Making a V8 Diesel sound better
Discussion
I have a V8 diesel in my Panamera. While the car is very quick and has laugh out loud levels of torque, the only place it lacks for me is that engine noise.. or lack of. There's certainly a muted V8 grunts undertone to the whole experience but thats about it. Not even any turbo noises really.
Would a custom exhaust system be worth while on this to open up a bit of noise? or just a cat back perhaps? or am i wasting my time! I have no idea what noises to expect and if it would sound pants, I'm hoping because it has 8 cylinders it can still sound pleasing.
not looking for 'buy a petrol' posts and I'm aware it wont sound like a Corvette or bang and crack like a C63. and yes diesel is the devils juice etc etc. just wondering if anyone else here has opened up a bit more pleasing noises from a V8 Diesel as I'm not finding much on the 'tube to help.
cheers.
Would a custom exhaust system be worth while on this to open up a bit of noise? or just a cat back perhaps? or am i wasting my time! I have no idea what noises to expect and if it would sound pants, I'm hoping because it has 8 cylinders it can still sound pleasing.
not looking for 'buy a petrol' posts and I'm aware it wont sound like a Corvette or bang and crack like a C63. and yes diesel is the devils juice etc etc. just wondering if anyone else here has opened up a bit more pleasing noises from a V8 Diesel as I'm not finding much on the 'tube to help.
cheers.
thanks guys.
i have read the euro6 adblue engine is quieter than old, although theres nothing to compare to on mine as its the SQ7 engine. (the difference in noise common discussed is between the new & old 4.2 v8 diesel in the cayenne i believe).
not sure what i think about those sound boosters, essentially speakers stuck just before the silencers. I think a cat back to free up some noise could be the solution. Long as it doesn't drone inside of course.. can't be dealing with that.
i have read the euro6 adblue engine is quieter than old, although theres nothing to compare to on mine as its the SQ7 engine. (the difference in noise common discussed is between the new & old 4.2 v8 diesel in the cayenne i believe).
not sure what i think about those sound boosters, essentially speakers stuck just before the silencers. I think a cat back to free up some noise could be the solution. Long as it doesn't drone inside of course.. can't be dealing with that.
A turbo diesel will always be a lot quieter than a non-turbo petrol engine due to the turbo acting as a very effective silencer.
Given the right exhaust system, a V8 diesel should still sound very nice though.
Have you ever heard a diesel Scania V8 with straight pipes? One of the best sounds out there.
In my experience Porsche massively over silence their cars. My 911 required some Fabspeed race mufflers to sound decent.
I have a 4.8S V8 Cayenne and it was stupidly quiet for such an engine.
I've just had to remove the cats and 'straight pipe' the exhaust system all the way to the back box to get it sounding fruity.
With your car, I think if you ran a straight pipe exhaust system from the cats right to the tailpipes it would sound good.
To give you an idea of the sound, here's a Merc E420 V8 diesel with no silencers. Just the Cats and straight pipes to the rear.
I think it sounds very good.
https://youtu.be/cWIIIyOwSak
Given the right exhaust system, a V8 diesel should still sound very nice though.
Have you ever heard a diesel Scania V8 with straight pipes? One of the best sounds out there.
In my experience Porsche massively over silence their cars. My 911 required some Fabspeed race mufflers to sound decent.
I have a 4.8S V8 Cayenne and it was stupidly quiet for such an engine.
I've just had to remove the cats and 'straight pipe' the exhaust system all the way to the back box to get it sounding fruity.
With your car, I think if you ran a straight pipe exhaust system from the cats right to the tailpipes it would sound good.
To give you an idea of the sound, here's a Merc E420 V8 diesel with no silencers. Just the Cats and straight pipes to the rear.
I think it sounds very good.
https://youtu.be/cWIIIyOwSak
Edited by anonymous-user on Sunday 28th October 21:04
leigh1050 said:
It's a tractor engine! It will always sound s
t!
You are showing your ignorance there.t!Spend a few mins watching this with the sound turned up and you'll realise that 6-12 cylinder diesel engines sound better than 90% of cars on the road.
https://youtu.be/7nS4GmAR_ow
And that's even before you get to things like hearing the amazing noises made by Caterpillar or Detroit Diesel engines.
DanielSan said:
That's just sad.Lord Marylebone said:
leigh1050 said:
It's a tractor engine! It will always sound st!
You are showing your ignorance there.t!Spend a few mins watching this with the sound turned up and you'll realise that 6-12 cylinder diesel engines sound better than 90% of cars on the road.
https://youtu.be/7nS4GmAR_ow
And that's even before you get to things like hearing the amazing noises made by Caterpillar or Detroit Diesel engines.
I run a straight though system on my MK2 Golf TDI (old 1.9 mechanical pump TDI) so its a straight pipe from turbo to back, it grunts and whistles, sounds quite good.
I ran a similar set up on my 2.0TDI PD170 Leon a fair few years ago but that was 3" from turbo to back. That was stupidly loud and barked when you blipped the throttle. Think Scania V8 loud.
Cheapest way for you would be to get a local place to remove a box/boxes off exhaust until your happy with the sound. Not sure how many boxes the OEM system has.
I ran a similar set up on my 2.0TDI PD170 Leon a fair few years ago but that was 3" from turbo to back. That was stupidly loud and barked when you blipped the throttle. Think Scania V8 loud.
Cheapest way for you would be to get a local place to remove a box/boxes off exhaust until your happy with the sound. Not sure how many boxes the OEM system has.
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