How quiet can a BEC be ?

[gobber man]

Hello all,

Quick question.

At the risk of seeming like a big girls blouse...

I live just next to a small village so need a "quiet" car.
Could a BEC Fury or Stuart Taylor be made much quieter at low revs ?

[Antony Moxey]

gobber man said:

I live just next to a small village so need a "quiet" car.

At the risk of asking the obvious: "Why?"
Are motorbikes banned from this village? If not, then what's the problem?

[Mikey G]

A lot of the noise on mine seems to be from the induction. I dont have an airbox but sock filters instead which would probably make a difference.
Good choice of silencer would help.

Just drive it slow in the village

[gefopsman]

Alternatively you could set up a double glazing firm and offer a discount to all the locals who suffer from loud neighbours!!!

[Jon Ison]

Mikey G said:

Just drive it slow in the village

Got to be the simple answer surely ?

[GTWayne]

Have you considered a by-pass valve/flap fitted in line?

[andygtt]

So what will you be bypassing Wayne? I intend to do this on my GTT but thats to rid myself of a few silencers at full chat.

I must say that this noise thing is something that troubles me a little.... I spent a lot of money making my Ultima a geuine track legal car, and I don't want to be having the same issue with my little BEC.
For that reason I am using the std airbox (yes it does fit under the bonet) and will experiment with decent bike cans to keep the car legal.

>> Edited by andygtt on Monday 22 May 18:23

[ferg]

GTWayne said:

Have you considered a by-pass ?

That would certainly make the village quieter.

[Jubal]

andygtt said:

For that reason I am using the std airbox (yes it does fit under the bonet) and will experiment with decent bike cans to keep the car legal.

My Indyblade has the std airbox mounted upside down to fit under the bonnet and managed 98db static at Oulton. I'm running the standard MK exhaust. Seems a good compromise as a lot of people have issues with BEC noise. A bike can may help further, I may risk booking a day at Donny if I ever get round to acquiring and fitting one.

Edited to say that at pootling revs there's no issue with neighbours in the village. In comparison to my last track car I think they are relieved

>> Edited by Jubal on Monday 22 May 21:23

[Gobber Man]

Thanks for the replies.

First off I should have mentioned that I live in the middle of the country side in central Italy (Marche) My neighbours are mostly farmers, very nice just not used to seeing/hearing "sports cars" driven with gusto. So in short, to make live easy it is best to keep a low profile in terms of noise (siesta time is taken really seriously!)

Mikey G - "Just drive it slow in the village" - this is kind of what I am planning. The best low-tech approach so far!

Gefopsman - "double glazing" - Don't think the Nuns would go for it.

Andygtt - "std airbox...will experiment" - Very interested how you get on with the MK. Keep us posted with progress on your self built car, looks very promising. Also, why did you sell the Ultima ?

Jubal - "Indyblade...98db static" - Please keep us updated if you have luck with a bike cam and good luck at Donny. "at pootling revs there's no issue" - good news!

Anyone else had much experience with quietening BEC ???

[Kiwi XTR2]

Mikey G said:

A lot of the noise on mine seems to be from the induction. I dont have an airbox but sock filters instead which would probably make a difference . . .

My 'busa is a very-sucky-motor and the loudest thing was the induction. I replaced the foam filters with a custom-built aluminium air-box but with the engine behind me in the XTR² I have a lot more room to play with.

Works really well ! !