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GDI engines

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Thread replies: 28
Thread images: 6

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Literally every car manufacturer uses these meme engines for that extra 2 MPG.

Is buying used cars the only hope now?
>>
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Yes.

>mfw DI cucks don't warm up their engine properly and fill up their crank case with fuel over time
>mfw it explodes
>>
>>16658683
Most companies are shipping air oil separators at this point. If your car doesn't have one get a fucking oil catch can. Retrofit a water injection system to spray a fine mist of water if intake air temperatures or exhaust gas temperatures start rising too high.

There, I fixed your carbon problems. The ECU over time will adapt timing. Modern engines operate at the ragged edge of the knock limit. Water injection will push the threshold further.
>>
>>16658725
>Do all these extra things so your car can act like a normal pre-2015 car
>>
>>16658857
>do these things so your engine is lighter than a pre 2015 engine while having more power and better efficiency

Or just buy a car that has both direct and port injection? Not that hard.
>>
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The only way fuel should be mixed with air
>>
>>16658683
>Is buying used cars the only hope now?
Nope, because car manufacturers are starting to go to the next generation of direct injection. That is direct injection with port injection. The use of port injection also allows the detergents in top tier gasoline to clean the intake port and intake valve of carbon deposits. Toyota was the earliest to transition to the newer method.
>>
>>16659428
>dogshit cold start capability

Ok.
>>
>>16660766
What companies haven't mentioned is that it may be needed to meet emissions as well. During cold starts stratified injection causes oil washing as the gasoline splashes on the walls of the cylinder and dilutes the oil. Port injection is actually probably better than direct injection during cold starts and during high load situations because it isn't possible to do stratified charge safely.

Any time homogeneous mixtures make more sense, direct injection stops making sense.
>>
>>16658683
>Literally every car manufacturer uses these meme
Time for the next fad item to appear on consumer product shelves.....
>>
>>16662157
>pull choke cable
>it starts just fine

Shut the fuck up you ninny
>>
>>16662157
>started my carb'd car that has been sitting for two weeks in 3 minutes last night
>28 F
lmao
>>
>>16658683
Diesel engines have been using direct injection for decades and with way higher fuel pressures than gas DI, it's not exactly a new and portly understood technology.
>>
>>16662157

Can't argue simplicity. Coming from a FI owner on all my cars.
>>
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>>16658683
>>
>>16658683
>Literally every car manufacturer uses these meme engines for that extra 2 MPG.
thermal efficiency =/= fuel efficiency
>>
File: trig.gif (4MB, 480x264px) Image search: [Google]
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>Literally
>DI cucks
>air oil separators
>water injection
>ECU over time will adapt
>ragged edge of the knock
>maxresdefault.jpg
>top tier gasoline
>>
>>16665506
>carb
>simpler than injector

Good joke, nigga.
>>
>>16667327
Who are you quoting?
>>
>>16667523
reddit
>>
>>16667573
And why are you splitting loosely connected sentences with pointless greentexting?
>>
>>16658683
Looks like I'm gonna have to add the word "meme" to the auto filter
>>
>>16665031
>28f
>cold
>>
>>16667327
>raging about technology getting better
>>
>>16667597
>all of 4chan disappears
>>
>>16667429
just because you dont understand it doesnt make it complicated.
>>
>>16668991
Conceptually EFI is absolutely simpler. A carb requires you to understand the Bernoulli effect and understand what a venturi does due to the Bernoulli effect.

EFI is just sensors and spraying fuel based on those sensors. A MAF is just a tube with a heated wire. Heated wires will vary how much they resist based on the incoming air. Simple stuff like that.

Of course transistors are fucking complicated but no one really works at that level.
>>
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>>16659428
4 venturi tubs r gud fr engun
Thread posts: 28
Thread images: 6


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