Exhaust farty popping noises ?
Discussion
The RS3 sounds good, in my opinion. As much as It pains me to say it, not liking the Audi brand at all for no real, justifiable reason.
2.0 4s can be generic, I'd agree, but it's only the Golf R where I've actually thought 'my God, that is bad/funny/embarrassing.' Never heard it's cousins - such as the Cupra - before so not sure if they're as bad?
2.0 4s can be generic, I'd agree, but it's only the Golf R where I've actually thought 'my God, that is bad/funny/embarrassing.' Never heard it's cousins - such as the Cupra - before so not sure if they're as bad?
Pica-Pica said:
It seems the louder the exhaust, the slower the car...
You mean like RS3s and A45s?Our A45 does it. 380BHP ish. 0-60 in 4 seconds ish.
I dont purposely make it do it, it just does it under conditions where you're pushing on. If that happens to f
k some people off, thats just an added bonus 
Lord Marylebone said:
Last time I drove one of those Merc AMG A45's it did the whole 'gunfire during gearshifts' thing.
For the first 1 mile it was amusing, and then it was just annoying and to me, fake sounding, as though the pops and bangs were programmed in a sort of the fuel/ignition map?
It does it when you're pushing on. Under normal driving it generally wont. For the first 1 mile it was amusing, and then it was just annoying and to me, fake sounding, as though the pops and bangs were programmed in a sort of the fuel/ignition map?
swerni said:
Riley Blue said:
Pointless and irritating. If a car can't sound good without artificially engineering it, it doesn't deserve to be on the road.
how do you define " artificially engineering"?Serious question
If 19 year old Barry does it to his Mk6 Fiesta Zetec S it's chavvy, but it's apparently OK when an OEM does it
daemon said:
Lord Marylebone said:
Last time I drove one of those Merc AMG A45's it did the whole 'gunfire during gearshifts' thing.
For the first 1 mile it was amusing, and then it was just annoying and to me, fake sounding, as though the pops and bangs were programmed in a sort of the fuel/ignition map?
It does it when you're pushing on. Under normal driving it generally wont. For the first 1 mile it was amusing, and then it was just annoying and to me, fake sounding, as though the pops and bangs were programmed in a sort of the fuel/ignition map?
I'm not singling you out, but the artificial overfuelling for dramatic effect in modern 'hot hatches' is just a little bit council IMHO. It's put there to keep the punter entertained.
J4CKO said:
Alucidnation said:
Don't any of your cars do this OP?
Mine will do the dump valve "tshh" and wastegate noises but I dont drive it round car parks at speed.Not jealous, I like a nice fast hatch etc but blasting through a busy car park isnt a great idea really is it ?
It's an odd one really because back when cars did it naturally, manufacturers did their best to engineer such behaviour out. Since that got harder and harder to do as the engine got more highly tuned, it became associated with fast cars and hence ultimately viewed as "desirable", at least to some people.
For me, it's akin to intentionally making a car break down regularly in order to simulate how an old high performance engine would behave.
For me, it's akin to intentionally making a car break down regularly in order to simulate how an old high performance engine would behave.
gavsdavs said:
When you say "pushing on", what I think you really mean is "Open the throttle wide enough for the ECU to think you want lots of power". it's not very hard to do that, and is exactly what people are doing to trigger the noise.
I'm not singling you out, but the artificial overfuelling for dramatic effect in modern 'hot hatches' is just a little bit council IMHO. It's put there to keep the punter entertained.
With 380BHP or so on tap its very rare you need to push on under normal driving conditions to the extent whereby the ECU needs to give you "lots of power" and thus you get the farty noises.I'm not singling you out, but the artificial overfuelling for dramatic effect in modern 'hot hatches' is just a little bit council IMHO. It's put there to keep the punter entertained.
For example if you're just overtaking someone normally the car isnt exerting itself and thus you dont get the noise.
If some "hot hatch" with 200bhp ish does it all the time because you're using more of the power all of the time then thats a different story. Does a mk7 Golf GTI do it?
I love the sound of a performance car popping and banging. I'm not a fan over fakery though and the term 'DSG farts' is pretty much spot on.
I actually really like cars like the A45, RS3 etc. but the noises they make are a bit cringey as they're forced. Chap in a grey RS3 pulls out of train station on the commute home, hammers it off up the road on a cold engine and the thing still crackles and bangs with each gear change.
Don't get me wrong, as petrolheads the noise and engine makes is important. But freeing up the sound and forcing it are slightly different.
I actually really like cars like the A45, RS3 etc. but the noises they make are a bit cringey as they're forced. Chap in a grey RS3 pulls out of train station on the commute home, hammers it off up the road on a cold engine and the thing still crackles and bangs with each gear change.
Don't get me wrong, as petrolheads the noise and engine makes is important. But freeing up the sound and forcing it are slightly different.
The M140i does three pops which make a "BUBUBUB" noise on the overrun in Sport and Sport+ modes. They are completely consistent, every single time, which highlights their artificial nature even more. There's also a slight fart on upshifts on hard throttle, but it's pretty subtle. The engine makes a decent noise as it is, and doesn't need this artificial nonsense, in my view, but it clearly bothers me less than a lot of other road users.
Thing is, it comes as part and parcel of the driving modes you want to be using, so it's not like you have much choice in the matter. Of course, if you're driving like a tit in a built up area to "show off" these noises, it is a bit sad, but in my neck of the woods, the offenders are more likely to be driving V8 Mustangs than hot hatches. Watched one in Farnborough a few weeks ago driving along a 30 mph residential street by accelerating from walking pace to the top of 2nd gear, lifting off to a chorus of pops and bangs, braking hard to avoid hitting the car in front up the chuff, going down to walking pace to build a gap, and repeating. I believe he genuinely thought everyone was looking at him in awe.
Thing is, it comes as part and parcel of the driving modes you want to be using, so it's not like you have much choice in the matter. Of course, if you're driving like a tit in a built up area to "show off" these noises, it is a bit sad, but in my neck of the woods, the offenders are more likely to be driving V8 Mustangs than hot hatches. Watched one in Farnborough a few weeks ago driving along a 30 mph residential street by accelerating from walking pace to the top of 2nd gear, lifting off to a chorus of pops and bangs, braking hard to avoid hitting the car in front up the chuff, going down to walking pace to build a gap, and repeating. I believe he genuinely thought everyone was looking at him in awe.
daemon said:
With 380BHP or so on tap its very rare you need to push on under normal driving conditions to the extent whereby the ECU needs to give you "lots of power" and thus you get the farty noises.
For example if you're just overtaking someone normally the car isnt exerting itself and thus you dont get the noise.
If some "hot hatch" with 200bhp ish does it all the time because you're using more of the power all of the time then thats a different story. Does a mk7 Golf GTI do it?
The majority of moden 4pot turbos do it. The behaviour certainly seems to have been put there by the OEM for the owner to exploit (for attention, i guess)For example if you're just overtaking someone normally the car isnt exerting itself and thus you dont get the noise.
If some "hot hatch" with 200bhp ish does it all the time because you're using more of the power all of the time then thats a different story. Does a mk7 Golf GTI do it?
If you look at slightly older 4pot turbos, they don't do it unless the driver is really trying to provoke it.
Don't a number of them actually inject fuel into the exhaust directly ? I.e it's not even a direct consequence of actual overfuelling, they worked out how to make the noise on purpose ?
“In a traditional manual transmission, when you shift gears, you lift off the throttle slightly to allow the revs to stabilise and drop slightly whilst engaging the next gear. An automated manual transmission requires the same sort of action, however since drivers don’t have to use the clutch and gear shift themselves, they often kept their right foot planted flat on the throttle – as you do in a car with an automatic transmission. This causes the revs to rise, and when the next gear engaged, there would be a massive jerking sensation as the gearbox was not in sync with the engine speed.
In order to circumvent this, Volkswagen came up with the concept of retarding ignition timing at the crucial moment of the gear change, effectively mimicking the act of lifting off the throttle. However fuelling and valve timing remain unaffected under this programming setup. This results in excess fuel being deposited into the combustion chamber, remaining un-ignited. When the next gear is engaged, ignition of the fuel is resumed via the spark plugs, and the excess fuel in the combustion chamber and exhaust manifold ignites creating that lovely “vroomph” fart/burp that we all know and love.”
So it’s there to ensure smoother gear changes.
In order to circumvent this, Volkswagen came up with the concept of retarding ignition timing at the crucial moment of the gear change, effectively mimicking the act of lifting off the throttle. However fuelling and valve timing remain unaffected under this programming setup. This results in excess fuel being deposited into the combustion chamber, remaining un-ignited. When the next gear is engaged, ignition of the fuel is resumed via the spark plugs, and the excess fuel in the combustion chamber and exhaust manifold ignites creating that lovely “vroomph” fart/burp that we all know and love.”
So it’s there to ensure smoother gear changes.
gavsdavs said:
daemon said:
With 380BHP or so on tap its very rare you need to push on under normal driving conditions to the extent whereby the ECU needs to give you "lots of power" and thus you get the farty noises.
For example if you're just overtaking someone normally the car isnt exerting itself and thus you dont get the noise.
If some "hot hatch" with 200bhp ish does it all the time because you're using more of the power all of the time then thats a different story. Does a mk7 Golf GTI do it?
The majority of moden 4pot turbos do it. The behaviour certainly seems to have been put there by the OEM for the owner to exploit (for attention, i guess)For example if you're just overtaking someone normally the car isnt exerting itself and thus you dont get the noise.
If some "hot hatch" with 200bhp ish does it all the time because you're using more of the power all of the time then thats a different story. Does a mk7 Golf GTI do it?
If you look at slightly older 4pot turbos, they don't do it unless the driver is really trying to provoke it.
Don't a number of them actually inject fuel into the exhaust directly ? I.e it's not even a direct consequence of actual overfuelling, they worked out how to make the noise on purpose ?
With the A45 you dont get it all the time though. I dont mind it when it does it. All part of the experience. As i said if that happens to piss other people off its just an added bonus
Tuvra said:
I seen an RS7 in Manchester the other day, guy floors it and lifts off, as he lifted the car made a ridiculously loud crackling sound for about 3 seconds.
I thought it was brilliant! Then again I'm not a miserable old sod stuck in the 1990's
Dont get me wrong, I am not against noisy exhausts (had a 350Z with an aftermarket Stainless system on) , just feel that it is encouraging some to drive faster and more aggressively to trigger it in inappropriate situations, time and a place. I thought it was brilliant! Then again I'm not a miserable old sod stuck in the 1990's
Thing is the 350Z sounded pretty good without needing to put my foot down, in fact sometimes I wanted it to shut up as you wanted a bit of acceleration and it sounded like the car equivalent of Brian Blessed shouting when you wanted quiet progress.
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