New 4 cylinder engines sound nothing like that

https://files.catbox.moe/1kodni.webm

>>28478585 (OP)
Because the majority of car buyers don’t want their engine making noise all the damn time. only enthusiasts do and enthusiasts don’t want i4s

>>28478585 (OP)
Not exactly limited to i4s. Every new car that is mass produced regardless of powerplant, sound like vacuum cleaners now. Only expensive limited run cars that can skirt a few rules sound proper. And even those are dwindling fast now. Only loud modern i4s you will encounter are poorfags just chopping up their exhaust and spending pennies to make them sound obnoxious and unrefined.

Because they used high compression and aggressive cam profiles to squeeze as much power as they could out of the engine. Unfortunately that wasn't so great for fuel economy.

Now, engines in lower end economy cars are tamed down to reach higher MPG ratings, and whenever they need more power for a "performance" model they just slap a turbo on it.

>>28478585 (OP)
Modern cars have much better control over combustion, it's damn near perfect every time.
So you don't get all the interesting sounds.

>>28478680
>high compression leads to low fuel economy
huh, haven't heard about that but curious about the technicalities

>>28478753
Sorry, got mixed up there. Meant to say it was emissions that was the reason, not fuel economy. Higher compression creates more nox and co2.

Although, I guess technically you can run a leaner a/f mixture with lower compression, but probably doesn't have too much of an effect on MPG as it would be offset by lowered power output.

>>28478585 (OP)
That sounds like that because it's either not got it's exhaust system hooked up to the manifold or the manifold isn't even on the engine there. Hope he didn't burn his exhaust valves up lol

>>28478585 (OP)
That's not an
>old inline 4
sound that's a
>blipping the throttle with ITBs or carbs at low RPM
sound. All I4s will sound like that in the same conditions. You don't know what you're talking about. Your 2020 corolla doesn't sound like it because it doesn't have open carburetors or ITBs.

>>28478875
>all I4s sound like that, CHUD!
>you just have to replace [laundry list] to make them sound like that, idiot.

>>28478882
See? You're so fucking retarded that you're not only misusing a meme, but that you don't understand that the sound has nothing to do with how old the engine is, it's 100% the induction. If you put some carbs on your shitbox instead of a plastic intake manifold with a drive by wire throttle body it would sound identical, but you're too stupid to realize it.

>Replace airbox and silencer with open cone filter on a hose clamp.
>Do not mod the exhaust at all.
>Give it some throttle and rev through the midrange 3-5k while driving.
You now have the growl. It's intake noise.

gf drives a 2007 corolla. she drives it home to see her parents all the time and it has a ton of miles and is louder than my v6 3.5L honda

>>28478680
>high compression
>mk1 gti had 9.5:1 compression
lol

>>28478921
This, you can take a brand new Honda Civic and get sicc induction noise with a rice intake, it's not an old 4 cylinder thing.

thank fucking GOD the average 4 cylinder doesnt sound like this

>>28478585 (OP)
Modern cars have resonators on the intake tube to cut down on induction noise. Retards will tell you it's for helmholtz tuning, but again, they're retards.

Mine sounds like this
https://files.catbox.moe/kvh67a.mp4

>>28479720
>https://files.catbox.moe/kvh67a.mp4
Actually this.

>>28479730
>https://files.catbox.moe/kvh67a.mp4
wikked sik muhfuhga

>>28479681
around me they all insist on diarrhoea/shart exhausts

>>28479751
https://youtu.be/uaL4zflaIT8

>>28479730
You have a Gabber party going in your engine bay

I think my 4 banga sounds good. https://voca.ro/151SM9QnxaG5

>>28480019
good but a bit boring

>>28478585 (OP)
>https://files.catbox.moe/1kodni.webm
Weber DCOE carbs = more induction noise

>>28479047
There's an easy fix to that, but I ain't telling.

>>28478585 (OP)
That's a V6.

>>28478669
>obnoxious and unrefined.
Hey, we're not here to talk about my ex girlfriend.

New engines sound bland because they're so efficient. Have you heard the new Gordon Murray V12? Sounds like a loud sewing machine. Nothing like an old V12.

>>28482064
>mk1 golf
>v6

>>28478680
Almost nothing in this post is right. Modern commuter engines are pretty much always going to be higher compression than their older counterparts. High compression makes combustion more efficient as long as you can effectively manage the knock and increased combustion chamber temps. Increased combustion chamber temps do create more nox, but not nearly to the degree that old lean-burn engines do, and is offset by the better efficency of a more complete fuel burn. Most little NA shitbox engines are 10.3:1 or greater now, whereas pre-2000s 4cyl economy engines tend to hover around mid 9s:1.
>Now, engines in lower end economy cars are tamed down to reach higher MPG ratings
Engines in modern economy cars are typically the smallest displacement they can get away with, run at the ragged edge of timing and compression that they can handle without pinging to make the most power for their small size. Then they're loaded up with emissions shit to scrub nox. Older economy engines were typically lazier, larger displacement. I doubt you could find any real examples of a specific NA engine going down in compression in subsequent model years.

Take the 710 off while idling and you head the nice gurgles

My 3 cyl gr corolla sounds pretty good
>https://vocaroo.com/11c5ggjTG5ER

>>28478585 (OP)
balance shafts in the new ones

>>28478585 (OP)
Because new car engines do have to comply with more strict emissions and noise limits. Second reason is turbocharging/supercharging that muffles away many engines own natural sounds, then replaces those muffled sounds with whistle and whooshing sounds. Turbocharging adds low pitch compressor sound type rumbling to engine idle sound that you can also hear with many idling turbodiesel engines. Thats a reason why I have said long time ago that forced induction generally ruins engine sounds. High compression ratios alone has nothing to do with this.

Third reason is the bigger size engine beauty cover that is part of engine sound deadening so you dont hear the sounds of the cam gear, valve train, fuel direct injection so loudly. With some cars there actually is a sound deadening mat or foam that's glued/mounted at the bottom of the engine beauty cover. You can test this difference in engine sound by taking off the beauty cover then putting it back on the engine couple times when engine is idling. Just make sure not to wear any jewelries or loose clothing so nothing gets caught to engine's moving parts.

4th reason is the difference in timing chains, modern engines use more silent/lower friction timing chains than those 23 year old engines that more often had thicker, dual row timing chains. Modern engines also use low tension piston rings. if you compare something like 50 year engine to modern engine, then 5th reason is the difference in engine cooling system. Those 50 year old engines had air/oil cooling while all modern engines have liquid cooling system. Liquid cooling system also makes engines quieter than air/oil cooling.

>>28482064
lol

>>28478917
Why are you arguing with a /pol/ mutt? At most you'll get nothing but 'you vill pod & bugs' posting.

>>28482078