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Exhaust- / Sound Discussion

Interesting, not quite the same manual as my handbook.

Had a couple of nice loud pops on the way home today (including one a few seconds after I dropped the boss off next to the Ford dealership :p ) so the higher temperature obviously helps.
 
It doesn't pop at temperatures below 4°C (give or take a few degrees). It is programmed to protect the engine, for what I don't know. Also when the exhaust temp is to high it will stop popping.
Nothing to do with the higher octane, just a coincidence.
There is an extra injector in the exhaust that causes the pops (sort of an afterburn), so the higher resistance against knocking isn't the cause.

have popping also at -5°C. don´t think that there i something programmed. sometimes it works sometimes not thats it nothing more
 
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As I work for Hyundai I thought I would share with you all how the exhaust pops work.

The active variable exhaust valve lets you select different levels of exhaust sound, ranging from relatively restrained in normal mode to the crackling after-burn growls in N mode.
The crackling sounds like a rally car in fast upshifts occurs as the I30 N deliberately alters its engine parameters to ignite fuel later than normal combustion, thereby discharging the explosion of fuel into the exhaust manifold.
The valve is mounted on the right-hand exhaust tip and is controlled in three steps depending on the engine revs and torque:
0 per cent open, 50 per cent open and 100 per cent open.
 
I went for a drive in the sunshine today and opened the windows an inch to hear the exhaust better - the pops really are like a gun shot. I overtook a line of bikes and when I changed up the bangs made them jump. They all waved their fists at me and a bloke with his kid turned and waved at me grinning as I pulled away from a junction popping onto second gear.
It’s so addictive!!
 
I went for a drive in the sunshine today and opened the windows an inch to hear the exhaust better - the pops really are like a gun shot. I overtook a line of bikes and when I changed up the bangs made them jump. They all waved their fists at me and a bloke with his kid turned and waved at me grinning as I pulled away from a junction popping onto second gear.
It’s so addictive!!

This post has just put a massive grin on my face:D.

This is what it’s all about.:);):cool::D
 
I went for a drive in the sunshine today and opened the windows an inch to hear the exhaust better - the pops really are like a gun shot. I overtook a line of bikes and when I changed up the bangs made them jump. They all waved their fists at me and a bloke with his kid turned and waved at me grinning as I pulled away from a junction popping onto second gear.
It’s so addictive!!

Spot on! :cool:
 
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Hi everyone. After having mine for almost three weeks and 3500km, yesterday I noticed pops and bangs went away during one of my drives. Today after a longer journey in the early afternoon they were back, and gone again after leaving the car parked outside for a couple of hours. We are having unusually cold couple of days (-10 centigrade in the morning and around -3 mid-day) so my theory is that is has to have something to do with ambient temperature. Maybe with the fact that exhaust cannot get hot enough... ?

It's driving me nuts, so if I hope someone from Hyundai could shed some light onto this. There just has to be a logic in the process, I don't buy to the fact that it comes and goes as it pleases :)
 
Yeah - very odd today, had some nice loud ones this morning before 7am on my way to work, but nothing on the way home after 3pm. Car showed between -1 and 1°C in both directions, so there's obviously more to it than that. o_O

Still, at least the "no AEB" warning didn't pop up at all today. :rolleyes::D
 
Hi everyone. After having mine for almost three weeks and 3500km, yesterday I noticed pops and bangs went away during one of my drives. Today after a longer journey in the early afternoon they were back, and gone again after leaving the car parked outside for a couple of hours. We are having unusually cold couple of days (-10 centigrade in the morning and around -3 mid-day) so my theory is that is has to have something to do with ambient temperature. Maybe with the fact that exhaust cannot get hot enough... ?

It's driving me nuts, so if I hope someone from Hyundai could shed some light onto this. There just has to be a logic in the process, I don't buy to the fact that it comes and goes as it pleases :)
Same here, -12degC and not much coming from the exhaust, even on longer journeys. I'm sure it will be back when it warms up again.
 
Since the noises are generated downstream in the exhaust maybe the injector or other like fuel delivery mechanism is temporarily clogged
 
Same here, -12degC and not much coming from the exhaust, even on longer journeys. I'm sure it will be back when it warms up again.

The weather in Slovakia is supposed to break on Sunday and we should have +8 celsius temps next week. I'll give it a go once it gets warmer and keep you posted.