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How To Quieten My Engine Down!


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#1 blackbelt1990

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Posted 11 August 2015 - 05:39 PM

Evening all.

I'm contemplating replacing the cone filter on my 1380 with the standard air box. I've had a cone on for years and years and years but it's doing my head in now!
I've got a twin box standard bore maniflow exhaust, can anyone suggest any more changes I could make to quiet my engine down?
Cheers

#2 hoppus

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Posted 11 August 2015 - 05:41 PM

A dash cuts out a lot of the resonating sound if you don't have one already :)

It's surprising how much a different it makes! 



#3 blackbelt1990

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Posted 11 August 2015 - 05:45 PM

The interior of my car is pretty much standard, I have this awful droning in my ears after a long drive and I can never hear the radio! Lol

#4 hoppus

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Posted 11 August 2015 - 05:58 PM

The interior of my car is pretty much standard, I have this awful droning in my ears after a long drive and I can never hear the radio! Lol

 

I know the feeling  :D

You can obviously get bonnet soundproofing, how much difference it would make i'm not sure!



#5 thedjse

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Posted 11 August 2015 - 06:00 PM

Going from cone to standard will quieten down the engine noise, as said some soundproofing may help.



#6 Batmini

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Posted 11 August 2015 - 06:01 PM

The interior of my car is pretty much standard, I have this awful droning in my ears after a long drive and I can never hear the radio! Lol


Leave the wife at home !

#7 Cooperman

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Posted 11 August 2015 - 06:48 PM

That's what Minis are like. They were like it since production began and it's a part of what they are - old classic cars ;D .



#8 Spider

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Posted 11 August 2015 - 07:52 PM

I've found fitting dashboards with sound proofing material behind helps as well as underlay under the carpet, be sure to run the carpet and underlay right up to under the dash. Also there is a heavy sound proof mat (rubberised material, but it's not rubber) that can fit in the engine bay over the upper firewall. While not ending up as quiet as a late model bigger car, it certainly does cut down the noise quite a bit.



#9 blackbelt1990

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Posted 11 August 2015 - 08:39 PM

That's what Minis are like. They were like it since production began and it's a part of what they are - old classic cars ;D .


Haha, I'm not expecting it to be as quiet as my daily but my old cooper was quieter than this one... and that was made out of holes! Lollll

#10 Mini ManannĂ¡n

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Posted 11 August 2015 - 08:42 PM

I'm attempting to bridge the gap between the deeper, more modern style dash route (acres of dashboard in front of the wheel) and ye olde classic style.  Like Cooperman says though, it's an old design and we have to suck it.  



#11 blacktulip

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Posted 11 August 2015 - 09:53 PM

I have fitted firewall and under bonnet sound deadening and it has helped a lot. An air box with a k&n element would help too.

#12 peter-b

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Posted 12 August 2015 - 08:14 AM

The plastic air filters seem more sound deadening than the tin ones. Alloy rocker covers help marginly, plastic radiator fans and fibre exhaust shield from later cars. Every little bit helps.

#13 blackbelt1990

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Posted 12 August 2015 - 10:16 PM

I did buy a load of underlay a while ago, I might attach some to the back of my dash and under the top dash rail? I took my mum's standard '82 HL for its MOT today and it was like driving a completely different car! :(

#14 blackbelt1990

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Posted 23 August 2015 - 08:33 PM

So, quick update. Drove 2 hours on the motorway today and at 70mph the noise level is 90 decibels! Luckily I'd bought ear plugs which softened the blow but surely there's a better solution?!

#15 Dale_

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Posted 23 August 2015 - 09:17 PM

Change to an spi or mpi as there seem to be a lot quieter! :) other than that it's like the others have said it was made like it and it's part of the car... :)




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