took direct injection back to the 1940's. Carbs would just make him fucking old.

>>14186823
EFI Carb

File: attachment.png (368KB, 854x550px) Image search: [Google]

368KB, 854x550px

>>14186853

>>14186896
You eliminate the need for intake valves in di how would it make it more complicated?

>>14190692
No.. you still need intake valves in order to take in air

>>14190679
This is such a poorly drawn diagram. Impossible to make shit out.

>>14190692
>>>/n/

>370z doesn't have DI
>Gen Coupe does
Why?

>>14190755
what is unclear ?
I get the feeling you have not seen many diagrams

>>14190698
direct air injection
now you only need exhaust valves

>>14190919
All the random mesh lines for one that are completely unnecessary.

File: 2GR-FSE_combustion_chamber.png (86KB, 549x556px) Image search: [Google]

86KB, 549x556px

>>14190968
must have used cad cam as a quick way to give a cross section view