Why are performance-oriented inline-4's almost always 2.0L?

>>16896560
>Why are performance-oriented inline-4's almost always 2.0L?
rod to stroke ratio

displacement tax

>>16896560
Usually I4s bigger than 2.0L require balance shafts

Why not 3?

>>16896560
My crawler has a 5.7L 4cyl.

File: Mazdaspeed-3-lip-spoiler-700_lvt3-ue.jpg (147KB, 700x466px) Image search: [Google]

147KB, 700x466px

>>16896578
Does the Focus RS and MZS3 use balance shafts? Those are 2.3L

The S2000 also got a 2.2L engine later

File: IMG_6125.jpg (2MB, 3264x2448px) Image search: [Google]

2MB, 3264x2448px

>>16896560
Stroke that rod baby.

>>16896601
Yes the both do. Balance shafts arent bad, they rob the engine of a little power and efficiency, but they reduce first and second order engine imbalance.

People do balance shaft deletes, but I think that is silly personally, especially on a car like an S2000 that spins to 9000 rpm. I want that balance.

>>16896682
Shit im wrong, no shaft on a S2000 apparently

>86x86
/thread

File: 1392072988159.gif (2MB, 350x315px) Image search: [Google]

2MB, 350x315px

>>16896560
Japan's engine taxation.

>>16896573
>>16896743
This

>>16896560
my performace oriated i-4 is 1.8l and I wouldn't have it any other way
>that fuel economy in a pure bred sports car

The Sentra Spec V is a 2.5L and the Evo X is a 2.4L

File: 1982-porsche-944-s2[1].jpg (225KB, 1500x844px) Image search: [Google]

225KB, 1500x844px

Three liters, bitches.

>>16896743
This for the most part.

Now the real question is, how come we don't get some sweet wide bore, short/normal stroke I4s like the Porsches used to have?

>>16898854
Because you faggots like turbos and V6/i6 engines

Smaller lighter things rev easier

File: IMG-20170320-WA0007.jpg (11KB, 295x202px) Image search: [Google]

11KB, 295x202px

>>16897147
>pure bred sports car
>i4 1.8l

86x86 is the best bore stroke combo

>>16899091
86 is the god number

>>16896560
>Why not 2.4/2.5 for the extra displacement?
More displacement makes the engine less smooth, weigh more, and take up more space. Those are all negative attributes outside the autistic statistics benchracing of /o/. For an example of /o/ being /o/ I refer you to this post:
>>16898826
>The Sentra Spec V is a 2.5L and the Evo X is a 2.4L

First example given is a shitbox that was just barely the fastest-accelerating non-turbo front-driver of its time; literally who cares the car.
Second example given is a car that doesn't exist; possibly poster confused a Ralliart with an actual Evo.