Alpine A110 induction pipe noise
Discussion
I am considering buying an Alpine. After initially enjoying a test drive in a Pure without sports exhaust, in a second car (a Legende) I found the noise too intrusive just running along at 50 mph. I understand this is because of the sports exhaust fitted to most cars. However it has been suggested you can disconnect the pipe (induction pipe?) that leads to the bulkhead and someone has helpfully posted some pictures showing he did this and it really helped to reduce the general background noise. Have other people done this to their sports exhaust? What is your experience if you have done this. If I had to limit my search to cars without the sports exhaust I would have a very limited number of cars to choose from, but if I can disconnect that pipe without it affecting the engine and the warranty then perhaps I can consider cars with the sports exhaust. It is all a bit confusing because some people say it is not noisy in normal mode, only in sport or track mode but I found it noisy in normal. I am a GT type driver who likes a quiet car when cruising and only wants an interesting noise when coming off the motorway onto a B road.
Many thanks folks. The bung behind the seat is so cheap and simple I could buy one, try it out on a car before purchase and then if it did not do the job I have not spent zillions on a car that I do not enjoy. The one that affects the intake might put it out of warranty so that might need more thought but thanks for that option/idea too.
Interesting. Could be I was going up something of an incline. It was not flat where I was testing. I might need to check things out with another dealer. I do also wonder if there is more noise when it is the uprated engine, 300 hp rather than the 248 hp. Could that be part of the issue?
rosedavid said:
Many thanks folks. The bung behind the seat is so cheap and simple I could buy one, try it out on a car before purchase and then if it did not do the job I have not spent zillions on a car that I do not enjoy. The one that affects the intake might put it out of warranty so that might need more thought but thanks for that option/idea too.
Not sure what you are talking about!?!The artificial intake noise is made by that small bypass hose starting at the intake towards intercooler hose and ending at the rear bulkhead. There is no other thing affecting the intake noise. And that "bung" is not an ON/OFF solution when going on a ride, installation takes a while... removing the engine cover, replacing the plastic cup thingy at the bulkhead, loosening the hose clamps and replacing it with the little tube... no pleasure with a hot engine.
https://www.pistonheads.com/gassing/topic.asp?h=0&...
Posted this a long time ago a simple piece of high density foam does the job. It won't effect your warranty, it does nothing but stop the intrusive noise.
Posted this a long time ago a simple piece of high density foam does the job. It won't effect your warranty, it does nothing but stop the intrusive noise.
neil-g8km6 said:
https://www.pistonheads.com/gassing/topic.asp?h=0&...
Posted this a long time ago a simple piece of high density foam does the job. It won't effect your warranty, it does nothing but stop the intrusive noise.
I've done that on mine, it works. I've also placed a couple of garden furniture seat cushions behind the seats as well.Posted this a long time ago a simple piece of high density foam does the job. It won't effect your warranty, it does nothing but stop the intrusive noise.
Fear not, the intake air filter box is a large black plastic object to the left of the cooling fans. The sound resonator just ports intake noise into the cab and doesn't effect the performance of your car at all, it's all phycological, to some noise=an increase in performance, strange.
Perhaps, but if you can hardly hear the engine, it’s one less clue about what the car is doing or is about to do. Already, I’m very short on steering feel, compared to many cars I’ve owned & not being able to hear the engine doesn’t help either. If you can hear the revs jump a tiny fraction, as you accelerate off a wet roundabout, that’s a clue that you’re getting close to a situation you may not want to be in. Hearing it as well as feeling it, or just before you start feeling it is very useful. I’ve got the standard exhaust & no sound pipe, & when I’m not so busy, I’ll be doing something to improve this situation.
I have an aftermarket sports exhaust, with valve, still in its box. I hope to fit it & rig up the valve, so I decide when the valve is open/closed, rather than the car deciding for me.
I have an aftermarket sports exhaust, with valve, still in its box. I hope to fit it & rig up the valve, so I decide when the valve is open/closed, rather than the car deciding for me.
I have a 2018 PE, comes standard with the sports exhaust and internally piped sound resonator,
you would have to be profoundly deaf not to hear the engine. The fitting of high density foam helped to reduce the induction noise but I also disconnected the sports exhaust actuator, simple really as it's electrically operated and just needed disconnecting. It's found behind the off side rear wheel arch, I did a write up. Yes it reduced the drone at motorway speeds but reduced the cars performance so I reconnected it. I presume it plays an important part in the cars mapping of the ECU, performance tailed off higher up the rev range.
I do track the car regularly where noise is not an issue, it's the boaring motorway driving that annoys me.
Good luck with hitting your sports exhaust, hope you enjoy it.
you would have to be profoundly deaf not to hear the engine. The fitting of high density foam helped to reduce the induction noise but I also disconnected the sports exhaust actuator, simple really as it's electrically operated and just needed disconnecting. It's found behind the off side rear wheel arch, I did a write up. Yes it reduced the drone at motorway speeds but reduced the cars performance so I reconnected it. I presume it plays an important part in the cars mapping of the ECU, performance tailed off higher up the rev range.
I do track the car regularly where noise is not an issue, it's the boaring motorway driving that annoys me.
Good luck with hitting your sports exhaust, hope you enjoy it.
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